MustangWorks.com : Ford Forums - View Single Post - 1st differential install - what went wrong? Long and some dumb questions.

WADS56 · 05-06-2003, 11:53 AM

I only read half of your post up to the part... "When spec'ing out my engine I made sure by calling Comp Cams if this cam would have any problems with clearance of any sort as far as valve to piston, and they said there wouldn't be any, so that part of the equation is clear is not the problem."

You ALWAYS check PTV clearance when installing a cam! It takes about 30 extra minutes to do this and will save you allot of time and money in the long run. You have a bent valve if it wont close all the way, or something is stuck between the valve and seat.

05-06-2003, 11:53 AM	#2
WADS56 gear banger Join Date: Aug 2000 Location: CHICAGO Posts: 1,144	I only read half of your post up to the part... "When spec'ing out my engine I made sure by calling Comp Cams if this cam would have any problems with clearance of any sort as far as valve to piston, and they said there wouldn't be any, so that part of the equation is clear is not the problem." You ALWAYS check PTV clearance when installing a cam! It takes about 30 extra minutes to do this and will save you allot of time and money in the long run. You have a bent valve if it wont close all the way, or something is stuck between the valve and seat. __________________ 79 Hatch: NA 347, Stage 2 Canfield Heads, Victor JR. Intake, Blueprinted Holley 750 HP, Solid Roller Cam, Shooting for 10's on motor 93 LX: Tremec, dual friction clutch, fms flywheel, Hedman shorties, O/R H-pipe Ricer hater's club member #49