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#1 |
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Join Date: Jun 2017
Location: Loomis, CA
Posts: 46
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I changed the oil on my 35 with what I believe to be the original motor. Just a tad bit of gray sludge on the cap which seems like good news but when inspecting the catch pan there are several clumps of what look like copper-ish material. Engine seems to run fine even with lower compression in a couple of cylinders. Are these deposits somewhat normal? It is my second oil change after having the car for about a year. Again i know the engine is tired but is this a real bad sign? Thanks
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#2 |
Senior Member
Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,078
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My guess and only a guess is the bearings are coming apart.
I can't think of anywhere else copper would be coming from. Engine experts? What say you?
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#3 |
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Join Date: May 2019
Location: Los Angeles/Santa Barbara
Posts: 57
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How sure are you it is copper? From the post sounds like it could just be copper colored stuff. Is it metal filings, or just sludge?
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#4 |
Senior Member
Join Date: Feb 2011
Posts: 794
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Probably the best way to find out what's in the oil is to get it analyzed rather than wild guessing.
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#5 |
Senior Member
Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,078
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Uh duh. Why didn't I think of that? Good advice sir, good advice.
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"I can explain it for you. However, I can't understand it for you". |
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#6 |
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Join Date: May 2010
Location: Auburn, MA
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#7 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,436
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I did the Blackstone Labs thing a couple of years ago. It was quick and easy, and if I remember correctly, it cost $25. I got the kit at my local NAPA.
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#8 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,909
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AS far as I know, copper bearings were used ih heavy duty truck engines. But may have been installed during a rebuild.
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#9 |
Senior Member
Join Date: May 2010
Location: east glenville NY
Posts: 158
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copper isn't magnetic, does the copper colored sludge stick to a magnet?
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#10 |
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Join Date: May 2010
Location: (Not far enough...) Outside of DC
Posts: 3,387
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Now we're getting somewhere...
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#11 |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,790
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If it's "clumps", could it be from the mesh in the oil breather cap that disintegrated into the pan?
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#12 |
Senior Member
Join Date: May 2010
Location: SPEEDWAY INDIANA
Posts: 4,148
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I was a fleet mechanic for Speedway police etc in the early 80s and we used Kendal oil. Every oil change was sampled and put in a small tube to be analyzed. I had a book with a test sheet for every vehicle.
Couldnt believe the dollars we saved. All bearings have copper in them . Our reports would include copper-bearings,water/antifreeze-leaks, chrome-piston rings, cast-camshafts etc...fuel in the oil . Saved us a ton , even sent a new ford back for warranty repairs based on two samples high in cast iron , had camshaft lobes coming apart at 10,000 miles ........ https://search.yahoo.com/yhs/search?...%20compisition |
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#13 |
Member
Join Date: Jun 2017
Location: Loomis, CA
Posts: 46
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Im 90 percent sure this is copper. Unfortunately i did t spot it oluntil i dumped the pan into a larger jug of other used oils.
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#14 |
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Join Date: May 2010
Location: Oshkosh, Wi
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#15 |
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Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
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Should be more of it in the oil shortly! Plus I'd be fairly sure the block was not cleaned out that well with just a normal oil change.
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#16 |
Senior Member
Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,137
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Could it be rust ? If you need to remove the oil pan , check the 4 core plugs on the pan rail .
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