| Author |
Message |
Ted Calvert (Chowbus) (64.12.102.37)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, August 18, 2001 - 9:25 am: | |
Good Morning!
Do any of you DD wrenches have any advice for cleaning the lubrication system of a 6-71 which has been contaminated by coolant? "DA BOOK" says to run a 2-1 mixture of butyl cellosolve & 10 wt. oil but NAPA doesn't know about butyl cellosolve.
I think I found the source of the leakage. The oil cooler was missing a gasket! But it had a lot of RTV! A piece of machinery can suffer from a lot of "improvisation" in 40+ years.
Thanks.
Ted Calvert |
Geoff (64.1.5.47)
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Votes: 0 (Vote!) | | Posted on Saturday, August 18, 2001 - 2:28 pm: | |
The procedure for a Detroit contaminated with coolant in the oil is to drop the pan and inspect the crankshaft for damage while you replace the rod and main bearings. Other than changing the oil filter and oil when you are done, the only other thing you can do is remove the valve covers and governor cover to wash off the milky deposits under the covers. |
FAST FRED (63.215.228.222)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, August 19, 2001 - 6:55 am: | |
IN truck magazines I have frequently read of truckers having new main and rod bearings installed , sometime mid life in the engine.
IS this a worthwhile procedure for an 8V-71, that has 100,000 miles and for which I have great hopes of getting to the 250,000 mile mark?
How many hours of shop time and dollars of parts is this type preventive maint likely to cost??
FAST FRED |
Ted Calvert (Chowbus) (192.132.225.130)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 17, 2001 - 9:44 pm: | |
Thanks to all who responded with advice. I'm sorry I didn't thank you sooner. I did write a post on 30 Aug., but screwed up posting it.
Problem turned out to be a split injector tube, and in the process of changing it discovered a crack in the head! Got a N.O.S. head, ground the valves, and put it all together. Took a 1500 mile test drive, all's well, 10 mpg., 1 gal oil.
Governor & injectors not set up right, not getting usual power, but we'll fix that.
Local D.D. shop had butyl cellosolve.
Fred: I don't know enough to answer your question as to the effort- and cost-effectiveness of new bearings, but on my straight 6 it's not a lot of work. Probably a lot less than on a car! The in-frame rebuild kit(liners, pistons, rings, main & rod bearings, gasket set) was $695 for 6-71.
Happy trails.
Ted Calvert |
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