Re: Vacuum Tank

Posted by John Payne On 2016/9/21 6:16:55

I've had a look at the substance poured out of the vac tank but I can't determine for certain what it is. Unfortunately I'd put it in the motor oil drain pan and it had mixed somewhat with a little residual sump oil. I can say it is of a light consistency and brown in colour, which does suggest to me it could well have started out life as brake fluid. Apart from mixing with a very small amount of sump oil, it is possible that it also has mixed with surface rust inside the vac tank, assuming that rust does actually exist in there.

Based on Fred's guesswork, I'm now thinking that it probably is old brake fluid which has found its way into the tank when the old BTV gave up the ghost, and has lived comfortably in there for the last 6.5 years. It's been cleaned out now and the tank resoldered and refitted. Cheers, John