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Cleaning Carbon Build Up On Pistons

PM-R33

By PM-R33,
in Engines & Forced Induction

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PM-R33 Grand Master

PM-R33

Posted
Posted

Had a quick search and couldn't seem to find an exact answer to this.

Just took the head off from the RB25 and figured i'd clean all the carbon build up on the tops of the pistons while the heads away. What's the best thing that will dissolve/clean away all the carbon? Metho? Kero? I have no idea...

Cheers

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tridentt150v Grand Master

tridentt150v

Posted
Posted

A soft aluminium scrapper, and sometimes a small screwdriver used as a peen tool and the carbon pings off [don't use it too hard, the idea is to shatter the carbon not mark the piston]. Used correctly both tools will remove carbon without damage. Then your stuck with carbon soot falling down between the piston and the bore and sitting on the top compression ring, but it shouldn't last long once you start it up again.

PM-R33 Grand Master

PM-R33

Posted
  • Author
Posted
I've heard Water Meth Injection will do the job nicely..

Haha i was actually thinking then when i saw how much crap there was on top of the pistons.

Ill try some of the suggestions, thanks a lot guys.

STATUS Grand Master

STATUS

Posted
Posted (edited)

becareful not to go too silly, if the engine has some kays on it and you get aggressive and dissolve the carbon build up around the ring (lands, etc) etc it will blow smoke......

Edited by URAS
PM-R33 Grand Master

PM-R33

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Posted (edited)

Oh ok, cheers Trent. Im getting the head done at that Lewis engines place that you mentioned in Adelaide, see how it goes. You end up getting a head off of them?

Edited by PM-R33
STATUS Grand Master

STATUS

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Posted
Oh ok, cheers Trent. Im getting the head done at that Lewis engines place that you mentioned in Adelaide, see how it goes. You end up getting a head off of them?

im building a pretty crazy 26 atm for a customer so i should be sending one over there (mine) to test the waters first in about a fortnight or so..

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