Schubeck lifters

John Duzac · 10-25-2015, 10:48 PM

I have an old set of Schubeck lifters in one of my engines. They work fine. Then I built another engine and used Smith lifters and on the nInth run I broke two lifters, which caused severe damage to the block and 4 Pistons. From that moment on, Smith lifters was never to be used again. From now on I use tool steel coated lifters. They will not come apart and destroy the engine. I cannot imagine how anyone would take a chance on using a part in their engine that so many people had trouble with. Some people never have trouble with them.

shownote · 10-29-2015, 02:14 PM

Is it possible to go from shubeck lifters to tool steel coated and still use the same cam.

Dan Fahey · 10-29-2015, 02:56 PM

BTW what engines are breaking?

Is there a trend...?
A Chevy, Ford or Chrysler? BB, SB, Medium Block if that exists.
Which Engine seems to be breaking most often?

Do not think this is happening to Roller Lifters?
At least I did not hear of any so far.

Dan

bob shirley · 10-29-2015, 03:44 PM

I had one break in my lt1.made a mess

Alan Roehrich · 10-29-2015, 06:42 PM

Quote:

Originally Posted by shownote

Is it possible to go from shubeck lifters to tool steel coated and still use the same cam.

If the cam in question is a steel core cam, yes, you can. If the cam in question is a cast iron core cam, do not run DLC coated lifters on it.

GTX JOHN · 10-30-2015, 01:04 AM

The answer is I have heard of all brands and sizes of engines sometimes
have problems with Schubeck lifters. I think more problems with solid lifters than hyd. lifters. My hunch is the problem may be with the solid lifter unloaded from any preload while on heel of cam. I alway put a few thou
more preload than normal with Schubecks.

Larry Hill · 10-31-2015, 01:44 PM

Its been more relaxing this weekend driving a car with roller lifters, I'm not having to worry about idle RPM and oil splash.

10-25-2015, 10:48 PM	#1
John Duzac Member Join Date: May 2005 Location: Covington, La Posts: 311 Likes: 63 Liked 83 Times in 20 Posts	Re: Schubeck lifters I have an old set of Schubeck lifters in one of my engines. They work fine. Then I built another engine and used Smith lifters and on the nInth run I broke two lifters, which caused severe damage to the block and 4 Pistons. From that moment on, Smith lifters was never to be used again. From now on I use tool steel coated lifters. They will not come apart and destroy the engine. I cannot imagine how anyone would take a chance on using a part in their engine that so many people had trouble with. Some people never have trouble with them. __________________ John Duzac D/S 4448 STK

10-29-2015, 02:14 PM	#2
shownote Junior Member Join Date: Nov 2013 Location: sweden Posts: 3 Likes: 13 Liked 0 Times in 0 Posts	Re: Schubeck lifters Is it possible to go from shubeck lifters to tool steel coated and still use the same cam.

10-29-2015, 02:56 PM	#3
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,128 Likes: 1,084 Liked 184 Times in 113 Posts	Re: Schubeck lifters BTW what engines are breaking? Is there a trend...? A Chevy, Ford or Chrysler? BB, SB, Medium Block if that exists. Which Engine seems to be breaking most often? Do not think this is happening to Roller Lifters? At least I did not hear of any so far. Dan

10-29-2015, 03:44 PM	#4
bob shirley Junior Member Join Date: Oct 2006 Location: las vegas Posts: 53 Likes: 0 Liked 0 Times in 0 Posts	Re: Schubeck lifters I had one break in my lt1.made a mess

10-30-2015, 01:04 AM	#6
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,733 Likes: 2,799 Liked 2,485 Times in 697 Posts	Re: Schubeck lifters The answer is I have heard of all brands and sizes of engines sometimes have problems with Schubeck lifters. I think more problems with solid lifters than hyd. lifters. My hunch is the problem may be with the solid lifter unloaded from any preload while on heel of cam. I alway put a few thou more preload than normal with Schubecks. __________________ John Irving 741 Stock 741 Super Stock

10-31-2015, 01:44 PM	#7
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,640 Likes: 1,937 Liked 10,712 Times in 2,230 Posts	Re: Schubeck lifters Its been more relaxing this weekend driving a car with roller lifters, I'm not having to worry about idle RPM and oil splash. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817