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1951 Pontiac Chieftain


PhilA

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  • PhilA changed the title to 1951 Pontiac Chieftain - Off The Road Again

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Dropped the oil tonight. Looks pretty reasonable still, which is good. Flushing it won't hurt though.

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Side pan off. Access could be better... It was easier on the bench. Have worked in worse spaces though.

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Pipework removed, but not without a fight. Reverse lockout pawl is sitting on top of a tooth. I need to see if it'll rotate with the slack in the rear axle to sit in a gap for reassembly.

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New governor, old governor and valve block. The old governor appears to be a hybrid of new weights and old body. The new one is all the later variant. It's not moving freely, that'll be the issue.

I'm going to pull the valve block apart to make sure it's clean inside then throw it all back together again.

 

Phil

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I took the valve block apart last night. That's the end cap of the main valve set and the pistons are meant to fall into their bores under their own weight. That wasn't happening. They're fairly scored from years of use, the manual says not to use abrasives but there were a few burrs that were preventing correct operation so I carefully removed those. Those now move smoothly.

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The finish on them is still pretty good considering their age. 

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The main valves were dirty and again lightly scored, so they recieved the same treatment.

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They move freely now without sticking so that's gone back together and is ready for reassembly.

Phil

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This afternoon, we had 3" of rain in 30 minutes. Just a small storm, then.

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During this, I got the new governor in, the fluid sleeve centered on the governor, valve block in and the reverse lockout stop set to the prerequisite 1/2".

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Torqued everything down as per the book and put the lid back on.

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Pulled the carb off and installed the heat shield.

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Got it all back together and awaiting transmission fluid.

 

Phil

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Filled it up and went for a drive. It mostly behaves like in the video but occasionally not, and it did something that caught the old brain cells- going into reverse the parking pawl engaged. That would only happen when there's no oil pressure, so I'm going to pull the pressure regulator out and see if it's sticking.

 

Phil

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3 minutes ago, PhilA said:

Rewired the car to accept the more modern (and cheap) 2 pin blinker relay.

Stole the one from the Renault and now I have working turn signals, albeit with the new TIK TAK TIK TAK noise this one makes (electronic).

Phil

I hope while your where rewiring it you also made it so when you put the hazards on the little light-up chief also flashes accordingly :mrgreen:

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13 minutes ago, somewhatfoolish said:

What was the the old system and what noise did it make?

It was the horrifically complicated type that has the litz wire heater, two sets of points, a big coil, lots of junk inside and it went plik-toink.

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Very similar to the type found on Morris Minors and the like.

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  • PhilA changed the title to 1951 Pontiac Chieftain - Back in gear
31 minutes ago, PhilA said:

Plik toink is available in 2 pin flavor.

Ideally I need the bimetallic type that do long on/short off for the proper look. 

This one does a very even on/off.

This requires a Uutoob pepsi test. Onomatopoeiaically I'm leaning toward Plik toink.

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