my transit is vibrating

[Luke]

is it possible to grind the welding down?
or make a new welding?

yes it is - it really needs machining off, splitting and the joints cleaned up and re-welded

any propshaft place should be able to do it

[baconsdozen]

Agreed,grinding the welding might mean it will be balanced but it would be safer to get someone to take it apart and weld it back together again properly.I've seen what happens when a prop breaks,it isn't pretty.

[noise]

is it ok to drive the transit if i drive in 50km/h? (it dont vibrate in that speed)
i need to transport some big things

im gonna ask a guy who works whit trucks & tractors if he maybe can help me whit my prop shaft he has a workshop with big machines.

[FredTransit]

There is a danger that even if it doesn't break, the vibration might damage the diff (rear axle). We had a UJ go in France, so had no choice but to drive home. The diff went within the year.

[Luke]

is it ok to drive the transit if i drive in 50km/h? (it dont vibrate in that speed)
i need to transport some big things

depends how far you want to drive
it would be quite serious if it snapped - i would let this guy look at it 1st he should be able to tell from closer examination how good the bad welding is there is no doubt it needs to be put right but you might be ok to drive a short distance

[noise]

There is a danger that even if it doesn't break, the vibration might damage the diff (rear axle). We had a UJ go in France, so had no choice but to drive home. The diff went within the year.

ok, can i see if my diff is damaged? i dont know how long the previously owners have driving with the bad prop shaft

i have also fond a little little play in the first/front UJ

[noise]

i have bought a "new" propshaft for 14£
i have testdrive my transit and the vibrations is nearly gone, but i think if change the uj´s and the bearing i get rid off remaning vibrations.
(the new prop shaft has been lain outdoor for some years)

[FredTransit]

There is a danger that even if it doesn't break, the vibration might damage the diff (rear axle). We had a UJ go in France, so had no choice but to drive home. The diff went within the year.

ok, can i see if my diff is damaged? i dont know how long the previously owners have driving with the bad prop shaft

i have also fond a little little play in the first/front UJ

The first sign you will get is some kind of new noise (not to be confused with axle/diff whine which is common in transits!) like screeching and or grinding.

[noise]

like screeching and or grinding.

ok but i have a sound like that

[FredTransit]

Is it an old noise? Or did it come on recently?

[baconsdozen]

You said the original prop was to join a volvo box to transit axle.Did you find a secondhand prop to do this?.

[noise]

Is it an old noise? Or did it come on recently?
Is it an old noise? Or did it come on recently?

i think i have had it since i bought the transit in the spring.
but i am not shure if it came after i changed the oil (cheap hypoid 80/90w GL-5 oil).
maybe the previously ovners have damage the diff by driving whit the bad propshaft.
the noise have not got any worse during the summer.

You said the original prop was to join a volvo box to transit axle.Did you find a secondhand prop to do this?.

no but i tested the rear/second part of the prop,
i´m going to modify the first to fit the volvo box

[noise]

now i have get a new balanced propshaft, it feels a little better but the van is still starting to vibrating in 70km/h

i guess its some problem whit the rear axel (its the only thing i havent replace), can i fix it or should i bougt a "new" one?
how can i check if its ok or bad?

[FredTransit]

Before you do a whole axle swap, check the bolts are tight and on the Mk2 there is a square spacer (like a square U shaped washer) between the end of the prop and the diff, this can work loose and drop out. This is ongoing with one of our vans, and you get a vibration on setting off that you can drive though at about 25.

[noise]

today i lifted upp the rear of the van to check the rear axel and prop shaft. when i started the engine i saw that the pinion flange was going upp and down so i guess it could be the problem.

can the old "out of shape" prop has bent the pinion?