Urgent Help Needed 2A-C Vs 4A-C Distributors

[Addicted]

My 2A-C Distributor (AE80) has bearing noise as loud as the motor running. Can I take a 4A-C Distributor (AE82) distributor out of my wreck and swap it or is the mechanical/vac advance curves different. Need to know soon as the car does country driving and I am about to put it off the road.

 

All help appreciated as my manuals don't tell me anything and I couldn't find anything in search.

 

Damian

[Trev]

I never took into account that there might be an advance difference when I used the 2a one in the 4a, I could not tell you.

[Addicted]

So Trev, You've done it in Reverse and it worked ?

[Trev]

Yeah it did.