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Reload this Page Can you reuse a block that has a chip out of the cylinder wall?
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Old 07-12-2019, 03:29 PM
three4rd three4rd is offline
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Default Can you reuse a block that has a chip out of the cylinder wall?
Just wondering...not for myself...but just sold my old K-301 block to a guy in Utah who recently picked up a 124 that has an engine with a broken rod. Based on what he tells me, when the rod broke it chipped out the cylinder skirt on the bottom, and guys are telling him it's ok to reuse (?) He's leery of it, hence the reason he bought mine (which also had a broken rod). In looking closely never saw any visible damage to mine and so always figured someone could reuse / rebuild it. At least the guy who built an engine for me thought so after looking it over (but then he didn't need it cause he came across a block that had never been used).
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Old 07-12-2019, 03:33 PM
R Bedell R Bedell is offline
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That depends, on how big the chip is.
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Old 07-12-2019, 03:35 PM
three4rd three4rd is offline
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Regardless of how big the chipped area is, wouldn't there be a loss of compression? Shouldn't something like that be sleeved?
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Old 07-12-2019, 05:13 PM
Workingstiff Workingstiff is offline
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Location and size of the chip, are very important to determine the usefulness.
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Old 07-12-2019, 05:19 PM
R Bedell R Bedell is offline
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Quote:
Location and size of the chip, are very important to determine the usefulness.
Ditto.....X2
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Old 07-12-2019, 05:33 PM
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ol'George ol'George is offline
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Originally Posted by three4rd View Post
Regardless of how big the chipped area is, wouldn't there be a loss of compression? Shouldn't something like that be sleeved?
Most of those blocks that are chipped are in the shirt area, way below where the rings stop, therefore they are usable and cause no problems.
They usually are only 1/2" or so above the bottom of the spigot.
FWIW, various blocks are relieved in the skirt area for counterweight/rod clearance from the factory.
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Old 07-12-2019, 08:40 PM
dodge trucker dodge trucker is offline
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No change in compression with a chip at the bottom of the cylinder. Most I have seen is at the very bottom of the cylinder and the Piston is still 98% surrounded and supported by the cylinder bore. As long as the cylinder isn't cracked up into the ring travel area it should be ok but I can't see your block from here so idk if it's salvageable or not.

That said the last k321 that I overhauled had previously blown up/broke the rod and it is completely fine.
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