Loud ticking and pulled the rocker box off, upper retainer is chewed up

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Jan 5, 2019 | 07:59 AM

#31

Kingglide549

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From: Viet Vet, crossroads

Nah
A OS speed will bend a valve, not whack the crap out of the top of the retainer.
JMO

Jan 5, 2019 | 08:33 AM

#32

Ed Ramberger

Grand HDF Member

Joined: May 2015

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From: Then Wisconsin, now North Carolina

Quote:

Originally Posted by Kingglide549

Nah
A OS speed will bend a valve, not whack the crap out of the top of the retainer.
JMO

I agree but I like the thought process.

Jan 5, 2019 | 12:41 PM

#33

Kingglide549

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From: Viet Vet, crossroads

Quote:

Originally Posted by Ed Ramberger

I agree but I like the thought process.

Someones guess will be right........LOL

Jan 5, 2019 | 01:21 PM

#34

Max Headflow

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From: poway

Quote:

Originally Posted by Hillsidecycle.com

Looks like the valve is pulling thru the collar.
Valve lock issue, or bubble-gum soft collar.
Scott

That would be my guess. Aluminum valve collar? Something got caught between the collar and rocker? .. PIcs of the rocker arm?

Jan 5, 2019 | 04:38 PM

#35

Ed Ramberger

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From: Then Wisconsin, now North Carolina

Quote:

Originally Posted by Max Headflow

That would be my guess. Aluminum valve collar? Something got caught between the collar and rocker? .. PIcs of the rocker arm?

So little info and pics - so much fun we are all having. No matter what, I still think the pics make it look like the boxes were not clearanced Clarence.

Last edited by Ed Ramberger; Jan 5, 2019 at 04:39 PM.

Jan 5, 2019 | 07:47 PM

#36

Max Headflow

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From: poway

Quote:

Originally Posted by Ed Ramberger

So little info and pics - so much fun we are all having. No matter what, I still think the pics make it look like the boxes were not clearanced Clarence.

Well Clarence, I'd go for something caught between the rocker and spring collar, assuming everything else is stock. Valve springs and collars aren't. Generally from what I've seen, when the lower rocker covers are not clearanced, the outside edge of the collar hits. The damage appears on the inner part of the collar. I would also guess that it ran for a while to "develop" a tick. From that I see of the valve springs they are smaller OD than the higher performance springs and the collars/springs are not stock 88. 96. 103.

Jan 5, 2019 | 07:56 PM

#37

Ed Ramberger

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From: Then Wisconsin, now North Carolina

Quote:

Originally Posted by Max Headflow

LOL Max. But seriously - even if it isn't the cause because it could be anything at this point - doesn't it look like the boxes weren’t clearanced? I realize there are not obvious marks but it does look too close for comfort in the pics. I've seen them tick and visually you could baaaaaarely tell they hit but they were close in proximity.

Last edited by Ed Ramberger; Jan 5, 2019 at 08:40 PM.

Jan 5, 2019 | 09:07 PM

#38

Max Headflow

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From: poway

Quote:

Originally Posted by Ed Ramberger

Well Ed, I don't think that marks were caused by a clearance issue. From what I've seen the later model lower rockers have better clearance than the earlier TC rocker box lowers. While the springs are straight wound and not beehives, they seem smaller OD than most aftermarket springs. They don't look any/much bigger than stock early springs.

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Jan 5, 2019 | 09:33 PM

#39

Ed Ramberger

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From: Then Wisconsin, now North Carolina

Quote:

Originally Posted by Max Headflow

I'm not talking about the marks - just am looking at the distance between collar and box. It's just a visual observation. You could be 100% and they are stock size and the pic just makes it look close. I did think about a soft collar like Scott suggested, but that's pretty rare. I was initially I was thinking interference of collar to box, but it would have to be big. Incorrect keepers - you might be on there. I was just having fun with it as it's really just a guessing game - none of us are there to physically inspect it, and unless it is truly a soft component, I am 10000% certain neither you, Scott nor myself would build something that would hit. But the OP hasn't even posted the component PNs.

I am onboard that the rocker arm was into the collar. It had to with it that low in the collar. Oh well - Just trying to have a good time in the rarely given the full story internet diagnostic game!

Jan 15, 2019 | 03:24 PM

#40

Zanthamos

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Joined: Feb 2015

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From: Arkansas

What does the rocker arm look like, if you have adjustable PR's and they are adjusted too short could cause beating rather than smooth operation as well, especially if the other valves that are setup identically are looking OK.