351 Mustang

2 for 2 now! Msd distributor gear?

Old 04-19-2007, 06:35 PM
Arrid Extra Dry
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Join Date: May 2006
Posts: 236
Default RE: 2 for 2 now! Msd distributor gear?

i would try another distributor, something has to be messed up about the msd that your running now.
i would go to a junkyard and find a distributor out of something like a 89 f250 fuel injected, which where flat tappet motors, so the gears will work with your camshaft, and it will allready have the modual in it too.
or go to advance auto parts and buy a stock 351w for an 89 f250 fuel injected.
maybe if you try that it might fix it? good luck , i hope ya finger it out.
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Old 04-20-2007, 11:58 PM
H Dean
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Join Date: Oct 2004
Location: Kentucky
Posts: 113
Default RE: 2 for 2 now! Msd distributor gear?

have you tried the steel gear? at this point elimination of the other types indicates this for a try.

i just had that nightmare and was lucky a racing buddy looked at my new distb before i put it in. i admit the new distb had a 'warning' label attached to the bottom of the distb and it specified what gear goes with what cam.

i hate to bring it up, but is there anyway to see if there is damage to your cam? arent there shims on the cam or some sort of depth alignment for the cam? i know that means getting back into the motor, but sounds like otherwise you are running out of options.

keep us updated on how you fixed it.

man you got a good lookin car!

who built your motor? what efi set up are you running. i'd love to get an efi set up for my car. i'd love to be able to turn the fuel/air ratio for more hp... I think i'm leaving a lot of hp on the table with my car.

good luck..
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Old 04-21-2007, 04:59 PM
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Join Date: Apr 2007
Location: California
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Default RE: 2 for 2 now! Msd distributor gear?

Did you check your cam thrust when you assembled the engine? If you didn't there's a chance the thrust could be off and that's causing a misalignment between the gears. If you can look down into the dist. hole at the came gear and have someone turn the engine over by hand(or you can and see at the same time) see if the cam gear is torn up as well, if it is you'll have to replace the cam, but check your thrust BEFORE you remove it to see if it was correct. If the thrust is off that could be it, if the thrust is correct and the cam gear either is or is not worn, then it could be the distributor itself, the shaft bearings could be misaligned with the housing from a manufacturing defect, bad bearings etc. But if the gear looks fine, try a different distributor as was suggested before.
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Old 04-26-2007, 05:08 PM
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Join Date: Mar 2006
Location: Warwick, RI
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Default RE: 2 for 2 now! Msd distributor gear?

Aw ****, I'm going to be using the same cam on my carbed 351
I hope I dont run into the same issue!
Once you get it sorted out, let me know so I dont have the same problem.
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