I had the fun task of matching a starter to to '70 block to a '65 chevelle Muncie 4sp. I found a starter that fits the flywheel, but I am unsure if I have it shimmed correctly. Is there a way to gauge it and if so what is the process. I don't want to ruin my flywheel

Most of the starters I've had want about .035 clearance at the bottom of the tooth when engaged to the flywheel; carefully pry the starter gear into the flexplate with a screwdriver and check it. If it's too tight they offer shims to move the starter away from the block, increasing the space between the gear and flexplate. If it's too loose (over .060 or so) you can shim just the outer starter bolt (towards the outside of the engine) to decrease the distance. I rarely get .035; I've had .050-.060 with no problems.

Another good way is to take a 1/8" drill bit as a gauge. With the starter snugged to the block as a starting point. Take and stick the drill bit between the starter shaft(perpindicular to) and flywheel. Shim your starter accordingly. The idea is to get little resistance on the drill bit. Has never failed me yet. Hope this helps

71 Camairo

a guy at a old mom and pop auto parts store told me to use a large paperclip (unwound), and that it's .035(checked with a mic. and it was .0347....go figure.

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My68Camaro (http://hometown.aol.com/dougs68camaro/index.html)
Doug G.
68 Camaro
406 ci.