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Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Mon Feb 04, 2019 10:20 am
by JWalters
Another good tip from Herm on the old forum

By Kohnke Rebabbitting on Friday, August 31, 2012 - 05:25 pm:

"WE are not talking about cam ground lifters, you will never see those in a early Ford, as T's, A's, or B's.

This is what I have been talking about, why New, or used lifters have to be Butt! I have heard a lot of comments about Adjustable Lifters don't keep there settings, this is why. The high spots wear off, and the gap opens up.



Every Lifter I have ever had, was like this.



No. 1 lifter, .002 off, not done!

No. 2 Lifter, .002 off, not done!

No. 3 Lifter, Not Touched yet!

No. 4 Lifter Finished, both ends!



When you butt the bolt end, don't forget to tighten the lock, if it is that type!




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By Kohnke Rebabbitting on Friday, August 31, 2012 - 08:34 pm:

We Butt Lifters, valves, some push rods, and rocker Arms.

We use a valve grinder for Valves, lifters, rocker arms.




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By Kohnke Rebabbitting on Friday, October 04, 2013 - 05:58 pm:

I Butt both ends of a set of Model T lifters today and took some pictures of both ends.

I made 3 passes on the stone and took a picture showing valve end, and Cam end.

This is not unique to any lifters, valve surface, valve Butts, ring gap, ect.

It is up to the builder, and or the mechanic to check these parts for touch up.

This is why some have had lifters go out of adjustment and have had bad wear patterns on cam and lifters.




You can't expect much when high spots have to be worn off.



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By Kohnke Rebabbitting on Saturday, September 01, 2012 - 02:19 am:

These kind of lifters are always, and have always been ground flat. The whole point of the post has been to show that they are not, none of them, no matter what brand. Just like Aluminum pistons used to have expansion slots in the sides, and now some don't. Not because it is better, but because they are cutting labor cost.

Valves are never ready to use out of the Box, they should always be ground, they are not meant to be, I don't know of any good machine shop that will grind a seat, and just drop a valve in without facing, and Butting. Just face a valve, and drop it on a steel bench, or a floor, and then stick it back in a grinder, and see what it does. That kind of damage could have happened before you got the parts, and often does.



A good rule of thumb is, if it isn't your work, check it, and if it is your work, check it a second time!

You have to keep in mind that these were cut off on the bottom, before hardening with a cut off tool, which is why they show that kind of marking on the bottom, and are not true.

I am sure, probably 99 percent of all T, A, and B lifters were put in as is, and many sets of piston rings, without gaping. I have always said, engines will still run wore out.

Just depends what you are Satisfied with!




By Kohnke Rebabbitting on Thursday, October 03, 2013 - 11:52 pm:



1. Lock nut lifters are made at Bob's in Rockford, Il., they are the only lock nut type, and are the best.

2. All lifters have to be Butt on both ends.

3. Don't Mutilate a block by shorting tower height, they don't have enough wear surface to begin with.

4. Adjust the valves without the valve springs.

4.-A. You do NOT need to use three wrenches on the lifters if at first you wire wheel the bolt threads, and oil them.

5. Point the cam toe straight down, toward the pan rails, before adjusting.

6. Use a small light spring and put the valve through it and put it in the block.

7. The lifters should have a sticky wheel bearing grease on them on the lifter body, as it helps to hold the lifter up while pushing the lifter body sideways with the wrench. Adjust the lifter, and push down the valve and check the clearance, repeat until the gap is right.




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Lifters Butt, on both ends



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Valve up out of the way, just got done adjusting first valve lifter.



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Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Mon Feb 04, 2019 10:09 pm
by RBrooks
A spring under the valve is a good idea for setting clearance I like it!

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Tue Feb 05, 2019 2:12 pm
by bobster1
Great advice, thanks for sharing this great knowledge!

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Tue Feb 05, 2019 4:52 pm
by modernbeat
Are you grinding them flat, or crowned? That whetstone suggests "flat".
Flat would be much easier, and if you haven't found any issues with them, I'll follow suite.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Tue Feb 05, 2019 7:56 pm
by kelly mt
I followed this advice on my last three motors. The new adjustable lifters had a tit in the face of every lifter and the bolt head were not flat or square. I ground the surfaces in my Black & Decker valve machine and as Herm says they stayed in adjustment and the cam lobe looks real good. BTW, they were ground flat.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Wed Feb 06, 2019 9:41 am
by JWalters
modernbeat wrote:
Tue Feb 05, 2019 4:52 pm
Are you grinding them flat, or crowned? That whetstone suggests "flat".
Flat would be much easier, and if you haven't found any issues with them, I'll follow suite.
Flat

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Wed Feb 06, 2019 9:48 am
by Charlie B in N.J.
Wow. The bolt heads too. Something learned today.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Wed Feb 06, 2019 11:58 am
by JEC
I don't understand the use of the word "Butt" in reference to machining surfaces.
Can one of you guys explain it for me?

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Wed Feb 06, 2019 3:33 pm
by Kohnke Rebabbitting
modernbeat wrote:
Tue Feb 05, 2019 4:52 pm
Are you grinding them flat, or crowned? That whetstone suggests "flat".
Flat would be much easier, and if you haven't found any issues with them, I'll follow suite.
The Stone was used " Only " as a flat surface to stand the lifter on to take a picture. Grinding was done with the valve grinding attachments.

Thanks,
Herm.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Wed Feb 06, 2019 4:10 pm
by JWalters
JEC wrote:
Wed Feb 06, 2019 11:58 am
I don't understand the use of the word "Butt" in reference to machining surfaces.
Can one of you guys explain it for me?
Both ends of the lifters are ground completely flat and exactly 90 degrees from the stem.
lifter butt.jpg
lifter butt.jpg (5.63 KiB) Viewed 10121 times

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Wed Feb 06, 2019 11:34 pm
by TFan
In my experience we would call that faced. Jim

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Thu Feb 07, 2019 2:32 am
by Kohnke Rebabbitting
TFan wrote:
Wed Feb 06, 2019 11:34 pm
In my experience we would call that faced. Jim
You Face the Valve head, and Face the seat, and butt the valve stem.

Herm.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Thu Feb 07, 2019 11:14 am
by TFan
I'm just talking general machining not just valves. Jim

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Thu Sep 09, 2021 7:22 pm
by TXGOAT2
Just about every used lifter I ever looked at had the circular pattern on the cam end. Some were concave, which usually means a junk cam. I take it from the pattern being so common that most all lifters rotate while in service. I'm not sure that the valve spring wouldn't impart some torque to the valve and lifter on flathead engines as the valve operates. Most pushrods on OHV engines rotate, too.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Thu Sep 09, 2021 8:48 pm
by Dan McEachern
I considered Herm a good friend but something I did not agree with him on was grinding the face of valve lifters on a valve grinder. Lifter faces are ground on a special dedicated tappet grinder that forms roughly an 80" - 100" radius on the face of the lifter. This radius allows proper contact between the cam lobe and the tappet face. Out of respect for Herm and not wanting to start a forum war, I chose to be silent on this subject until now.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Thu Sep 09, 2021 10:34 pm
by Shannon_in_Texas
Dan, I have no machinist knowledge so forgive my ignorance, but how would cutting this radius be done by a shop without the dedicated tappet grinder?

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Thu Sep 09, 2021 10:53 pm
by Scott_Conger
Dan

I agree with you but wonder if it is really a "new" standard which is combined with tapered cams in later flat-tappet engines?

This leads me to wonder:

a: are Stipe/Chaffin/Carneghie cams taper ground?
b: what was Ford's original drawing feature tolerance/flatness callout?
c: with such low valve spring pressures in our cars, and the really poor/inconsistent finish on new tappets (which seem to see some level of success, as I cannot recall even the first cam failure thread on the forum), is it even worth worrying about in our cars?

I pose these questions not to be argumentative, but to better understand the difference between, good-enough and really-the-cat's-a$$ level of rebuilds for our engines.

Always hoping to learn something new, and sometimes accidentally do ;)

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Fri Sep 10, 2021 9:41 am
by TXGOAT2
I don't think a truly flat lifter/cam interface will hold up in an engine that runs at higher speeds with more aggressive cam profiles and higher valve spring pressures as compared with a Model T engine. Exhaust valves typically open against higher pressures in more modern engines, too. Most early style lifters had a mushroom shape with a large surface running against the cam and a fairly small diameter "stem". A lifter designed to have a positive rotation would probably need a larger diameter stem or have a barrel-like shape, like most modern lifters and those used in the later Ford flathead V8s to prevent lifter bore wear.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Sat Sep 11, 2021 4:24 am
by Wayne Sheldon
Thank you Dan McE, me too.
Herm K was a tremendous asset to this forum.

Re: Pictures of why "ALL" lifters have to be Butt, New, or Used!

Posted: Tue Sep 14, 2021 9:08 am
by Kevins29truck
The Model A had a butt ground lifter but it also had an oil hole picking lubrication up from the lifter galley directing oil directly on the lobe. Adjustables do not have that design so they must lubricate the lobe through a radiused lifter.