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Old 01-28-2004, 07:04 PM
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???about new rebuilt engine???

I have just recently rebuilt a 350sb engine about a mounth ago and really havent broke it in good cause i had the wrong torque converter in and it was bogging bad,so i changed that and had to tune the engine .. i would say it has less then 30 miles on it and the question i have is i just changed the oil and filter and at first when i took the plug out it had a grayish tint to the oil at first ,and then it looked ok.. i have a magnet oil plug and it had some stuff on it like very fine metal,but when i rubbed it between ,my fingers it wasn't hard , just very fine.. and it wasent much. so my question is , is this normal.. the guy at the machine shop said it is cause i havent broke it in good yet.. every thing in the engine is new, even the heads are new, the cam is a hyd roller. everything runs good and oil presure is good . so what do ya'll think??? robbie

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Old 01-28-2004, 07:16 PM
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Well im no expert engine builder but heres my input,

It could be water from the cooling system leaking through into the combustion chamber which would be caused by an improperly set gasket seal such as head gasket.

Water in the oil would form a real milky color but im not sure it would be the first to come out when draining the oil. Ummm remedy or real cause?
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Old 01-28-2004, 07:18 PM
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robbie i also have a recently rebuilt 350 hyd roller motor what you see in your oil is normal and you will see it for an oil change or 2 more dont worry about it
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Old 01-28-2004, 09:19 PM
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its not water in the oil, i know what that looks like. the oil still looked kinda new after the first part drained out. i agree with you knuckles, i believe it will be ok.. it just looks like a little wear from breaking it in, but just wanted to ask to get a second opinion. im going to drive it on the interstate tomorrow to put some miles on it. thanks
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Old 01-28-2004, 10:10 PM
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Thumbs up

Assembly Lube perhaps....i had the same thing in my 400..it was just lube...good luck
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