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8V92TA Running Hot

John C.

Senior Member
Joined
Jun 11, 2007
Messages
12,870
Location
Northwest
Occupation
Machinery & Equipment Appraiser
What kind of antifreeze is in it? For a time there were a lot of issues with silicate drop out plugging passages in diesel engines. As far as intercooler plugging, are we talking about external plugging of the fins or internal plugging of the tubes? It is mentioned about intercoolers under the blowers. I don't recall seeing that but then again, I've never worked on 92s in trucks or gensets.
 

Coaldust

Senior Member
Joined
May 9, 2011
Messages
3,351
Location
North of the 60
Occupation
Cargo Tanks, ULSD, RUG, Methanol, LPG
The crappy part about the situation is even if it went to a shop, the average Zoomer or Millennial Tech isn’t going to know what to do. 1980 just called and they want their 8v-92 back. It’s going to take a crusty, scarred up, grey haired Dude with a bad back to figure it out. They are very unique engines.

I grew up with them, worked for a Detroit Dealer and went to numerous classes on the two-stroke. I still haven’t washed all the black, carbon fouled, 40wt low ash off my skin.
 

Truck Shop

Senior Member
Joined
Dec 7, 2015
Messages
16,965
Location
WWW.
It’s going to take a crusty, scarred up, grey haired Dude with a bad back to figure it out. They are very unique engines.

You just described me to a T, except I got rid of my two stroke tools along time ago. And I despise them.
 

1693TA

Senior Member
Joined
Feb 27, 2010
Messages
2,687
Location
Farmington IL
Occupation
FAA Radar Engineer, (Retired)
I've kept my specialty tools for these engines though not worked on one in years with anything major. Always found them easy to work on and if one was "in tune" with what they were working with, was a very easy series of engine to repair and maintain.
 

Coaldust

Senior Member
Joined
May 9, 2011
Messages
3,351
Location
North of the 60
Occupation
Cargo Tanks, ULSD, RUG, Methanol, LPG
I didn’t hang onto any of my Detroit stuff. It’s been a long time since I’ve done any major work on one. Especially a 92. The occasional fire truck or boat is the only place to run across them.
 

1693TA

Senior Member
Joined
Feb 27, 2010
Messages
2,687
Location
Farmington IL
Occupation
FAA Radar Engineer, (Retired)
I still have a 12V-71T, a 6V-92TA, and a 3-53 at my place so the need remains. Once I locate a decent 4-53 I'll repower my portable air compressor from it's current Continental gasoline engine too.
 

cfherrman

Senior Member
Joined
Jun 3, 2022
Messages
1,795
Location
Hays, Kansas
There is still a ton of these junk engines in the oil field but they don't last very long because I think the mechanics don't know what they are doing with them anymore, they used to last forever.

Still don't have any power we had one rig with a 6v92t 325hp and one with a l10 Cummins 260 HP and the l10 had more useable power, and would start at any temperature. That boat anchor of a engine made me a Cummins guy for heavy duty diesels
 

Vetech63

Senior Member
Joined
Aug 10, 2016
Messages
6,424
Location
Oklahoma
On all 2 stroke Detroit the torque curve is above 80% of the rated rpm setting. I don't know how many times over the years ide go out to one that was being run at half throttle with a complaint of weak power. Ide tell them to throttle it up to full rpm and it solved their power problem. They would scratch their heads not understanding that concept at all.
 

Coaldust

Senior Member
Joined
May 9, 2011
Messages
3,351
Location
North of the 60
Occupation
Cargo Tanks, ULSD, RUG, Methanol, LPG
4AE05577-3287-441C-AB4E-F7CAD858EC97.jpeg I appreciate the pure mechanical technology and love the sound and smell of a Detroit screaming. Don’t get me wrong. There is a service niche opportunity out there. Especially in the marine market for someone willing to work on them. But, there certainly isn’t a shortage of other stuff to repair. Why bother?

I’m going to ultrasound a tank. Meanwhile, the broken Detroit’s can stay broken.
 

Vetech63

Senior Member
Joined
Aug 10, 2016
Messages
6,424
Location
Oklahoma
My local Detroit dealer here won't even build the 2 stroke engines anymore. I was told by someone there in authority that they can't find trained people to do anything with them.
 

DMiller

Senior Member
Joined
Feb 21, 2010
Messages
16,573
Location
Hermann, Missouri
Occupation
Cheap "old" Geezer
Did my time floundering in carbon transferring oil and ignorant governors stick sensitive tiny parts requiring hand lapping, doing things no one could predict, 53s, 71s, 92s, not looking back and essentially gave away all my tooling to JY!!!!

Is a Reason they disappeared from NEW Use.
 

Truck Shop

Senior Member
Joined
Dec 7, 2015
Messages
16,965
Location
WWW.
He said HAIRED dude lol

Some guys have a head full of hair-and that's all the fack they got too.

As far as Detroit 2 strokes-It was a cheap engine to build and good in there day. But the two stroke days
are done, some just don't realize it yet. It consumes too much fuel, takes up too much space in V8 form,
Always was a dirty engine, plus is a contributor to noise pollution. And has a dire need to be run on the
governor.
Equipment manufactures liked them years ago because it was a cheap engine to power equipment, trucks
and boats. But the two stroke is nothing more than a filthy pig wallering in it's own outdated/obsolete
pig sty.
 
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