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Old 04-02-2013, 12:08 AM
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eatont9999 eatont9999 is offline
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Join Date: Jan 2012
Location: Dallas, TX
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Originally Posted by barry12345 View Post
Sorry I also knew you were on regular diesel currently.I was just trying to correct the waste motor oil versus wvo issue.

I still think now that if you have never checked the injection pump timing since aquiring the car. Previous owner or owners may have retarded the timing to cover up the number four cylinder issue would not suprise me. If so should be an easy fix. Hopefully that will be all of it.

.I also do not think either that putting only seventy gallons of used motor oil through has particualrily had any negative effects. Other than perhaps some carbon buildup.

I agree. My next step will be checking the timing. I prefer a few degrees advanced timing in my Diesels. I tend to see better performance and a more complete burn of the fuel. Maybe it is compensating for years of wear and timing stretch but I do notice an improvement within a sweet spot. Obviously, over-advanced timing does not benefit but a few degrees seems to help.
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
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