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Re: Ray Barton 528 failure what to look for, what happe
[Re: gdonovan]
#771325
08/31/10 05:09 PM
08/31/10 05:09 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
If that engine was turning 7,000 RPMs with only 5 quarts of oil in the pan, there's little doubt you exposed the oil pick-up and were sucking air.
That was my thought.
No doubt in my mind, that's what spun the main bearings. How can you have spun bearings yet no signs of oil starvation?
7 flat cam lobes?? The valve train was not setup right from the get go either and is not supposed to be loud. Audible yea, loud no.
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Re: Ray Barton 528 failure what to look for, what happe
[Re: Challenger 1]
#771326
08/31/10 06:36 PM
08/31/10 06:36 PM
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Joined: Feb 2007
Posts: 2,315
MOPAR HEADQUARTERS IN ALDEN NY
hemigod426
top fuel
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top fuel
Joined: Feb 2007
Posts: 2,315
MOPAR HEADQUARTERS IN ALDEN NY
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Quote:
Quote:
Quote:
If that engine was turning 7,000 RPMs with only 5 quarts of oil in the pan, there's little doubt you exposed the oil pick-up and were sucking air.
That was my thought.
No doubt in my mind, that's what spun the main bearings. How can you have spun bearings yet no signs of oil starvation?
7 flat cam lobes?? The valve train was not setup right from the get go either and is not supposed to be loud. Audible yea, loud no.
i dont think pan/pickup/oil level had anything to do with what happen, you would have to hold pedal down @7,500 rpms for over 2 minute to cavitate stock oil pan, hemi heads/block have huge return holes on all four coners,wedge dont. think cam fried and packed all bearings feeds with oil shut off oil flow to them, if it keep runing would be rods out the block...
MOPAR OR NO CAR
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Re: Ray Barton 528 failure what to look for, what happe
[Re: imfixinmopars426]
#771328
08/31/10 09:54 PM
08/31/10 09:54 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:
since cam failed,wonder if it was broken in w/ light springs? then inners added after? or just slammed together,and shipped? hmmmmm
I wonder if it was the chicken first then the egg or vice versa (did the cam fail and cause the other damage or did the bearing fail and cause the damage) I think the cam failed and took everything else with it.
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Re: Ray Barton 528 Valve Train Oiling
[Re: ChrisDavis]
#771332
09/29/10 09:35 PM
09/29/10 09:35 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:
Are any of you familiar with how Ray Barton oils the valve train?
In tearing the engine down I see sprayers on the intake rockers, but not on the exhausts. Also the lifter boars are bushed and the bushings have no oil holes at all in them. Ray Barton’s people are telling me that the cam splashes enough to keep the solid lifters oiled and that the intake sprayers will splatter around enough for the exhausts.
My engine rebuilder disagrees and is going to drill an oil hole in the lifter bushings and possibly the exhaust rocker shafts as well. What do you think about Ray Barton’s oiling and what my engine rebuilder wants to do?
The holes in the bushing are done for hydraulic cams or engines that oil the valve gear with lifters/pushrods designed for through the push rod oiling ah-la Chevrolet. They are correct in that a solid lifter/solid roller would get enough oil from splash and won't need the holes.
The spray nozzle thing is interesting. Normally it's the exhaust push rods that get the spray nozzles
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Re: Ray Barton 528 failure what to look for, what happe
[Re: torkrules]
#771334
09/29/10 11:53 PM
09/29/10 11:53 PM
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Joined: May 2003
Posts: 6,558
Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,558
Downtown Roebuck Ont
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Quote:
Quote:
since cam failed,wonder if it was broken in w/ light springs? then inners added after? or just slammed together,and shipped? hmmmmm
I wonder if it was the chicken first then the egg or vice versa (did the cam fail and cause the other damage or did the bearing fail and cause the damage) I think the cam failed and took everything else with it.
The idle slowed because the cam failed, pick-up is blocked because the screen is full of camshaft, starved pump, boom.
Kevin
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Re: Ray Barton 528 failure what to look for, what happe
[Re: Twostick]
#771337
10/18/10 04:12 PM
10/18/10 04:12 PM
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Joined: Jan 2003
Posts: 74,942
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,942
U.S.S.A.
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Quote:
Quote:
Quote:
since cam failed,wonder if it was broken in w/ light springs? then inners added after? or just slammed together,and shipped? hmmmmm
I wonder if it was the chicken first then the egg or vice versa (did the cam fail and cause the other damage or did the bearing fail and cause the damage) I think the cam failed and took everything else with it.
The idle slowed because the cam failed, pick-up is blocked because the screen is full of camshaft, starved pump, boom.
Kevin
the pickup wouldn't be clogged with camshaft unless the particles were very big , metal on metal grinding leaves very small pieces , what happens is they get thru the screen and into the oil pump and it does a number on the oil pump since the oil goes thru it before it gets filtered.
Good luck with the second bullet , did you go back to Barton with it or take it elsewhere ?
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Re: Ray Barton 528 failure what to look for, what happe
[Re: ChrisDavis]
#771339
10/18/10 06:24 PM
10/18/10 06:24 PM
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Joined: Jul 2009
Posts: 249
Sonora, CA
68X426
enthusiast
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enthusiast
Joined: Jul 2009
Posts: 249
Sonora, CA
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Chris: did you finally drill oil holes in the rocker shafts and/or the rocker arms?
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1968 Plymouth Road Runner, Hemi and much more
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1958 Dodge Pick Up, 383 and loud
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