rocker arm question

redsn95vert · 10-24-2005, 01:22 PM

This may sound like a dumb question, but nobody has given me a straight answer yet....
How important is it to set each cylinder to top dead center when changing out rocker arms. I've done numerous head swaps before and all I had to do was set cylinder one to tdc and go from there. Every manual says to set each cylinder at tdc, but I don't know why, and I'm woundering if you really have to do it if you're just swapping rocker arms.

Gearhead999 · 10-24-2005, 03:07 PM

If the rockers are adjustable, the answer then is yes. You have to set the preload on the lifter.

If the rockers just tighten down and bottom out. The answer is no, because there isn't any adjustment to be made.

10-24-2005, 01:22 PM	#1
redsn95vert Registered Member Join Date: Jul 2000 Location: Rochester Posts: 323	rocker arm question This may sound like a dumb question, but nobody has given me a straight answer yet.... How important is it to set each cylinder to top dead center when changing out rocker arms. I've done numerous head swaps before and all I had to do was set cylinder one to tdc and go from there. Every manual says to set each cylinder at tdc, but I don't know why, and I'm woundering if you really have to do it if you're just swapping rocker arms. __________________ 95 GT convertable, ported+polished GT40 heads, port matched upper and lower Cobra intake manifold, Flowthech headers, Catco hi-flow h-pipe with 2 hi-flow cats, Mac true fit catback exhaust, 3.73 gears, underdrive pullies, Edelbrock 70mm throttle body, Mac cold air intake, FMS 24lb injectors, Granatelli 75mm mass air

10-24-2005, 03:07 PM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: rocker arm question If the rockers are adjustable, the answer then is yes. You have to set the preload on the lifter. If the rockers just tighten down and bottom out. The answer is no, because there isn't any adjustment to be made. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

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