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Old 05-18-2020, 12:47 PM   #1
hudson1948
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Default 1934 V8 slipped timing gear

Has anyone ever seen one of these press on gears slip. Was on a road test running great no problems. All of a sudden it lost all its power. 75lb of compression accross the board and 14 inches of vacuum at idle. Freshly rebuilt has about 30 miles on it.
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Old 05-18-2020, 02:31 PM   #2
petehoovie
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Default Re: 1934 V8 slipped timing gear

Still runs but a loss of power???
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Old 05-18-2020, 02:35 PM   #3
Brian
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Default Re: 1934 V8 slipped timing gear

Yes, I once encountered that....now on all my builds I 'scotch key' the gear in place to prevent it happening. To fit a scotch key, drill and tap a hole somewhere around the seam where the two components fit, and screw in a grubscrew.
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Old 05-18-2020, 04:49 PM   #4
G.M.
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Default Re: 1934 V8 slipped timing gear

When I was 16 I had a 34 with a low mileage stock engine strip the
fiber teeth of the timing gear. I had to remove the grill and radiator
and chisel the aluminum hub off the front of the cam. If I remember
the cam had a slight knurl that had a slight twist in the knurl so the
new gear twisted about a 1/4" as it went on. I was lucky and got the
timing marks lined up and it ran good. This was a sedan with 6,000
miles that was put up on jack stands during world war II. I never
liked sedans and sold it. G.M.
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Old 05-19-2020, 07:32 AM   #5
nickthebandit
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Default Re: 1934 V8 slipped timing gear

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In my area we call a Scotch key a Dutchman.
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