Hydraulic Roller Cam - Who is Running One? Is is Quiet?
#1865439
07/06/15 09:51 PM
07/06/15 09:51 PM
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Joined: Jan 2003
Posts: 4,291 Morrow, OH
markz528
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Who is running a hydraulic roller cam in a 450/500 hp motor? Is it quiet? I have a noise in mine that sounds just like the race car which has a mechanical .700 lift roller cam. This one is around .550 lift.
Before I go insane, I would like to hear other people experiences.
I have a video but no idea how to post it. I will try to attach it.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865551
07/07/15 12:05 AM
07/07/15 12:05 AM
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Posts: 3,544 Syracuse,NY
CompWedgeEngines
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Whose cam, and whose lifers? What did you set the pre-load at, and what weight oil are you running?
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865552
07/07/15 12:05 AM
07/07/15 12:05 AM
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markz528
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Its hard to describe but it sounds like a toned down version of my race car with the high lift mechanical roller. I need to figure out how to post the video.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865611
07/07/15 01:22 AM
07/07/15 01:22 AM
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Joined: Jan 2003
Posts: 1,240 Saline, MI
efisixpack
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I run a comp hyd roller cam with crane hyd lifters. Harland Sharpe rockers I bought from Competition wedge. 515hp 440. 10w-30 oil with Lucas zinc additive. Had several initial issues due to builder, but he made it right and so far (1-year) everything is quiet and running well.
When I die I want to go like my Grandfather did, quietly in his sleep. Not screaming like the passengers in his car.
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865745
07/07/15 10:36 AM
07/07/15 10:36 AM
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smos001
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Hmmmm, Lifter stuck? Bent pushrod? Bad rocker? what rocker arms do you have? Aftermarket rockers will hit OEM valve covers. I would pull valve cover and take a look for something not right. Try to find the noisy lifter. Is the noise on only one side? Has it always done this?
Longshot... doubt it, but piston slap or exhaust leak. Does not sound like it though.
Last edited by smos001; 07/07/15 10:42 AM.
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865855
07/07/15 01:55 PM
07/07/15 01:55 PM
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markz528
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I am running refurbished by RAS Crane ductile iron rockers. I run OEM valve covers with a spacer (3/16"?) and double gaskets.
It seems to be distributed in the engine. Has it always done it - yes - with the old setup I thought it was the Harland Sharp rollers making noise.
All valvetrain is new - pushrods were checked before install.
It may very well not be in the valve train. If not, what can it be? Piston???? Does not sound like exhaust leak, although there may be some of that.
Think I will pull the VC off the easy side and recheck lash. Then I will pull each plug wire off one at a time to see if it changes.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865864
07/07/15 02:14 PM
07/07/15 02:14 PM
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MR_P_BODY
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If its been doing it from day one.. I would forget the valve train.. did you look at things like the crank just touching something... just barely.. does it do it hot and cold... I had a crank JUST touch when the engine got warmed up.. cold it didnt do it
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865941
07/07/15 04:35 PM
07/07/15 04:35 PM
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Joined: Aug 2013
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smos001
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I hate to keep throwing stuff at you... fuel rod and distributor gear both bronze? Should be for a steel billet roller cam.
hopefully when you pull the valve covers off, something will show up.
I would really look closely at the valve covers. Aftermarket rockers don't fit well under OEM. I had to take out the baffle on my chrome ones.
I have heard people run the engine without the valve covers. Then put the handle of hammer on each rocker one at a time and press down on it. See which lifter is making noise. I have never used this technique.
Last edited by smos001; 07/07/15 04:50 PM.
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: markz528]
#1865975
07/07/15 05:48 PM
07/07/15 05:48 PM
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lilcuda
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To me it sounds like piston slap combined with an exhaust leak.
'67 is an abbreviation of 1967 67' is an abbreviation of 67 feet They are not interchangeable.
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Re: Hydraulic Roller Cam - Who is Running One? Is is Quiet?
[Re: lilcuda]
#1866023
07/07/15 07:10 PM
07/07/15 07:10 PM
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Joined: Jan 2003
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markz528
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[
To me it sounds like piston slap combined with an exhaust leak. My gut feel tells me you are correct.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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