detroit diesel 8v92 questions

Yesss.

You and I can be friends.

Firstly. I guarentee its a silver.
Secondly, it sat for three years... And he just jumped in and drove it 40 miles.... #### dude, that's a red flag for me... It's one thing for me to buy trucks that have sat after I've had a chance to go through it first. It's another thing if someone else just cranks it and hammer down.

3.5 to possible 5mpg, no promises though.


I looked at a '79 FLC120 W/ 8v92, liked it for the retro style, guy sold it before I got back into town, but I'm glad, found my 3406B's while floundering.


Share some pics, what's the trade value?

 

If it been sitting pull the valve covers and check that the rack is free before starting it
antifreeze is probably low because the water evaporated out of it so it been setting a while need to check pH for corrosion
More than likely if the truck was parked for no other reason than they stopped running it I would do a complete fluid change and all filters and pull the wheels and change the seals before trying to pull your first load

If it starts and builds air and holds oil pressure I think you will be okay topping the fluids off to ease it to your shop to get it ready for the road I bought a 1980 Mack and drove 140 miles back to the house with no problems just checked it out real good made sure had clean fuel and spare filters and everything was full just took my time and it was fine

Ended up changing brakes seals fluids fuel transfer pump clutch linkage some air lines and some other minor stuff real nice truck that got a second lease on life

 

i can help a little. detroits love to sing, keep it pinned at 2400 or so, not sure what red line is but thye like to sing. could be lower gears to , odds are no lower(numercialy speaking) than a 3.73.

def want to see pics of this truck too

 

https://en.m.wikipedia.org/wiki/Detroit_Diesel_Series_92


Probably around 400hp I'd guess or 425

 

Hi flc, find someone with a front end loader, loosen the bolts, and dump that motor on the pile of all the other "ring-ding" Detroits, and put a real motor in there. Or better yet, just pass on the whole deal, and spend a little more and get something you can make money with right away. I've driven many older trucks with those motors, and they are worthless. 5 mpg, on a good day. and probably a gallon of oil per day. ( not to mention, where the coolant went) Unless you get the truck cheap, I'd keep looking.

 

Its worth that in scrap value. Go to FB - they're a lot of knowledgeable group pages, who can help you with this.

 

What, the motor, or the whole truck? The motor, I feel, is worth nothing. You never hear of anyone these days powering their truck with an old Detroit motor. ( not to mention, emission issues in some states)