chriscook
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| posted on 8/4/08 at 07:21 PM |
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Freshly built engine wear
Having taken the sump off due to my slow to rise oil pressure (see here) I found
the pickup was definitely only 2-3mm from the bottom of the sump so I'm hoping that's the problem there.
However, I found a few very small shiny non-magnetic metallic particles in the oil and one or two slightly larger bits (only a couple of mm). The bits
are quite soft so i'm thinking they are from bearing shells. Should I be worried or is it normal for a freshly built engine?
I undid the rod bolts as they are ARP and plenty of people seem to re-use them plus its only been run on the drive for a few minutes under no load.
The big end shells look okay with some very light marks on them, but pretty much what I would expect to see.
Now I don't know whether to undo the mains to have a look at them or not - I'll need new bolts if I do that. Both the main and the big end
bearings are new. The block was rebored and its got new pistons - the bores look good when looking up from underneath.
Cheers,
Chris
[Edited on 8/4/08 by chriscook]
[Edited on 9/4/08 by chriscook]
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TOO BADD
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| posted on 8/4/08 at 07:54 PM |
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When the engine was built did you prime the oil pump prior to start up ? ie pack with grease to enable oil pressure to happen ?
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Mr Whippy
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| posted on 8/4/08 at 08:37 PM |
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I wouldn't worry, chances are it is just metal left from parts bedding in. Every time I have removed a sump there's been some metal at the
bottom, even though the engines been fine.
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gregf27
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| posted on 8/4/08 at 10:17 PM |
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Chris,
I have just installed my xe in my F27 and fired it up a couple of times now- now probs with the oil pressure- as I packed it with vaseline to prime
it which then melts away when warmed up, the clearance between sump and pick up seems ok, I wouldnt worry too much about the metal bits, just make
sure you change the oil after the 1st 500 miles or so - enjoy!!
Greg
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chriscook
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| posted on 9/4/08 at 07:52 AM |
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Sorry I meant to type non-MAGNETIC particles - they are metallic.
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