engine question
Thread Starter
|
Senior User
Joined: Jun 2006
Posts: 164
Likes: 0
engine question
ok important thing to know for certain because i really dont know which engine is in my truck its an 85 f250 xl but i really dont know which engien it is i am used to small japanese engines, so this is just a big diesel to me so far. what do i look for to tell the engien difference?
Fleet Mechanic
Joined: Sep 2005
Posts: 1,509
Likes: 3
From: Ladner, British Columbia
If it painted gray, rattles and smokes than most likely you got the 6.9l Ford Diesel. The Engine is actually a International diesel engine Ford started using in their pick-up trucks in 1983.
It is a bullet proof engine that will last you a long time. A lot of guys I know have run them for 400k to 500k without any major work needed. Change the oil and filters and drive.
They can have a few issues with cold starting, just post your problems and somebody will help you figure out what needs fixing.
What is your tranny (std or auto)? Both trannies in the 85 were good trannies.
Seb....
It is a bullet proof engine that will last you a long time. A lot of guys I know have run them for 400k to 500k without any major work needed. Change the oil and filters and drive.
They can have a few issues with cold starting, just post your problems and somebody will help you figure out what needs fixing.
What is your tranny (std or auto)? Both trannies in the 85 were good trannies.
Seb....
Thread Starter
|
Senior User
Joined: Jun 2006
Posts: 164
Likes: 0
well it might have been gray at some point but its black and oil now it smokes but it has/had a blown head gasket which i am fixing right now.
and its an automatic
any other identifying marks?
and its an automatic
any other identifying marks?
Last edited by Learath; Jul 20, 2006 at 01:54 PM.
Fleet Mechanic
Joined: Sep 2005
Posts: 1,509
Likes: 3
From: Ladner, British Columbia
Look for an identifier tag on the drivers side rocker cover. Maybe it is still there under the oil and grease.
If your engine is a V8 Diesel it would definetely be the 6.9l International Engine as that was the only diesel Ford offered in their pick-up trucks in 1985.
Your transmission would be a C6 which is generally highly regarded as a very reliable transmission.
Hp would be around 170 Hp with 315 ft-lb of torque.
If your engine is a V8 Diesel it would definetely be the 6.9l International Engine as that was the only diesel Ford offered in their pick-up trucks in 1985.
Your transmission would be a C6 which is generally highly regarded as a very reliable transmission.
Hp would be around 170 Hp with 315 ft-lb of torque.
Posting Guru
Joined: Sep 2002
Posts: 1,897
Likes: 0
From: Northeastern Pa - USA
someone may have changed engines before you bought it but ... as long as you have the head off, you can look at the head bolt, the 6.9 head bolt is 7/16 bolt about 5.25 inches long and the 7.3 bolt is 1/2 " thick and 6 inches long.
the 7.3 heads have a strength rib where the lower head bolts go thru. It looks like it is used to contain water near the head bolt.
it should serve you well with a good maintainance program. be sure to use coolant additive to prevent cylinder wall erosion ... napa calls it napaCool and caterpillar calls it nalcool.
the 7.3 heads have a strength rib where the lower head bolts go thru. It looks like it is used to contain water near the head bolt.
it should serve you well with a good maintainance program. be sure to use coolant additive to prevent cylinder wall erosion ... napa calls it napaCool and caterpillar calls it nalcool.
Thread Starter
|
Senior User
Joined: Jun 2006
Posts: 164
Likes: 0
well its definatly a 6.9 then. cylinder wall erosion? coolant pasages from the inside? there wasnt any antifreeze in it and lots of rusty water probably not to far along 
i hope i will take not of that when it works again.
i hope i will take not of that when it works again.
Thread
Thread Starter
Forum
Replies
Last Post
TruckDoggy
1987 - 1996 F150 & Larger F-Series Trucks
18
Jan 22, 2013 01:10 PM
F250_
1999 - 2003 7.3L Power Stroke Diesel
22
Jul 9, 2008 03:15 AM
