99a main bearings
 

Can any one advise me a stockist who has the current manufacture main bearings for these engines,(39-47)2.499 std (King,Clevite or others)
Thanks Lawrie

Re: 99a main bearings
 

After a lot of hunting down , I ended up getting a set of clevite mains, as well as a set of King ones.
Lawrie

Re: 99a main bearings
 

If the scaresage gets too bad they can always be whittled out on a lathe.

Re: 99a main bearings
 

Pete, I was going to look at fitting the 8ba centre and front mains but machine the small tag slot on the other side, and using the 81 rear main.
Lawrie

Re: 99a main bearings
 

I've used both Clevite as well as King bearings lately - both are high quality. I'm more concerned with bearing clearances than the brand . . . would not have a problem running most any of them.

Re: 99a main bearings
 

What material would you use? I need a custom set.

Re: 99a main bearings
 

8BA and 59AB front and center main bearings are interchangeable. The rear thrusts are different.

Re: 99a main bearings
 

Mild engine, bronze.
Race engine 75T aluminum.

Re: 99a main bearings
 

Are the 99A and 59A different? I know the centre and front are the same 59A and 8BA. The rears are different 59A/8BA.

So are 99A and 59A different? I put a 99A together but just reused the old bearings.

Re: 99a main bearings
 

99A would be 39 Merc and they had 2.499 main journals, so think they would be the same.

Re: 99a main bearings
 

They are the same . . .