iv got the head off my mini at the moment to change the valve stem seals,, while i am at it i want to decoke the head as its really full of chunks of crap.. possibly why the engine keeps running on a bit after a good blast down the motorway. anyway what methods do you guys use to decoke the head interior, valves etc... i understand the surfaces want to be left unscratched as possible??
cheers
Decoking Head And Tops Of Pistons
Started by
THedooBZ
, Jan 20 2009 07:30 PM
10 replies to this topic
#2
Guess-Works.com
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Posted 20 January 2009 - 07:36 PM
12 hours in the dip 
#3
WiredbyWilson
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Posted 20 January 2009 - 07:45 PM
wire attachment on drill works ok. think you can buy packs of them in halfords (fat / thin ones)
#4
twiglett
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Posted 20 January 2009 - 07:49 PM
wynns carb cleaner on a scouring pad
although make sure you wear proper rubber gloves otherwise you will end up with hands like your great great great grandad
(dry yet still wrinkled)
plus there is not much chance of a plastic scouring pad scratching a metal surface.
although make sure you wear proper rubber gloves otherwise you will end up with hands like your great great great grandad
(dry yet still wrinkled)
plus there is not much chance of a plastic scouring pad scratching a metal surface.
#5
Surfbluegarage
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Posted 20 January 2009 - 08:09 PM
wire brush attatchments for me always. but it your takin the valves out put them in a drill chuck and use sum emery cloth to decoke them.. best way ive found.
#6
rozzer1275
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Posted 20 January 2009 - 08:09 PM
wire brush on a drill,
#7
Shifty
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Posted 20 January 2009 - 08:23 PM
Personally I'd be a little concerned about using a wire brush on a drill,especially the cheapo ones.
Stray bristles could cause some damage.
Stray bristles could cause some damage.
#8
WiredbyWilson
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Posted 20 January 2009 - 09:48 PM
Personally I'd be a little concerned about using a wire brush on a drill,especially the cheapo ones.
Stray bristles could cause some damage.
Well a good wash through with brake cleaner or similar sorts that double S - or a good old blow
#9
THedooBZ
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Posted 21 January 2009 - 06:26 AM
thanks for all the replys guys.
guessworks - what kind of dip do you mean??? i.e. what chemical to leave it to soak in?? also do you mean i could do the hole head with this method??
wilson 1275 - i thought a wire brush may be too viscious?, do you mean use brake cleaner as the chemical cleaning agent??
cheers
guessworks - what kind of dip do you mean??? i.e. what chemical to leave it to soak in?? also do you mean i could do the hole head with this method??
wilson 1275 - i thought a wire brush may be too viscious?, do you mean use brake cleaner as the chemical cleaning agent??
cheers
#10
philc
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Posted 21 January 2009 - 08:45 AM
you could use a small sanding wheel, less harsh than a wire brush
#11
WiredbyWilson
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Posted 21 January 2009 - 08:52 AM
well the thing to remmeber id the head is cast so a wire brush attachemnt on a drill can't do that much!!
or maybe a bit of emry cloth and your finger
or maybe a bit of emry cloth and your finger
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