Club 80-90 Forums

But have you checked the voltages with the engine running and under load with and without the engine running  Alternator or wiring?      Easy to establish      Take a voltage reading at the alternator ( using the casing as neg )   If you have less than 14v between the alternator output and the casin...

The difference between 12.8v and 14.5v just making the difference i guess 

Either ignition switch or feed to it 

Its a DG , there should be two big (red) wires that go on the same connection( one from the alternator, one from the battery ) and the small trigger wire onto one ( it matter not which ) spade connection 

I think you need someone to help you , unless you have a multimeter and know how to use it , in which case we can guide you through it  without knowing what set up you have its going to be hard to say much more at this stage  normally you would have a alternator triggered relay joining the main van ...

Some were glued , you’ll need a sharp blade and some heat iirc 
its doable, but will add time to the already long job 
 

Big experiment, you need to change the petrol tank

You mean a DH ? VW did that too ……

Petrol WBX have a known weak link in the charge circuit as they age , the main wire from the alternator to the starter motor ( and thus to the battery ) rots internally , goes high resistance and eventually breaks down completely , meaning you have charge coming out of the alternator but not much ( ...

Sounds like they fitted a early DG , which didnt have the second oil pressure sender , which would be located between the water pump pulley and the top of the oil filter housing

Squirt some brake cleaner or WD40 on and around rather vac pipes and inlet manifold , if the revs rise there is a leak

How much pressure were you using ??
Is the oil missing of the dip stick?
You didnt bother to tell us what engine ? Oil cooler failed?

AGM is lead acid , Absorbent Glass Mat , it’ll be fine, although it may not charge as fully as a traditional wet plate battery , but no lead acid battery fully charges on an alternator anyway .

Too lean too much air ? Or possibly not running on all cylinders properly .