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ruddyboys's Avatar
 
Join Date: May 2002
Location: hewitt, NJ
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Unhappy need a sledge hammer

My '74 2.0 never turned over, pulled the engine yesterday and found the number 3 piston completely oxidized to the cylinder wall (The car was out side with no cover for 5 years with rain and snow). I tried putting liquid wrench all over the piston and starterd tappiong with a rubber mallet, wouldn't move. What should be the next step?
Old 08-03-2002, 05:42 AM
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I would keep trying to lube it up for a day or so. let it sit and maybe it'll come loose after a while, but i'm no engine expert either. just a thought.l


scott
Old 08-03-2002, 05:46 AM
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This is a totaly hack mechanic idea so feel free not to follow my advice but what about using heat? If you heat up the cyclinder wall it should expand and possibly break away from the piston.
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Old 08-03-2002, 09:36 AM
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I finnaly got the cylinder free. I used a lot of liquid wrench and a piece of 2x4 to tap it loose. I get the engine to rotate now. Tomorrow I will order my new rings fromm PP.
Old 08-04-2002, 07:01 AM
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Check the cylinder for pits where the rings sat against the walls. If they're deep, honing won't take them out and new rings will not seal!!!!
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Old 08-04-2002, 08:21 AM
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Lightbulb Stuck Piston Woes

I restore many vintage autos for a hobby. When it comes to a stuck piston the best thing to use is "PB Blaster". I usually pop out the sparky and spray in a generous amount. This stuff works like magic in a short time. Liquid wrench doesn't even come close. I usually let it sit for a week "not in a hurry" and when I start tearing down the engine, the pistons and other rusty parts just slide out. No muss and no fuss. I have been able to get them out in little over a hour with the PB in the engine and it does the same thing. I hope this helps in the future.
Old 08-18-2002, 07:55 AM
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What is "PB Blaster"? Is that the actual name of the product?
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Old 08-18-2002, 09:01 AM
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Yup. Available at your FLAPS (Friendly Local Auto Parts Store).

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Old 08-18-2002, 09:02 AM
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Diesel fuel is cheaper and works as well. Not quite as handy though!
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"Inventor - Blue Flame 914 Seat Heater"

"Yellow Rusty Cars Are Faster"
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'70 2.5 (I'll never finish it - Somewhere over the rainbow.....,)
'73 2.0 (Just Not The Same)
'74 2.0 (Heartless & Lungless)
Old 08-18-2002, 01:51 PM
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