junkfixr
New Member
- Joined
- Mar 3, 2010
- Messages
- 82
- Reaction score
- 0
- Points
- 0
- Location
- Virginia
- Vehicle Year
- 1987
- Make / Model
- ford
- Engine Size
- 2.9
- Transmission
- Automatic
I just got an '88 with a 2.9. The previous owner put World heads on, crank & rod bearings. He said the bearings were .010 over and the cylinders were nicely crosshatched, leading him to believe it was recently rebuilt or a remanufactured block. The compression is good on all cylinders but if you pull the PCV out while it's running, it has excessive blow-by from there and around the dipstick. The only work I've done was to replace the fuel system (tank, pump, filter) and I adjusted the noisy lifters by the book.
Any thoughts on what could cause the blow-by? I'm thinking rings or possibly (but doubtful) a restricted exhaust.
Another issue is a leaky rear main seal. Can that be replaced in the truck or am I looking at pulling this engine?
Any thoughts on what could cause the blow-by? I'm thinking rings or possibly (but doubtful) a restricted exhaust.
Another issue is a leaky rear main seal. Can that be replaced in the truck or am I looking at pulling this engine?