Bad Vibrations!

Technical questions and answers about the Mazda Bongo

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Bad Vibrations!

Post by manners » Sun Aug 12, 2007 12:28 pm

When reaching the late 60's mph my Freda starts to vibrate but not the steering wheel? the doors get such a rhythm going that they come away from the top seal about 5mm the sat nav on the front window starts to wobble i can even feel it through the seat. when i reach 80 it calms down a bit (tested on private track :lol: ) any ideas could it be something to do with the prop or drive shafts?

cheers manners
trevd01

Post by trevd01 » Sun Aug 12, 2007 12:33 pm

This is a common problem usually caused by the front wheels not being balanced correctly.

First place to start is having your front wheel balance checked. We had to have ours done twice to get rid of the wobble.
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Post by manners » Sun Aug 12, 2007 12:39 pm

It had new tyres on it just before i bought it and the balancing weights are shiny and new, it doesn't seem to be coming through the steering wheel if i loosen my grip it doesn't shake anywhere near as bad as everything else.
trevd01

Post by trevd01 » Sun Aug 12, 2007 12:51 pm

Still worth getting the wheel balance checked, I would have thought - it is likely to be a much cheaper option than anything more serious to do with drive shaft joints, etc.

As I said we had to have ours re-balanced - in our case despite new tyres and new weights.
Last edited by trevd01 on Sun Aug 12, 2007 2:01 pm, edited 1 time in total.
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dreamwarrioruk
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Post by dreamwarrioruk » Sun Aug 12, 2007 1:47 pm

the wheels need to be balanced by the centre hub and not by the studs.ours had the same problem but it went straight after i got them rebalanced properly
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Post by manners » Sun Aug 12, 2007 1:56 pm

thanks for your help wheel balance it is then :)
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Post by kawasaki kid » Sun Aug 12, 2007 2:00 pm

Get your wheels balanced and your tracking checked at the same time as I had the same problem and ended up getting both done to solve the problem, are you running on steel or alloys :?: as some after market alloys can be a nightmare to balance.
If I had all the money I ever spent on my Freda ............ I`d spend it on my Freda.
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Post by dandywarhol » Sun Aug 12, 2007 5:52 pm

dreamwarrioruk wrote:the wheels need to be balanced by the centre hub and not by the studs.ours had the same problem but it went straight after i got them rebalanced properly
I've always found the stud hole method better dreamer..........they seem to be perfectly concentric - the centre isn't guaranteed to be :?
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Post by dreamwarrioruk » Sun Aug 12, 2007 5:56 pm

hey wooops i got it the wrong way round. sorry
Ame

Wheel wobble

Post by Ame » Sun Aug 12, 2007 6:40 pm

I have 18" alloys (fitted when i bought it) and have had them balanced twice and the tracking checked.
Still at 60mph I feel a wobble.
Can anyone give further details on the importance of the 'central hub' fitting?
Is it possible to buy/fit spacers to ensure a good fit?

Cheers, Ames
Pz
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Post by westonwarrior » Sun Aug 12, 2007 6:46 pm

Its possible you may need to check your drop links
they can cause wobble too

also I remember some one posting that they swapped the front wheels and that cured it
john and jue

Post by john and jue » Sun Aug 12, 2007 7:08 pm

check your wheel nuts are right for the wheels and that there is a spigot that fits the hub
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