What is the proper order/orientation for the thermostat & gasket? From the engine, I put in the gasket, then thermostat, then housing. It leaked quite a bit and when I took it back off, the thermostat had cut through the gasket. The housing has a recess where it looks like the thermostat sits, so I don"t see how else it can go. Also, should I be using any permatex or silicone? Thanks.
- Thread starter Jeff IA
- Start date
as per what dean says.
if the recess has rust or debris in it.. scrape clean. clean both surfaces.
shouldn't need any sealer on the gasket.
if your mating surfaces are excessively rough and or pitted, go ahead and hit with a wire brush / sand paper to knock off anything loose and shine it up.. then use some permatex #2 on the gasket/flange and assemble and let cure up a bit before adding water.
same on the hose connections. go ahead and wire wheel the nips for the hose. many times they are excesively pitted. i've seen some pitted enough that wore a water line down the side that would not seal with a new hose and 2 clamps. in those cases you can repalce.. or go the buba way
and rub some rtv ( i like black ) on it.. less is better than more.. don't want it IN the cooling system. then slip that new hose onthere and clamp. should actually make it easier to put the hose on too.
post back if you hit a snag.
ps.. make sure your thermostat ain't warped from trying to install incorrectly..
if the recess has rust or debris in it.. scrape clean. clean both surfaces.
shouldn't need any sealer on the gasket.
if your mating surfaces are excessively rough and or pitted, go ahead and hit with a wire brush / sand paper to knock off anything loose and shine it up.. then use some permatex #2 on the gasket/flange and assemble and let cure up a bit before adding water.
same on the hose connections. go ahead and wire wheel the nips for the hose. many times they are excesively pitted. i've seen some pitted enough that wore a water line down the side that would not seal with a new hose and 2 clamps. in those cases you can repalce.. or go the buba way
and rub some rtv ( i like black ) on it.. less is better than more.. don't want it IN the cooling system. then slip that new hose onthere and clamp. should actually make it easier to put the hose on too.post back if you hit a snag.
ps.. make sure your thermostat ain't warped from trying to install incorrectly..
What Dean posted.
I have broke a few thermo housings early on in my career
It always was the most expensive and a replacement were days out.
I install the thermo in its grove (head/intake are housing) then glue (3M 8001 contact cement) the gasket to the head/intake are housing to retain ( trap it) the thermo (you can use a few bolts to line up the gasket) Then apply a little RTV to the other side of the gasket. (yes its acceptable to apply sealer here)
The RTV will help seal plus if you ever have to remove it the gasket will not be married to the part it seals again.
If you break a housing you need to ask why and not re-pete what you just did again. If you have a leaking hose you best ask your self why, RTV used to seal a hose connection is not the answer in my opinion unless theirs no other option. Applying RTV to a hose connection will come back and bite you weigh out the options live with the circumstances your call.
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