Shmimc1973 Posted June 15, 2016 Share Posted June 15, 2016 (edited) Changing one of the trucks oil today and had a little surprise, these pieces of metal in the oil plug magnet, Any one know what they are from? There brass colored one side and steel colored on the other. couple are about 1/8" thick, and one is very thin. No problems or noises coming from engine. the longest piece is 1 1/4" and the medium piece is about 1" long. Edited June 15, 2016 by Shmimc1973 Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/ Share on other sites More sharing options...
fjh Posted June 15, 2016 Share Posted June 15, 2016 Have you had a turbo go in the last while could be thrust washer from turbo failure Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-336713 Share on other sites More sharing options...
Shmimc1973 Posted June 15, 2016 Author Share Posted June 15, 2016 No. yesterday had the water pump off to replace a frost plug. But nothing has been done for a year, and that was new head gaskets, injectors, exhaust manifold9 Has a small crack I didn't like). But it has ran fine, no noises, good oil pressure and temp and turbo boost is still around 22-24. which I found out is what it should be on this motor. I went ans showed them to a friend of mine, diesel mechanic for DOT, he id baffled also, lo. Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-336715 Share on other sites More sharing options...
terry Posted June 15, 2016 Share Posted June 15, 2016 Crank thrust washers? Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-336735 Share on other sites More sharing options...
fjh Posted June 16, 2016 Share Posted June 16, 2016 I got a feeling it may be lifter bits the one copper looking one looks like the gasket that seals the delivery valve in the fuel pump! you would have a miss if it were failed I would pull the pan and check the lifters! Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-336843 Share on other sites More sharing options...
Shmimc1973 Posted June 17, 2016 Author Share Posted June 17, 2016 (edited) OK, I will check that. It doesn't have a miss tho. But since last fall it has had a problem of losing its fuel prime over night. have to crank about 15 sec. before it will start. Usually take 2 secconds to start. Replaced pick hose today and will wait till morning to see if it had a pin hole leak, it was old a looked like crap. its had to see in my pics, but the thin half broken piece fits around the other, it seriously look like a valve,, very small one. Edited June 17, 2016 by Shmimc1973 Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-336922 Share on other sites More sharing options...
Mike Posted June 17, 2016 Share Posted June 17, 2016 Not trying to steal the thread but looks like part of a front or rear seal. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-337001 Share on other sites More sharing options...
Shmimc1973 Posted June 17, 2016 Author Share Posted June 17, 2016 Well I pulled the valve covers. Checking all valves, retainers rockers, everything looks good, I had the heads off last summer due to a bad head gasket, replaced the injectors why I was at it. A little bit ago I drove over to the mack dealer ship and they said to pull the covers as well. Now he asked me if it ever had a popping noise, Which it always has since I bought it coming from the exhaust, Straight pipe exhaust. Very fait tho. The outfit I bought it from years ago had the valves set and something else with the valves, which I cannot remember now. I am wondering if maybe they had a damaged retainer and it fell down through and my luck, the pieces just now showed up. Also Mike, if it was front or rear seal piece, I should be getting oil leaking right? It hasn't been leaking. But like I said, I am open to any ideas. By looking at this I would be thinking there was a miss or something at least. But the trucks runs fine, except for that losing fuel prime overnight, which I am still trying to track down, think I know what it is. Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-337004 Share on other sites More sharing options...
terry Posted June 17, 2016 Share Posted June 17, 2016 53 minutes ago, Shmimc1973 said: Well I pulled the valve covers. Checking all valves, retainers rockers, everything looks good, I had the heads off last summer due to a bad head gasket, replaced the injectors why I was at it. A little bit ago I drove over to the mack dealer ship and they said to pull the covers as well. Now he asked me if it ever had a popping noise, Which it always has since I bought it coming from the exhaust, Straight pipe exhaust. Very fait tho. The outfit I bought it from years ago had the valves set and something else with the valves, which I cannot remember now. I am wondering if maybe they had a damaged retainer and it fell down through and my luck, the pieces just now showed up. Also Mike, if it was front or rear seal piece, I should be getting oil leaking right? It hasn't been leaking. But like I said, I am open to any ideas. By looking at this I would be thinking there was a miss or something at least. But the trucks runs fine, except for that losing fuel prime overnight, which I am still trying to track down, think I know what it is. A popping noise in the exhaust when you let off of it can be a loose exhaust seat. They can run a long time like this. terry Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-337006 Share on other sites More sharing options...
fjh Posted June 18, 2016 Share Posted June 18, 2016 Popping can be a lifter failure as well. Pull the pan and check the lifters ! Quote Link to comment https://www.bigmacktrucks.com/topic/45674-em-7-metal-peices-in-oil/#findComment-337018 Share on other sites More sharing options...
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