Anyone else with a noisy hydraulic voodoo cam? - Chevelle Tech
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post #1 of 22 (permalink) Old Aug 18th, 06, 10:06 PM Thread Starter
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Anyone else with a noisy hydraulic voodoo cam?

A few trips after my initial breakin with my hydraulic voodoo cam, and magnum roller tipped rockers, i started to hear some valvetrain noise, i would get a small tick. Anyone else have a noisy voodoo cam, or am i looking at a bigger problem here? Thanks Josh

p.s. its not a roller cam...
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post #2 of 22 (permalink) Old Aug 20th, 06, 7:48 PM Thread Starter
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Re: Anyone else with a noisy hydraulic voodoo cam?

Just incase most of you just assume, that i need to adjust my vavles again, i have done it about 4 times now, and i still get the tick back...I didnt have it during the break in, or ide say, the first two trips out, after that...it has been a sound that i dont like to hear, unless its no big deal!!
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post #3 of 22 (permalink) Old Aug 20th, 06, 8:10 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

Which Voodoo cam?
We've used 4 different Voodoo SB hyd flat tappet ones to date with zero noise out of any...very much unlike the XE Comp line which are noisy as he!!.

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post #4 of 22 (permalink) Old Aug 20th, 06, 8:15 PM Thread Starter
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Re: Anyone else with a noisy hydraulic voodoo cam?

bill, its lunatis 60104 and the lifters are correct, i bought the kit.
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post #5 of 22 (permalink) Old Aug 20th, 06, 8:26 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

If the noise goes away when you adjust them and then comes back repeatedly, then yes. I'd be worried...
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post #6 of 22 (permalink) Old Aug 20th, 06, 8:38 PM Thread Starter
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Re: Anyone else with a noisy hydraulic voodoo cam?

it doesnt go away n come back, it is there always, even after adjusting the vavles. Im just saying, i dont remember hearing it during breakin.(but again, that was with open headers) It doest get better or worse either, its just there.
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post #7 of 22 (permalink) Old Aug 20th, 06, 8:51 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

If you are eating a lifter, it should get worse. The voodoo cams I have installed have been pretty quiet though. Could be your rockers or even the valves themselves making the noise as they make contact with the seat. Could also be a small leak around your header flange.

Again if your are getting the noise soon after breakin and it doesn't get worse I don't think it's the cam. They go pretty quickly once they start to fail. Can you take the tick out at all during the adjustment if you do it while running?

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post #8 of 22 (permalink) Old Aug 20th, 06, 9:18 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

Quote:
Originally Posted by JCs70
bill, its lunatis 60104 and the lifters are correct, i bought the kit.
Same cam kit we put in my bro-in-law's 383 '69 Malibu back in May.
I believe I put on a set of Trick Flow 1.5 rockers at the same time.
No valve train noise.
And I know "noise"...we replaced a XE268 with the Voodoo.
BTW...nice cam!! His Chevelle runs mid 12s, very streetable and PBrakes work fine.

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post #9 of 22 (permalink) Old Aug 20th, 06, 10:03 PM Thread Starter
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Re: Anyone else with a noisy hydraulic voodoo cam?

Bill, i like the came as well, however i do not produce enough vaccume for power brakes. Im running them off of manifold vaccume, but its a Team G Hi-Rise intake.

I havent tried to adjust the vavles, with the engine running, i guess thats the next step. Thanks for the help bill.
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post #10 of 22 (permalink) Old Aug 20th, 06, 10:33 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

I put a set of magnum roller tip rockers of my 90 Chevrolet P-U many years ago and it was noisy from then on. Not the cams fault, I'm sure it was the rockers. Try a set of full rollers or even long slot stamped rockers and see what it sounds like.

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post #11 of 22 (permalink) Old Aug 20th, 06, 10:47 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

I' installed a Voodoo 262 and a 268 in the same 454 . Believe it or not, the 262 had an almost solid sound to it. Both were kits from Summit. I did notice that the lifters in the 262 kit had a shallow spiral groove around part of the body. Haven't called Lunati yet,but it's on the list!

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post #12 of 22 (permalink) Old Oct 6th, 06, 10:28 AM
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Re: Anyone else with a noisy hydraulic voodoo cam?

I have a noisey Voodoo 268 in my 460 BBC. I installed their lifters. The noise is present mostly on deceleration or light load. When the engine is pulling hard ther is no noticeable valve noise. The engine will not pull to 6000 RPM. I think I have valve float. I used the correct springs though. I have one lifter that seems to lose its prime if the car sits for a few days. Overall I have been a disappointed with the cam/ lifter noise.Any help or advise would be appreciated. ---- Thanks
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post #13 of 22 (permalink) Old Oct 6th, 06, 11:48 AM
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Re: Anyone else with a noisy hydraulic voodoo cam?

Remember the BBC has a greater rocker ratio than the SBC, so the valve velocities (valve action - opening, seating, etc) will be faster. The SBC will have slower action at the valve since the rocker ratio is less. The noise may be coming from the valve seating.

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post #14 of 22 (permalink) Old Oct 6th, 06, 12:37 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

Not sure what engine you have but especially on the small blocks with cast aluminum valve covers watch for contact between the pushrod end of the rocker arm and the side of the valve cover. You can usually see little scrub marks if they touch on the inside of the valve cover. Minor clearance work on the rockers will solve the problem.

I chased a noise caused by this for a while and sometimes when I checked/adjusted lash it would go away. Turns out it was going away because I set the valve cover down a little differently when putting her all back together.

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post #15 of 22 (permalink) Old Oct 6th, 06, 12:41 PM
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Re: Anyone else with a noisy hydraulic voodoo cam?

I have a similar problem.

I have a SBC 406 with the Voodoo 60111 Hyd Roller cam, Lunati lifters PN 72430 (made by Morel) and Comp's Pro Magnum full roller rockers. I adjusted the rockers a couple of times only to see that they were adjusted correctly already. I've inspected the springs, pushrods, and rockers for any abnormal contact but havent found anything. The engine runs GREAT! with lots of power. BUT IT SOUNDS LIKE A DIESEL at idle. At higher engine speeds other noises become loud enough to drown it out.

I'm at my wits end. I'm thinking that the roller tips on the rockers have a lot of side to side play and maybe thats causing the noise. I'm going to try some stamped rockers to see if the noise goes away.

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