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Help please. Odd knocking sound from under van. Travelling F

Posted: 18 Aug 2017, 16:47
by IndigoSteve
Need a little help please. Travelling across France at the moment and for the last two weeks the van has not missed a beat.

He is a Westy T25 1984 water cooled 1.9 petrol.

When driving today I noticed a knocking / thumping noise from under the van. It's enough to feel vibrations through the floor.

It completely disappears when I press the accelerator and comes back as soon as I lift off.

It doesn't matter what speed. The frequency increases as the speed builds but no matter what speed, as soon as I hit the gas it disappears.

It sounds a little like a flat tyre. Flipping noise is the best way I describe it. It's getting louder over the last 7-8 miles.

Any advice appreciated.




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Re: Help please. Odd knocking sound from under van. Travelling F

Posted: 18 Aug 2017, 17:41
by marlinowner
i would check the drive shafts to make sure everything is tight, the bolts can loosen and fall out.

Re: Help please. Odd knocking sound from under van. Travelling F

Posted: 18 Aug 2017, 18:49
by Oldiebut goodie
As above, check them carefully especially the outer ones that people don't seem to be able to torque up fully for some reason.
Been there and done that. :oops:

Re: Help please. Odd knocking sound from under van. Travelling F

Posted: 18 Aug 2017, 19:31
by IndigoSteve
Thx for the quick reply. It was my rear wheel almost falling off. All the bolts had come loose


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