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Old 11-03-2012, 04:16 PM   #1 (permalink)
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sporty cyl. help

i replaced top end gaskets on my 93 sporty about a year ago due to a blown head gasket.used stock gaskets from h-d .,Yea , i know i shoulda used cometics, but only after a few 200-300 miles,same front cyl leaking again.i've been in many engines being a heavy equip. tech, and also lycoming and contiental air plane engines.
i kinda have an idea wats going on...
The bike was an 883 now has 1200 cyl.s on it. long story. how often does a sleve start sliding
sleve is now about .030 down., gaskets wont help now..
can i resleve the cyl or cheaper to replace. if i got to replace
can i go any larger without splitting and boring the case.
are all 1200 cyls. in that year range gonna be the same deck height ext.
engine only has 4100 miles with custom powder coated cyls ect.
yea i know i'll have to repowder coat the pair to match
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Old 11-04-2012, 05:53 AM   #2 (permalink)
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Sportster cylinders have cast in place liners, not supposed to move at all. I suspect you'll need a new cylinder. FYI, the 883 cylinders can be over bored to 1200.
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Old 11-04-2012, 06:31 AM   #3 (permalink)
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thanks for reply, gonna run to the swap meat held in Webster Fl, on the first sun of the month. hope to find a good en
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Old 11-07-2012, 06:52 PM   #4 (permalink)
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well i picked up a 883 jug and had it bored and final honed, ordered cometic gasket set, i should be able to put it back together sunday. IF LEFT ALONE,
Schmidty, first, thanks for ALL yer knoledge,..... what do ya'll think caused the sleeve to move in the cylinder??...
THANKS JIMMY
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Old 11-08-2012, 06:52 AM   #5 (permalink)
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I don't know how the sleeve could move like that, never seen that on a Sportster cylinder !
Maybe it's not an OEM H-D cylinder ! Does the bad cylinder have an Harley casting marks on it ???
The MoCo had some problems with cylinder sleeves moving in the 110" CVO engines and issued recalls to correct the problem but that's a different story.
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Old 11-09-2012, 08:51 PM   #6 (permalink)
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there are no casting marks on these cylinders, makes me think these are aftermarket.
the cylinders i picked up are/have 883 cast in the lower part near the base on a corner
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