92CamaroReallySlow

I just installed a new 160* thermostat on my LS1, brand new seal and brand new housing, and I filled everything up and all of a sudden there is a small leak out of the housing. Im like WTF, you not supposed to put on any RTV or anything that I know of and everything is brand new so why the hell is it leaking? I drained everything again , and about ready to take the thermostat off again. Any ideas?

Z28LS1camaroguy

iTrader: (3)

did you tighten the bolts down to specs??? or maybe pinched the gasket alittle somehow.

2001NBMZ28

I put a little plumbers grease on it when I did mine for the hell of it?????

highgear

I always use gasket sealer (Hylomar)on thermostats, water pumps, etc.

92CamaroReallySlow

DING DING DING!!! I took it off and the seal got pinched a little and tore it a little bit. Now I have to wait until saturday to get it (ordered 3 just in case). Still is probably salvageable but who knows. So is it ok to put some sort of sealant or something on there? Might help keep it in place, but the haynes manual says not to put anything on there I dont think. I mean its just an oring.

Z28LS1camaroguy

iTrader: (3)

actually they want you to use RTV gasket stuff in the groove where the O-Ring goes to keep it in place and make a better seal. check installuniversity.com they have a writeup on it.

92CamaroReallySlow

Yea I believe that some RTV would do good, I mean its not a head gasket or anything. Ill try it, Im sure it wont do any harm.