Nozzles

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Sleek~silver602

K26-2

26

02-19-2015, 09:29 PM #1

So i have been reading all night on which nozzles to order for my OM606 98 E300. I have read that the SD315s flow more fuel but cant find them any where. the SD314's are suppose be a great nozzles but the stock nozzles are SD310's im so confused on what to order help please.

Sleek~silver602

02-19-2015, 09:29 PM #1

Huh So i have been reading all night on which nozzles to order for my OM606 98 E300. I have read that the SD315s flow more fuel but cant find them any where. the SD314's are suppose be a great nozzles but the stock nozzles are SD310's im so confused on what to order help please.

raysorenson

Superturbo

1,162

02-19-2015, 11:18 PM #2

What's wrong with the stock stuff? I never hear of anyone trying alternate nozzles on a 4v motor with better results than the 310's.

raysorenson

02-19-2015, 11:18 PM #2

What's wrong with the stock stuff? I never hear of anyone trying alternate nozzles on a 4v motor with better results than the 310's.

F.R.A.S

Holset

579

02-20-2015, 11:05 AM #3

The injectors flow what ever you give them in quantity so don't worry.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

F.R.A.S

02-20-2015, 11:05 AM #3

The injectors flow what ever you give them in quantity so don't worry.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

Sleek~silver602

K26-2

26

02-20-2015, 07:35 PM #4

Thanks so the sd 314 bosio are good. I'll get those ordered soon. The car has 190k im sure the nozzles are factory so they need to be changed but the reason i am changing them is because the car has a weird stumble(misfire) at idle once its warmed up. car runs awesome once its past 1500 rpms its a rocketship (to me i just bought it and i own a hopped up cummins) for what it is. hopefully the nozzles will resolve this issue. I am thought thinking its odd because it was -24F 2 nights ago and in the morning the car fired right up no issues at all. CEL on comes up as P300: multiple missfires.

Sleek~silver602

02-20-2015, 07:35 PM #4

Mr_Robs

GT2256V

124

02-20-2015, 10:59 PM #5

Keep us updated if the nozzles fix your missfire issue!

Mr_Robs

02-20-2015, 10:59 PM #5

Keep us updated if the nozzles fix your missfire issue!

F.R.A.S

Holset

579

02-21-2015, 05:25 AM #6

Or just clean the original injectors and change the little heat shield under the injectors. No need to replace them.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

F.R.A.S

02-21-2015, 05:25 AM #6

Or just clean the original injectors and change the little heat shield under the injectors. No need to replace them.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

Sleek~silver602

K26-2

26

02-21-2015, 01:15 PM #7

So idi nozzles aren't like DI where the pine wears down over time and atomization starts getting worse?

Sleek~silver602

02-21-2015, 01:15 PM #7

So idi nozzles aren't like DI where the pine wears down over time and atomization starts getting worse?

F.R.A.S

Holset

579

02-21-2015, 01:31 PM #8

(02-21-2015, 01:15 PM)Sleek~silver602 So idi nozzles aren't like DI where the pine wears down over time and atomization starts getting worse?

I'm no nozzle guru really but we have never replaced any. We just clean them up and change the pressure (and actually we don't do that either, Dieselmeken does that for us) Tongue

The nozzles in an IDI-engine are protected in a whole other way then in a DI engine where it's in the middle of combustion.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

F.R.A.S

02-21-2015, 01:31 PM #8

(02-21-2015, 01:15 PM)Sleek~silver602 So idi nozzles aren't like DI where the pine wears down over time and atomization starts getting worse?

I'm no nozzle guru really but we have never replaced any. We just clean them up and change the pressure (and actually we don't do that either, Dieselmeken does that for us) Tongue

The nozzles in an IDI-engine are protected in a whole other way then in a DI engine where it's in the middle of combustion.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

Sleek~silver602

K26-2

26

02-21-2015, 01:42 PM #9

True point... maybe I'll just take them out and have them cleaned repopped and heat shields. Is the special socket needed for removal?

Sleek~silver602

02-21-2015, 01:42 PM #9

True point... maybe I'll just take them out and have them cleaned repopped and heat shields. Is the special socket needed for removal?

F.R.A.S

Holset

579

02-21-2015, 02:09 PM #10

(02-21-2015, 01:42 PM)Sleek~silver602 True point... maybe I'll just take them out and have them cleaned repopped and heat shields. Is the special socket needed for removal?

Special socket, but available on eBay.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

F.R.A.S

02-21-2015, 02:09 PM #10

(02-21-2015, 01:42 PM)Sleek~silver602 True point... maybe I'll just take them out and have them cleaned repopped and heat shields. Is the special socket needed for removal?

Special socket, but available on eBay.

F-tune Performance [Image: V-band_om606.jpg]

I can help you out with all your manual transmission, clutch, flywheel, intake and exhaust manifold issues.

Duncansport

Holset

526

02-21-2015, 02:32 PM #11

i just use a long oxygens sensor socket 7/8th's .. Been using one for 15 years on 606's. Work fine, easy to find locally.

Duncansport

02-21-2015, 02:32 PM #11

i just use a long oxygens sensor socket 7/8th's .. Been using one for 15 years on 606's. Work fine, easy to find locally.

Sleek~silver602

K26-2

26

02-21-2015, 02:44 PM #12

Thanks man ^^

Sleek~silver602

02-21-2015, 02:44 PM #12

Thanks man ^^

barrote

Superturbo

1,627

02-21-2015, 03:10 PM #13

or a 20 22 mm plumber socket Wink

FD,
Powered by tractor fuel

barrote

02-21-2015, 03:10 PM #13

or a 20 22 mm plumber socket Wink

FD,
Powered by tractor fuel

Volker407

naturally aspirated

157

02-22-2015, 05:51 AM #14

(02-21-2015, 01:15 PM)Sleek~silver602 So idi nozzles aren't like DI where the pine wears down over time and atomization starts getting worse?

IDI nozzles also show wear but not as fast as DI nozzles.

DI nozzles can be completely done after 60.000miles

IDI nozzles mostly last 100.000miles without problems, but should be checked/replaced after 60.000 - 100.000miles.

After your mileage on the car and the misfire issues it really makes sense to put new nozzles in as even original IDI nozzles don ´ t last forever.

On the picture you see a used IDI needle from a car with 100.000miles (needle was extensively cleaned before taking pictures).

The cone section shows already noticeable cavitation pitting.

On the smaller cylindric section there is also wear in combination with deep scratch marks in the moving direction from heavy soot deposits. Those soot deposits can become hard enough to scratch the needle in the long term.

If you put such cleaned nozzles back in the car the engine will of course work due to the prechamber working principle.
But the spray quality is worse and you may still have issues like e.g. misfiring.

So no matter if you have 190.000miles or 190.000kilometers - buy new nozzles.

Gruß

Volker

Volker407

02-22-2015, 05:51 AM #14

(02-21-2015, 01:15 PM)Sleek~silver602 So idi nozzles aren't like DI where the pine wears down over time and atomization starts getting worse?

IDI nozzles also show wear but not as fast as DI nozzles.

DI nozzles can be completely done after 60.000miles

IDI nozzles mostly last 100.000miles without problems, but should be checked/replaced after 60.000 - 100.000miles.

After your mileage on the car and the misfire issues it really makes sense to put new nozzles in as even original IDI nozzles don ´ t last forever.

On the picture you see a used IDI needle from a car with 100.000miles (needle was extensively cleaned before taking pictures).

The cone section shows already noticeable cavitation pitting.

Gruß

Volker

Sleek~silver602

K26-2

26

02-22-2015, 09:48 AM #15

^^ that seems way more legit to me. Im looking at the bosio ones every where i have read they say the spray is second to none. perfect atomization.

Sleek~silver602

02-22-2015, 09:48 AM #15

^^ that seems way more legit to me. Im looking at the bosio ones every where i have read they say the spray is second to none. perfect atomization.

erx

w202 om606

323

02-22-2015, 10:11 AM #16

Before changing the nozzles just take off the injectors and let diesel shop to test them. Usually they really just need to be cleaned and no need to change the nozzles. My local diesel shop tests the injectors on manual bench with manual handle, just pressing extreme amount of fuel through the injector and that cleans the nozzle, simple. My 606 donor had over 460000km and diesel shop said there were genuine nozzles in the injectors, so with quality fuel half million km is no problem for merc nozzles.

This post was last modified: 02-22-2015, 10:41 AM by erx.

erx

02-22-2015, 10:11 AM #16

Sleek~silver602

K26-2

26

02-22-2015, 05:23 PM #17

I have access to a pop tester so ill check them but if the needles look like the ones volker posted cleaning them wont make them atomize right again the needle is shot.

Sleek~silver602

02-22-2015, 05:23 PM #17

I have access to a pop tester so ill check them but if the needles look like the ones volker posted cleaning them wont make them atomize right again the needle is shot.

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