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Re: 1951 Pontiac Chieftain

Posted: Fri Sep 13, 2019 12:34 am
by PhilA
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Bracket mostly complete. Requires one more bolt putting through on the rear alternator bracket and a couple nylocs.
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It tightens up straight and holds nicely.

Phil

Re: 1951 Pontiac Chieftain

Posted: Fri Sep 13, 2019 1:33 am
by Junkman
Yeah, but twelve Volts suck.

Re: 1951 Pontiac Chieftain

Posted: Fri Sep 13, 2019 1:49 am
by PhilA
Not for keeping the Watts up and the Amps down.

Re: 1951 Pontiac Chieftain

Posted: Fri Sep 13, 2019 1:55 am
by Junkman
I prefer André-Marie Ampère to James Watt any day of the week.
Watt. What a bloody phony.

Re: 1951 Pontiac Chieftain

Posted: Sat Sep 14, 2019 1:52 am
by PhilA
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Bolted all the bits on. Got the timing set well enough.

Alternator puts out, which is nice. At idle I went from 12.4V to 13.3, which went up to nearly 14V when revved. Belt doesn't squeal either.

Calling that success

Re: 1951 Pontiac Chieftain

Posted: Tue Sep 17, 2019 12:57 am
by PhilA
Ordered oil pump. NOS, ordered a modern front oil seal to put on because modern ATF.
Couple thrust washers because the clearance is kinda between the two. Can always pop it open on the next big service and then I'll have one to take up the slack.

Phil

Re: 1951 Pontiac Chieftain

Posted: Wed Sep 18, 2019 2:12 am
by PhilA
Question: Will a Pontiac straight eight run if the timing is 45 degrees advanced?

Answer: Yes
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Painted up the timing marks because someone had just thrown paint on in approximately the correct place on the pulley.



With the timing set to 6° BTDC it idles well and revs freely. Funny, that.

Phil

Re: 1951 Pontiac Chieftain

Posted: Thu Sep 19, 2019 10:24 pm
by PhilA
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Brand new, old stock 1951 Hydra-Matic front oil pump.

Mmmm.



Phil

Re: 1951 Pontiac Chieftain

Posted: Fri Sep 20, 2019 3:29 am
by PhilA
My initial suspicion was correct. A bearing wasn't sat fully. That beating? Oil pump. However, my method to attempt to remedy that was flawed, leading to busting the flange on the oil pump.

However, I think the flange wasn't straight anyhow looking at the way it sat in the case compared to the new one.

New pump gone in, factory spec- now with a 66 thou think spacing washer I have 35 thou of lash, so need to tighten that up about 30 thou.
Closest washer is 26 thou which would leave me at 11 thou lash which is within tolerance.

Ordering washer tomorrow

Phil

Re: 1951 Pontiac Chieftain

Posted: Sun Sep 22, 2019 2:18 am
by PhilA
Bought 2 gallons of 30 weight engine oil and 12 quarts of ATF.

Antifreeze notwithstanding (gonna run water to flush it through initially) that's the fluids done.

Phil