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11-29-2012, 03:36 PM
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#1 (permalink)
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Senior Member
Join Date: Oct 2010
Location: Charlotte/Harrisburg NC
Posts: 722
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Hard as a Rock
How in the bleep do you get crystalized burnt on carbon off exhaust valves? That's my last problem before I can start puting it all back together. Everything else should fall into place.
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11-29-2012, 05:19 PM
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#2 (permalink)
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Senior Member
Join Date: Mar 2012
Location: florida
Posts: 1,347
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Try soaking overnight in brake cleaner, and a wire brush. Kerosene may also work.
It may be that the only purpose for your life is to serve as a warning to others.
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11-29-2012, 08:46 PM
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#3 (permalink)
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The world needs guts
Join Date: Apr 2012
Location: East Texas
Posts: 960
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A wire wheel buffer.
__________________
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First they came for the Doberman Pinschers and I did not speak out because I did not have a Doberman.
Then they came for the German Shepherds and I did not speak out because I did not have a German Shepherd.
Then they came for the Rottweilers and I did not speak out because I did not have a Rottweiler.
Then they came for mine and there was no one left to speak out for me.
Is your breed next?
Stop BSL now!
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11-30-2012, 05:11 AM
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#4 (permalink)
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Greasy Member
Join Date: Jun 2008
Location: In my garage!!
Posts: 25,356
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You can:
1.) Soak in Seafoam
2.) wire brush on drill/scuffy pad on die grinder, but stay away from valve edge where it contacts valve seat, unless you're regringing the valves.
3.) we used to tape the stems off with duct tape, and bead blast them. However, they were also being recut.
__________________
__________________________________________
Football Season is over....
“When the going gets weird, the weird turn professional.” ~ Hunter S. Thompson~
Praise the Lowered!
11 year A.M.A. member.
4 year PA ABATE member.
RIP Rick Massey: AKA-Rubberdown. Godspeed, 02-02-12.
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11-30-2012, 05:41 AM
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#5 (permalink)
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Senior Member
Join Date: Oct 2011
Location: Norman OK
Posts: 749
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Seafoam works great, I've even used WD-40 and it works pretty good.
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11-30-2012, 06:18 AM
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#6 (permalink)
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Retired citizen
Join Date: Jun 2009
Location: Pt. Wash.,WI
Posts: 10,725
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I use my bench grinder wire wheel and Scotch pads with my die grinder. Both methods work equally well.
__________________
Disclaimer : Don't believe anything I say unless you are absolutely sure that I know what I'm talking about .
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11-30-2012, 07:17 AM
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#7 (permalink)
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Senior Member
Join Date: Oct 2010
Location: Charlotte/Harrisburg NC
Posts: 722
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I have already cleaned all the carbon off the heads and intake valves - they cleaned up very nicely. The face of the exhaust valves are another story. Seafoam, WD-40, carb cleaner, contact cleaner, paint stripper, naptha, nothing has cut it yet. It is harrrrdddddd.
I put an old sparkplug in the heads, turned them valve face up, tilted them so that the face of the exhaust valves would be submerged and soaked them using the above solvents to try to soften them, but no luck in the time I had so far. They probably soaked for two hours in various solvents.
When I take the valves out of the heads, I will try mechanical means to clean them.
Thanks for everybody's input.
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11-30-2012, 08:04 AM
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#8 (permalink)
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Retired citizen
Join Date: Jun 2009
Location: Pt. Wash.,WI
Posts: 10,725
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Oh, I thought you already had the valves out ! Cleaning them installed in the heads would be difficult to say the least, I guess you already figured that out !
__________________
Disclaimer : Don't believe anything I say unless you are absolutely sure that I know what I'm talking about .
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11-30-2012, 08:17 AM
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#9 (permalink)
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2008 Heritage
Join Date: Jun 2011
Location: Pensacola, Fl
Posts: 347
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Would really like to know what works.
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11-30-2012, 08:18 AM
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#10 (permalink)
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Greasy Member
Join Date: Jun 2008
Location: In my garage!!
Posts: 25,356
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Quote:
Originally Posted by bikedelic
I have already cleaned all the carbon off the heads and intake valves - they cleaned up very nicely. The face of the exhaust valves are another story. Seafoam, WD-40, carb cleaner, contact cleaner, paint stripper, naptha, nothing has cut it yet. It is harrrrdddddd.
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Which is basically......Seafoam.
Compare the MSDS sheets.
__________________
__________________________________________
Football Season is over....
“When the going gets weird, the weird turn professional.” ~ Hunter S. Thompson~
Praise the Lowered!
11 year A.M.A. member.
4 year PA ABATE member.
RIP Rick Massey: AKA-Rubberdown. Godspeed, 02-02-12.
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