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Old 03-03-2013, 06:58 PM   #11
Donnyd21
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Quote:
Originally Posted by mikebontoft View Post
I hate to add a difference in opinion but you don't need to replace the other rods and pistons if they have a little pitting. You have to make sure though that the top ring can move freely. It should be fine on all the other pistons, but I suppose you should check anyway.

My piston was hamburger meat on the top and I actually ran the engine for a good 20min after the seat dropped. drove it into the shop. When I later disassembled it, the whole skirt and actually most of the body were missing and sitting in the oil pan.
I can agree with that, very minor nicks are fine, but most of the time its not minor...
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Old 05-27-2013, 06:28 PM   #12
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Sorry to thread jack, but how do you support the engine when pulling a piston while the engine is still in the car?
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Old 05-27-2013, 06:31 PM   #13
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You don't need to unbolt the engine mounts to pull a piston.
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Old 05-27-2013, 06:50 PM   #14
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You don't need to unbolt the engine mounts to pull a piston.
One of the passenger side engine mounts has to come off to pull the head and timing cover right?
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Old 06-01-2013, 06:41 PM   #15
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Are you guys honing the cylinder with crank still in it?
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Old 06-02-2013, 05:22 AM   #16
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Put a towel over the crank. I'd even consider not honing if motor is old especially if you still have honing mark left. Maybe 400 sandpaper taken to bore. Take a razor blade and carefully scrape the carbon ring at top of cylinder off and often no need to remove ridge, these motors wear very little. Once cap is off rod, tap on rod bolt to move rod up a bit and then use upside down hammer handle located in the middle of the rod curve for bearing to fully remove piston/rod. Depending on how hard it is to get piston out you don't want to be pushing on bolts by then, you can knock the bolt out and don't need to do that.
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Old 06-03-2013, 10:44 AM   #17
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Wrapped plastic trashbags around the crank so I could wash the cylinders out without washing grit all over it.
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Old 06-03-2013, 09:17 PM   #18
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There you go, be inventive, or how to cure practically anything.
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Old 06-04-2013, 08:01 PM   #19
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It's probably frowned upon, but I always installed new pistons in lawn mower engines by hand. I quickly found that was not going to be a simple task on the focus, and didn't wanna drive to the store for a ring compressor. I took the old timing belt and a pair of vice-grips, and the combination worked quite nicely!

Not trying to thread-jack. It's mildly on-topic and I thought it might be a helpful hint.
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Old 06-06-2013, 12:42 AM   #20
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It works, half the time I have no ring compressor either, it gets interesting trying to get pairs in cylinder at same time on like an inline four bike. But I get it done and never have broken a ring ever.

But then I assemble ATX clutch packs without any of the special tools to install pistons too. Gotta be careful and inventive.
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