STD Maintenance General Om603 water temp sensor

Om603 water temp sensor

Om603 water temp sensor

 
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Ducos
HX35

81
04-02-2011, 05:51 AM #1
I have been on google for over 4days. I cant locate the watertemp sensor.. Kind of depressed right now. We have a car race on sunday. I need the gauge to work Huh can anyone please gie me pointers? Or a photo or anything? Thanks alot. Have to weld the diff for the race also Smile
Ducos
04-02-2011, 05:51 AM #1

I have been on google for over 4days. I cant locate the watertemp sensor.. Kind of depressed right now. We have a car race on sunday. I need the gauge to work Huh can anyone please gie me pointers? Or a photo or anything? Thanks alot. Have to weld the diff for the race also Smile

Obi Kenobi
Unregistered

 
04-02-2011, 10:20 AM #2
(04-02-2011, 05:51 AM)Ducos I cant locate the watertemp sensor..
I need the gauge to work Huh can anyone please gie me pointers? Or a photo or anything? Thanks alot. Smile

on the engine block between 4 and 5 cylinder, on the level to IP, almost behind IP ...
Obi Kenobi
04-02-2011, 10:20 AM #2

(04-02-2011, 05:51 AM)Ducos I cant locate the watertemp sensor..
I need the gauge to work Huh can anyone please gie me pointers? Or a photo or anything? Thanks alot. Smile

on the engine block between 4 and 5 cylinder, on the level to IP, almost behind IP ...

babymog
K26-2

37
04-02-2011, 11:31 AM #3
Location is correct above, it will have 1 pin for the early type, 2 pins for the later "afterglow" GP relay.

'87 300TDT "Pandora"
Garrett T-30 .55 @ 18.5psi, .970 IP @ 13.5ATDC turned up, #22 head with oblique injection, 4-puck brakes, 215 Michelins on 16x8" Bellos, updates etc.
http://www.youtube.com/watch?v=RZCI0BTWKx8
babymog
04-02-2011, 11:31 AM #3

Location is correct above, it will have 1 pin for the early type, 2 pins for the later "afterglow" GP relay.


'87 300TDT "Pandora"
Garrett T-30 .55 @ 18.5psi, .970 IP @ 13.5ATDC turned up, #22 head with oblique injection, 4-puck brakes, 215 Michelins on 16x8" Bellos, updates etc.
http://www.youtube.com/watch?v=RZCI0BTWKx8

Ducos
HX35

81
04-02-2011, 02:36 PM #4
Thanks alot. Will try to locate it tomorrow:-) you dont happen to know what i am going to do to get the stock w201 2.5diesel tachometer(measure RPM) to work with the six cylinder? I hooked up + to 12v. And the signal to the alternator. When i rev to max it only will go from 0 to about 500rpm. Looks like it misses another number.
Ducos
04-02-2011, 02:36 PM #4

Thanks alot. Will try to locate it tomorrow:-) you dont happen to know what i am going to do to get the stock w201 2.5diesel tachometer(measure RPM) to work with the six cylinder? I hooked up + to 12v. And the signal to the alternator. When i rev to max it only will go from 0 to about 500rpm. Looks like it misses another number.

aaa
GT2256V

913
04-02-2011, 02:45 PM #5
I don't think you hook it to the alternator... there's a pickup from the flywheel ring gear teeth. You should have been able to use the old setup.
aaa
04-02-2011, 02:45 PM #5

I don't think you hook it to the alternator... there's a pickup from the flywheel ring gear teeth. You should have been able to use the old setup.

Ducos
HX35

81
04-03-2011, 05:43 PM #6
(04-02-2011, 02:45 PM)aaa I don't think you hook it to the alternator... there's a pickup from the flywheel ring gear teeth. You should have been able to use the old setup.

hmm. that could make sense. Is it like a plug i can hook up to, or is it a wire? can i reach it from above or do i need a lift?

thanks alot Smile
Ducos
04-03-2011, 05:43 PM #6

(04-02-2011, 02:45 PM)aaa I don't think you hook it to the alternator... there's a pickup from the flywheel ring gear teeth. You should have been able to use the old setup.

hmm. that could make sense. Is it like a plug i can hook up to, or is it a wire? can i reach it from above or do i need a lift?

thanks alot Smile

aaa
GT2256V

913
04-03-2011, 06:38 PM #7
Well I'm not sure if you can use it directly, it doesn't go to the tach directly stock. Anyhow, it's way on the bottom of the bellhousing, but the wire goes all the way to the top before crossing over the firewall.
aaa
04-03-2011, 06:38 PM #7

Well I'm not sure if you can use it directly, it doesn't go to the tach directly stock. Anyhow, it's way on the bottom of the bellhousing, but the wire goes all the way to the top before crossing over the firewall.

winmutt
bitbanger

3,468
04-04-2011, 11:47 PM #8
Drivers side of the bellhousing about 2/3 of the way down. You get to it from the bottom but no lift required. Just ramps or jackstands.

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
04-04-2011, 11:47 PM #8

Drivers side of the bellhousing about 2/3 of the way down. You get to it from the bottom but no lift required. Just ramps or jackstands.


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

Ducos
HX35

81
04-05-2011, 02:50 PM #9
thanks alot. I have now hooked up the water temp sensor and changed the thermostat, adapted the stock 300DT air filter box, made the w201 a silent killer Smile

But.. I used atleast 1hour to "get all the air out" did all kind of things, unscrewd the tempsensor on top of the upper radiator hose housing, squized almoast every hose in the car. But the engine still runs about 100-105dgC. (thermostat -> 85dgC). Im out of ideas.. Maybe the water pump? the radiator is really cold, only the top of the radiator is maybe 1/2 of the cars temp. bottom is ice cold. Frightens me.. Do you have a answer to this ? Confused Undecided

Edit: Using a Electric cooling fan with no brain, just a switch. And the heater
This post was last modified: 04-05-2011, 02:51 PM by Ducos.
Ducos
04-05-2011, 02:50 PM #9

thanks alot. I have now hooked up the water temp sensor and changed the thermostat, adapted the stock 300DT air filter box, made the w201 a silent killer Smile

But.. I used atleast 1hour to "get all the air out" did all kind of things, unscrewd the tempsensor on top of the upper radiator hose housing, squized almoast every hose in the car. But the engine still runs about 100-105dgC. (thermostat -> 85dgC). Im out of ideas.. Maybe the water pump? the radiator is really cold, only the top of the radiator is maybe 1/2 of the cars temp. bottom is ice cold. Frightens me.. Do you have a answer to this ? Confused Undecided

Edit: Using a Electric cooling fan with no brain, just a switch. And the heater

babymog
K26-2

37
04-05-2011, 03:59 PM #10
The stock setup uses an electric "auxiliary pump" which does a good job of pulling water/air through the head and heater core, pretty much self-purging with the heater on. Do you have this pump enabled?

'87 300TDT "Pandora"
Garrett T-30 .55 @ 18.5psi, .970 IP @ 13.5ATDC turned up, #22 head with oblique injection, 4-puck brakes, 215 Michelins on 16x8" Bellos, updates etc.
http://www.youtube.com/watch?v=RZCI0BTWKx8
babymog
04-05-2011, 03:59 PM #10

The stock setup uses an electric "auxiliary pump" which does a good job of pulling water/air through the head and heater core, pretty much self-purging with the heater on. Do you have this pump enabled?


'87 300TDT "Pandora"
Garrett T-30 .55 @ 18.5psi, .970 IP @ 13.5ATDC turned up, #22 head with oblique injection, 4-puck brakes, 215 Michelins on 16x8" Bellos, updates etc.
http://www.youtube.com/watch?v=RZCI0BTWKx8

Ducos
HX35

81
04-06-2011, 01:26 AM #11
(04-05-2011, 03:59 PM)babymog The stock setup uses an electric "auxiliary pump" which does a good job of pulling water/air through the head and heater core, pretty much self-purging with the heater on. Do you have this pump enabled?

No, the aux. Pump is still in my w124. I thought this was some kind of webasto sirculation pump, since the w124 had webasto Rolleyes thanks man! Do i just hook this up to the ignition, or? Shy
Ducos
04-06-2011, 01:26 AM #11

(04-05-2011, 03:59 PM)babymog The stock setup uses an electric "auxiliary pump" which does a good job of pulling water/air through the head and heater core, pretty much self-purging with the heater on. Do you have this pump enabled?

No, the aux. Pump is still in my w124. I thought this was some kind of webasto sirculation pump, since the w124 had webasto Rolleyes thanks man! Do i just hook this up to the ignition, or? Shy

aaa
GT2256V

913
04-06-2011, 02:51 AM #12
It probably is "webasto", if I'm guessing the meaning of that right. It does not hook to the ignition, it gets switched on and off by the automatic climate control. Course you can just hook it to the ignition anyways, not sure how long it'd last on full duty though.
aaa
04-06-2011, 02:51 AM #12

It probably is "webasto", if I'm guessing the meaning of that right. It does not hook to the ignition, it gets switched on and off by the automatic climate control. Course you can just hook it to the ignition anyways, not sure how long it'd last on full duty though.

babymog
K26-2

37
04-06-2011, 10:06 AM #13
On my recent install I just hot-wired the aux pump before starting the engine to get the fluid pumping. You might be able to do the same with your Wabasto circulation pump.

'87 300TDT "Pandora"
Garrett T-30 .55 @ 18.5psi, .970 IP @ 13.5ATDC turned up, #22 head with oblique injection, 4-puck brakes, 215 Michelins on 16x8" Bellos, updates etc.
http://www.youtube.com/watch?v=RZCI0BTWKx8
babymog
04-06-2011, 10:06 AM #13

On my recent install I just hot-wired the aux pump before starting the engine to get the fluid pumping. You might be able to do the same with your Wabasto circulation pump.


'87 300TDT "Pandora"
Garrett T-30 .55 @ 18.5psi, .970 IP @ 13.5ATDC turned up, #22 head with oblique injection, 4-puck brakes, 215 Michelins on 16x8" Bellos, updates etc.
http://www.youtube.com/watch?v=RZCI0BTWKx8

Ducos
HX35

81
04-06-2011, 04:23 PM #14
(04-06-2011, 10:06 AM)babymog On my recent install I just hot-wired the aux pump before starting the engine to get the fluid pumping. You might be able to do the same with your Wabasto circulation pump.

Hmm. My pump was dead(i think i killed it) hotwired it. Sneezed so + and - got together... Bought a random pump. But it was seriously small. Any idea how big the pump have to be?

EDIT: came across a post on another forum. It said the aux pump is under the water 'tank' ? Mine is infront of the battery(was)
This post was last modified: 04-06-2011, 04:35 PM by Ducos.
Ducos
04-06-2011, 04:23 PM #14

(04-06-2011, 10:06 AM)babymog On my recent install I just hot-wired the aux pump before starting the engine to get the fluid pumping. You might be able to do the same with your Wabasto circulation pump.

Hmm. My pump was dead(i think i killed it) hotwired it. Sneezed so + and - got together... Bought a random pump. But it was seriously small. Any idea how big the pump have to be?

EDIT: came across a post on another forum. It said the aux pump is under the water 'tank' ? Mine is infront of the battery(was)

 
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