Vibration at 30mph

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adi999999999
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Vibration at 30mph

Post by adi999999999 » Fri Oct 08, 2021 8:10 am

Morning, just recently my van has developed a vibration at about 30mph it is fine slower or faster. I have checked all the usual, tyres, balancing, etc. Any ideas, it is a diesel..Thanks
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Northern Bongolow
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Re: Vibration at 30mph

Post by Northern Bongolow » Sun Oct 10, 2021 11:29 pm

Propshaft ?
adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Mon Oct 11, 2021 8:07 am

Thanks for the reply, how would I check?
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Northern Bongolow
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Re: Vibration at 30mph

Post by Northern Bongolow » Mon Oct 11, 2021 11:55 am

Literally just grab the prop and try to twist it or lift it.
You don't say if it's 2 wheel or 4 wheel drive.
2 wheel drives are know to wear the prop the uj joints fail.
4 wheel drives are also known to knock.
On the back of the gearbox is a big lump of rubber, this is an anti vibration damper, make sure this is still in place.
adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Mon Oct 11, 2021 1:31 pm

Thanks,it is a 4WD
Ian
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Re: Vibration at 30mph

Post by Ian » Mon Oct 11, 2021 6:00 pm

If 4WD make sure your tyres are the same size all round.
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adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Mon Oct 11, 2021 6:23 pm

Tyres ok, front prop has a small amount of play, can I run it ok without, just to test,
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Re: Vibration at 30mph

Post by Bob » Mon Oct 11, 2021 8:46 pm

Pretty sure you can, worth trying a search as I'm sure it's been talked about in the dim and distant past. 8)
adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Mon Oct 18, 2021 12:39 pm

I can't figure it out so it is booked into the garage on Friday
adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Mon Oct 25, 2021 9:22 am

2 universal joints require replacement, this is all they could find, so once replaced hopefully that will resolve the issue
adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Wed Nov 03, 2021 10:54 am

Garage phoned yesterday to say that the universal joints supplied do not fit, looking online and speaking to various suppliers, they all say the ones I have should fit, did Mazda ever fit a different prop shaft at any point, the caps on the supplied ones are 26.5 mm diameter but the ones fitted on my bongo are 24.1mm?
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Re: Vibration at 30mph

Post by rita » Wed Nov 03, 2021 2:42 pm

adi999999999 wrote: Wed Nov 03, 2021 10:54 am Garage phoned yesterday to say that the universal joints supplied do not fit, looking online and speaking to various suppliers, they all say the ones I have should fit, did Mazda ever fit a different prop shaft at any point, the caps on the supplied ones are 26.5 mm diameter but the ones fitted on my bongo are 24.1mm?



Yes some were fitted with the 78.40x24.1 , check the length to verify ..
adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Wed Nov 03, 2021 5:07 pm

Thanks, any idea where I can get some from?
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Re: Vibration at 30mph

Post by Ian » Thu Nov 04, 2021 9:15 am

If you let us have the chassis number of your vehicle we will see if we can track some down for you.
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adi999999999
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Re: Vibration at 30mph

Post by adi999999999 » Fri Nov 05, 2021 7:56 pm

Hi, thanks for the offer, but I have sorted the issue by getting hold of another prop that will take the UJ,s I have
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