Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc

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Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-11-2013

Hi guys, like In the subiect,

I have installed oryginal om606 from '99 W124 In Mercedes G W463.

I have prepared decent intake with large IC and equipped the engine with 7,5 mm 140cc pump by dieselmeken. Also 3 inch exhaust has been made, and copper custom Radiator. Now the problem sits In turbo, it's Garrett GT2359v from 320 CDI. As you may know, this a variable turbo controlled by just an actuator valve set up for 1,2bar. Without valve IT producent well over 2bar, by when the pump is intalled IT runs ustable rpm. The turbo spools up quicky, hovever the engine won't go over 3k rpm and later on vibrates. The cause may be that the exhoust housing is be too small and the old oryginal exhaust manifold leaks because of the back pressure. Also IT heats up pretty quickly.

My idea is to replace oryginal exhaust manifold with custom made, buy bigger turbo + westgate valve + boost controller.

My aim is to reach 1,5-2bar and burn that fuel that dieselmeken brought.

What would you choose: GT3776 or HX35?

My aim is 350-400hp

BTW, thank you guys for All those wonderfull discussions i have been reading for atmost a year now on this forum. Unfortunately I think i got to the point where I need your help...

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Bangaway - 06-11-2013

From what I've seen 140cc and a HX40 work good. I would like to see some pictures of all the work you describe. It all sounds good.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-11-2013

(06-11-2013, 03:11 PM)Bangaway From what I've seen 140cc and a HX40 work good. I would like to see some pictures of all the work you describe. It all sounds good.

Hi, here it goes..

the first movie prior installation of 7,5mm pump, the old one was on 6mm elements from OM603. Intercooler was from Toyota Land Criuser 3,0 TD and standard cooling... it already had the GT2359v installed as well.

https://www.youtube.com/watch?v=VxIvjd5NniI

Here's how it ran at that time..

https://www.youtube.com/watch?v=yyo-d6tJJ-g

here's how the exhaust look like now..

[Image: img0194odk.jpg]

Then we have exchanged Mercedes ASB automatic transmission with 5 speed manual transmision also comming from G, reinforced clutch and now it can go 60mph/100km/h with just 1900 RPM..

After that pump came from dieselmeken and things got messed up as I mentioned earlier. the exhaust was temporarily dismounted to check with backpressure on downpipe only..

http://www.youtube.com/watch?v=s7r5Z-pwLl8&feature=youtu.be

here's how it would react on the orad and would not spin more than 3000 rmp..

http://www.youtube.com/watch?v=RcOoqWMvu4Y&feature=youtu.be

And.. the pics of the car itself...

[Image: img0131op.jpg]

I'll do more detailed pics after install...

BTW, is WG 60mm ok for HX35?
Should I really go for HX40? would'n it spool up too late?
@ which RPM does it stand up?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - HaavardPYA - 06-11-2013

Damn nice G! What year is it from?

Regard

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Gforce - 06-11-2013

Nice G, i will be building a w460 with om605 soon

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-11-2013

1994

She's gonna get her new dress after we are done with the heart ;-)...

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Bangaway - 06-11-2013

I'm jealous. Nice work. Keep the updates coming.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - EDH_Performance - 06-12-2013

Some HY35 has super profile 60mm compressor, they all have 9cm ex housing! So combined with a big external wg it will be a good and quick spooling turbo Wink

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-12-2013

(06-12-2013, 08:40 AM)EDH_Performance Some HY35 has super profile 60mm compressor, they all have 9cm ex housing! So combined with a big external wg it will be a good and quick spooling turbo

HY35 is not available here in PL.. Sad

(( I am closer and closer to stick to HX35W CAST 4039044 and 44mm WG + boost controller.

Would that setup gimme what I need? Smile

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - dieselmeken - 06-12-2013

(06-12-2013, 10:31 AM)Domino81
(06-12-2013, 08:40 AM)EDH_Performance Some HY35 has super profile 60mm compressor, they all have 9cm ex housing! So combined with a big external wg it will be a good and quick spooling turbo

HY35 is not available here in PL.. (( I am closer and closer to stick to HX35W CAST 4039044 and 44mm WG + boost controller.

Would that setup gimme what I need?

Take away the exhaust break. VNT really sucks on MB superengines.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-12-2013

(06-12-2013, 11:38 AM)dieselmeken
(06-12-2013, 10:31 AM)Domino81
(06-12-2013, 08:40 AM)EDH_Performance Some HY35 has super profile 60mm compressor, they all have 9cm ex housing! So combined with a big external wg it will be a good and quick spooling turbo

HY35 is not available here in PL.. (( I am closer and closer to stick to HX35W CAST 4039044 and 44mm WG + boost controller.

Would that setup gimme what I need?

Take away the exhaust break. VNT really sucks on MB superengines.

If you mean turbo vacuum controller it has already been disabled.. Or do you mean something else?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - dieselmeken - 06-12-2013

(06-12-2013, 11:59 AM)Domino81
(06-12-2013, 11:38 AM)dieselmeken
(06-12-2013, 10:31 AM)Domino81 HY35 is not available here in PL.. (( I am closer and closer to stick to HX35W CAST 4039044 and 44mm WG + boost controller.

Would that setup gimme what I need?

Take away the exhaust break. VNT really sucks on MB superengines.

If you mean turbo vacuum controller it has already been disabled.. Or do you mean something else?

No that was what i meant.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-14-2013

Ok, got some goodies, WG, boost controller and Turbo, which was a good occasion I think. It's refubrished Holset and seems to be in a good condition. The only problem is that I thought I was buying HX40W, and still don't know what it exatly is...

The numbers on the hot part would say It's rether HX35.. or maybe a hybrid of some kind?

anybody seen anything like that?

One thing I know for sure - it won't cause any backpressure issues taking it's size into account.

We'll see how it spoolsup in a couple of days once the exhaust manifold is well done.

Would like to go about 1,5-1,6 bar.

What is a safe limit then? what gas/mileage can I expect?

[Image: 9bdf.jpg]

[img]ttp://imageshack.us/a/img593/9674/55hj.jpg[/img]

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-15-2013

(06-11-2013, 04:53 PM)HaavardPYA Damn nice G! What year is it from?

Regard

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-15-2013

Hi,

I think if you want to use it on off-road too, than you shuld use VGT.
Because with waste gate turbo it will sloop up so late, that your car you can not drive confortable. You must get much more hp to offset your lack of torque.
You do not need any more horsepower, but torque for your big (weighty) car.

Offroaddieselhu

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-15-2013

(06-15-2013, 12:47 PM)offroaddieselhu Hi,

I think if you want to use it on off-road too, than you shuld use VGT.
Because with waste gate turbo it will sloop up so late, that your car you can not drive confortable. You must get much more hp to offset your lack of torque.
You do not need any more horsepower, but torque for your big (weighty) car.

Offroaddieselhu

already VGT is not enough, 1,5 Bar and the turbo causes back pressure, it spools up as soon as 1500rpm, but WG seemss neccessary after pump install...

You are right...torque would be niece. Especially taking trial-kind-of-ride into account.

we'll see what happens after install.. Holset wasn't that expensive after all.. 120 eur..

BTW, about 2 years ago I went to Hungary for a company event. As a part of the program, we went for Off-road "advanture". The owner of the company organizing this event was former europer champion in off-road rallys. In our disposal was 4Xjimmi and 2 G-class from Bundeswehr.. And! Rally Short G-Class owned by owner Smile

.. double Shock suspension, carbon fibre body parts. I was put in pilot seat. It was powered by Sprinter 2,9 TD with some serious mods. God, I was impressed!!

That is when it all started I think..

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-16-2013

(06-15-2013, 07:43 PM)Domino81
(06-15-2013, 12:47 PM)offroaddieselhu Hi,

I think if you want to use it on off-road too, than you shuld use VGT.
Because with waste gate turbo it will sloop up so late, that your car you can not drive confortable. You must get much more hp to offset your lack of torque.
You do not need any more horsepower, but torque for your big (weighty) car.

Offroaddieselhu

already VGT is not enough, 1,5 Bar and the turbo causes back pressure, it spools up as soon as 1500rpm, but WG seemss neccessary after pump install...

You are right...torque would be niece. Especially taking trial-kind-of-ride into account.

we'll see what happens after install.. Holset wasn't that expensive after all.. 120 eur..

BTW, about 2 years ago I went to Hungary for a company event. As a part of the program, we went for Off-road "advanture". The owner of the company organizing this event was former europer champion in off-road rallys. In our disposal was 4Xjimmi and 2 G-class from Bundeswehr.. And! Rally Short G-Class owned by owner .. double Shock suspension, carbon fibre body parts. I was put in pilot seat. It was powered by Sprinter 2,9 TD with some serious mods. God, I was impressed!!

That is when it all started I think..

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-16-2013

OK, I found that the turbine has 3 different numbers:

Inducer: Holset HX40W
Mid part: Holset HX35
Exducer: 3523066 16 129 - looks like a 16cm housing, but no idea what 129 means..

Nevertheless Typical HX40 has 18cm housing, which might mean that it will spool up a bit faster..

What Can I do basically to make it spool up as fast as possible?
Devil sits in the details? Exhaust Manifold?
It will be extremely hard to find a place under the hood for this big turbo and decent manifold at the same time.. Engine Bay in G is smaller than everybody anticipates..

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - MFSuper90 - 06-16-2013

That right there is what we Americans call an hx35/40 hybrid Big Grin

Lots of people with 5.9 Cummins run them, also Import cars seem to like them also (honda civics, toyotas etc)

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-16-2013

(06-16-2013, 04:42 PM)MFSuper90 That right there is what we Americans call an hx35/40 hybrid
Lots of people with 5.9 Cummins run them, also Import cars seem to like them also (honda civics, toyotas etc)

SMELLS LIKE A GOOD DIESEL ;-)

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - anjay - 06-16-2013

You do realize that big turbo will give you high boost and power at high rpm only. Normal driving could be without any mingful boost. Where about are you in Poland?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-17-2013

(06-16-2013, 10:27 PM)anjay You do realize that big turbo will give you high boost and power at high rpm only. Normal driving could be without any mingful boost. Where about are you in Poland?

But isn't that what om606 is all about?
I had a choice of no power or at least power on high rpm's. What's more i wouldn't like to see much boost before 2k rpm. When rock crawling i just need enough torque to push the car forward when reductor is on..

Im in Warsaw.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - AlanMcR - 06-17-2013

(06-17-2013, 01:49 AM)Domino81
(06-16-2013, 10:27 PM)anjay You do realize that big turbo will give you high boost and power at high rpm only. Normal driving could be without any mingful boost. Where about are you in Poland?

But isn't that what om606 is all about?
I had a choice of no power or at least power on high rpm's. What's more i wouldn't like to see much boost before 2k rpm. When rock crawling i just need enough torque to push the car forward when reductor is on..

Im in Warsaw.

Just disable the turbo when you are rock crawling. On the original (electronic pump) OM606 setup, disabling the turbo is as simple as pulling off the vacuum line and plugging it. Your setup will require some other sort of hack to kill the turbo.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-17-2013

I seems simple, with WG and boost controller... Smile

Thanks for the advice, but what would be the reason to do so?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - AlanMcR - 06-18-2013

(06-17-2013, 05:20 PM)Domino81 I seems simple, with WG and boost controller...
Thanks for the advice, but what would be the reason to do so?

If that is in response to my comment about turning off the turbo for rock crawling ... Then the reason is to create a very predictable power curve, without any pesky turbo behavior. In low range on rocks, it takes very little torque to get the job done. Being smooth and predictable is more important.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-18-2013

(06-18-2013, 02:16 AM)AlanMcR
(06-17-2013, 05:20 PM)Domino81 I seems simple, with WG and boost controller...
Thanks for the advice, but what would be the reason to do so?

If that is in response to my comment about turning off the turbo for rock crawling ... Then the reason is to create a very predictable power curve, without any pesky turbo behavior. In low range on rocks, it takes very little torque to get the job done. Being smooth and predictable is more important.

You are right, on the other hand, turbo won't spool up earlier than 3K RPM, so, just for extra slow crawling it should be enough.. I'll have to try anyways Smile

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - AlanMcR - 06-18-2013

(06-18-2013, 04:27 AM)Domino81
(06-18-2013, 02:16 AM)AlanMcR If that is in response to my comment about turning off the turbo for rock crawling ... Then the reason is to create a very predictable power curve, without any pesky turbo behavior. In low range on rocks, it takes very little torque to get the job done. Being smooth and predictable is more important.

You are right, on the other hand, turbo won't spool up earlier than 3K RPM, so, just for extra slow crawling it should be enough.. I'll have to try anyways

Yeah, I have the stock 606 arrangement in by G. I'd like more more torque down lower for day to day driving, as well as some more HP. Figuring out how to do that with the engine controls isn't easy.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-18-2013

I'm so curious about the solution, wether it's exist with WG turbo.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-18-2013

(06-11-2013, 01:52 PM)Domino81 Hi guys, like In the subiect,

I have installed oryginal om606 from '99 W124 In Mercedes G W463.

I have prepared decent intake with large IC and equipped the engine with 7,5 mm 140cc pump by dieselmeken. Also 3 inch exhaust has been made, and copper custom Radiator. Now the problem sits In turbo, it's Garrett GT2359v from 320 CDI. As you may know, this a variable turbo controlled by just an actuator valve set up for 1,2bar. Without valve IT producent well over 2bar, by when the pump is intalled IT runs ustable rpm. The turbo spools up quicky, hovever the engine won't go over 3k rpm and later on vibrates. The cause may be that the exhoust housing is be too small and the old oryginal exhaust manifold leaks because of the back pressure. Also IT heats up pretty quickly.

My idea is to replace oryginal exhaust manifold with custom made, buy bigger turbo + westgate valve + boost controller.

My aim is to reach 1,5-2bar and burn that fuel that dieselmeken brought.

What would you choose: GT3776 or HX35?

My aim is 350-400hp

BTW, thank you guys for All those wonderfull discussions i have been reading for atmost a year now on this forum. Unfortunately I think i got to the point where I need your help...

How much do you think we can smoke in the car admissibility standards among you?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-18-2013

Don't really know... As long as the cloud behind the car limits your sight to no less than 2 metters, than it's ok Smile

seriously, have no idea..

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-19-2013

The G got a new Nardi Torino Alluminium+wood Old school to keep up with the interior Smile

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-20-2013

(06-11-2013, 04:08 PM)Domino81
(06-11-2013, 03:11 PM)Bangaway From what I've seen 140cc and a HX40 work good. I would like to see some pictures of all the work you describe. It all sounds good.

Hi, here it goes..

the first movie prior installation of 7,5mm pump, the old one was on 6mm elements from OM603. Intercooler was from Toyota Land Criuser 3,0 TD and standard cooling... it already had the GT2359v installed as well.

https://www.youtube.com/watch?v=VxIvjd5NniI

Here's how it ran at that time..

https://www.youtube.com/watch?v=yyo-d6tJJ-g

here's how the exhaust look like now..

Then we have exchanged Mercedes ASB automatic transmission with 5 speed manual transmision also comming from G, reinforced clutch and now it can go 60mph/100km/h with just 1900 RPM..

After that pump came from dieselmeken and things got messed up as I mentioned earlier. the exhaust was temporarily dismounted to check with backpressure on downpipe only..

http://www.youtube.com/watch?v=s7r5Z-pwLl8&feature=youtu.be

here's how it would react on the orad and would not spin more than 3000 rmp..

http://www.youtube.com/watch?v=RcOoqWMvu4Y&feature=youtu.be

And.. the pics of the car itself...

I'll do more detailed pics after install...

BTW, is WG 60mm ok for HX35?
Should I really go for HX40? would'n it spool up too late?
@ which RPM does it stand up?

I found my old measurement of OM606 + gt2359
60-100 5.7 sec
60-80 2.4 sec
60-120 9.8 sec
0-100 10.7 sec
oval automatic shifting (but it's doesn't work well, because it switched on and back) long G, with big wheels

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-21-2013

(06-20-2013, 04:28 PM)offroaddieselhu
(06-11-2013, 04:08 PM)Domino81
(06-11-2013, 03:11 PM)Bangaway From what I've seen 140cc and a HX40 work good. I would like to see some pictures of all the work you describe. It all sounds good.

Hi, here it goes..

the first movie prior installation of 7,5mm pump, the old one was on 6mm elements from OM603. Intercooler was from Toyota Land Criuser 3,0 TD and standard cooling... it already had the GT2359v installed as well.

https://www.youtube.com/watch?v=VxIvjd5NniI

Here's how it ran at that time..

https://www.youtube.com/watch?v=yyo-d6tJJ-g

here's how the exhaust look like now..

Then we have exchanged Mercedes ASB automatic transmission with 5 speed manual transmision also comming from G, reinforced clutch and now it can go 60mph/100km/h with just 1900 RPM..

After that pump came from dieselmeken and things got messed up as I mentioned earlier. the exhaust was temporarily dismounted to check with backpressure on downpipe only..

http://www.youtube.com/watch?v=s7r5Z-pwLl8&feature=youtu.be

here's how it would react on the orad and would not spin more than 3000 rmp..

http://www.youtube.com/watch?v=RcOoqWMvu4Y&feature=youtu.be

And.. the pics of the car itself...

I'll do more detailed pics after install...

BTW, is WG 60mm ok for HX35?
Should I really go for HX40? would'n it spool up too late?
@ which RPM does it stand up?

I found my old measurement of OM606 + gt2359
60-100 5.7 sec
60-80 2.4 sec
60-120 9.8 sec
0-100 10.7 sec
oval automatic shifting (but it's doesn't work well, because it switched on and back) long G, with big wheels

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-21-2013

That is almost twice faster than mine prior changes Smile

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - offroaddieselhu - 06-21-2013

(06-21-2013, 05:27 AM)Domino81 That is almost twice faster than mine prior changes

It is far from the quick! Your is simply slow Smile

(06-21-2013, 05:55 AM)offroaddieselhu
(06-21-2013, 05:27 AM)Domino81 That is almost twice faster than mine prior changes

It is far from the quick! Your is simply slow

what was your turbo pressure ?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 06-25-2013

Turo was set to produce 1,2 bar, but momentarily on build-up, it would go up to 1,5 bar before the vacuum actuator reacted. with VNT discharged, it would close the clock (my gauge is 2bar max).

I plan to start with 1,5 bar and go no higher than 2.

In the mean time, we are trying to weld the exhaust manifold. it becomes difficult because of claustrophobia under the hood. Each and every whole will be made of those two pipes welded together. Each pipe is then going to join sort of main line that will supply both turbo and wastegate valve. I am a bit worried about the gas flow within..

Nevertheless, some pics below...
and the IC with the copper radiator that I mentioned in the beginning.

[Image: qkop.jpg]

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 07-22-2013

[Image: z063.jpg]

First some minor leaks of pressure here and there.. but than finally we manageg to maintain the boost. Under pressure it went to about 1.5-1-7 Bar with wastegate disconnected...

But then above 4,5k rpm, the angry om 606 decided to burn the clutch - it lasted for about 500 metres of acceleration, than died completely..

somehow we got back to workshop on 1st. gear...

I need a stronger cluth - that's for sure..
and than there is the idle stability.. when the electronic stabilizer is plugged to the pump it freaks out..

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - INC - 07-23-2013

It will be newerendingstory with cluch failures. I test various cluches ~ 4 years. Now i`m happy owner of reinforced 722.6. And offroad driving and winching is much easy with automatic box.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 07-23-2013

Automatic - yes, in terrain it gives more control and eases the drive. That is why I need something more durable in terms of clutch when uphills are in consideration..

Nevertheless, I have resigned from ASB to go to manual - to gain also more controll on fuel consumption. The target for this car is expeditions to central Asia or Africa... that is why I have decided to go that way. @ 100kph it's 1900 RPM..

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - mantahead - 07-23-2013

hi,
any pics of that exhaust manifold?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 07-24-2013

(07-23-2013, 12:32 PM)mantahead hi,
any pics of that exhaust manifold?

Yes, but only that poor quality and already mounted..
can U see anything? Smile

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - mantahead - 07-24-2013

yea i can see thanks, 2 bends on each cylinder, different, never seen it done like that before.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 08-05-2013

Hi again, everyting is up and running, but I am not entirely satisfied (delicately describing).

1. Turbo gives max of 1,6 Bar with wastegate disconnected. Boostcontroller works and I am able to scale down the boost, but that is max. what i can reach right now.
2. I have played with hi and lo fuel on external ALDA with different smoking effects. I tried to get to the moment when under boost the smoke is barely visible.
3. I have no other gauges than just the boost Sad

4. Idle is a bit bumpy, and it's bumpy untill 2500 rpm.. than smooth... when it comes to bumpieness - in the beginning the pump was plugged to rpm stabilizer that caused engine to freak and go up and down with rpm 600-1200-600-1200 on and on.., so it was disconnected. After disconnecting, it would choke and die when in first gear and I tried to take-off. My mechanic decided to adjust the idle with the governor idle speed screw - it helped..
5. I can only Accelerate with pedal-to-the-metal on one of the gears, because water temp immediately goes to 100 Celsius degrees. If I continue (even without boost on 3k rpm) temp grows to about 105 degrees Sad

Only going on about 2K rpm helps to reduce the temp. Today's temp in Warsaw was about 29 degrees cellsius.

Is it exhaust manifold that might be crappy? - you've seen the pics - it's not a masterpiece in terms of shapes... but the space under G's hood is very limited...

Maybe intake is too small? - I need the air to go thru snorkel first, the smallest diameter is 60mm.. but in the previous setup the VNT garret would easilly reach over 2bar..

Is it turbo that needs replacement? (it was refubrished and cheap) it doesn't leak, everything seems to be ok..

Is it maybe something with the pump adjustment we have screwed-up?

Imagine going up-hill in those conditions, I would kill the engine instantly ;/

The only thing that i am satisfied with is power - way much better that previously.. but I would love to be able to use it.. I have invested in this double copper water radiator, which also plays the role of second oil radiator.

Please, i beg you - advise Smile

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - mantahead - 08-05-2013

hi,
water temps are very high, is thermostate ok?(remove it and test drive)
is waterpump working?

what is EGT'S
is pump timing ok?

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 08-05-2013

Hi, wisco is working i can see and hear the propeller spinning, as well as the pump.. it cools down engine back to 85 degrees in about 1 minute from 100-105 degrees after acceleration - this I guess couldn't be done without water pump beeing OK.

No idea on the EGT - no gauge installed..., but I would depend on AFR as I presume?

Timing, standard 15 ATDC - accordingly to Dieselmeken's advice.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - AlanMcR - 08-06-2013

Hate to say it, but this sounds like a blown headgasket to me.

The spiking temperature is the giveaway. Aside from a compression->water leak, there is no other way I can think of to heat up the coolant that quickly.

That was my experience with my OM606, which I had once severely overheated. The overheating stretched two headgasket. The engine ran fine at low to moderate power and temperature. At high power the stretched bolts failed to keep the compression in and the coolant temperature would spike, moving from 90C to 120C in less than a second. A new gasket and bolt set fixed that.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - dieselmeken - 08-06-2013

Bumpy low idle, That comes usually when the pump is wrong timed, in this case maybee 1/2 turn wrong?
How is it to start?
Hard to start, smoke at low idle, bumpy idle and hard knock high temperature = 1/2 turn wrong

Its not the right way to go, adjusting on the pumps idle screw, you can loose Power.
140cc 7,5mm pumps are good for 400+hp, that we have dynoresult on.
If you Think there is something wrong in the pump, please send it to me for check, I do it free of charge of course, only thing is the shipping from ypou to me, thats your cost.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 08-06-2013

I do not observe severe coolant loss, but! the gasket looks kind of glossy around... will do more kms this week and will observe on the coolant loss..
Someone told me that i should try to smell the coolant if i can feel any sign of exhaust gasses smell..

If the gasket will be blown - i should look around for good bolts - any suggestion on those?

The engine was never severely overheated - that's for sure.. of course depending on the definition of "severe overheat" - 105 degrees is not severe. Just to remind, the gasket has been replaced not long ago.. the head was polished and all valve movers replaced.

I deffinately do not think there is anything wrong with the pump... and I would like to try more settings prior shipping the pump back to you Goran.

To answer your questions:

1. It's fairly easy to start..
2. there is no smoke at low idle
3. bumpy idle - yes.. hard knock on the power - yes.

take a look at the video.. maybe you'll see or hear something that I don't... the engine is shaking a bit..
http://www.youtube.com/watch?v=wRczwN0zyL8

My Mechanic went for a vacation, can you point our which screw is that so I can adjust by myself? 1/2 turn wrong - CW or CCW?

Now in terms of timing, my mechanic said that the chain can be a bit stretched, which may require another adjustment to reach exactly 15 degrees.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - dieselmeken - 08-06-2013

(08-06-2013, 03:17 AM)Domino81 I do not observe severe coolant loss, but! the gasket looks kind of glossy around... will do more kms this week and will observe on the coolant loss..
Someone told me that i should try to smell the coolant if i can feel any sign of exhaust gasses smell..

If the gasket will be blown - i should look around for good bolts - any suggestion on those?

The engine was never severely overheated - that's for sure.. of course depending on the definition of "severe overheat" - 105 degrees is not severe. Just to remind, the gasket has been replaced not long ago.. the head was polished and all valve movers replaced.

I deffinately do not think there is anything wrong with the pump... and I would like to try more settings prior shipping the pump back to you Goran.

To answer your questions:

1. It's fairly easy to start..
2. there is no smoke at low idle
3. bumpy idle - yes.. hard knock on the power - yes.

take a look at the video.. maybe you'll see or hear something that I don't... the engine is shaking a bit..
http://www.youtube.com/watch?v=wRczwN0zyL8

My Mechanic went for a vacation, can you point our which screw is that so I can adjust by myself? 1/2 turn wrong - CW or CCW?

Now in terms of timing, my mechanic said that the chain can be a bit stretched, which may require another adjustment to reach exactly 15 degrees.

Well I dont know, but I think it runs quite stabil on low idle, knock may bee some wrong timing, try to just adjust the pump out from the engine block to get it a bit later in igniton.

RE: Which turbo om606 Mercedes G dieselmeken 7,5mm 140cc - Domino81 - 08-06-2013

ok, thanks, I will try that! - and will get back to the initial pump settings on idle..