Whats the best way to remove carbon deposits from inside the manifold before welding? I was thinking of putting it on the brazier, burn it off.
kazbanz,
Sep 21, 7:00pm
There used to be a really nasty chemical mix to clean out two stroke exhaust pipes. From memory it was Hydrocloric acid.
cabrio1,
Sep 21, 7:21pm
Hmm, caustic soda? After the big heat.
poppy62,
Sep 21, 7:23pm
Sand blasting!
cabrio1,
Sep 21, 7:30pm
Burn it Blast it Chem etch it It's a small crack, I think it's repairable, I'd like to install an egt sensor at the same time.
bigfatmat1,
Sep 21, 7:54pm
I spilt a 20l of hydrochloric acid in my garden shed next day there was a 1m × 1m rust hole in the side.
yz490,
Sep 24, 10:15am
Think it was my Toyota Grande 2 liter single cam i 'arc welded' the exhaust manifold. Had a great old guy [bout my age lol] who gave [sold] me the right rods [came up a golden colour by memory] & was nice to weld with. By memory i just got the angle grinder & ground it up clean.Was a bit of an issue with that motor i think. Had two of those cars [early "80's cars] & body rusted away before the motor gave up.
regy_2005,
Nov 15, 2:03am
Drill 1/16 hole end of each crack , stops it spreading
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