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Joined: Jan 2015
Posts: 31
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2015
Posts: 31 |
i have put new camshaft gear on it is not marked it has 54 teeth.the crank has a dot on no3 teeth.i have lined camshaft to dot between no 12 and 13 teeth with timing ball lined up is this correct for valve timing. it s a 1935 chevrolet 207
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
The placement of the timing and cam gear marking is in relation to each other and has no correlation with any other marks on the engine. Once the cam and timing gears are mated you move on to the next step which is the adjustment of the valves and then the flywheel ball and the pointer.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Sorry I don't have an engine that I can check to see which teeth on the cam and crank gears align. My gut tells me that you are likely right but it also says if you are one tooth off the engine will not run correctly. Hopefully someone that has NOS gears can count the teeth to the correct mark. Or gears on a running engine.
FYI, The 1928 Service News has a short blurb on checking the cam/crank gear alignment because there were mis-marked gears available in that time.
How Sweet the roar of a Chevy four!
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The crank gear has a "dot" on the tooth that must line up with the "dot" between the teeth on the cam gear.
The picture in the 1934 shop manual shows the "dot" as beinging four teeth from the key way slot.
The 1935 cam timing was revised and a different crank gear used. Would be best to see what the 1935 shop manual shows.
Gene Schneider
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: May 2010
Posts: 822
ChatMaster - 750
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ChatMaster - 750
Joined: May 2010
Posts: 822 |
Rossco,
I have an original (not copy) 1935 Chevy shop manual as well as a NOS camshaft gear. If there is some quote from the manual or photo of the gear that would be helpful let me know,
Ray W raywaldbaum@gmail.com
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