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Excessive Cylinder Skirt wear hp440

TOMRR

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What would cause excessive cylinder skirt wear on only two Cylinders in a rebuilt 440 with two summers of driving and about 3500 miles

Thanks Tom C.
 

quikbird

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Check bore diameter. Excessive wear is usually due to too much wobble on the piston. Piston could be too small or those cylinders a little bigger.
 

IQ52

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Somebody put an engine together dirty? What does this "excessive cylinder skirt wear" look like? Pictures?
 

RKNRLR

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ill go with too much piston knocking too. had the same issue with my 440 before i pulled it down. had it bored .040 over (was at a rough .030 already) just to clean it up. also had all the new rotating gear balanced. They took some material off of 2 piston skirts, but none of the others.

runs like a new watch now.
 

TOMRR

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My engine builder is saying excessive full dumping( Carb Issue) into cylinder and it wash down two of the cylinder skirts, He found a piece of metal in 750 Holley. Not a clue where it may of come from, There is a filter after the pump and the metal fuel line looks ok. He said it was to big to pass through the filter. I am having a hard time buying into that reason but then again I am not a motor guy.
 
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dmartin

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Somebody accidentally left some foreign substance in the block sounds to me as far as the fuel dumping I don’t know that’s a new one on me man maybe he didn’t change out two sets of rings that’s the reason I like doing things myself if I don’t know something I get somebody who knows and let them look over my shoulder
 

Russ69Runner

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Never heard of metal getting past the fuel filter into the Carb. Had to been in a line or some fitting when putting the Carb. on or replacing some part of the fuel line to it. It is possible to wash a motor down by over fueling. No oil hence excessive wear on cylinder wall and the piston as well as ring's. If you pull the dip stick shortly after doing an oil change and smell's like gas think you have a problem. This is usually to much carb for the motor. Hope you get it worked out. Russ.
 

TOMRR

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Never heard of metal getting past the fuel filter into the Carb. Had to been in a line or some fitting when putting the Carb. on or replacing some part of the fuel line to it. It is possible to wash a motor down by over fueling. No oil hence excessive wear on cylinder wall and the piston as well as ring's. If you pull the dip stick shortly after doing an oil change and smell's like gas think you have a problem. This is usually to much carb for the motor. Hope you get it worked out. Russ.
It did not get past the filter.
 

Russ69Runner

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Boy that is a good thing. Witch cylinder's had the piston skirt wear. Led and lag some time have these problems. Led being number one and number eight being the lag. So that being said let us know which one it was weather number 4 or what ever. This would be interesting to know. Thanks Russ.
 

halftrackman1

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did you have a windage tray in the engine. I don,t not use wind trays, I think they cause piston wear, I like all the oil to fly around in the engine, Also number 1 piston and cylinder will have more wear, the torq start at number 1. I may be wrong too. just my thinking, no I not drinking
 

TOMRR

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did you have a windage tray in the engine. I don,t not use wind trays, I think they cause piston wear, I like all the oil to fly around in the engine, Also number 1 piston and cylinder will have more wear, the torq start at number 1. I may be wrong too. just my thinking, no I not drinking
Yes I am using a windage try, Some how a sliver of metal got into the 750 holley and it stared flood the engine with to much fuel This all happen on the second summer of driving and about 2500 miles. plus there may have been and issue with one two pistons not sure witch ones the engine is back at the builders and replacing piston for free, no damage to cyl. walls plus a cut rate for the Labor.
 
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