Crate hemi valvetrain noises

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HemiRat
Posts: 10
Joined: Sat Nov 20, 2004 1:49 pm
Location: Holland
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Crate hemi valvetrain noises

Post by HemiRat » Sat Nov 20, 2004 1:58 pm

Hi folks

Have a crate 426 , but have some noise in the pass side of the block
that's a bit to loud to my concern.

Looks like a lifter is not 100% set or is bad.

Any other ideas ?

I took the camcover of and strange enough i could feel some space
between the rod and the lifter BUT ! after that first feel , the space
was gone ??? looks like the lifter had some free space first but after
i lifted the pushrod it was gone ?

Also i had tightend the camcovers , could it be that because of that the
come to close to the valvetrain ?? ( these hughe covers must be high
enough ? or not ?) is clearance there so tight ?

What can i do ? cna you adjust the pushrods with when hydrolic lifters
are in place ? ( full with oil ? )

ANY HELPS APRICIATED !!!!

Thanks !!
Hemi-Rat

Always keep your PedalToTheMetal

R/T Jack
Posts: 50
Joined: Sat Nov 29, 2003 10:46 am
Location: Walla Walla, WA

Post by R/T Jack » Sun Nov 21, 2004 11:39 am

The lifters can be adjusted when they are full of oil. Check out this link for the procedure. http://www.moparts.com/Tech/Archive/motor/14.html

HemiRat
Posts: 10
Joined: Sat Nov 20, 2004 1:49 pm
Location: Holland
Contact:

Re: Crate hemi valvetrain noises

Post by HemiRat » Wed Dec 22, 2004 1:23 pm

HemiRat wrote:Hi folks

Have a crate 426 , but have some noise in the pass side of the block
that's a bit to loud to my concern.

Looks like a lifter is not 100% set or is bad.

Any other ideas ?

I took the camcover of and strange enough i could feel some space
between the rod and the lifter BUT ! after that first feel , the space
was gone ??? looks like the lifter had some free space first but after
i lifted the pushrod it was gone ?

Also i had tightend the camcovers , could it be that because of that the
come to close to the valvetrain ?? ( these hughe covers must be high
enough ? or not ?) is clearance there so tight ?

What can i do ? cna you adjust the pushrods with when hydrolic lifters
are in place ? ( full with oil ? )

ANY HELPS APRICIATED !!!!

Thanks !!
SOLVED THE PROBLEM !
THE VALVETRAIN WAS HITTING AGAINST THE COVERS ! , AT THE SIDE !
SO MADE SOME DENTS IN THE COVERS ( NO PROBLEM DONT SEE A THING BECAUSE ON THE SIDE ! ) NOW SOUND GONE !
SEEMS THE CRATE'S HAVE TO SMALL COVERS !, SO CRATE OWNERS
AND BUYERS BE AWARE OF THE PROBLEM . !
Hemi-Rat

Always keep your PedalToTheMetal

R/T Jack
Posts: 50
Joined: Sat Nov 29, 2003 10:46 am
Location: Walla Walla, WA

Post by R/T Jack » Thu Dec 23, 2004 10:18 pm

Glad to hear it wasn't anything serious. I have heard about the rockers hitting the covers before, I guess it is pretty common.

Bailiesdad
Posts: 438
Joined: Sat Dec 01, 2001 6:00 pm
Location: Maryland

Post by Bailiesdad » Fri Dec 24, 2004 1:09 pm

R/T Jack wrote:Glad to hear it wasn't anything serious. I have heard about the rockers hitting the covers before, I guess it is pretty common.
How could a stock rockerarm hit a stock valve cover? Oversized springs or retainers maybe but a stock rockerarm hitting the valve cover?

R/T Jack
Posts: 50
Joined: Sat Nov 29, 2003 10:46 am
Location: Walla Walla, WA

Post by R/T Jack » Fri Dec 24, 2004 9:34 pm

Bailiesdad,
I don't know how they could hit stock valve covers with stock rockers. His car does have the alum. rocker shaft supports. Don't know if that could cause it or not. I have heard that rockers hitting the valve covers on hemi's was quite common. Is that with longer valves? I know some of super stock guys had to dimple there valve covers for the exhaust rocker arms to clear. Anyway he said that fixed the noise so I guess that is what the problem was.

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