Antique Engines and Old Iron
[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Antique Engine Community > Vintage Diesel and Oil Engines
Forgot Password? Join Us!


Vintage Diesel and Oil Engines Fairbanks Morse, Lister, Petter, Witte and other pump injected Diesel oil engines.

Vintage Diesel and Oil Engines

2-71 Detroit Diesel Spewing Oil From Exhaust

this thread has 21 replies and has been viewed 1867 times

Thread Tools Display Modes
Old 09-25-2018, 08:49:44 PM
Phil P Phil P is offline
Join Date: Dec 2008
Location: Okeechobee, Florida, USA
Posts: 1,039
Thanks: 1
Thanked 634 Times in 316 Posts
Default Re: 2-71 Detroit Diesel Spewing Oil From Exhaust


We had a 4-71 that hadnít run for years. When I first started getting it ready to run I found it had a stuck injector.

When I removed the rocker cover to fix this I found the unit had apparently been overhauled installed and test run but never started again.

After the startup it ran well but dribbled oil out of the exhaust pipe so bad we had to put a bucket under the exhaust to catch the oil.

It was on an 8,000 gallon a minuet irrigation pump so we hooked an 80 gallon fuel tank to it and cranked it up to 2,000 RPM running the pump. We only shut it down twice a day to check oil.

Other than that it ran 24 7 for 2 weeks it no longer uses oil.

Phil P
Reply With Quote
Sponsored Links
Old 09-26-2018, 10:04:37 AM
miltruck miltruck is offline
Join Date: Apr 2009
Location: nh
Posts: 165
Thanks: 7
Thanked 29 Times in 23 Posts
Default Re: 2-71 Detroit Diesel Spewing Oil From Exhaust

Another thing I just thought of is what is the temperature of the coolant in the engine when you are running it? Detroit's don't like to be cold, they run best at 170+ to 190 degrees @ the water outlet (thermostat housing). Running without a load, the engine most likely will never hit the thermostat rating. All that air blowing through the engine makes it act air cooled. Use one of the handheld touch less temperature units (cheap at Harbor Freight) to see what the various areas around the engine are at.

You could try removing the fan only and just run the water pump or block off the air flow through the radiator as an experiment.

And as stated a couple of times before, a good load on the engine would help immensely. Anyway you can do that? We bought a 30kw 100,000 btu 3 phase portable heater off Craig's List for cheap money ($100) to load and test our 2-71 30kw unit. Runs as if nothing is even hooked up but does also jump the coolant temps right up there fast. Fuel use also goes up; about 2 to 2.5 gallons per hour under load.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Detroit diesel / GM diesel engine MatthewT Vintage Diesel and Oil Engines 11 07-17-2017 05:46:51 AM
371 detroit diesel lawnsbylane Multi-Cylinder Stationary Engines and Power Units 4 04-01-2013 09:13:38 PM
Detroit Diesel Elec Power DDC25U with Diesel Perkins Engine Manuals? MP5ForTheWin Generators & Electric Motors General Discussion 4 08-14-2012 12:34:30 AM
Help With a Detroit Diesel 6-71 wild800 Generators & Electric Motors General Discussion 20 01-13-2012 10:22:11 PM
Tecumseh HS-50 Spewing oil! Help? bluedeacon Small Air Cooled Gasoline Engines 18 12-10-2011 06:37:16 PM

Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 05:57:21 PM.

Smokstak and Enginads site search!

All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2019 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277