Hoosier Bird
Well-Known Member
ACME A12 said:[quote="Hoosier Bird"hl2gt19]Ok, found the valvetrain noise......my eBay pushrods must have been a custom length because they were about .125 longer than what they should have been. I didn't think that would hurt anything with the adjustable rockers. The diameter of the cup was larger than the cutout in the rockers so when I thought I had them adjusted it was pushing to the side. When I fired it up the pushrod dug a groove into the rockers and then started boring a hole through them until they reached the ball on the rocker. This left the rockers about .050 loose. I knew they were tight but didn't do anything about it....... :brickwall: So today I cleaned up the rockers, they were not hurt just took out about 4 threads on the bottom. Then I shortened the pushtubes by .100, installed everything, readjusted the valves and holy crap this thing sounds awesome....... Now, I have to fix the brake line, tidy up the wires and go for a test drive, then get george a burnout video.......
Sounds like it might be a good idea to check the roller bearings' travel pattern across the top of the valve stems given the troubles you've encountered. Always a good idea anyway in any roller rocker set-up...but it sounds like a really good idea in this particular case... Not to jinx you, but it would really suck to find out that you need shim the rocker shafts up to correct the valvetrain geometry and that you need some of that .100" that you just whacked off of the pushrods... Maybe you already checked this and my concerns are unfounded....I hope so.
Ray[/quotehl2gt19]
Geometry looks good.