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Re: 1951 Pontiac Chieftain

Posted: Sun Oct 27, 2019 12:29 am
by PhilA
No, the gasket was in good shape so went back on.
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Also had a go at leveling out the manifold. Looks like it will need to be milled flat, it does have a significant warp.
However, for now I should be able just to double gasket it and get it to seal.

Phil

Re: 1951 Pontiac Chieftain

Posted: Sun Oct 27, 2019 8:35 pm
by PhilA
The reason why I say I'm thinking it's the valves because I had taped up all the ports with duct tape- #8 exhaust had coolant leak in from the bolt that should be a stud and filled the port up; packed up another one had filled up with condensate so that's my rationale.

I'll clean it all up and hopefully it should be good.

Phil

Re: 1951 Pontiac Chieftain

Posted: Sun Oct 27, 2019 9:30 pm
by fried onions
I re-use a OHV head gasket no problem. As long as it's in good condition. A side valve is pretty agricultural, I'd wager this is around 6.5:1 CR? Coat the valve stems in lubricant before fitting.

Re: 1951 Pontiac Chieftain

Posted: Sun Oct 27, 2019 10:54 pm
by PhilA
Yeah, 6.4:1 and hardly hi-po but once the valve gets a little warm it sticks then it warms up more and unsticks

Big copper and asbestos gasket- good for a few reapplications, it didn't leak this time round, the coolant even held pressure.

Phil

Re: 1951 Pontiac Chieftain

Posted: Mon Oct 28, 2019 1:24 am
by PhilA
Yup, #8 exhaust is sticking open.

Off with her head! (Tomorrow).


Phil

Re: 1951 Pontiac Chieftain

Posted: Sat Nov 02, 2019 10:25 pm
by PhilA
I think I may have managed to sort most of this out from up underneath.
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Little bit of adjustment and a bit of a tune up and it's running better. New gaskets will help significantly, and hopefully new ignition components too.

Phil

Re: 1951 Pontiac Chieftain

Posted: Sat Nov 02, 2019 11:40 pm
by Nibblet
That's a thing of beauty, pull up a chair, crack open a beer and watch the show.

Re: 1951 Pontiac Chieftain

Posted: Sun Nov 03, 2019 12:50 am
by Junkman
But PhilA rather burns alcohol than drinking it.

Good Lord.

Re: 1951 Pontiac Chieftain

Posted: Sun Nov 03, 2019 8:11 pm
by Nibblet
Good to see Grumpman back and firing on all 8.

Re: 1951 Pontiac Chieftain

Posted: Sun Nov 03, 2019 8:13 pm
by Junkman
Wait until I go into grumpy mode.