detroit diesel 8v92 questions

You'll find the 8V92 in a lot of fishing trawlers. Find some old clammers, oystermen and / or fishermen, and you'll find some worthy mechanics for that engine.

 

Hi NM, when I bought my 1st truck, a '82 Western Star, single sleeper conventional, it had the White equivalent to the Reyco. ( with that square tube in the middle, and I ran it about a month in Chicago pulling rail cans, and after the 2nd leaf broke, I said, that's it, and cut the back off behind the sleeper and put the back half of a Peterbilt with a Pete Air Leaf from a junkyard. VOILA! After that, that truck was actually a really nice truck. Made money with it, and the best part, no more broken springs. Reyco had a bad axle hop around 45 mph, if a bump would set one axle off, it went to the other axle and would shake the truck to pieces. Doors and hoods rattle on spring ride trucks, and I used to slam a log book in the door, to keep it from rattling. ( we never cared about logs back then)

 

As I said it's been years.... too many I guess.
Get a radiator pressure checker fill it with water and check it.
Several here to choose from
http://www.amazon.com/s?ie=UTF8&page=1&rh=i:aps,k:Radiator Pressure Tester

 

I'll call 445 hp stock as a T/A. They love Delo oil too. Only stuff that stays in them. Should be a cable to the dash marked "Emergency" , That's not a parachute, it's an air kill flapper to keep it from running away.

Don't dog it like a dog and don't lug it, keep it high and tight but not at 2400 either. Power band is real tight like 1750 to 1950. She will pull down to about 1500 and then die. Check the oil daily...expect leaks, they all do.

It will also run backwards, don't let it lol....its real fun to see smoke coming from the air cleaner.

Don't idle it long either...fills air box with oil and don't let it sit there and hunt either. Their good motors if you take care of them but they wont touch a 3408 or a V8 Mack. Wont touch a series 60 either but.....are you racing?

They don't like cold weather either....hunt and rattle when cold. I've seen them idle at 2 lbs oil and run 38 to 42 depends on internals.

No CA either and yes easy $1500 on the marine side as salvage.

Good luck and have fun with it.

jmo

 

Remember, because the 92 series are 2 cycle, they'll sound like they are turning twice as fast. At 1500 rpm, there will be 12,000 combustion cycles as compared to 4,500 for a Series 60. That, not necessarily the revs will make it sound like it is screaming.

Unless the rear ends were changed, they're not likely to be better than 4.11. In 1979, the national speed limit was 55, and you didn't ”gear fast, run slow” yet, especially with Jimmies.

 

I was told to drive an old Detroit like you were pissed off at it, or slam your finger in the door, to get in the right frame of mind. I drove a Louisville Ford with a 238 in it, and after a long run one day, I came back, and parked it in the shop, next day, came in, my truck was gone. I asked the mechanic, where my truck was, he said, it's at a repair shop getting a new motor in it. Apparently, after I went home, they changed the oil, and when they started it up, it threw a rod through the side of the block.
Marine application, beautiful. No hills out on the high seas.

 

180 on the temp.....and no, hunts all the time if gov weak or rack out of adjustment. Simple fix though.

Other cool stuff you can do also. I had a 238 making 300 and pulling 45 k payload at 70 with mods with 4.11's and a 9513........but the rad was too small and I burned it up in a hard pull.

The Yamaha will rap 2150 but there's nothing up there to pull with. 2 cycle power band is tight, you need close ratio gears and steep rears. Yamaha's bite in the dirt too .

It's a constant speed motor...doesn't like up down...last forever behind a generator.

 

Double breasted Yamaha....

 

There's a '79 FLC with one under the hood on craigslist here in TN. I'd grab it if I had some playin' money right now just to be different from the Pete crowd.