Go Back   The Supercar Registry > General Discussion > Technical & Restoration


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #23  
Old 08-11-2016, 09:28 PM
L78steve L78steve is offline
Senior Member
 
Join Date: May 2006
Location: Hendersonville NC
Posts: 944
Thanks: 7
Thanked 33 Times in 30 Posts
Default Re: Lifter re-ginding or turning

The taper ground into the lobes is for lifter spin. I may have a secondary effect of pushing the cam back I don't know.
The reason I believe this is that every cam (flat tappet) Ive installed with a button never made any contact with the cover after disassembly many runs later. The clearance set was the gasket thickness. So I have assumed the cam was held rearward by pump load.
Roller is another issue the plate is needed for insurance that the cam will not walk.
Don't mean to be a PITA just info gathering.
Also i have seen blocks run with high pressure pumps worn from the cam gear contact surface.
Pumps put one hell of a load on the cam gear. You can feel it when pre-lubing. Also oil pumps are loaded weather spinning up or down in RPM.
__________________
"Knowledge is good" Emil Fabor
67 L/78 Camaro SS/RS H-H,1W,2LGSR,3SL,4K,5BY. (Sold)
70 L/78 Nova M-21,Black Cherry,Sandalwood Int.
09 Pontiac G8 GT Premium,Sport,Roof. Liquid Red.
Reply With Quote
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 10:51 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.

O Garage vBulletin Plugins by Drive Thru Online, Inc.