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Old 19 February 2006, 17:00   #1
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What OTHER Cemical Could I Use

Apart From Powertune Is There Anything Else I Could Try To Un Gunk My Sticking Piston Ring Could I Use Asitone As Want To Try Other Things Before Strip Down
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Old 19 February 2006, 17:08   #2
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I would have thought any chlorinated solvent would do the trick.

Alternatively petrol, turpintine substitute, etc etc should do it.

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Old 19 February 2006, 17:13   #3
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Diesel is a damn good penatrating fluid may be worth a drop squirted into the cylinder, before starting tuen engine over with plug out to dispel excess then go for it.

Good luck with the motor

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Old 19 February 2006, 17:28   #4
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Petrol is one of the best solvents known to man.....

Or you could try wd40 or Plusgas.
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Old 19 February 2006, 17:39   #5
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depends what's making it stick... ...I'm not an engine guru but since it was apparently running well beofre standing for 5 years - is it not more likely to be corrosion than carbon deposits?
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Old 19 February 2006, 18:27   #6
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I'm intending to agree with Polwart here. Scoring of the cylinder wall would be on the list as well I'm afraid. I take it you've run it by now?

One tip I can give (not very scientific though) is to squirt some oil into the offending cylinder and compression test again. The theory is that if you still have a low compression reading, then there is a major problem (broken piston ring). If compression goes up to what it should then might not be a serious.
I must admit that I would have stripped it by now, but then that's me!
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Old 19 February 2006, 23:29   #7
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How about popping off the exhaust manifold side of the powerhead and having a look at the rings from there? You could get a good idea if the piston is scored or if its carbon or corrosion thats sticking the piston. Some motors have good access to the exhaust side with little trouble. Worth a shot.
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Old 20 February 2006, 05:13   #8
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Be very careful! I reckon (and this is purely an educated guess) that acetone could strip all the oil off the bores in a nanosecond. I certainly wouldn't start pouring random fluids down it's gullet. Powertune is a known quantity and designed for the job.

You could try redex I guess, but I tend to agree with hightower - I'd have the spanners out and start investigating.

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Originally Posted by bigmike35
Apart From Powertune Is There Anything Else I Could Try To Un Gunk My Sticking Piston Ring Could I Use Asitone As Want To Try Other Things Before Strip Down
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