How to best modify Smith lifter?
 

Hola!
I'm moving over to a solid grind. New, milder grind. I would like to continue using my very low mileage Smith Machine low travel "composite-base" hydraulic lifters on this new flat tappet solid grind. The lifters have .015 travel.
Obviously the correct thing to do would be to purchase new lifters, but it's not the preferred option...today.

I prefer to run as is, or modify the Smith Machine lifters. $
So, option #1, Run as is and if so at what lash? (Cam grinder recommends .010" hot.)
Option #2, Shim plunger with .015" stainless shim material and leave check valve assembly in lifter. If so at what lash?
Option #4, no shim, no check valve so lifter does not fill and hold, and run as "take-up" lifter with zero lash (or less) so the face stays in contact with base and lifter compresses and bottoms .015" or so upon ramp-up. And if so, block oil feed hole or leave open?
Or different modification?

What works without banging the composite base into little pieces?
BBM 383

Thanks,
Gary

Re: How to best modify Smith lifter?
 

“What works without banging the composite base into little pieces?“

What works?...Tool Steep lifters with an edm hole.

This is a conundrum...a pay me now (very little comparatively speaking), or pay me later (a crap load). Your choice...been there done that.

Re: How to best modify Smith lifter?
 

I would want to know about what lash ramp that solid lift cam has. If you went to solid lifters, what does the cam grinder want for hot lash?


Stan

Re: How to best modify Smith lifter?
 

Hello, to make a long story short....THROW schubeck/smith lifters in the garbage can AND/OR sell them to someone you don’t like......Like Bill said....TOOL STEEL......He has been there and done that...l.

Re: How to best modify Smith lifter?
 

Option #2 is the way I would go.

16 grenades with the pins half pulled out...now that's another story. :(

Re: How to best modify Smith lifter?
 

with those lifters the fuse is lit and the bomb will go off, the question is when?

Re: How to best modify Smith lifter?
 

Just out curiosity why can’t you just take the inside spring,piston and out and just install the pushrod seat and retainer that’s all that a solid lifter has.

Re: How to best modify Smith lifter?
 

Won't work if you have pushrod oiling, nothing to meter the oil flow.

Jim Mantle V/SA 6632

Re: How to best modify Smith lifter?
 

You can. The pushrod seat (no pushrod oiling hole) bottoms on a shelf at .015". Whether or not it'll last...the jury says Boooom! And, there's plenty-o-proof to validate the jury.