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Piston soak #5230158 10/04/19 12:16 PM
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ram_man Online Content OP
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My little 02 sc2 uses about a quart of oil in a 1,000 miles. Typical Saturn stuff.
I am going to do an engine flush procedure and piston soak most likely. What would be the best chemical to use for this job? Something that will soften the carbon on the piston rings. What would you use? Engine has 122,000 on it runs great compression is perfect it just has stuck oil control rings. .


2014 dodge dart GT
1995 Dodge ram 1500


Re: Piston soak [Re: ram_man] #5230163 10/04/19 12:24 PM
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Brian553 Offline
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Berryman's B-12 Chemtool.


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Re: Piston soak [Re: Brian553] #5230170 10/04/19 12:32 PM
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LotI Offline
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Originally Posted by Brian553
Berryman's B-12 Chemtool.

Or Chem-Dip.


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Re: Piston soak [Re: ram_man] #5230179 10/04/19 12:41 PM
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Donald Offline
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This will be interesting to follow. The oil control ring is the bottom ring and will come into contact with very little of what you pour into the spark plug hole to do a piston soak. But some will certainly get past the top two rings and onto the oil control ring.

Something like Kreen or similar in the oil might be better.


2015 Subaru Forester 2.5 engine/CVT
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Re: Piston soak [Re: ram_man] #5230252 10/04/19 02:14 PM
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Mopar Combustion Chamber Cleaner.. I think its close to the same as the old GM ring cleaner and looks to be the same as Yamaha Combustion chamber cleaner.


I think PEA also dissolves carbon.. so maybe a Redline Si-1 soak.

Re: Piston soak [Re: ram_man] #5230292 10/04/19 02:59 PM
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Railrust Offline
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Mystery Oil, let it sit for two days and hope for the best.

Stuck rings are very tough to free up and when the oil control rings are carboned up, they are a nightmare to unclog.

I wonder if overfilling a crankcase by a couple quarts with mystery oil, taking it for a run and having the oil actually enter through the bottom of the piston area would help things before a soak? Because that oil will get forced into the combustion chamber if it's overfilled.

Re: Piston soak [Re: ram_man] #5230313 10/04/19 03:14 PM
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PEA needs heat to activate, that's what makes it superior to other solvents that can't survive the combustion chamber temps (even before compression) long enough to do anything.

Berrymans, it has a very stout mix of solvents...way better than Seafoam. A gentler mix would be MMO. There's a line of thinking that says it's better to de-carbon the piston tops in little steps to avoid a big chunk breaking off and getting stuck between the exhaust valve and the seat. MMO is a mild cleaner..I think it's mostly a kerosene carrier with mineral spirits and some other stuff in small amounts. Kerosene btw is a mild solvent too. I've used it to remove grease.

I would not use a PEA based cleaner, it's a waste of money for what you're doing. Xylene, naptha, toluene, mineral spirits, kerosene are all good solvents and readily available .

Last edited by Mad_Hatter; 10/04/19 03:24 PM.
Re: Piston soak [Re: Railrust] #5230315 10/04/19 03:20 PM
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Originally Posted by Railrust
Stuck rings are very tough to free up and when the oil control rings are carboned up, they are a nightmare to unclog.
.

The only thing that helps rings that bad is regular flushes over several oci's (maybe) or taking them out and physically cleaning them.

Not all carbonaceous deposits are the same and some can be a *_&#- to get freed..

Last edited by Mad_Hatter; 10/04/19 03:33 PM.
Re: Piston soak [Re: LotI] #5230321 10/04/19 03:27 PM
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Originally Posted by LotI
Originally Posted by Brian553
Berryman's B-12 Chemtool.

Or Chem-Dip.

^^^ this! Fill each cylinder and let it sit overnight. Best carbon dissolver on the market.


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Re: Piston soak [Re: ram_man] #5230367 10/04/19 04:12 PM
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sloinker Offline
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Wouldn't this be a good application for the premium Blue Restore. isn't this exactly the problem it was designed to alleviate?
https://www.ryderfleetproducts.com/valvoline-877377/premium-blue-restore-10w30-gallon-p-vvl-877377


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Re: Piston soak [Re: ram_man] #5230374 10/04/19 04:26 PM
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Quest Offline
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no need to dwell on this subject with solvent soak, nothing will work for you anymore (oil ctrl rings completely jammed)

Proper way to deal with this is re-ring the engine.

Q.


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Re: Piston soak [Re: sloinker] #5230387 10/04/19 04:41 PM
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Brian553 Offline
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Originally Posted by sloinker
Wouldn't this be a good application for the premium Blue Restore. isn't this exactly the problem it was designed to alleviate?
https://www.ryderfleetproducts.com/valvoline-877377/premium-blue-restore-10w30-gallon-p-vvl-877377


+1

I would think de-carboning the oil control ring is done better via cleaner in the crankcase.

Last edited by Brian553; 10/04/19 04:42 PM.

Delvac 15w40.............Valvoline Maxlife FS ATF........Liquid Wrench Penetrant
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Re: Piston soak [Re: ram_man] #5230415 10/04/19 05:34 PM
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Donald Offline
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What is the future of this vehicle? Want to run it for a few more years? Ready to dump it but want to do some experimenting.

Get a price to pull the heads, remove pistons and install new rings from a mechanic who can do this on the side.


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Re: Piston soak [Re: Donald] #5230556 10/04/19 08:22 PM
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ram_man Online Content OP
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It'll be around a long while it's more of a hobby car. As far as pulling the engine apart I wouldn't do that unless I had to. This is a super common Saturn problem that people have had success trying additive Cocktails to help slow consumption


2014 dodge dart GT
1995 Dodge ram 1500


Re: Piston soak [Re: ram_man] #5230559 10/04/19 08:24 PM
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I had a 99 saturn sl2 with the twin cam engine.
It still ran well, but oil consumption was getting bad.
I soaked it on a friday overnight with chemtool, then saturday I added some marvel mystery oil and let it soak the rest of the weekend.
Make sure to turn the engine over by hand with a breaker bar a couple times after you add your chemical to coat the cylinder wall and help it work down into the rings.

My consumption was reduced considerably after I did the soak.


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