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My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 09, 2018 06:37AM

Since it seems to be lifter week here goes.

If I am incorrect on any of my observations please post, I have researched and this is the info I came up with:

First off the cam has a tapered lobe of approximately .23 degrees and to promote lifter rotation the lifter has a base circle in the 40"-60" radius area.

I measured a new Clarks lifter and it had a base circle slightly larger than 60" (60" should have a change from edge to center of .0033). The clarks measured .002-.0025 I was surprised at how inconsistent they were from lifter to lifter.

Here zero'd at the edge, held in vblock so lifter is perpendicular to surface plate.



Here is center height:



The lifters that were in the engine I am cleaning up, not rebuilding at this time, had lifters that were worn on the bottom. I figured that this would be the perfect engine to give this a try because it will not be my "final" engine for the car, just one to use this summer while I build the one I want over next winter.

There was a .007 pocket worn in the lifter, this would begin to impede lifter rotation.


So what I came up with was to use my surface grinder and spin indexer and recreate the profile on the bottom as well as I can with the equipment that I had. I realize that it is not a true radius, however if you were to use a CAD program and draw the arc and then a angled surface there surface deviation is quite close and WAY closer than the worn lifter bottom.

Here is the result:

I decided to stay close to the Clarks lifter measurement rather than my calculated .0033 incase I was mistaken on the lifter radius. My liter are much more consistent than the clarks with a .0003 deviation from edge to center.



I then chamfered the dedges and then took them apart as per the service manual and cleaned them. I found that oven cleaner softened up all the old oil deposits really well and cleaned off with a tooth brush. Rinsed well and cleaned again in acetone, oiled and reassembled.

I will report back on their performance when I get the engine running.

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: My take on original lifter reconditioning
Posted by: TheRealHip ()
Date: June 09, 2018 06:51AM

How did you check .0003 with a .0005 indicator?

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Re: My take on original lifter reconditioning
Posted by: Lane66m ()
Date: June 09, 2018 07:21AM

Tom:

Thank you for the lifter cleaning info. It is timely as I will be cleaning the lifters out of my Mouse House 110 next week. Most were stuck and would have acted like solid lifters.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 09, 2018 07:53AM

TheRealHip Wrote:
-------------------------------------------------------
> How did you check .0003 with a .0005 indicator?

Interpolation between the marks easily done, the point was very little.

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 09, 2018 07:56AM

Al,

I needed a puller to get the inner piston to come out due to the varnish on the inside.

I used one similar to this :



I have also seen on you tube a person using a 3/8 expanding concrete anchor to pull the inner piston.

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 09, 2018 10:31AM

Al, another tip is to remove the lock spring and metering valve than spray the top of the lifter with oven cleaner and let it sit 10-15 min then scrub with tooth brush, it will facilitate the removal of the piston because the top ring of varnish is removed.



-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: My take on original lifter reconditioning
Posted by: Lane66m ()
Date: June 09, 2018 01:08PM

Tom:

I did get my lifters apart on last Monday. It took a bit of work and mineral spirits to get them to start a springing action to get the clips out. I jammed a rod and paper towel into the inner cylinder. Then more work and mineral spirits to slowly work the inner cylinder up and down until I could grab it with a set of cannon plug pliers to turn it and pull it out slowly. They are all now sitting in a separator box filled with mineral spirits. When we get back home next week, they should be ready for some intensive cleaning.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: My take on original lifter reconditioning
Posted by: vairmech ()
Date: June 09, 2018 05:31PM

Tom, I know pictures attenuate any little detail but I would check the surface finish on your lifter. You may want to use a lot finer stone on the surface grinder. I don't know what the Ra is supposed to be but for a used cam I would go pretty fine.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: My take on original lifter reconditioning
Posted by: jjohnsonjo ()
Date: June 09, 2018 06:03PM

One thing I have I have seen is pitted check balls. I swapped them from lifters with other issues and it works. Never tried to buy new, they are probably available.

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

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Re: My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 10, 2018 05:05AM

Ken, The pictures make the finish look corser than it actually is. I used the finest stone I had, however, I will see if I can make a setup on the lathe to lap them to get even a better RA.

J.O., good point on the check balls. All of mine looked nice.

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 10, 2018 07:18AM

Went out and put a 25 micron finish on the bottoms, had to be close because took 30 seconds a lifter. Unfortunately now at computer realized,not the best pic. Its weird what the camera "shows" there are parallel lines in the picture that are not on the lifter.




-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY



Edited 1 time(s). Last edit at 06/10/2018 07:19AM by toms73novass.

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Re: My take on original lifter reconditioning
Posted by: toms73novass ()
Date: June 10, 2018 08:10AM

OK my camera is my last cell phone so it can only get so good. Here is a picture outside.



It should do the job. This once again is just for a unknown 110 that I will use this summer (it might be a good runner who knows). However, it definitely would be more prudent to purchase a new lifter with all the time I have in reconditioning these.

When I build my turbo motor I'm buying Kens HP lifters!

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block
86' BMW 325es
98' Dodge 2500 12v Cummins Diesel with 1200 lb torque!
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo

NFCC
Grand Island, NY

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Re: My take on original lifter reconditioning
Posted by: kenzen ()
Date: June 10, 2018 03:28PM

A small ultrasonic cleaner might have cut down on the cleaning time.
Ken

kenzen
66 Monza Coupe 110/PG
Bel Air, MD

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Re: My take on original lifter reconditioning
Posted by: vairmech ()
Date: June 10, 2018 06:42PM

That looks better!

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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