Inherent problems with 1984 Diesel engine?
Thread Starter
|
New User
Joined: Nov 2009
Posts: 2
Likes: 0
Inherent problems with 1984 Diesel engine?
I'm considering buying a 1984 Ford Econoline 350 XL Class C RV with a rebuilt diesel motor - not sure what kind - It has a leaking head gasket but is not leaking into the engine, just leaking out radiator fluid. The diesel was 'overrevved' at 45,000 miles and rebuilt. It now has 50,000 or so on the engine (95,000 or so on the RV) and developed the head gasket prob recently. My question is: what kind of problems am I getting with this engine? Is the head gasket part of a factory flaw? Or would that have been taken care of during the rebuild and this is something new? What is the worst case scenario with this head gasket?
Thanks!
Thanks!
Hotshot
Joined: Feb 2004
Posts: 11,697
Likes: 3
From: Marengo, Iowa
What typically causes head gasket problems on these is oil vapors from the CDR valve, which does the job of a PCV valve. The back cylinders get the oil from this, making them run hotter, stretching the head bolts, and burning out the head gaskets. Keeping the CDR clean takes care of this problem generally. It is the tin can looking thing on the backside of the intake. I don't see how it could have been over revved when the injection pump will limit how fast the motor can run.. The early 6.9 can possibly develop a crack in the block around the block heater if it gets used as the casting was thin there. Don't use the block heater there and there are no concerns about that. (As long as it isn't already a problem...)
Moderator
Joined: Jan 2001
Posts: 56,984
Likes: 2,738
From: Virginia
Make sure you have a 6.9. They may have swapped in a 7.3 which looks exacty the same, except the rebuilt 7.3's have sleeves in the cylinders. These are famous for sliding down and causing head gasket leaks.
Thread
Thread Starter
Forum
Replies
Last Post
Psychowolff1
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
13
Jul 27, 2015 12:31 AM
Psychowolff1
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
8
Jul 25, 2015 02:37 AM
genscripter
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
19
May 10, 2015 03:57 PM
MrMagic
1987 - 1996 F150 & Larger F-Series Trucks
3
Aug 18, 2014 06:30 AM
Ironpants
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
36
Apr 26, 2014 08:44 PM
