J
Jason Parham
Guest
Results from machine shop
The machine shop cleaned and mic'ed my block and crank today. The rod journals had a few thousanths wear in them which would require turning the journals 0.010". I called Coy Miller today and asked him about turning the rod journals and he told me 0.010" is about as much as they like to take off and said its ok as long as the journal ends are radiused correctly. The guy at the machine shop believes people who may have had a machined crank break either turned them too much or the journals werent radiused right by the machinist. Since it seems ok to have my cranked turned, I'll have that done and use the appropriate oversize bearings.
Now on to the other stuff. The rods checked out fine so they can go back in. The cylinders have about 5 thousandths wear in them. The ring manufacturer states that it can handle 9 but since this is a blower motor I think the smart thing to do is have it bored the minumum 20 over and get new pistons. I may ask Coy what his recommendation is on brands of pistons. Any of you guys have any preferences? My heads look fine but my dad will take look over them at work tomorrow and shim the valvesprings if neccessary.
Later,
Jason
PS: You guys ought to see all the parts scattered over the garage floor! Its a mess!
The machine shop cleaned and mic'ed my block and crank today. The rod journals had a few thousanths wear in them which would require turning the journals 0.010". I called Coy Miller today and asked him about turning the rod journals and he told me 0.010" is about as much as they like to take off and said its ok as long as the journal ends are radiused correctly. The guy at the machine shop believes people who may have had a machined crank break either turned them too much or the journals werent radiused right by the machinist. Since it seems ok to have my cranked turned, I'll have that done and use the appropriate oversize bearings.
Now on to the other stuff. The rods checked out fine so they can go back in. The cylinders have about 5 thousandths wear in them. The ring manufacturer states that it can handle 9 but since this is a blower motor I think the smart thing to do is have it bored the minumum 20 over and get new pistons. I may ask Coy what his recommendation is on brands of pistons. Any of you guys have any preferences? My heads look fine but my dad will take look over them at work tomorrow and shim the valvesprings if neccessary.
Later,
Jason
PS: You guys ought to see all the parts scattered over the garage floor! Its a mess!