Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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Originally Posted by Part16john
Thanks for the info, Stovbolt!

When you say you felt for number 1 TDC, do you mean you felt for compression with your thumb over the hole? YES, manually cranked and found 1 with my thumb over number one plug.

good blurb to read, this is when i did my 1929 : https://vccachat.org/ubbthreads.php/topics/281335/
getting the distributor set right and fully seated with cylinder 1 at top dead center under compression is key to timing.


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Shade Tree Mechanic
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Great info, thanks so much bearsfan!

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Hey there Part16john

It suddenly occurred to me last night as I was falling asleep that I posted something really ambiguous (or down right wrong) above.

When I said it's easy to be 180 degrees out when installing and timing the distributor...
that's 180 degrees of the DISTRIBUTOR,
which is of course 1 full turn or 360 degrees of the CRANKSHAFT.

Sorry if that caused any confusion, and hope you got it started!


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Finally got the car back running this evening. I retimed the distributor by watching valves and watching where the rotor was pointing when 1 was ready to fire, both valves closed and compression stroke. While idling and putting a timing light on the flywheel the timing was jumping around. Can someone verify that my distributor is seated properly? Good news I got oil pressure when running. Thinking maybe the screw spring may not be tight enough? I did add a thrust washer per instructions on replacing pump but did not have one when I took the old pump out. I plan on tackling this timing jumping but didn’t have time tonight.

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Last edited by Part16john; 12/28/22 01:18 AM.
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are you using a 6v timing light ? and solid source of power, as well as have the pick up close to the spark plug and facing the correct direction. I know the one i have is 6v and if it the pick up gets close to another plug wire it will pick that one up as well and make the light/mark JUMP around.

I pull plug wire for plug 1 out of hte loops, and ten put my pickup a few inches form plug 1, then use some string or zip ties to hold the pick and wire out and away from the rest of the wires. i pull the wire up and over the radiator support bars and tie them near the radiator. keep them from moving. I have also at times used my 12v mower battery for power on the timing light for a clear sharp light. and can run a ground from car frame to mower battery if needed.


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Bearsfan that was it, I needed to make sure the clip was on correctly and not near the 2 wire. Looking back at my video it wasn’t in the correct position.

Oil pressure was at 12 once car was warmed up just above normal on the gauge.

Video of engine running:

https://photos.app.goo.gl/L9q3ukBbQ7T8GFQR7

Thanks to all for the help to get her running again!!

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That is great, glad it was something simple :)

sounds good, just need to tweak it and slow it down a bit on idle. typically around 300rpm or so, i am happy with 450rpm or less for idle.

i use my old school dwell meter to validate (does volts, dwell, and rpm)


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