new HEMI 6.1 Valve spring failure
#1499376
09/09/13 11:28 PM
09/09/13 11:28 PM
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Joined: Sep 2003
Posts: 468 Germany, Northcoast
Buschi340
OP
mopar
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OP
mopar
Joined: Sep 2003
Posts: 468
Germany, Northcoast
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there is a "thing/cover/whatever" wrapped around the valve springs. This broke on one cylinder. See picture. Found a picture on the web which shows it new. My questions are: - whats that thing called - What is it doing, is it necessary - easiest way to replace. Heads off? - common problem? ( I know I have to search for the small parts in the engine. Hope I find them in the sump. Cross your fingers..... )
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Re: new HEMI 6.1 Valve spring failure
[Re: Buschi340]
#1499377
09/10/13 02:09 AM
09/10/13 02:09 AM
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Joined: Jan 2007
Posts: 1,668 Mi,U.S.A.
mike s
top fuel
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top fuel
Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
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That thing is a damper for the spring.Same as the flat coil inside the valve springs we are used to.No room in the beehive spring for the flat style.Likely sitting on the windage tray/ oil pan gasket.You might try a small magnet thru the oil drain plug but there isn't much room.You can change them without removing the cyl hd.You will have to fab or borrow the special tool.
Leave the gun.......take the Cannoli's....Mike
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Re: new HEMI 6.1 Valve spring failure
[Re: AlexP]
#1499379
09/11/13 06:21 AM
09/11/13 06:21 AM
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Joined: Sep 2003
Posts: 468 Germany, Northcoast
Buschi340
OP
mopar
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OP
mopar
Joined: Sep 2003
Posts: 468
Germany, Northcoast
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no, the cam is stock. Thanks for the link. I ordered 2 new springs and now I read the spring rates did change too? Our dealer is not aware of it. Ok, its Germany, they don't know that much . Unfortunately I found more material in the other head and in the oil. Guess I need to replace them all for a good aftermarket set. I'm afraid that this will happen again. Any ideas of a good brand? Didn't search yet. Maybe CompCam?
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Re: new HEMI 6.1 Valve spring failure
[Re: Buschi340]
#1499380
09/11/13 07:40 PM
09/11/13 07:40 PM
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Joined: Jan 2003
Posts: 4,437 Omaha Nebraska
Brian_wo
master
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master
Joined: Jan 2003
Posts: 4,437
Omaha Nebraska
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I put the PAC12s in my Magnum when I installed the Sparrow cam but I guess at one time they had trouble with those to.
who is that guy?
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Re: new HEMI 6.1 Valve spring failure
[Re: Buschi340]
#1499384
09/12/13 12:51 PM
09/12/13 12:51 PM
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Joined: Sep 2003
Posts: 10,645 Houston, Tx
AlexP
I Live Here
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I Live Here
Joined: Sep 2003
Posts: 10,645
Houston, Tx
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Quote:
no, the cam is stock. Thanks for the link. I ordered 2 new springs and now I read the spring rates did change too? Our dealer is not aware of it. Ok, its Germany, they don't know that much .
Unfortunately I found more material in the other head and in the oil.
Guess I need to replace them all for a good aftermarket set. I'm afraid that this will happen again.
Any ideas of a good brand? Didn't search yet. Maybe CompCam?
Quote:
IMO, I'd stay away from the springs with the green stripe. Search out the ones with the blue stripe. Dropped a valve on my 09 SRT with only 10,654 km on it. After a little research, a few members here, and on another two forums all echoed the same disappointing failure with the green striped springs. Just something to be aware of. BTW, 25,000 km later and many hard pulls, it's been flawless.
Replace them all with the drop in PAC's or a fresh set of stockers. I wouldn't reuse any of those springs if you've had damper problems.
You can run 6.1 exhaust springs on intake and exhaust with a .100 to .130 set of shims on the intake side. Guys ran .580 lift cams like that for YEARS in the LXforums world until springs started becoming more common.
I would run the correct PAC1235 spring and be done with it. At least you'll have the right springs for a cam later
http://www.racingsprings.com/1200%20Series/PAC-1235/item/211
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