The Ford Barn

Lawrie · 03-09-2021, 02:17 AM

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

Lawrie · 03-10-2021, 09:09 PM

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

Pete · 03-10-2021, 10:16 PM

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

Lawrie · 03-11-2021, 02:07 AM

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

Bored&Stroked · 03-11-2021, 08:21 AM

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.

Yoyodyne · 03-11-2021, 09:29 AM

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Quote:

Originally Posted by Pete

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

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

flatjack9 · 03-11-2021, 12:05 PM

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

Pete · 03-11-2021, 03:53 PM

Quote:

Originally Posted by Yoyodyne

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

Mild engine, bronze.
Race engine 75T aluminum.

Mart · 03-11-2021, 05:12 PM

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.

flatjack9 · 03-11-2021, 09:40 PM

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

Bored&Stroked · 03-11-2021, 09:43 PM

Quote:

Originally Posted by Mart

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.

They are the same . . .

03-09-2021, 02:17 AM	#1
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,215	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

03-10-2021, 09:09 PM	#2
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,215	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

03-10-2021, 10:16 PM	#3
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,408	Re: 99a main bearings If the scaresage gets too bad they can always be whittled out on a lathe. Last edited by Pete; 03-11-2021 at 03:51 PM.

03-11-2021, 02:07 AM	#4
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,215	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

03-11-2021, 08:21 AM	#5
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,064	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.

03-11-2021, 12:05 PM	#7
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,526	Re: 99a main bearings 8BA and 59AB front and center main bearings are interchangeable. The rear thrusts are different.

03-11-2021, 05:12 PM	#9
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,750	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.

03-11-2021, 09:40 PM	#10
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,526	Re: 99a main bearings 99A would be 39 Merc and they had 2.499 main journals, so think they would be the same.