SOHC.co.uk Forums > CB750
TANK LINER REMOVAL
Simon46:
My tank spent 2wks with a hydrochloric acid blend in it a a vintage radiator repair shop in denton next to an ancient harleys tank having the same treatment. It worked but the guy must be 70-80yrs old. He did a 1959 tank for me about 30yrs ago with 50 holes in it. Brazed every one. If he retires it will be a sad loss
matthewmosse:
I would be tempted to first try a long soak in that nasty stuff, longer than overnight, failing that I'd resort to flushing thoroughly with hot water, removing cap and tap, then playing a blowtorch over it - see if that gets it peeling. - well ventilated area and a windy day so the wind carries fumes away, maybe a mask too. I've done soldering up rusty petrol tanks, and braze welding the holes, it works but is time consuming and braze welding does risk distortion, more do than soldering. After a few years I thought the tank was weeping so swapped it out for a spare I managed to source at a reasonable price ( about the value of the fuel it was full of) whilst using the repaired one. The braze welded tanks sat waiting for me to look if its worth having another go at.
paul G:
Still NOTHING HAPPENING >:( >:(
Nurse Julie:
--- Quote from: paul G on March 09, 2019, 03:11:18 PM ---Still NOTHING HAPPENING >:( >:(
--- End quote ---
NO NEED TO SHOUT
Order a new tank and then something will be happening ;D
AshimotoK0:
The only time I have stripped out a tank liner was on a 500K0 tank. Not for the faint hearted and definitely off the scale as far as PC and HSE is concerned. ;D ;D
I tipped two 1k tubs of caustic soda from the £1 shop into the fully dried out tank. Swished it around a bit and then at arms length I emptied a kettle of boiling water into it and dissapeared sharpish before the fury began. This is what came out when everything cooled off. I am not sure how old the liner was or what type it was and bike was a USA import.
For stripping epoxy potting in electronics I have used hot Tetrahdrofuran (THF) but not so sure that's available to the DIY market.
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