1951 Pontiac Chieftain

Eddie Honda · Post by **Eddie Honda** » Tue Apr 12, 2022 2:30 am

PhilA wrote: ↑Mon Apr 11, 2022 11:55 pm Taking a break from it because suddenly it hammered down with rain and got so windy the hood lifted up off the prop. I'm glad I caught it.

We are all glad you caught it.

PhilA · Post by **PhilA** » Wed Apr 13, 2022 3:50 am

Went ahead and gave the car a shakedown run. A touch too much timing, it was running hot and feeling strained at 45. Backed it off a couple degrees and tried again. Much better. Now has a thrum at 2000 RPM, pops and burbles on overrun and will hold about 17"Hg on the flat at 45-50 mph.
Feels like it wants to go, has torque until next Tuesday and no longer hesitates and doesn't smell of fuel. Exhaust note has a significant bass edge to it now, which it really didn't have before.

You know you're getting close to everything being just right when a couple degrees of ignition transform the engine.

Much better.

Drum · Post by **Drum** » Wed Apr 13, 2022 7:27 am

Sounds great.

17 inches of mercury? Where are you measuring the pressure? Excuse my ignorance.

PhilA · Post by **PhilA** » Wed Apr 13, 2022 12:36 pm

Drum wrote: ↑Wed Apr 13, 2022 7:27 am Sounds great.

17 inches of mercury? Where are you measuring the pressure? Excuse my ignorance.

At the manifold, wiper motor takeoff. Same kind of reading you'd get at the brake booster takeoff (if it had one).

Aka manifold average pressure.

Phil

PhilA · Post by **PhilA** » Sat Apr 16, 2022 10:44 pm

New coil and condenser today. Old coil crapped out on the way to go buy a hat.

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All the plugs are a nice sienna, regapped them 32 thou'.

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Cleaned and gapped the points, 16 thou'.

Test drive successful, smooth running now.

Phil

PhilA · Post by **PhilA** » Sun Apr 17, 2022 1:17 am

Crap. The Renault is 32 thou', Pontiac 25.

I'll redo the plugs tomorrow

Post by **Hooli** » Sun Apr 17, 2022 6:31 am

I was going to say, everything I've ever had with points was 25 thou on the plugs.

PhilA · Post by **PhilA** » Sun Apr 17, 2022 10:11 am

Hooli wrote: ↑Sun Apr 17, 2022 6:31 am I was going to say, everything I've ever had with points was 25 thou on the plugs.

I got them mixed up in my head. Gapping then again is easy if not time-consuming. The only thing that would suffer would be the points with the additional arc from it so that can get adjusted out.

Phil

PhilA · Post by **PhilA** » Mon Apr 18, 2022 4:39 am

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Out and about today. Brought the kids to the park to go rollerskate.
Fun break from everything. Nice to be on the road again.

mercrocker · Post by **mercrocker** » Mon Apr 18, 2022 9:59 am

Amazing how restorative a blue-sky drive in a nice old car can be.....

1951 Pontiac Chieftain

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