LIM corrosion/pitting

**BillBoost37** · 08-13-2012

Here's your answer.

http://www.grandprixforums.net/lim-g...ign-39522.html

Difference in the 96/97 blocks vs 98+

**vertebrate** · 08-13-2012

Thanks for the help everyone. I got everything back together, and aside from some cooling issues due to what seems to be a non-opening thermostat, everything is looking good.

**BillBoost37** · 08-13-2012

You might have an air bubble. Once in a while you get a car taht doesn't want to burp out the air. Pull the t stat and fill the LIM through the stat hole..put it back together and likely you'll be all set.

**vertebrate** · 08-13-2012

yeah, I took the tstat out last night, and found that the lim coolant was about an 1-1.5" below the top of the coolant opening. I left the tstat out, filled it up, started the car, bled it and temp never got much above 185*. I filled the lim before I put everything back together the first time to help with getting the air out as well.

I'm going to throw the tstat in a pot of water and see if it opens.

**matt5112** · 08-13-2012

Originally Posted by Fivefingerdeathpunch

It seems that some coolants over time eat away at the aluminum.

A guy on here had the 2 coolant ports on his blower and on the LIM have pitting. Not to say its common, but it does happen.

Yeah, this guy.

Hence looking into coolant and finding no answers.

Dex doesn't provide any anti corrosion protection for the first 5-10 000 miles from what I've gathered.

Try G-05 that can be found at Napa, less expensive than Dex around here yet instant protection.

**vertebrate** · 08-14-2012

I got the tstat in a pot and it turns out that it doesn't open until 210. Stock should open around 190, correct? Given how hot it is here I'm thinking of getting a 180. There shouldn't be any problem with that should there?