I just got some new cran Hydraulic roller lifters for my new cam and was wondering why when i push the push rod in to the lifter it goes in about a 1/8 of an inch could this be why my car is runnig like crap? Thanks for any help
Scott
Its a 89 305 TPI

 

i mean crane

 

Hydraulic lifters are spring loaded. Do you know how to adjust hydraulic lifters?

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'89 Red Formula 350- 350 .060 over forged pistons 232* @ .020 cam Performer RPM Holley 750 DP Vortec 1.94 1.50 Accel Coil and dist. Hedman shorty headers Dual Exhaust w/ cutouts 1LE WS6 suspension, wheels, and brakes, 9 Bolt 3.27 Posi Edelbrock LCA's & Track bar subframe connectors 700R4 A&A snorkel scoop Eclipse Head Unit Delco Bose Speakers 2 12" Pioneer subs w/ 400 watt/chanel amp

 

Since they are new they need to be soaked in oil over night, then take a pushrod and pump the lifter by depressing the plunger a few times. This will prime the lifter with some oil, but for the lifter to fully pump-up it will have to be run - hence the lifter clatter at initial start up. If you'll notice - on a lifter that has been run it is almost impossible to depress the plunger.

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91 B4C 305 TPI - SOON TO BE 383
TREMEC 5-SP, STOCK 1-BOLT REAREAND w/342 GEARS, K&N, AIRFOIL
EDELBROCK HEADERS, DUAL CAT TO HOMEMADE Y-PIPE & 3.5" SINGLE PIPE W/ FLOWMASTER, CRANK PULLEY, MSD, FUEL PRESS REG, COWL HOOD, WELD WHEELS
14.1@ 98MPH
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OTHER RIDE
67 CAMARO - STREET CAR, BIG BLOCK, PUMP GAS
350TH w/ATI 10", 12-BOLT w/373 GEARS
10.94@124.13 ON MOTOR - ET-STREETs w/MUFFLERS

 

I thought if you put the lifters in oil over night that would void any warrainties that were on it? Is this true?

 

It shouldn't. That's all that's in the lifter when the engine's running. That's how oil gets up to the rocker arms, valve tips, springs, etc. I don't think they (the company) would ever know that you did it if you did.

AJ

 

Actually oil is all your supposed to use on roller lifters. You could prolly use a small amount of assembly lube on the rollers/cam lobes, but don't use that thick moly cam break in stuff, thats only for flat tappets.\