stuck engine

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10 Jun 2007 13:42 #148061 by arobsum
stuck engine was created by arobsum
i found this old bike that had been sitting in a garage for years. trouble is, the motor is stuck. i filled it with wd-40 and let it sit. no luck. anyone know of any tricks i could try short of disassembly? everything else seem to be in order.

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  • Duck
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  • e vica na i sau na ga
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10 Jun 2007 14:17 #148063 by Duck
Replied by Duck on topic stuck engine
If it's the pistons that are stuck, and it may not be, I've had good luck with ATF or Marvel Mystery Oil and PATIENCE. Letting it sit for a week helps a lot. Put in 2nd gear and rock gently to free up. You don't want to force it or you'll end up ith more trouble...
100

XXXXXKawPen:the other green meat

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10 Jun 2007 15:19 #148073 by wireman
Replied by wireman on topic stuck engine
gas/trans fluid

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10 Jun 2007 15:43 #148076 by clone5
Replied by clone5 on topic stuck engine
Eucalyptus Oil. Best penetrating oil ever!

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10 Jun 2007 15:50 #148080 by BSKZ650
Replied by BSKZ650 on topic stuck engine
do the Duck deal, if that dosent work pull it apart
77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob

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10 Jun 2007 16:44 #148094 by arobsum
Replied by arobsum on topic stuck engine
i didn't even think of trans oil. thanks! i'll put some in it tonight and report back with the results. thanks for the help.

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10 Jun 2007 16:48 #148096 by Patton
Replied by Patton on topic stuck engine
Might also try PB BLASTER which is specially formulated to loosen rusted bolts and fasteners. Not saying it's any better than those already suggested, but it works well. Would let it penetrate for a few days, and replenish daily. If doesn't break loose, allow it to soak a few more days. :)
1973 Z1
KZ900 LTD

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10 Jun 2007 17:14 #148101 by Leather
Replied by Leather on topic stuck engine
a heat gun and some caution.
If you'll warm the outter area of the cylinders around the middle of the jugs and let the cylinders expand while the oil works down. a few times of this warm then cool then warm treatment should help!

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10 Jun 2007 17:27 #148104 by Frank
Replied by Frank on topic stuck engine
Diesel thats all you need, let it sit over night or longer. Try it.

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11 Jun 2007 18:19 #148488 by arobsum
Replied by arobsum on topic stuck engine
the trans fluid did the trick. let it soak overnight and presto. moves freely. a good tip guys, thanks. it still seems to have decent compression too.

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