transit alternator unit at rear cant find anything on it ?

[transitrecovery]

Hi everyone whilst searching google for problems with my transit it kept coming accross articles from here so thought it would be a good place to sign up to i have had many transits over the years am familiar with most transit related problems. I have a 1993 K Reg recovery truck a very nice example to aid my car sales business, its the banana type engine, one question i am going to shortly replace the alternator as the light keep flickering on and stays on if i rev it a lot it goes out and seems to have a mind of its own, its now noisy as of today so i am presuming thats the problem.

But whats the unit on the back of the alternator with a braded metal pipe running to the engine ? and what does it do?

[MrMPuk]

Vac pump is the unit on the back of the alternator.

[transitrecovery]

thats what someone i know thought it was i take it its for the brakes cos it sounds noisy but i take it its not attatched to the alternator and i take it that its the alternator that is noisy not the vacuum pump lol

[Nadjenka]

There is the alternator on the left, you can see the vac pump is attached to it at the back What kind of noises

[transitrecovery]

its sort of whirring sort of noise which could sound like a bearing sort of noise and maybe even a small rattling sort of noise in there somewhere? sorry best way of describing it!

[ake]

It could be the alternator or the vac pump causing the noise

[MinorMatt]

Unbolt the vacuum pump (3x10mm headed bolts) and take the fan belt off. Spin the alternator - if its noisy you know where the noise is, if not its probably the vac pump

[transitrecovery]

this problem is sorted the new alternator came with the vacuum pump, its now all good lovely thanks for your help everyone!