Thermostat O-ring Leak...FIXED
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Thermostat O-ring Leak...FIXED
I mentioned this in another thread, but it's buried a few pages in so I'm not sure it will get any attention. Anyhow, after installing a new thermostat and o-ring I discovered that I have a significant leak from between the housing and the outlet as if there is not o-ring installed. I put in the thermostat, spring side down, and then the o-ring so I'm pretty sure that is correct. I'm wondering if I got the wrong o-ring now, the diameter is correct, but I'm wondering how thick the o-ring is supposed to be. If I have a chance after work this evening I'll take a picture of the new o-ring.
#2
o-ring leak
Just changed my thermostat last weekend on my 01 v-10 it was leaking after install also. looked as though the housing was leaking past the o-ring but pressed on the hose and it was coming by the clamp. my hose was not that old it has the pinch type clamp on the hose. i had the clamp clamped in a different position than before moved it to where it originally was and leak stopped.just my 2cents worth.
#3
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Just changed my thermostat last weekend on my 01 v-10 it was leaking after install also. looked as though the housing was leaking past the o-ring but pressed on the hose and it was coming by the clamp. my hose was not that old it has the pinch type clamp on the hose. i had the clamp clamped in a different position than before moved it to where it originally was and leak stopped.just my 2cents worth.
I stopped by NAPA on the way home and picked up another o-ring to compare to the one I picked up at O'Reilly and they were exactly the same. If I have time tomorrow evening I guess I"ll try it again and see what happens.
UPDATE:
Put the o-ring from NAPA in and tried it again...no leaks! I don't know what was wrong before. Well now to find out what is causing the miss.
#6
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Leak is Back Again!
I put the new coolant in last weekend after doing a full flush and everything seemed great after letting it get up to temperature and making sure the thermostat opened. I fired it up again this weekend to charge up the battery before doing some electrical work (have to smog and renew registration it before I can drive it again) and smelled coolant. The thermostat housing was leaking again! I've tried two different o-rings and this thing keeps leaking on me. The mating surfaces are clean and I don't see any cracks or pitting. Anyone have any idea why this is happing? I'm tempted to buy one of these see if it helps. I just want my truck running good and back on the road where it belongs!
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#9
Join Date: Jul 2010
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I was thinking the same thing. I just put the thermostat back in real quick after I finished the flush without removing the hose again. On the last attempt I took the hose off so it wouldn't twist it, then put the hose back on.
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