hydraulic roller reliability
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Posting Guru
Joined: Mar 2006
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From: fargo, nd
hydraulic roller reliability
im putting together a 545 and looking at a crane cams hydraulic roller retrofit cam and lifters. anyone know if theyll last 100,000+ miles like regular hydraulic flat tappets?
Cargo Master
Joined: Dec 2003
Posts: 2,735
Likes: 38
From: Sunny Florida
I would say they should out last the flat tappet lifets and cam. After all there is no friction with the roller cam and lifters.
I have no experience with crane for such a long time but I have never read anything that would make me not use them in a DD motor.
I have no experience with crane for such a long time but I have never read anything that would make me not use them in a DD motor.
Postmaster
Joined: Nov 2001
Posts: 3,351
Likes: 1
From: Escondido, CA
The only thing that will make them fail is the link that holds them together or the needle bearings losing lubrication. Other then that they will last almost forever. I talked to my machine shop about the durability of roller lifters. They are still using a set of lifters after 5 or 6 seasons of punishment at the track and driving it to and from there.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
a windage tray won't hurt the rollers, remember the windage tray is under the crank your still going to get some spray on the top side of the crank even with a windage tray. And the windage tray has the advantage of getting the oil back into the pan faster allowing it to be recirculated through the engine instead of turned into a froth.
Elder User
Joined: Jul 2006
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From: right here in michigan
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Post Fiend
Joined: Jan 2003
Posts: 8,600
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From: Iowa
My '92 Explorer has a 4.0L V6 that came factory with a windage tray and a hydraulic roller cam. It currently has 221,625 miles, and runs like a top.
So yeah, go ahead and use the windage tray and hydraulic roller cam.
Now, if I was building a motor with a flat tappet cam, then I might think twice about the windage tray.
So yeah, go ahead and use the windage tray and hydraulic roller cam.
Now, if I was building a motor with a flat tappet cam, then I might think twice about the windage tray.
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Joined: Dec 2003
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From: Smith Mountain Lake, VA
Just watch your spring pressure's in a daily Driver..alot of guys will go crazy with the lift on the cam requiring higher pressure's..and then wonder why they have valvetrain failure's.... JMO.....
RJ
RJ
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From: fargo, nd
the springs i picked out are 99895-16
the recommended springs were a little higher spring rate and lower seat pressure... these are 403 lbs open and 144 seat, and are 1.54 inch od duals... theyre the best springs i could come up with from crane
the springs they recommended were 134 seat 424 open and 1.46 od... seemed too small to me for a rate of 448
the recommended springs were a little higher spring rate and lower seat pressure... these are 403 lbs open and 144 seat, and are 1.54 inch od duals... theyre the best springs i could come up with from crane
the springs they recommended were 134 seat 424 open and 1.46 od... seemed too small to me for a rate of 448
Last edited by darrin1999; Sep 24, 2006 at 08:09 AM.
