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New Rings? |
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BDCVG 
AMC Nut 
Joined: Dec/19/2007 Location: Indiana Status: Offline Points: 322 |
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 Topic: New Rings?Posted: Apr/17/2012 at 11:39pm |
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Summit 8601, Valvoline 10w40, Rislone ZDDP ( 1500ppm) and yes when I first built the motor ('o2) it was clean. The debris I have now is from the cam meltdown. I didn't think I would need to be concerned about rings but wanted to be sure. Obviously if there is some anomaly in the cylinders I'll address that.
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1965 Austin-Healey 3000
1970 AMX 390 1986 Ferrari 328 GTB 2005 Subaru RS25 |
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73hornut
AMC Addicted
Joined: Jul/03/2007 Location: Southern Oregon Status: Offline Points: 1631 |
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Posted: Apr/17/2012 at 10:10pm |
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Hard to believe this is still happening. I would definitely pull it down and flush everything. I imagine , if it's lows miles, that you should only need bearings. What cam are you running, and what oil and zinc additive? When you built the engine, did you run brushes though all the bores to make sure the passages were clean of debris?
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BDCVG
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Joined: Dec/19/2007 Location: Indiana Status: Offline Points: 322 |
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Posted: Apr/17/2012 at 9:52pm |
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tap tap tap "is this thing on?"
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1965 Austin-Healey 3000
1970 AMX 390 1986 Ferrari 328 GTB 2005 Subaru RS25 |
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BDCVG
AMC Nut
Joined: Dec/19/2007 Location: Indiana Status: Offline Points: 322 |
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Posted: Apr/17/2012 at 12:24pm |
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So I ate another camshaft which has left so much crap in the motor I'm pulling it for cleaning and to check bearings. If there is no damage to the crank I will replace the bearings with whatever is in there now.(i can't remember). Should I plan on new rings and a fresh hone? or just keep using the existing rings? My compression has been good with normal oil consumption.
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1965 Austin-Healey 3000
1970 AMX 390 1986 Ferrari 328 GTB 2005 Subaru RS25 |
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