Distributor won't drop 351W ??? Fixed. Thanks 73Stallion

[screamin reel]

I have an 89 351W swiched EFI to Carb.

I pulled a Duraspark Dizzy (351W) from an 85 Merc. It won't drop in. The EFI one drops right in.

Lenght of shaft is different but this should not matter. Gears, shaft and everything measure the same and look the same.

Am I missing something ?

 

[Broncobowsher]

Real quick. Take a 5/16 allen wrench and try fitting both of them into the oil pump end of the distributer. It should fit both of them. If it doesn't fit see how well a 1/4 allen fits. If the 1/4 allen fits good then that is a 302 distributor.

 

[screamin reel]

Nope. Both are 5/16.

 

[telcolineman]

Is the longer shaft bottoming out on the oil pump drive?

 

[73stallion]

if it's stopping right at the O ring, it sounds like it's not dropping onto the oil pump drive all the way. did you try turning the engine and seeing if it'll drop?

 

[screamin reel]

Both shafts bottom out about 1/4" from the bottom of the gear.

I'll run out and try a spin of the engine.

 

[screamin reel]

Thanks 73 Stallion.

A spin of the engine and it dropped right in.

Thanks again.