STD Maintenance General Thermostat stuck open, possibly?

Thermostat stuck open, possibly?

Thermostat stuck open, possibly?

 
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MFSuper90
Budget Builder

1,533
10-25-2011, 10:45 AM #1
I believe i read on here the om617's tstat opens at around 90c, and my car has only gotten to 90 once or twice.
And that was on like a 100F day

Is it possible that my tstat is stuck open? I dont mind it in the summer, but now thats it in the mid 50s and 60s it never even sees 80c.

Any ideas would be helpful,
thanks in advance,
Eric

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
10-25-2011, 10:45 AM #1

I believe i read on here the om617's tstat opens at around 90c, and my car has only gotten to 90 once or twice.
And that was on like a 100F day

Is it possible that my tstat is stuck open? I dont mind it in the summer, but now thats it in the mid 50s and 60s it never even sees 80c.

Any ideas would be helpful,
thanks in advance,
Eric


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

MFSuper90
Budget Builder

1,533
10-27-2011, 07:52 PM #2
Any ideas from anyone?

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
10-27-2011, 07:52 PM #2

Any ideas from anyone?


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

willbhere4u
Six in a row make her go!

2,507
10-27-2011, 08:03 PM #3
It could be stuck open or just missing because of a previous repair?

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
10-27-2011, 08:03 PM #3

It could be stuck open or just missing because of a previous repair?


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

MFSuper90
Budget Builder

1,533
10-27-2011, 08:05 PM #4
(10-27-2011, 08:03 PM)willbhere4u It could be stuck open or just missing because of a previous repair?

Where is it at? Ill have to check and see if its still there. We did an engine swap in my car and who knows what the guy before me did to the tstat haha

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
10-27-2011, 08:05 PM #4

(10-27-2011, 08:03 PM)willbhere4u It could be stuck open or just missing because of a previous repair?

Where is it at? Ill have to check and see if its still there. We did an engine swap in my car and who knows what the guy before me did to the tstat haha


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

willbhere4u
Six in a row make her go!

2,507
10-27-2011, 08:44 PM #5
It's in that weird aluminum deal on the passenger side front of the engine that connects to the radiator hose with 3 10mm bolts
Attached Files
Image(s)
   

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
10-27-2011, 08:44 PM #5

It's in that weird aluminum deal on the passenger side front of the engine that connects to the radiator hose with 3 10mm bolts

Attached Files
Image(s)
   

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

MFSuper90
Budget Builder

1,533
10-28-2011, 09:10 AM #6
(10-27-2011, 08:44 PM)willbhere4u It's in that weird aluminum deal on the passenger side front of the engine that connects to the radiator hose with 3 10mm bolts

Hmmm. ill definitly have to check that out. It sucks when its like 30 degrees out and the engine wont hardly get above 50 degrees celcius.
Ill look at it tonight and let you know what i find

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
10-28-2011, 09:10 AM #6

(10-27-2011, 08:44 PM)willbhere4u It's in that weird aluminum deal on the passenger side front of the engine that connects to the radiator hose with 3 10mm bolts

Hmmm. ill definitly have to check that out. It sucks when its like 30 degrees out and the engine wont hardly get above 50 degrees celcius.
Ill look at it tonight and let you know what i find


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

willbhere4u
Six in a row make her go!

2,507
10-28-2011, 09:21 AM #7
good luck! make sure you use or make a gasket!

Don't use RTV silicone it breaks off over time and will clog up the rest of the cooling system

I asked at NAPA for a gasket and they told me it used an O ring when I took it apart it didn't! so at 9:00pm they where closed and I was screwed! I lucked out and found a roll of gasket material in my shop and made my own gasket and it' still working
This post was last modified: 10-28-2011, 09:27 AM by willbhere4u.

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
10-28-2011, 09:21 AM #7

good luck! make sure you use or make a gasket!

Don't use RTV silicone it breaks off over time and will clog up the rest of the cooling system

I asked at NAPA for a gasket and they told me it used an O ring when I took it apart it didn't! so at 9:00pm they where closed and I was screwed! I lucked out and found a roll of gasket material in my shop and made my own gasket and it' still working


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

MFSuper90
Budget Builder

1,533
10-29-2011, 08:25 AM #8
(10-28-2011, 09:21 AM)willbhere4u good luck! make sure you use or make a gasket!

Don't use RTV silicone it breaks off over time and will clog up the rest of the cooling system

I asked at NAPA for a gasket and they told me it used an O ring when I took it apart it didn't! so at 9:00pm they where closed and I was screwed! I lucked out and found a roll of gasket material in my shop and made my own gasket and it' still working

Is the tstat the part connected to the neck? because that what i saw that was held on with three 10mm bolts.

If so, in that pic, mine doesnt have that round thing stickin up out of it. where it looks like that thing would screw in its just an empty pit.

hmmm Huh

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
10-29-2011, 08:25 AM #8

(10-28-2011, 09:21 AM)willbhere4u good luck! make sure you use or make a gasket!

Don't use RTV silicone it breaks off over time and will clog up the rest of the cooling system

I asked at NAPA for a gasket and they told me it used an O ring when I took it apart it didn't! so at 9:00pm they where closed and I was screwed! I lucked out and found a roll of gasket material in my shop and made my own gasket and it' still working

Is the tstat the part connected to the neck? because that what i saw that was held on with three 10mm bolts.

If so, in that pic, mine doesnt have that round thing stickin up out of it. where it looks like that thing would screw in its just an empty pit.

hmmm Huh


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

willbhere4u
Six in a row make her go!

2,507
10-29-2011, 10:55 AM #9
The T stat should be behind the neck here's a better picture
This post was last modified: 10-29-2011, 10:55 AM by willbhere4u.
Attached Files
Image(s)
   

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
10-29-2011, 10:55 AM #9

The T stat should be behind the neck here's a better picture

Attached Files
Image(s)
   

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

DeliveryValve
Superturbo

1,338
10-29-2011, 07:44 PM #10
(10-28-2011, 09:21 AM)willbhere4u ...
I asked at NAPA for a gasket and they told me it used an O ring when I took it apart it didn't! so at 9:00pm they where closed and I was screwed! I lucked out and found a roll of gasket material in my shop and made my own gasket and it' still working

Really?

The gasket should look like this.

Attached Files
Image(s)
   

Gota love Mercedes Diesels!



.
DeliveryValve
10-29-2011, 07:44 PM #10

(10-28-2011, 09:21 AM)willbhere4u ...
I asked at NAPA for a gasket and they told me it used an O ring when I took it apart it didn't! so at 9:00pm they where closed and I was screwed! I lucked out and found a roll of gasket material in my shop and made my own gasket and it' still working

Really?

The gasket should look like this.

Attached Files
Image(s)
   

Gota love Mercedes Diesels!



.

willbhere4u
Six in a row make her go!

2,507
10-29-2011, 10:02 PM #11
They gave me a large O ring which wasn't even close to working

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
10-29-2011, 10:02 PM #11

They gave me a large O ring which wasn't even close to working


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

MFSuper90
Budget Builder

1,533
10-30-2011, 07:47 AM #12
Ahhh, now it makes more sense to me with that diagram.

Maybe ill just rob the tstat off my junker benz Sleepy

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
10-30-2011, 07:47 AM #12

Ahhh, now it makes more sense to me with that diagram.

Maybe ill just rob the tstat off my junker benz Sleepy


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

MFSuper90
Budget Builder

1,533
11-05-2011, 07:12 AM #13
I put a new thermostat on it yesterday and....
wha la!
works likes brand new.

thanks for the help guys,

Eric

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
11-05-2011, 07:12 AM #13

I put a new thermostat on it yesterday and....
wha la!
works likes brand new.

thanks for the help guys,

Eric


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

 
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