DieselTalk

DieselEngineTrader's FREE Diesel Engine Forums

new topic search Categories login View Detroit Engines

CATEGORY LISTINGS > DETROIT > 12.7 fuel in oil [ REFRESH ]
Thread Title:

12.7 fuel in oil


Created On Wednesday October 21, 2015 09:59 Diesel Talk
Diesel Talk Forum

RW
Diesel Talk Forum
Posts: 2
Joined: Apr 2012

Note Wednesday October 21, 2015 09:59 View thread in raw text format
Diesel Talk
I have a reman 12.7 with 590K miles on it. Last year it started putting fuel in the oil. We put dye in the filters, then ran it with the valve cover off and watched it with a UV light. One injector was letting fuel in the oil worse than others, but they all were doing it to some extent. What we found was the injector holes in the cylinder head each had grooves worn where the O-rings sit (not the injector cups, the head itself). We tried a cheap fix by filling in the grooves with steel putty then sanding it down smooth with emery cloth. It lasted about 50K miles and the last oil analysis said there is 10% fuel in the oil. My question is, is there any machine work that can be done to fix these grooves, or is it time for a new head?
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

Brent
Diesel Talk Forum
Posts: 166
Joined: Nov 2011

Note Wednesday October 21, 2015 16:45 View thread in raw text format
Diesel Talk
Not worth messing with. New head time. Not sure what they used to clean the holes out with or how the groves got there. I usually take a 12 volt pump and pump fuel in the head while the engine is off. Usually its a injector come apart for me.
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
Diesel Talk Forum

westcoast
Diesel Talk Forum
Posts: 982
Joined: Dec 2008

Note Wednesday October 28, 2015 06:39 View users profile View thread in raw text format
Diesel Talk
Fletching in the counter bore - reman head Regards david

-------------------------
 detroit
Diesel Talk Forum
Reply Diesel Talk Forum Quote Diesel Talk Top Diesel Talk Forum Bottom Diesel Talk
Diesel Talk Forum
CATEGORY LISTINGS > DETROIT [ REFRESH ]
Adelman's Truck Parts Corp.
Adelman's Truck Parts Corp.
Big Bear Engine Company
Duncan Rogers (Engineering) Ltd
Duncan Rogers (Engineering) Ltd
Advertize on Diesel Engine Trader

Customer Testimonials

Newsletter

Subscribe to our mailing list to get all the latest DET news.as well as daily or weekly notifications of new engines, gensets and spare parts listings.

'Had a Toyota motor for sale in our city paper for 2 years without success, but on DieselEngineTrader.com I got a quick response and it was sold.. Thanks for your help. I'll use it again.'

Glenn Poidinger, Merik Workshops, Canada

'It took at least 4 weeks before we got our first inquiries for the 28 engines we listed - 3 months on we are making 3 to 4 sales per month! We're really pleased and I like the feature that shows how many views our engines get.'

Pete Melhuish, Northwest Diesel Parts, Portland, Oregon, USA

'Just want to say, I enjoy this site & appreciate the folks who put it together. Keep it going!'

Troy Kuntz, Texas, USA

Copyright Diesel Engine Trader 2015