Michael--
You might want to check the cam timing, it's
possible the gear stripped and jumped time.
You DID readjust the valves after installing the
head, didn't you?
Jim F
59s in AZ
> Date: Mon, 5 Feb 2001 06:53:13 -0600
> From: "Michael Lubitz" <mlrba@texas.net>
> Subject: [oletrucks] My head, oh my aching head
>
> Guys,
>
> I need help. A while back I was having a problem with hard starting, etc.
> with the 216 in the '46. It was diagnosed by the group as many things:
> carburetor icing, low compression, etc. So I rebuilt the carb, and the fuel
> pump, and fixed the heat riser. No luck.
>
> Checked compression: Dry: 98, 90, 95, 45, 95, 90. Uh oh, number 4 is real
> low. So we did a wet test on number 4 and the compression did not change.
> O.K., need to do a valve job. When we took the head off, it was obvious that
> the exhaust for number 4 was burned - badly burned.
>
> Now I asked you guys again about hardened seats, valve guides, doing all of
> the valves or just doing number 4, etc. Again, good advice - go the whole
> way.
>
> I did. $400 worth of new valves, seats, guides, lapping, surfacing, etc. The
> head looked beautiful. We then put it all back together with new paint and
> cleaning everything in sight and torqueing the head bolts to 85 pounds and you
> name it, we did it. Clean and nice.
>
> We went to start the beast yesterday and Buddy (the truck's name) had the same
> problem as we had at first - hard starting and he would not stay running.
> Good fuel, good spark, adjusted the valves loose (Did the preliminary valve
> adjustment with the deaf man from across the street who used to work on old
> Chevies. He is probably 70 now. It was fun!)
>
> So we checked compression again. Dry: 50, 75, 55, 50, 50, 55. Yikes.
> Somewhat depressed, we did a wet test on number 4 and it did not change a
> bit.
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