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Piston Soak #4558974
10/30/17 06:48 AM
10/30/17 06:48 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
Has anyone done a piston soak with straight gasoline? (Pics of this?)

It's a solvent by nature and a runny liquid and I'm sure it would release carbon and gunk from the piston tops and rings?

Just a thought...


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: StevieC] #4558986
10/30/17 07:00 AM
10/30/17 07:00 AM
Joined: Oct 2017
Posts: 87
America
LaCocina27 Offline
LaCocina27  Offline
Joined: Oct 2017
Posts: 87
America
That's an interesting idea...

Re: Piston Soak [Re: StevieC] #4558988
10/30/17 07:06 AM
10/30/17 07:06 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
I know it would wash the cylinder walls but in general it might be a better soak for engines and we could over come the washed cylinder walls after the treatment using some like Napa type oil in the cylinders after like Seafoam or Lucas or whatever until natural lubrication is restored by the oiling system in the engine.


Last edited by StevieC; 10/30/17 07:07 AM.

'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: StevieC] #4559014
10/30/17 07:34 AM
10/30/17 07:34 AM
Joined: Oct 2017
Posts: 87
America
LaCocina27 Offline
LaCocina27  Offline
Joined: Oct 2017
Posts: 87
America
StevieC, what I like about your idea is that since the soak is getting blasted out of the open spark plug holes anyways, it may not do any harm. I've piston-soaked with other fluids, even a mix of, so I'm asking what other adverse affects plain gasoline could have.

Piston soaks are best done with warmed chemical on a hot engine, so that wouldn't bode well for gasoline, unless perhaps it was left in until the engine was cold.

Any other opinions on this?

Re: Piston Soak [Re: StevieC] #4559023
10/30/17 07:40 AM
10/30/17 07:40 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
As engines have "clear flood" modes where depressing the accelerator to the floor while cranking causes the ECU to turn off the injectors while cranking I can't see how excessive gas would cause a problem other than washing the walls and rings of lubrication which can be remedied as I described above if really concerned sort of thing. What I'm getting at is this excessive fuel in the cylinders could exist under real world conditions. Albeit not a lake of fuel but enough to wash the walls if the engine was flooded.

You could run the engine until it's warm, let it cool slightly and then fill the cylinders with fuel and put the spark plugs back in to stop evaporation. Then take them back out and crank over to rid the cylinder of excess fuel that is left.

The more I talk about this the more I think this might be a good idea for carbon. I just wish I had a carbon-upped engine to test it on but I don't at the moment. I do have a boroscope so I could record before/after pics.


Last edited by StevieC; 10/30/17 07:41 AM.

'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: LaCocina27] #4559031
10/30/17 07:51 AM
10/30/17 07:51 AM
Joined: Aug 2010
Posts: 5,688
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,688
Champlain/Hudson Valley
This is a pretty basic operation.
It's less wasteful to soak with a crankcase full of old, ready-to-change oil (since you'll be contaminating it).
Pick a solvent and send it down the spark plug holes.
Wait.
Crank the engine to move it a bit. If I was doing it I'd put a socket on the crank pulley bolt and move the engine 5 degrees each way repeatedly.
Maybe denatured alcohol or lacquer thinner would work well.

What "adverse effects"?
Your engine will relube itself.

After a soak, I'd start the engine for 10 seconds then drain the old, now-contaminated oil and change the oil and filter. Done

Re: Piston Soak [Re: StevieC] #4559035
10/30/17 07:54 AM
10/30/17 07:54 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
And run a UOA on the old oil and watch the heads spin. LOL


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: StevieC] #4559060
10/30/17 08:27 AM
10/30/17 08:27 AM
Joined: Oct 2010
Posts: 5,287
Florida
Artem Offline
Artem  Offline
Joined: Oct 2010
Posts: 5,287
Florida
Seems there isn't a really healthy way of going about it with before / after sparkling results and before / after UOA showing no increased engine wear as a result.


2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart. (thanks Advance Auto Parts for the awesome deal)
Re: Piston Soak [Re: StevieC] #4559080
10/30/17 08:56 AM
10/30/17 08:56 AM
Joined: Oct 2017
Posts: 87
America
LaCocina27 Offline
LaCocina27  Offline
Joined: Oct 2017
Posts: 87
America
Originally Posted By: StevieC
As engines have "clear flood" modes where depressing the accelerator to the floor while cranking causes the ECU to turn off the injectors while cranking I can't see how excessive gas would cause a problem other than washing the walls and rings of lubrication which can be remedied as I described above if really concerned sort of thing. What I'm getting at is this excessive fuel in the cylinders could exist under real world conditions. Albeit not a lake of fuel but enough to wash the walls if the engine was flooded.

You could run the engine until it's warm, let it cool slightly and then fill the cylinders with fuel and put the spark plugs back in to stop evaporation. Then take them back out and crank over to rid the cylinder of excess fuel that is left.

The more I talk about this the more I think this might be a good idea for carbon. I just wish I had a carbon-upped engine to test it on but I don't at the moment. I do have a boroscope so I could record before/after pics.



I would guinea-pig that!

Re: Piston Soak [Re: StevieC] #4559085
10/30/17 08:59 AM
10/30/17 08:59 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
Do you have a Boroscope to take pictures/video before/after to share here?


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: StevieC] #4559100
10/30/17 09:21 AM
10/30/17 09:21 AM
Joined: Oct 2017
Posts: 87
America
LaCocina27 Offline
LaCocina27  Offline
Joined: Oct 2017
Posts: 87
America
Originally Posted By: StevieC
Do you have a Boroscope to take pictures/video before/after to share here?


I do not. frown

Re: Piston Soak [Re: StevieC] #4559104
10/30/17 09:26 AM
10/30/17 09:26 AM
Joined: Jan 2013
Posts: 1,846
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,846
Texas
Why not mix Seafoam or just some engine oil with the gas ? Or even 2 cycle oil ?

Hope I am never in need of such a treatment .

I agree , do this right before you change oil / filter .

Best of luck , :-)


Wyr
God bless
Re: Piston Soak [Re: LaCocina27] #4559113
10/30/17 09:40 AM
10/30/17 09:40 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
Originally Posted By: LaCocina27
Originally Posted By: StevieC
Do you have a Boroscope to take pictures/video before/after to share here?


I do not. frown


Darn, no way to measure the results... frown


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: WyrTwister] #4559115
10/30/17 09:40 AM
10/30/17 09:40 AM
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
StevieC Online content OP
StevieC  Online Content OP
Joined: Aug 2008
Posts: 18,706
Ontario, Canada
Originally Posted By: WyrTwister
Why not mix Seafoam or just some engine oil with the gas ? Or even 2 cycle oil ?

Hope I am never in need of such a treatment .

I agree , do this right before you change oil / filter .

Best of luck , :-)


Ihink that might take away from the solvent action IMO.


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Piston Soak [Re: StevieC] #4559172
10/30/17 10:28 AM
10/30/17 10:28 AM
Joined: Oct 2017
Posts: 87
America
LaCocina27 Offline
LaCocina27  Offline
Joined: Oct 2017
Posts: 87
America
Originally Posted By: StevieC
Originally Posted By: LaCocina27
Originally Posted By: StevieC
Do you have a Boroscope to take pictures/video before/after to share here?


I do not. frown


Darn, no way to measure the results... frown


I don't think the seat-of-the-pants test is total bunk.

Though, the smoke show could also be problematic!

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