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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: Jluck on July 25, 2011, 11:29:57 PM
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Here's the skinny...
2001 2.0L with only 30K. (confirmed)
this engine has been sitting for years with a start up rarely but always ran perfect. now its time to put this converted 4 door 94 sidekick on the road but it seems #4 cylinder has a stuck ring. (pressurizing the crankcase)(#4 has low compression).
this is Honkey_2.0's rig and he don't get allot of time to come down here and work on it so pulling the engine is hopefully avoidable.
so do y'all have any tips or tricks for getting a ring freed up with out pulling the engine?
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It depends on if the ring is stuck, and then why would it be after 30K
miles? or if it's collapsed? Now if it's got carbon buildup, some Naphtha
or Techron additive poured down the plug hole will help to remove carbon
buildup, but if it's collapsed there is no fix other than replacement
Wild
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It depends on if the ring is stuck, and then why would it be after 30K
miles? or if it's collapsed? Now if it's got carbon buildup, some Naphtha
or Techron additive poured down the plug hole will help to remove carbon
buildup, but if it's collapsed there is no fix other than replacement
Wild
This is the point where I am telling myself lies and still holding on to the glimmer of hope that it can be fixed easily. :) I don't even want to process the "collapsed"or "replacement" words yet. I will more than likely be the one to fix it.
and I dont know why it would have any sort of problems w/30k, it has me lost.
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Well start with the treatment and run a good high mileage
high detergent motor and add some Seafoam to the oil in
the maximum amount, that will be the best way to try and
save it.
What is the compression on that cylinder? does it act like it's
totally dead of just not working to it's potential?
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the cylinder was lower than the rest.
1)75
2)75
3)75
4)50
I know these numbers are very low but I think its my 40 year old rubber cone tip tester. (it has always been low but consistent). I will get a good tester next trip to town.
I have done straight seafoam down the plug hole and have put it in the oil also. I will run it tomorrow long enough to get a heating/cooling cycle or two, that might help.
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old timer trick is to use diesel instead of motor oil; I'd take 2 qts out , add diesel, run it til loose, and then change oil.
mebbee get a known good comp tester to set baseline #'s first?
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Could someone define "collapsed" as against "stuck" for me - I have a set of low mileage pistons here from a 1.3 Swift GTi - the rings are so firmly stuck in the grooves it's unbelievable.
The engine is stripped and I've even tried soaking the pistons in a hot degreaser solution - nothing so far has worked - it's a parts engine I picked up so it's not a big deal, and if I have to replace the pistons, I'll do so when the time comes.
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I was always told that Marvile Mystrey oil was good for that ???
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Collapsed would be where the rings have lost their spring and
don't push against the cylinder walls tightly
I know Diesel fuel will creep through just about any gap, I'm just not
sure I would want to dilute the oil with that much.
I had a knocking lifter in the family car, not a consistent problem, but
I added the Seafoam to the engine oil, I think it called for about half
the can, and have just run the engine for about 1000 miles, it's quiet
once again.
Starting and running your engine through several heat and cooling cycles
is probably not enough to ease your problem, it may take quite a few miles
to get things freed up. Definitely start with soaking the cylinder with Techron
poured into the cylinder to start the carbon removal process, and follow that
with Seafoam in the oil and drive it, don't just idle it, you need the high and low
pressures and vacuum to help break up and remove the deposits
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Collapsed would be where the rings have lost their spring and don't push against the cylinder walls tightly
For example - an engine that has been badly overheated so that the rings lose their tension ???
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Yes, that would do it
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It would be kinda odd that only one cylinder would loose ring tension if the engine was overheated that bad. I'm thinking the ring may be, gasp, broken. Hope not for your sake Jluck.
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I have used liquid wretch to break stuck rings loose on pistons out of the motor.Don't know what would happen if you shot it down the plug hole.
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FWIW; the said engine has never been overheated.
And I really hope there is no breakage too. Just no logical reason for it. But it's not lookin good :'(
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I'm betting the heat cycles will bring it around. Good luck.
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It would be kinda odd that only one cylinder would loose ring tension if the engine was overheated that bad. I'm thinking the ring may be, gasp, broken. Hope not for your sake Jluck.
I'm the guy who asked about the overheating - my apologies for any confusion caused, I was trying to understand the concept of a "collapsed" ring.
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Well, my first post but had to chime in.
Run regular old ATF in it. Pour some in the plug hole and run it in the motor. It will clean anything out.
Just my .02,,,,,,,,,,,,,,,
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Reminds me of an attempt to remidy a weak cylinder on a crx a few years back. I filled the cylinder with diesel full, let soak a week, sucked it all back out, drove the car for a 3 hour drive on interstate, poured a tablespoon of Seafoam ( i likes my Seafoam :-* ) into the cylinder, waited a day, drove the 3 hours back still no luck, so I filled the cylinder with ATF and let it soak for a week. In the end I pulled the head to find a valve was bad. But man was that one piston shiney compared to the others. So I know one at least one of the three (Diesel fuel, Seafoam, ATF) did something (or maybe a combination).
My trick for sucking fluid out is .... take a sturdy can like oh maybe an empty Seafoam can ( I told you i likes my Seafoam :-* ) and duct tape your vacuum cleaner hose to the hole in the top. Then use a nail to punch a hole in the top, used a tapered punch to open the hole just big enough that you can get a hose the size of windshield washer hose to slide in. A tight fit is good. :) now your little contraption is ready to suck fluid out of the cylinder. Never mind the "small"hose - it will work faster than you might think. Keep it around the garage - it works great for lots of stuff.
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In the end I pulled the head to find a valve was bad
LOL I about choked when I read that, too funny, but shiny pistons are
happy pistons :D
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some day I will Mcgyver a lighted webcam small enough to slip through a spark plug hole to do visual inspections. I'm sure there is something out there you can buy ... but I'm to "thrifty" and then I can repeat the engine torture to find out what made the piston shiney
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Ya, it's out there, home depot has a lighted camera on a flex neck for
inspecting inside walls and stuff, not sure if it's small enough to fit in
a plug hole but it's a neat package all in one
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Snap-on has one.
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The one from HF is just $80 when on sale. Mine works great!!
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GOT IT!
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it freed up today. after many heating/cooling cycles and a cocktail of atf,seafoam and oil something worked!!
compressions great across the board now I just have to figure out the fueling on #4
http://www.zukiworld.com/forum/technical-discussion-beginner-repair/'01-2-0l-not-getting-fuel-in-4-cyl/ (http://www.zukiworld.com/forum/technical-discussion-beginner-repair/'01-2-0l-not-getting-fuel-in-4-cyl/)
so this thread is dead I guess.
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Great news, but good threads never die, they get revived in 5
years by someone having the same/similar problem ;)
Wild
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I was always told that Marvile Mystrey oil was good for that ???
Okay... I know this is an old thread that somebody has blown new life into... At any rate Marvel Mystery Oil is a old but good product that I can attest to freeing up more than 1 stuck engine that has been setting. It is a good penatrating oil that we have used in industrial applications on metal items to loosen debrie and to maintain shelf life.
Another great product that I would recommend is (Clickable Link) SEAFOAM (http://www.seafoamsales.com/motor-treatment.html) They have many products but manufacture and engine cleaner specifially designed for your problem.
Good Luck! Tux...
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Hey Tux, this thread started on July 25 2011, not that old ;D