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| Engineering/Technical Ask technical questions about cars. Do you know how a car engine works? |
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03-06-2009, 07:27 PM
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#1 | |
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AF Newbie
 Join Date: Feb 2009
Location: Beaver Springs, Pennsylvania
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Are crosshatches normal in engine with 113,000 miles?
I picked up an engine from the junkyard and you can still see some crosshatching in the cylinder. Do you think the motor was rebuilt? It is out of a Grand Prix 3.8 Liter.
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03-06-2009, 08:03 PM
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#2 | |
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AF Fanatic
Join Date: Jan 2006
Location: " The Scenic City "
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Re: Are crosshatches normal in engine with 113,000 miles?
I'd say rebuilt or very low mileage ? Maybe you lucked out ?
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03-06-2009, 09:17 PM
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#3 | |
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Professional Ninja Killer
 
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Re: Are crosshatches normal in engine with 113,000 miles?
Its not unlikely. I've seen them in engines with 213k. It depends on maintenance.
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Dragging people kicking and screaming into the enlightenment. |
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03-09-2009, 10:58 PM
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#4 | |
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AF -Advisor
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Re: Are crosshatches normal in engine with 113,000 miles?
I see it more often than not.
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03-10-2009, 01:19 PM
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#5 | |
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AF Enthusiast
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Re: Are crosshatches normal in engine with 113,000 miles?
Usually in the lower part of cylinder , some parts of many cyclinders do not get touched by piston at all.
Never see it at the top where the rings stop. |
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03-10-2009, 10:19 PM
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#6 | |
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AF Newbie
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Re: Are crosshatches normal in engine with 113,000 miles?
To clarify, the crosshatches are towards the top of the cylinder say 1.5" from the top, but they aren't the whole way around they are just here and there. You would think the rings would have them worn off with that kind of mileage.
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03-10-2009, 10:24 PM
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#7 | |
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AF Newbie
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Re: Are crosshatches normal in engine with 113,000 miles?
While on the subject are the pistons supposed to have any slop from side to side?I didn't take a compression test so I hope it's all right as far as cylinder wear and burning oil.(crosshatching here and there)
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03-11-2009, 04:36 AM
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#8 | |
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AF Enthusiast
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Re: Are crosshatches normal in engine with 113,000 miles?
They should have noticeable play when moving them around. Mostly sideways rocking. If the rod is still hooked then it wo'nt rock much either way. The best way is to check clearance at largest part of skirt perpendicular to the pin and subtract from cylinder diameter.
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