What did you do to your G-Body today? [2011-2018]

[TURNA]

Been on and off so many times maybe it cracked?

Do you have a cast iron one??

 

[MrSony]

are you sure it's the thermostat housing gasket that is leaking?

The only things in that area are the gasket, hose, and bypass hose. Today I have replaced the gasket now for the 3rd time, with the steel hosing, new bypass hose, new radiator hose (since the last time), and a new thermostat. Driving around ALL day the thing was dry. Sits overnight, puddle. I think the pressure that's building up in the system was making it seep out the gasket and/or the bypass hose onto that little shelf on the intake below the thermostat hole when the car is shut off and the coolant is just sitting there under pressure.
I'm using the steel housing because it NEVER leaked on my old motor. I've never had this much trouble with a thermostat housing in my life. The steel housing has a little ridge on it, and I think that may help with sealing the gasket. They went away from the cast aluminum piece in the early 70s, around 73 if I remember right, and they did so for a reason. They didn't do it just for sh*ts n giggles.
The housing and gasket and RTV is currently curing outside with a halogen light aimed at it. It gets pretty toasty, so I'm going to let that sit for an hour or two before I put any coolant to it. Let it get upto temp, then let it sit until it cools off. Do it again, and if no leaks, I'll say it's good enough for a test drive.

Apologies for filling this thread with nonsense, but it is what I'm doing to my G Body today.

 

[pontiacgp]

Been running them at 35psi. 30 psi and they would seem to squat, if that's the word for it. 235/60s on 15x7.

I wouldn't use more than a 225 on a 7" rim, if you check the sites they recomend 205 to 215 with 225 the max for a 7" rim

 

[pontiacgp]

Apologies for filling this thread with nonsense, but it is what I'm doing to my G Body today.

apology accepted for today but what about all the other days?...

 

[MrSony]

I wouldn't use more than a 225 on a 7" rim, if you check the sites they recomend 205 to 215 with 225 the max for a 7" rim

Cooper's site says the 235 can be used on a 6.5-8.5 rim.

 

[TURNA]

The only things in that area are the gasket, hose, and bypass hose. Today I have replaced the gasket now for the 3rd time, with the steel hosing, new bypass hose, new radiator hose (since the last time), and a new thermostat. Driving around ALL day the thing was dry. Sits overnight, puddle. I think the pressure that's building up in the system was making it seep out the gasket and/or the bypass hose onto that little shelf on the intake below the thermostat hole when the car is shut off and the coolant is just sitting there under pressure.
I'm using the steel housing because it NEVER leaked on my old motor. I've never had this much trouble with a thermostat housing in my life. The steel housing has a little ridge on it, and I think that may help with sealing the gasket. They went away from the cast aluminum piece in the early 70s, around 73 if I remember right, and they did so for a reason. They didn't do it just for sh*ts n giggles.
The housing and gasket and RTV is currently curing outside with a halogen light aimed at it. It gets pretty toasty, so I'm going to let that sit for an hour or two before I put any coolant to it. Let it get upto temp, then let it sit until it cools off. Do it again, and if no leaks, I'll say it's good enough for a test drive.

Apologies for filling this thread with nonsense, but it is what I'm doing to my G Body today.

That aluminum one is a wreck!!!! scrap pile it!!

 

[pontiacgp]

The only things in that area are the gasket, hose, and bypass hose. Today I have replaced the gasket now for the 3rd time, with the steel hosing, new bypass hose, new radiator hose (since the last time), and a new thermostat. Driving around ALL day the thing was dry. Sits overnight, puddle. I think the pressure that's building up in the system was making it seep out the gasket and/or the bypass hose onto that little shelf on the intake below the thermostat hole when the car is shut off and the coolant is just sitting there under pressure.
I'm using the steel housing because it NEVER leaked on my old motor. I've never had this much trouble with a thermostat housing in my life. The steel housing has a little ridge on it, and I think that may help with sealing the gasket. They went away from the cast aluminum piece in the early 70s, around 73 if I remember right, and they did so for a reason. They didn't do it just for sh*ts n giggles.
The housing and gasket and RTV is currently curing outside with a halogen light aimed at it. It gets pretty toasty, so I'm going to let that sit for an hour or two before I put any coolant to it. Let it get upto temp, then let it sit until it cools off. Do it again, and if no leaks, I'll say it's good enough for a test drive.

Apologies for filling this thread with nonsense, but it is what I'm doing to my G Body today.

It is hard to tell by the pictures of the intake but there doesn't seem to be a recess where the thermostat sits. If they are no recess in the intake or the cap that would be your problem

 

[pontiacgp]

Cooper's site says the 235 can be used on a 6.5-8.5 rim.

it seems like cooper is the only one, but then they are interested in selling tires.

 

[ssn696]

FINALLY. Today I earned the right to make an entry after a long time spent keeping up with, well, life.

I removed a sweep cluster from my 1980 Malibu. I will write up a post to make this useful for others. Note that this is an OEM manual car, so it has the shift quadrant blockoff plate. I will eventually make a pattern so others can make a retrofit part.



I like the latest Forum software. I find that the uploading and editing is simpler than it used to be. Thanks, Chris!

 

[MrSony]

It is hard to tell by the pictures of the intake but there doesn't seem to be a recess where the thermostat sits. If they are no recess in the intake or the cap that would be your problem

there is indeed a recess. Yeah, it's hard to tell, but it's there.