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03-21-2019, 07:48 PM | #1051 |
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Re: H-I-J '76 Nova re-fit.
Looking at that picture of the bad bearing one side appears to be more worn than the other side that is from left to right do all the others have the same wear pattern???
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03-21-2019, 08:57 PM | #1052 |
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Re: H-I-J '76 Nova re-fit.
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03-21-2019, 09:31 PM | #1053 |
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Re: H-I-J '76 Nova re-fit.
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03-21-2019, 09:43 PM | #1054 |
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Re: H-I-J '76 Nova re-fit.
Of the bearings showing copper, yes. You can see in the picture, the bearings that were real bad have the same pattern, worn more on one side than the other. The other weird thing about it is, as you can see some bearings are worn and some are worn really bad (showing copper), the worn bearings are #'s 2-4-6-8, the bearings really bad (showing copper) are from 1-3-5-7.
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03-21-2019, 09:45 PM | #1055 |
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Re: H-I-J '76 Nova re-fit.
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03-21-2019, 11:06 PM | #1056 |
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Re: H-I-J '76 Nova re-fit.
Not necessarily in this order but it looks like maybe overfilling (too much oil) causing foaming or aeration --- a blocked oil passage or 2,---- a malfunctioning oil pump or pressure relief valve---- improper bearing selection or installation --- since all the bearings show some damage and those on one side more so than the other side-- also is it possible that you have the left pistons installed on the right bank and vice versa looking at the wear??? and finally crud remaining in the engine block after machining --- You'll find just have to keep on looking FED 387
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03-21-2019, 11:10 PM | #1057 |
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Re: H-I-J '76 Nova re-fit.
Can I see a picture of the crank?
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03-21-2019, 11:35 PM | #1058 |
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Re: H-I-J '76 Nova re-fit.
This is the only one I have as it was coming apart.
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03-21-2019, 11:38 PM | #1059 | |
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Re: H-I-J '76 Nova re-fit.
Quote:
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03-21-2019, 11:49 PM | #1060 |
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Re: H-I-J '76 Nova re-fit.
put it back together with new bearings put the CORRECT amount of oil in it fire it up on the dyno then after a few minutes shut it off--- pull the pan see if it has foam--- then turn it over and pop off the rod caps from 5 & 6 see if they look bad --while you are at it may as well check the others too maybe use a "regular" filter instead of that new fancy one you have see if that makes a difference---- might want to check your oil pressure from that small plug front of the engine on top of the block near the timing cover thats the last place that sees oil
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