383 cylinder scoring? Anybody have any ideas?
05-10-2010, 05:49 AM
#11
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Re: Running to rich.
Originally Posted by josh4ku
Can running the engine to rich wash down the cylinder walls enought to cause scoring? The pistons seemed really wet when we pulled the head off.
05-12-2010, 07:57 AM
#12
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Yep Hypereutetic's
Originally Posted by hink
Originally Posted by zipper06
Is this a hyperutectic piston or a forged piston, Mahle makes both. If you bought a rotating assy it's possible that they are hyperutetic's and if that's the case the ring end gap is way too little and could cause scoring of the cylinder walls. Also do you know how much piston to wall clearance you have?
Zip.
Zip.
What is their hyper piston P/N???
Zip.
MAH 599911CWR
http://cgi.ebay.com/ebaymotors/ws/eB...3985&viewitem=
05-12-2010, 07:05 PM
#13
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Cylinder scoring.
I had a guy from a machine shop come look at the cylinders and he said it is nothing, just a few streaks from seating in the pistons, he said it wont get any worse, it was probably done in the first 5 minutes of run time. Compression is still 210 psi
