oil supply to rockers [Archive] - Chevelle Tech

: oil supply to rockers


JC66
Apr 13th, 04, 1:58 PM
Still hear clicking from the ss Crower roller rockers after readjusting so I took the driver's side cover off and ran the engine to see what was going on. At idle, the intake rocker on #7 is flooding with oil while the intake and exhaust rockers on #1 seem to be starving while the rest appear normal. I was running 10w-30 and getting about 18lbs at idle. I switched to 20w-50 and now get about 35lbs at idle. should this fix the problem?
TIA, JC

BB485
Apr 14th, 04, 3:41 AM
Check lash on #1.You should have alot of oil coming up,if not maybe worn cam lobe.

JC66
Apr 14th, 04, 10:39 AM
It is a hydrolic roller cam, lash is 0 plus 1/2 turn...and the lifters seem to be pumping up.

Ark68SS
Apr 14th, 04, 3:22 PM
Pull the rockers off & be sure that the hole in the pushrod cup is lined up with the hole drilled in the rocker. Also, take a piece of thin wire & run it through the hole in the pushrod cup & be sure that it's drilled all the way through to the roller end of the rocker. You can also pull the pushrods & be sure that they aren't stopped up.

BL