Thread: Boost leak?
View Single Post
mark houghton mark houghton is offline
Registered User
 
mark houghton's Avatar
 
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,776
My money's on the wastgate valve not seating entirely- carboned up seat and/or valve guide sticking up the works.
At idle, loosely stuff a wad of paper into the WG dump pipe, rev the engine a bit and see if the paper blows out. There shouldn't be any exhaust coming out of there unless you're on boost.
__________________
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 04-15-2010, 01:49 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)