£700 spent so far and still no solution!!!

[Bertiedabus]

Hi Folks can anyone help,
I always take my van to a local Classic VW specialist and they are stumped too.
I have a loud knocking coming from the rear of the van when I accelerate, does not knock when turning, slowing etc.
I have had both drive shafts and CV joints replaced (inc back plates as they had rusted out), I have had all breaks replaced, the guys at the garge have checked all nuts are in place and tight, the speedo is in place etc. But this noise is still carrying on. Mumbles about gear box and such like but no concrete conclusions, I am worried something really bad is going to happen..anyone had the same problems?
I have read the other posts re:knocking noises but most seem to be engined based and mine isn't.
Kind Regards
Alex

[Ian Hulley]

Is it as you release the clutch ? Can you feel it through the gearlever at all ? Gearbox nose mount ?

Ian

[Hacksawbob]

I have had both drive shafts and CV joints replaced

all 4 i.e. inner and outer? also double check tightness of CV bolts after 50 miles. rear wheel bearing might be on its way out? (or the carrier it sits in) but a half decent mechanic would spot that.

[California Dreamin]

It could be something as simple as engine mountings...who knows, it's just such a shame that garages use punters like you as a CASH COW! when I would be embarassed to charge anything UNTIL I had actually cured the problem.

Martin

[Oldiebut goodie]

I would examine the gearbox nose mount closely - maybe try a mate in the back with a hand on the floor pan above it to see if he can feel the knock there. Those mounts get a lot of punishment over 25+ years.

[Aidan]

and if in any doubt about the gearbox change the oil and see what the drain plug says

[billy739]

location in your profile may help.

i can pop round and take a look if your in gloucester.

is it a camper ? perhaps something loose in a cupboard! - would not be the first!

also something loos e around engine -

exhaust or gerabox mount ?

what engine do you have?

when did it start? after some recent work/ since you had the van?

[Bertiedabus]

Hi Guys,
Thanks for all ideas so far....answers to your questions.....Bertie is a 1.8 petrol 1985 camper high top.....we are in Cornwall....def not stuff in cupboards (did make me giggle)...I do feel like a cash cow for sure!!
Aiden..if is gear box, do you post out? What kinda price am I looking at for a gearbox?
Banging started about 4 months ago but is getting worse and worse, hence spending all the money on things it "May" be!
Does anyone know somewhere in Cornwall that may be able to help?
Kind regards to you all
Alex

[phil miller]

Not Cornwall but close ish, Abbey Garage in Tavistock Devon, the owner Glen has worked on VW's for years, has owned some T25s and runs a VW Audi indy gotta be worth a call (i also work for him )

[kevtherev]

VW never made a 1.8 engine for '85 Transporters...

[Bertiedabus]

1.9..sorry I got fat fingers!!

[leebo]

ive had this b4 on an old beetle i was at it for 2 months solid and i hope its the same problem
in the back tyres there was a lump of rubber and rust loose when i accelorated i could hear it but once it was spun up it dissapeard until i stopped and set off again
i know it sounds far fetched but this generally was the problem give it a go could be a quick fix

[Big Boris]

i had the same thing , knocking noise coming from somewhere and it turned out to be loose wheel nuts ! tne guy at the garage didnt nip them up after changing tyres he was most embarresed when i told him

[docklad]

VW never made a 1.8 engine for '85 Transporters...

bitchy and no help to author

[kevtherev]

VW never made a 1.8 engine for '85 Transporters...

bitchy and no help to author

neither is your post..at least mine is on topic, pot and kettle.