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Distributor Not Turning

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akimmet View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote akimmet Quote  Post ReplyReply Direct Link To This Post Posted: May/17/2018 at 11:01am
Originally posted by Bandana Bandana wrote:

Anyone have experience / insight on the quality of the timing covers from APD?

I spoke with Bulltear this morning and apparently they no longer carry the distributor and cam gears.... Any recommendations on where to go for a set???? Are these Crown gears any good?



Lately folks have been using the MSD cam and dist gears with success.

I highly recommend taking off the timing set and inspecting the oiling pasages, aftermarket sets can have blocked or incorrectly placed oiling pasages. If that is the case even a good set of dist gears won't last too long.
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Airdrie AMX View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Airdrie AMX Quote  Post ReplyReply Direct Link To This Post Posted: May/17/2018 at 10:13pm

Here are some pics of 3 different sources of gears as to how different they can be. The first pic is an MSD on the left and an original on the right.
The second pic is another original on the left and the MSD on the right pictured end to end.
The last is another MSD on top and I believe a crown brand pictured end to end.
Pretty big differences in the pitch of the teeth and depth at the root, Mix any of the non oem dist gears with an original cam gear and it's a roll of the dice how it will end up.
72 amx javelin 401 4spd
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Bandana View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bandana Quote  Post ReplyReply Direct Link To This Post Posted: May/18/2018 at 9:04am
Thanks for the pictures, yes they certainly do vary alot. I got all my parts ordered yesterday. Got a new timing cover from Bulltear (old one is for sale if anyone feels that chip is inconsequential). Went with the Crown gear set and Felpro gasket/seal kit from Summit.
I could not justify paying $120 for the MSD gear set while the Crown set was $29, especially without hearing any real push for the MSDs. Even the Tech at Summit felt the Crowns would be fine.
Got a bit of clean up to do on the front of the engine today and then I will try to look for any issues with the oiling passages. Then its a wait for parts to arrive - or more specifically the timing cover from Bulltear.....
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