allmotor1

just noticed my front coolant cross over on the passenger side has a small leak. im guessing its a gasket or an o ring? any body had an issue like this ever and possibly part numbers?

conan

iTrader: (5)

Order 2 of these, replace both sides.

http://www.texas-speed.com/p-2268-gm...lant-seal.aspx

allmotor1

thanks. does this matter if it goes on an ls1 or an ls3?

allmotor1

anyone know if its the same on ls1 and ls3?

conan

iTrader: (5)

All the coolant steam pipes and plugs I have seen have been universal to all the LS engines.

allmotor1

is it common for these to leak. alittle coolant is sitting where my head bolt is should i be concerned?

conan

iTrader: (5)

Anything can happen. I don't think it's very common, but any gasket will eventually leak. I would replace and keep an eye on it see what happens.

allmotor1

I ordered a set that has 4 from the store. I dont have an ls1 crossover. I havent taken it off so i dont know if theres a gasket on it but i heard the other ls cross overs only use an o ring?

allmotor1

put a new one on today and sure as hell its still leaking. im pissed it just kinda bubble out. i itghtened it more and it came through the area were the bolt is. my speculation is 2 things. i did not use and sealant or anything. my next step is tomorow to put some high temp rtv on the bolt and around the gasket and see what happends then. the other speculation i have is the bolt on the side thats not leaking has a long tip on the top. it also looks a little longer then the by the one thats leaking. Any inputs?

allmotor1

Update: it turns out i had the wrong sized bolt on one side and it caused it to not seal properly. would have never guessed it!

conan

iTrader: (5)

Good to hear you got her figured out.

allmotor1

thanks. its crazy, what i did was i switched the bolt from the side that wasent leaking to the side that was and it reversed! the side that wasent leaking started to and the side that was leaking dident. look at the two bolts and the good bolt was longer than the bad one and the treads that were catching on the bad one were messed up. so i found out the bolt size is m6 1.0 30mm so i went to ace and they had the bolt and it fixed it.