after rebuilding wheels - now I have to fix the damage done by the spun cam bearing - here is my approach - I can overbore the case to accept the 1.125 OD drawn cup bearing - the BHK1310 has the same load carrying properties as the B138 - I'd rather use a BH138 but the BH138 is not available - the bearing I have purchased is USA made and is used in Ford transfer cases - any other fixes out there - I could press in a sleeve - but that makes for two press fit sleeves and after talking with guys at the race shop - they dont think that is the best approach given the sleeve would be thin - I could reweld the case - and then bore to 1 1/16 for the B138 - but that creates other issues

 

Give Scott@Hillside cycle and machine a call.... He's a pretty damn good machinist... 315+495+6650. He's also a forum sponsor. Cruises the engine Mechanical section quite frequently....

 

I have my own machine shop including industrial ovens for welding prep and all tooling for rebuilds - I'm sure Scott is great and all - but I do my own work - I was hoping to hear about any methods used by others when they repaired cases following a spun cam bearing - and then I would post my approach and method and tell about the outcome

 

your not thinking out of the box, they make oversize cam brass bushing that were used 1936 on millions of miles on those motors - use a jims bushing

 

jzjz - I figured it I overbore it I may as well use the roller - although if I go brass I could make my own bushing and bore to whatever size I want - using whatever end mills I have in the tool box (which is a lot of sizes)

 

your a talented dude just know the brass is not really a step back and some of the jims stuff in ampco 45 and sized up front no special reamer needed, as that one is nadda cheap to buy for that

if its your own stuff then yea re invent the wheel if you want, but on a customers dime we look at his end cost verses losing more then one, as you know what happens when its too pricy all the while having NO idea what we are trying to save for him

 

Sorry.... I wasn't aware.....

 

If you do use the roller bearing dump that damned INA and get a Torrington.

 

lots of original Torrington out and about they sold out to KOYO and they are making the original cam bearing in japan or CT USA labeled KOYO

 

I found a bag full of the Torringtons at a surplus house one time, my supply will out live me.