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Re: anyone have GOOD luck with the mopar alum hemi head
[Re: hemi_doug]
#658125
04/04/10 08:02 PM
04/04/10 08:02 PM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
Here is a hint that the "trouble" is on it's way....
IF you have a valve tap that comes and goes...SHUT IT DOWN AND GET THOSE FREEKIN HEADS OFF THAT MOTOR ASAP!
OK, there is something to this. Last year toward the end of the year, I kept getting, what I thought was a loose lifter. The noise would come and go, but eventually it would only get loud when the engine warmed up. It was coming from the right bank (#6 failed). When I pulled it apart, #3 cam bearing had turned. I thought that was the source of the ticking.
Jeez, maybe it was the seat telling me a along it was ready to fall out. I had a suspicion that that was the cause, but I figured there was no in between (either its in or its out).
Could I have been wrong?   
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Post deleted by Defbob
[Re: torkrules]
#658127
04/05/10 08:56 AM
04/05/10 08:56 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Re: anyone have GOOD luck with the mopar alum hemi head
[Re: maximus]
#658131
04/08/10 07:09 AM
04/08/10 07:09 AM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
We are talking pre Edelbrock heads, aren't we? Do any of the newer aluminum heads have this problem?
My understanding is that the Edelbrocks, Stage V, Indy, have not hand any problems so far.
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Re: anyone have GOOD luck with the mopar alum hemi head
[Re: 3ddart]
#658132
04/08/10 07:12 AM
04/08/10 07:12 AM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
anybody have a time frame (dates of manufacture) on the suspect heads? dave
Dave,
I bought mine late 2006/early 2007 (my memory's not what it used to be). So lets say thay sat on the shelf for a while. A safe bet would be 2004 until the Edelbrocks came out.
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Re: anyone have GOOD luck with the mopar alum hemi head
[Re: 3ddart]
#658136
04/13/10 07:04 AM
04/13/10 07:04 AM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
john: i bought mine in dec, 2005. that puts me right in the mix. they came from a local dodge dealer so i don't think they would have had them very long. also the guy that did the valve job said he saw no indication that anything was amiss, BUT!!! i'm still not sure what i'm going to do yet. dave
FWIW, I had the heads apart over the past winter to upgrade the springs for a mild roller cam and to clean up all of the baked on oil from the intake mismatch. I had to scrape crud off all the intake valves. I lapped the valves myself and didn't see anything out of the ordinary.
The engine ran fine all last year, but I was experiencing an intermittent tick that I thought were the hydraulic lifters. Toward the end of the year, the tick got more predictable (fine when cold but as soon as the engine warmed up it was there). At the end of the year I had it on the dyno to try to figure out what was going on. We pinned it to the right bank near the rear (#6 had the seat problem).
I thought the valve seat might be the culprit but I figured it would have just fallen right out. When I took the engine apart, I found #3 cam bearing oil hole had either turned 340 degrees or it was put in wrong. I always check everything so I doubt I would miss something that fundamental so I assumed thats what the ticking was. Now I think it was the seat trying to tell me something
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Re: anyone have GOOD luck with the mopar alum hemi head
[Re: SCATPK]
#658138
04/13/10 12:54 PM
04/13/10 12:54 PM
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Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
Hemi Allstate
master
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master
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
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Quote:
Here is a old picture of mine.
What year were those heads?
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