Thermostat housing problems

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Jan 17, 2009 | 07:56 PM

#16

johnh

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From: lyman, utah

take it to a mechanic

Jan 17, 2009 | 08:00 PM

#17

bootsdodgejn

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From: jarretsville.

OK so i was just looking at the service manual thanks to a member at another site. I guess u are right. Since thats the only seal why do you think that its leaking still

Jan 17, 2009 | 08:01 PM

#18

bootsdodgejn

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From: jarretsville.

Quote:

Originally Posted by johnh

take it to a mechanic

Would u like to pay.

I think its just the seal. Im proboly goin to go to the cummins dealer and get the right one.

Jan 17, 2009 | 08:26 PM

#19

wannadiesel

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From: New Holland, PA

Did you put the seal in facing the correct direction? The flat end of the seal goes against the head.

https://www.dieseltruckresource.com/...d.php?t=146039

Jan 17, 2009 | 08:45 PM

#20

bootsdodgejn

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From: jarretsville.

yea well its got a lil **** in it so it can slip over the thermostat.

Jan 17, 2009 | 08:52 PM

#21

bootsdodgejn

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From: jarretsville.

oops sry my bad

Jan 17, 2009 | 08:54 PM

#22

bootsdodgejn

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From: jarretsville.

Its actually a seal SRY my bad.

Jan 18, 2009 | 09:07 AM

#23

dozer12216

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From: North Carolina or Kentucky. Take your pick

While at Cummins dealer, get a theromstat also. Good chance the aftermarket thermostat is adding to your frustration. Besides many of us have had nightmares with aftermarket stats. JMHO of course.

Jan 18, 2009 | 09:39 AM

#24

bootsdodgejn

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From: jarretsville.

Yea thats what im going to do.

Jan 18, 2009 | 12:27 PM

#25

infidel

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From: Montana

I've replaced dozens of stats without problem, just the large o-ring seals it.
Never any silicone goop or paper gaskets.
Perhaps you overtightened it and are ruining the o-rings or bent the housing.