I'm in the middle of changing my valve seats and wanted to know a good way for removing the carbon build up.

I had the head degreased when they resurfaced it, but i had the valves in. Just saying .

I already have the valves out and am wondering what the best method for removing the carbon build up?

I'm debating break cleaner, oven degreaser?

-Shane

 

Glass bead is the fastest way as long as you cover the stems so they don't get hit.Then stick in a lathe or drill press and use scotchbrite with some wd40 to take the bead surface away and polish the heads.

Are you doing the machine work or a shop I would think they would have their own way of cleaning.

 

swarfega metal cleaner.

mix a 50/50 solution (swarf and water) stand the valves in it overnight.
take em out, most carbon will wipe away, some more stubbon bits will come off with a toothbrush type item.

jobs done, clean valves, still coated in oem black anti friction stuff etc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redsolturbo &raquo;</TD></TR><TR><TD CLASS="quote">swarfega metal cleaner.

mix a 50/50 solution (swarf and water) stand the valves in it overnight.
take em out, most carbon will wipe away, some more stubbon bits will come off with a toothbrush type item.

jobs done, clean valves, still coated in oem black anti friction stuff etc.</TD></TR></TABLE>


any in the US?

 

Good old fashioned wire brush wheel works wonders, just stay away from the valve stem itself.

 

no idea i work in a motor factors and get this stuff at company cost (ie: virtually free!)
im sure they sell it in the u.s or you guys have an equivalent of it, its basically metal cleaning acid ( a mild one) DONT use it on alloy heads though , only on inconnel/stainless etc

 

Brake cleaner and brush