400 died
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Senior User
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400 died
I've had this motor for 2 years, about 18,000 miles, and it spun a bearing and the grindings got into the cylinder and scored them. The thing is, that is has been bored .60 over already and cant really do anything with it. I dont know why the bearing spun I drive it pretty dang nice but I've gotten on it a few times to, it would burn tires like nothin. Funny thing is that it still idled fine and would drive fine, but had the loudest knock ive ever heard in my life. Even when i backed it into the shop so we could check it out it left black marks on the floor by accident. hehe The place we got it from said that they wont give us any warranty cause they said it was the drivers fault for over reving and so on. but its only been really over reved like 1 time and that was a year ago, i dont know, bad day 
haha
haha
Postmaster
Joined: Aug 2001
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From: Delaware
Where did you get it? Some rebuilders just take parts out of a bin when doing a rebuild. Many of those parts are never inspected. They are just cleaned and used over. Many parts do not match. Who would sell a .060 over block?
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We have bought 2 motors from them and one has been excellent, it is in a 77 F-250 Hiboy and that one has been put through hell, it has spent full days driving along in 2nd gear spraying fields and bogging threw the low spots, but this other motor i dont know why we got a .060 over block we didnt even notice it was til now, i mean it ran awesome, always started easy, I would haul bails with it on some weekends when i wasnt in school, but im pretty sure it was all new parts, maybe I can get a new block from them since i brought in a core that was original with 250,000 miles, jeez i wish i wouldve kept that.
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Well I found a new block. I figure ill just build this one from the parts that are not shot in the other one, and maybe even be a better motor than before. well i hope so anyway this 2 years life was horrible
Postmaster
Joined: Aug 2001
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From: Delaware
If you are not too far from Fairmont, MN, you should check with Tim Meyer. I am sure that he will do the best motor work that you can get for your money.
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well we found out why the bearing spun, the fuel pump was leakin gas into the oil, and it just ate away the block and it finally just went out, i ended up goin back to the place we got it and its a small place they dont just throw them together like you guys might of been thinking. For now on im gona keep a close eye on that I feel kinda dumb that gas got into the oil better start smellin it or somthing 
, but I got my new engine today and its goin in tomorrow
, but I got my new engine today and its goin in tomorrow
Posting Guru
Joined: Aug 2000
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From: PacNW
Fuel leaking into the oil doesn't hurt the block in and of itself. The problem is that the fuel dilutes the oil and causes it to lose it's film strength which allows metal to metal contact between the crankshaft & bearing surface. Once the contact point builds enough friction the torque on the bearing causes it to spin inside the saddle.
It's not that uncommon for that to happen due to the design of the mechanical fuel pumps. Usually you can tell when you pull the dipstick out and the oil level is over the full mark. And you're correct, it will smell like gasoline.
It's not that uncommon for that to happen due to the design of the mechanical fuel pumps. Usually you can tell when you pull the dipstick out and the oil level is over the full mark. And you're correct, it will smell like gasoline.
Fleet Mechanic
Joined: Feb 2004
Posts: 1,508
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From: Arlington,Wa
Ohhh yeah.....I learned that trick the hard way myself. Definetely want to change the oil if your fuel pump leaks. I know I could have got 200K out of the 351M....but she started knockin at about 186K. The rest is history.