Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > 911 Engine Rebuilding Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered
 
Join Date: Dec 2002
Location: Seattle, USA
Posts: 150
the cam sprocket shim BLUES

On my 2.2 rebuild, I placed the shims they way there were when I tore it down which was 4 on the left and 3 on the right. The right side is within .10 mm of the intermediate shaft which is good but the left side is off by a whopping 3mm after subtracting the 54.8 mm adjustment factor for the left. I took it apart once again to make sure the keyway wasn't jammed and to be sure the thrust washer had the bevel facing toward the cylinders.

Anyone have any idea how it could be that far off?

Old 07-27-2011, 04:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,505
Make sure your math is correct, off the top of my head is 54.8 and 51. make sure the cam is forward, put a screwdriver behind a cam lobe and force the cam forward. You should be doing all the measurments with the keyway put in place after the measurments are done. with it in place you have to remove the key each time you change the measurments.
Bruce

Last edited by Flat6pac; 07-27-2011 at 04:51 PM..
Old 07-27-2011, 04:43 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
Join Date: Apr 2007
Location: wisconsin
Posts: 2,553
Quote:
Originally Posted by Flat6pac View Post
Make sure your math is correct, off the top of my head is 54.8 and 51. make sure the cam is forward, put a screwdriver behind a cam lobe and force the cam forward. You should be doing all the measurments with the keyway put in place after the measurments are done. with it in place you have to remove the key each time you change the measurments.
Bruce
Researching old threads... my car seems to need an extra shim after rebuild. This is the only thread I have seen about moving the cam forward...

Is this SOP?
Old 08-18-2019, 01:30 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,505
When you tighten the nut. The cam moves to the nut. The screwdriver just helps the nut along.
Tighten the nut and do the measurement
Be sure the chain gear concave side is facing away from the cam.
Bruce
Old 08-18-2019, 03:28 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
Join Date: Apr 2007
Location: wisconsin
Posts: 2,553
Quote:
Originally Posted by Flat6pac View Post
When you tighten the nut. The cam moves to the nut. The screwdriver just helps the nut along.
Tighten the nut and do the measurement
Be sure the chain gear concave side is facing away from the cam.
Bruce
Thanks Bruce. Will work on it again next weekend...

And this is why a rebuild takes 2 years

Old 08-18-2019, 03:32 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Reply


 


All times are GMT -8. The time now is 12:25 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.