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Unread 08-03-2009, 12:29 PM   #1
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Join Date: Jul 2009
Location: canada
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93 GC 5.2L crankshaft removal

My buddy down the way has a 93 GC with the 5.2L 318 motor. He spun a rod bearing, the rod on number 1 cylinder broke and the engine stopped. Its been examined with a camera, and there is no other damage. After the broken parts were removed, the engine turns easily by hand. Last night we pulled the timing gears off with the chain, and now the crank is ready to drop. He wants to change it for a new one incase the old one got bent.

Question: Does the tranny (auto) have to come off? A local tekkie says the trans can stay on.

Has anyone done a crank removal and re-install on this motor? What is the procedure? he has the Haynes book which is almost useless.


Ian R.

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Unread 08-03-2009, 12:40 PM   #2
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1995 ZJ 
Join Date: Feb 2005
Location: New Mexico
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I can't think of a way to remove the crank-to-flexplate bolts without removing the transmission.

I've only removed the crank with the motor out. With the timing chain already out, just remove the rod and main caps and the crank comes straight out. Putting it back is more of a challenge due to lining up the rods with the crank. Cover the rod bolts with plastic tubing to protect the crank.
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