| [ Total Views: 654 | Total Replies: 5 | Thread Id: 6091 ] |
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 Yogibear
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 posted on May 7th, 2003 at 12:21 PM |
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Cylinder head carbon build up.....
Hi Guys,
I pulled my cylinder heads off last night and heads being heads there is a heap of carbon (black) build up in there. What is the best way to get rid
of this stuff?
Some of the exhaust valves are stuffed also....but I am heading up to Brisvegas next week so will be able to fix that with a quick visit to Micks!
Cheers :bounce
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 Bizarre
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| posted on May 7th, 2003 at 12:46 PM |
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a good fix would be to pack em up and send them off to V Force for a fix up. New valves, 3 angle valve grind and send you manifolds and get them match
ported.
Measure your deck height so as you can calculate your compression ratio and get the heads fly cut to give you about 8.?:1
Do this to a 1600 and it will be a nice motor. Cheaper than new heads and a mile better.
Futue te ipsum!!!
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lugnuts
A.k.a.: Mike
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| posted on May 7th, 2003 at 01:49 PM |
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I bought some 2nd hand heads and mine even had the intakes practically blocked by carbon,take your bare heads get them glass bead blasted they will
look like new and so beautiful,allow 2 days for this,then take them over to Head Jobs Unlimited at Ashfield with your new exhaust valves and your
intakes,they know what there doing so just give them a couple a hundred and your laffin,another 2 days for this.:thumb |
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lugnuts
A.k.a.: Mike
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| posted on May 7th, 2003 at 01:58 PM |
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Or if your in a hurry a small wire brush on an electric drill works fine too,takes all the carbon off leaves the head shiny.A small brush is needed to
get in the tight spots. |
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 vw54
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| posted on May 7th, 2003 at 06:30 PM |
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Depends on how much carbon is in there but i would say that your engine
has not been IN TUNE for some time and neglected.
After its rebuilt make sure you have correct timming and fuel air miture ratio.
yeah glass bead blasting will remove all the crud...
have you removed the valves and is ther heaps of carbon in the ports
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70AutoStik
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| posted on May 7th, 2003 at 11:03 PM |
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Some pretty rough methods there - a wire brush is more than likely to do damage.
Scrape the bulk off with a wooden implement, then soak them in diesel a few days... Scrub them with a nylon scourer and rinse in water (then lots of
air to dry and clean them off) to keep them in good condition.
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lugnuts
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| posted on May 8th, 2003 at 02:35 AM |
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I tried the wire brush with the drill no probs,cylinder heads are pretty hard.:thumb |
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Andy42
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| posted on May 8th, 2003 at 07:02 PM |
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If you use the wire brush with the softer type bristles(steel) or the brass type ones it is fine to clean up heads with. |
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vwrallycar
A.k.a.: Andrew Rankin
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| posted on May 8th, 2003 at 08:28 PM |
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to reduce carbon build up dont use LRP if your using it but instead go for premium unleaded
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