MustangWorks.com : Ford Forums - View Single Post - RR's have WAY too much play, even when shimmed.....ideas??????

tireburner163 · 01-14-2004, 12:32 PM

I just got mufflers on my car and I noticed that the RR"s were clattering. I figured they just needed re-adjusting because the lifters pumped up. So I let it warm up and took off the driver's side valve cover and notice that the #7 cylinder on the exhaust side has a LOT of play. Even with 1 "thick" shim under the pedistal I still have like 3/16" of gap between the roller tip and the top of the valve.

This wasn't like this before, when I built the motor!!!!

They are Crane 1.7 pedistal mount RR"s, and I'm running a flat-tappet cam.

ANY clue's as to what might be going on here? I drove the car for about 50-60 miles (including several races) open headered, so I couldn't hear the clattering.

HELP!!!!!!!!!!!!!!!!!!!!!!

-Josh, aka the tireburner

01-14-2004, 12:32 PM	#1
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	RR's have WAY too much play, even when shimmed.....ideas?????? I just got mufflers on my car and I noticed that the RR"s were clattering. I figured they just needed re-adjusting because the lifters pumped up. So I let it warm up and took off the driver's side valve cover and notice that the #7 cylinder on the exhaust side has a LOT of play. Even with 1 "thick" shim under the pedistal I still have like 3/16" of gap between the roller tip and the top of the valve. This wasn't like this before, when I built the motor!!!! They are Crane 1.7 pedistal mount RR"s, and I'm running a flat-tappet cam. ANY clue's as to what might be going on here? I drove the car for about 50-60 miles (including several races) open headered, so I couldn't hear the clattering. HELP!!!!!!!!!!!!!!!!!!!!!! -Josh, aka the tireburner __________________ 1987 Buick T-type 1998 HD Electra Elide