y-block lifters

Posted By lameyer 16 Years Ago

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y-block lifters

Author	Message
lameyer	Posted 16 Years Ago
Supercharged Group: Forum Members Last Active: 4 Years Ago Posts: 42, Visits: 2.5K	Does a 292 use the same style of lifters as the 272?
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aussiebill	Posted 15 Years Ago
Supercharged Group: Forum Members Last Active: 6 Years Ago Posts: 1.8K, Visits: 11.4K	Oldmics (1/4/2011) Has anybody spoken to Vern about the failure. I gotta admit that I"m a little concerned. Got a fresh engine here waiting for Mummerts heads that have Vern"s "white box" lifters inside. Now I am considering changing those out for some old N.I.B. Wohlert Johnson tappets that I was saving. Wadduya think folks.Safe with Verns products?Or change them out to be safe? Oldmics Mike, saving the good lifters for what? use the good ones while you pursue the others, thats my thoughts. regards bill. AussieBill YYYY Forever Y Block YYYY Down Under, Australia
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y-block lifters By lameyer ( 16 Years Ago )

239, 256, 272, 292, and 312 all use the same lifters. By Butch Lawson ( 16 Years Ago )

Thank's By lameyer ( 16 Years Ago )

lamyer: If you are buying new lifters, be careful! There are some off... By PF Arcand ( 15 Years Ago )

There were at least three different types of factory tappets. Two... By Dennis K. ( 15 Years Ago )

It would be great to get to the bottom of this issue of what lifter... By Barry L ( 15 Years Ago )

Here's a pic of the broken lifter from JC 's engine . Barry By Barry L ( 15 Years Ago )

Re the failure, was anyone able to tell if that was the root cause or... By Dennis K. ( 15 Years Ago )

Not a pretty sight.

Do you know were the tappet was located... By marvh ( 15 Years Ago )

I'll have to check with Jerry C. about part numbers. He did say the... By Barry L ( 15 Years Ago )

Just pulled our 312 down today and surprisingly half the lifter fell... By EBird1 ( 15 Years Ago )

[quote][b]EBird1 (3/7/2011)[/b][hr]Just pulled our 312 down today and... By Ted ( 15 Years Ago )

Hate to say it but I think your right. That break does look too... By EBird1 ( 15 Years Ago )

Knowing Jerry and his intended use for this engine, I'm sure it had a... By Hoosier Hurricane ( 15 Years Ago )

I’ll add that pushrod clearance issues at the heads and/or... By Ted ( 15 Years Ago )

So what do you guy's think of Elgin valve train part's? I plan on... By lameyer ( 15 Years Ago )

[quote][b]lameyer (1/2/2011)[/b][hr]So what do you guy's think of... By Ted ( 15 Years Ago )

Yes, both hardness and case depth. There are ways of checking with... By Dennis K. ( 15 Years Ago )

What sort of experimentation has been done with using different... By GREENBIRD56 ( 15 Years Ago )

I was there when Jerry C's lifter failed... His engine was running on... By RB ( 15 Years Ago )

Royce, thanks for the flywheels, I took a pass on the block. As to the... By Barry L ( 15 Years Ago )

Barry I sure would not risk it if I was unsure of my lifters origin.... By marvh ( 15 Years Ago )

Has anybody spoken to Vern about the failure. I gotta admit that I"m a... By Oldmics ( 15 Years Ago )

[quote][b]Oldmics (1/4/2011)[/b][hr]Has anybody spoken to Vern about... By aussiebill ( 15 Years Ago )

I always bank on the old original USA stuff .My vote is Wohlert, just... By speedpro56 ( 15 Years Ago )

If I read the article correctly in the latest issue, #101 of YBM,... By PF Arcand ( 15 Years Ago )

Ted: A thought based on your observation about the undercut on the... By PF Arcand ( 15 Years Ago )

[quote][b]PF Arcand (1/6/2011)[/b][hr]Ted: A thought based on your... By Ted ( 15 Years Ago )

In reading the YBM article on Jerry's engine, it was stated the broken... By Hoosier Hurricane ( 15 Years Ago )

Hi John, The broken rocker was a stock style with bronze bushing and... By Barry L ( 15 Years Ago )

Another scenario could be that the broken rocker arm jammed under the... By Y block Billy ( 15 Years Ago )

A little bit more about the problems on Jerry's EMC engine...We... By RB ( 15 Years Ago )

[quote][b]Y block Billy (1/8/2011)[/b][hr]Ted, On the undercutting,... By Ted ( 15 Years Ago )

I've seen some good bushed rockers in the past but generally I stay... By mctim64 ( 15 Years Ago )

I have used the bushed rockers and have had no problems either. I like... By marvh ( 15 Years Ago )

Ted: A late tool shop machinist friend of mine referred to those... By Hoosier Hurricane ( 15 Years Ago )

[quote][b]Hoosier Hurricane (1/10/2011)[/b][hr]Ted: A late tool shop... By Dennis K. ( 15 Years Ago )

Ted, Dennis, All good points there, I do think some of the undercuts... By Y block Billy ( 15 Years Ago )

Not strength, flexibility. It essentially makes the part tougher,... By charliemccraney ( 15 Years Ago )

"Flexibility" is a good term, many things that are made "tougher"... By mctim64 ( 15 Years Ago )

Bill/ Charlie, In simple terms, so I can understand it. If you... By pegleg ( 15 Years Ago )

I understand. I should rephrase. Flexibility, per Ted's explanation,... By charliemccraney ( 15 Years Ago )

Great analogy,Charlie! By PWH42 ( 15 Years Ago )

There are basically three reasons to provide an undercut radius - the... By GREENBIRD56 ( 15 Years Ago )

As I understand it, it's the lines of strain that get concentrated at... By pcmenten ( 15 Years Ago )

[quote]Also, was there enough of the right kind of ZDDP in the oil?... By pegleg ( 15 Years Ago )

[quote][b]pegleg (1/12/2011)[/b][hr]. Like to see photos of the cam... By mctim64 ( 15 Years Ago )

Good thread guys! Steve, Thanks for the engineering graphs.... By Ted ( 15 Years Ago )

Very good stuff Guy's. I thought Royce mentioned there were no... By Y block Billy ( 15 Years Ago )

There was no wear pattern of any kind on either the lifter or the cam... By RB ( 15 Years Ago )

Thanks Royce. I think must of us are just grasping for something... By Ted ( 15 Years Ago )

I had a long talk we Vern Schumann today and the subject of Jerry's... By John Mummert ( 15 Years Ago )

[quote][b]John Mummert (1/14/2011)[/b] If you are using .502" OD... By DANIEL TINDER ( 15 Years Ago )

[quote][b]DANIEL TINDER (1/15/2011)[/b][hr]John/Ted, Since... By Ted ( 15 Years Ago )

John . Thanks for the input. I have never seen a flat... By Ted ( 15 Years Ago )

Thanks for the clarity John, Now I am wondering if it wouldn't be... By Y block Billy ( 15 Years Ago )

[quote][b]Y block Billy (1/16/2011)[/b][hr]Thanks for the clarity... By DANIEL TINDER ( 15 Years Ago )

And babying the motor until some guide wear is realized likely not... By DANIEL TINDER ( 15 Years Ago )

Jerry C took the heads to R&R Performance in Spring Lake Park MN.... By RB ( 15 Years Ago )

Royce . Was it an intake or exhaust lifter that broke? Just... By Ted ( 15 Years Ago )

Ted, I checked with Jerry and it was an intake valve that had the... By RB ( 15 Years Ago )

That is a :crying: picture. Doubt if it is possible but sure hope... By 46yblock ( 15 Years Ago )

Agree that it is a fresh break, also a break as such would not have... By Y block Billy ( 15 Years Ago )

Royce, I would be curious to know what the actual guide clearance on... By John Mummert ( 15 Years Ago )

John, the clearance on the guides varied from .001 to .0013. Jerry had... By RB ( 15 Years Ago )

Royce . Pass on to Jerry that I worked on an early model... By Ted ( 15 Years Ago )

Further on lifter failures; the latest issue of YBM, issue #102,... By PF Arcand ( 15 Years Ago )

No evidence of valve hitting piston when we pulled the head and no... By RB ( 15 Years Ago )

Royce, ain't no how, ain't no way I would bolt those heads back on... By John Mummert ( 15 Years Ago )

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