Thread: Rear Main Seal -- leakleak..leak.
View Single Post
  #1 (permalink)  
Old 05-22-2009, 03:29 AM
PANAVIA's Avatar
PANAVIA PANAVIA is offline
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: San Jose CA, CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
Not Ranked     
Default Rear Main Seal -- leakleak..leak.
Ok, so i have a puzzle here , we have a 289 in house that is driving us nuts.

it is a 2pc rear seal, and it has been sleeved. (rear main) the sleeve is .08" larger than stock OD and we have tried stock type neoprene seals and a rope-graphite seal - and it still leaks.

Neoprene is inserted into clean channel with permatex 400 sealant.

-we checked crank case pressures and PCV setup and they are good, compression is 120psi on all cyls and leaks less than 5%. --so it is not blowby.

any ideas >?

--Steve
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
Reply With Quote