kam Posted August 21, 2008 Share Posted August 21, 2008 My straight 6 started to knock when I took the car out off storage. Iput new gas and a battery in it and it started after a few cranks. Gave it some gas and it started to knock at 3,000 r.p.m. and would stop at 5,000. What would do that to my motor? It ran great befor and it was only stored for 4 months. I don't want to put a nother motor in because this one hardly has 4,000 miles on it. Is there a way to fix it with out a rebuild? thanks Quote Link to comment Share on other sites More sharing options...
turboboost Posted August 21, 2008 Share Posted August 21, 2008 Did it have oil in it when you started it?.. Quote Link to comment Share on other sites More sharing options...
kam Posted August 21, 2008 Author Share Posted August 21, 2008 changed it before I started it with royal purple. Quote Link to comment Share on other sites More sharing options...
2eighTZ4me Posted August 21, 2008 Share Posted August 21, 2008 Does it knock at idle? I'd recommend getting a stethoscope with a metal tine on the end of it (can get at a tool store or auto parts store for cheap) - or you can use a long screwdriver and put your ear down on the end of it - with the motor running, and try to determine if the knock is coming from down low in the bottom end or up top in the head. I'm hoping you verified you had oil pressure when you ran it up to 5K - I had a Chevy 400 SB in one of my old Z's that had a bad wrist pin in the #5 cylinder that would knock at a certain rpm range - and only after it was warmed up. Not saying this is your problem, but it was mine. I'd also pull the valve cover and see if you can see anything awry. I have had a situation with an old motor in my DD that would knock like a bastage upon startup once every blue moon. Sounded like a rocker out of adjustment, but it usually went away after 2 minutes of running, so I could never track the gremlin down. Hope others chime in - that's just my personal experience with getting "knocked up". Quote Link to comment Share on other sites More sharing options...
kam Posted August 21, 2008 Author Share Posted August 21, 2008 It runs great at idle. Only at 3 to 5,000 r.p.m. The knock sounds like its on the bottom end cylinder #1 or #2. I pulled the valve cover and it looked good, but I drained the oil and there was metal shavings and I think it's piston skirt aluminum chunks. So I think my motor is junk. I ran great befor storage, but why would it start now? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted August 21, 2008 Share Posted August 21, 2008 I ran great befor storage, but why would it start now? That is a mystery I don't think we're going to be able to solve for you. Quote Link to comment Share on other sites More sharing options...
MatMan Posted August 21, 2008 Share Posted August 21, 2008 Wht kind of starage place did you have it in...? I see visions of Cam's dad's Ferrari being launched in Ferris Bueller's Day Off. Quote Link to comment Share on other sites More sharing options...
kam Posted August 21, 2008 Author Share Posted August 21, 2008 It was stored in my brothers big new shop.Heat/cool no leaks in roof, its nicer than my house. Quote Link to comment Share on other sites More sharing options...
JSM Posted August 22, 2008 Share Posted August 22, 2008 Shavings = bad. Reason = ?? Rebuild = Most likely to definitely My thought on the reason. If it only has 4K on it b4 you parked it, most likely and this is a guess, it wasn't put back together correctly or one of the new parts completely failed. Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted August 22, 2008 Share Posted August 22, 2008 Wht kind of starage place did you have it in...? I see visions of Cam's dad's Ferrari being launched in Ferris Bueller's Day Off. LOL that is exactly what I was envisioning. Quote Link to comment Share on other sites More sharing options...
kam Posted August 24, 2008 Author Share Posted August 24, 2008 I got a motor from a rolled 280 with cam, header and a 250 hp shot of nitrous kit on it. The guy I got it from never used it. Will this motor hold up to that much spray or would I just have to pull it out the first time I try to spray. Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted August 24, 2008 Share Posted August 24, 2008 I got a motor from a rolled 280 with cam, header and a 250 hp shot of nitrous kit on it. The guy I got it from never used it. Will this motor hold up to that much spray or would I just have to pull it out the first time I try to spray. It depends. If you get a good long spray on it, it will probably leave the engine bay for you (in pieces). Otherwise, you will have to pull it yourself. Quote Link to comment Share on other sites More sharing options...
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