how to tell if hydraulic or solid lifters - Team Camaro Tech
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post #1 of 2 (permalink) Old Nov 18th, 05, 09:33 AM Thread Starter
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Scott
 
Join Date: Apr 2005
Location: Yardley, PA
Posts: 90
Question how to tell if hydraulic or solid lifters

The guy I bought the car from last march said the engine has solid lifters, but I don't trust him as several items of engine are not as claimed. One of my rockers is really loose and I want to check/adjust all valve lashes. Is there an easy way to tell if I have solids or hydraulic lifters? I have clear instrutions on setting valve lash for solid lifers, but what about hydraulic?
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post #2 of 2 (permalink) Old Nov 18th, 05, 11:52 AM
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Steve
 
Join Date: Jun 2005
Location: Melbourne, Australia
Posts: 2,864
Re: how to tell if hydraulic or solid lifters

IF you attempt to adjust the preload on a solid cam, your lifter's plunger will depress. If you are attempting to do the same thing to a solid cam, your lifter cannot depress and your valve will open instead.
Tighten the adjusting nut until you are unable to rotate the pushrod by hand, Then if you attempt to give it another 1/2 turn what happens? On a solid cam, the valve movement will be very subtle and a dial indicater would be handy, although you may be able to see it move. On a hydraulic, no valve movement should exist.

Also, if you are using stock crimped lock nuts, throw them in the trash in favor of a set of Posilocks. Those crimped nuts have a repuation of backing of and have cost me a few valvetrain parts.

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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