Rear wheel bolt 'threaded' (1 Viewer)

[joggerman]

I was checking that my wheel bolts were tight before returning home from a short break, and found that one of the rear bolts just kept turning. It seems that that the thread in the hub has stripped.

This is the first time I have checked this as I only got the MH in January. I only used the hand wrench so it is not something I have caused.

Am I looking at a new hub (as one repairer has said at a cost of £300 +, if the bearing needs replacing), or is there some other way to re-thread the hub?

I will obviously be contacting the dealer I bought from for a solution.

 

[vwalan]

a good machine shop can make an insert with the thread you require . will require drilling and tapping .easy job.

 

[VMax666]

TimeSert or Helicoil would be the cheapest if you can find a garage with a kit in stock. Probably depend on size and thread, but there are people who specialise in them. VMax

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[joggerman]

TimeSert or Helicoil would be the cheapest if you can find a garage with a kit in stock. Probably depend on size and thread, but there are people who specialise in them. VMax

1. Would this be done without removing the hub, and possible damage to bearing?
2. Do these reqiure drilling out of the hub?

This is a new technical area for me, so my knowledge is very limited.

 

[vwalan]

i never go on a big trip without time sert from wurth . every thing depends on the thread size /pitch. possibly be done in situe. time sert would be better than helicoil. speak to a local machine shop there must be one near you. if you were in cornwall if i couldnt fix it there is a m,shop at the end of the road .either in place or take the hub off . you probably have 4 other bolts i wouldnt worry too much.

 

[VMax666]

Personally prefer TimeSert to Helicoil, but it will depend on who has the correct size.
See here http://www.timesert.com/html/faq.html
.VMax

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[hilldweller]

1. Would this be done without removing the hub, and possible damage to bearing?
2. Do these reqiure drilling out of the hub?

This is a new technical area for me, so my knowledge is very limited.

Helicoil was my first thought too. What it is a hard steel spring, a coil. So you drill out the original damaged thread a size bigger, tap it and then insert this spring which brings it back to original size.

You need to strip down enough so the swarf can be clears, that's all. Hard part is finding a good place to do it.

 

[wireman]

are you sure its not just a security nut that needs a special tool to undo it.....?

 

[vwalan]

problem i see is helicoils have a habit of coming out if the bolt is done very tight .time sert use a mecanical grip system and are rare to pull out at a later date.
i have a metric set for bolts and various spark plug sizes .
also helicoils shame op isnt local .
time sert are the ultimate thread insert .

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[rainbow chasers]

Can you not source a replacement stud?

That way, just tap it out with a hammer through the hub, and then tap a new one back through - fairly easy!

 

[hilldweller]

Personally prefer TimeSert to Helicoil, but it will depend on who has the correct size.
.VMax

We live and learn. New one on me and does look good. I hope I never need one.

 

[VMax666]

Brian, buy an old Brit bike and you won't need one. Dozens maybe! Vmax

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[vwalan]

brian i have used both ,even fitted in situe with spark plugs . very common on aluminium heads like m,cycles and vw beetles .if you are very unlucky a bit of swarf may stick to a valve seat but very rare. used timeserts to hold a scania gearbox to engine when threads stripped on engine while doing a clutch. most threads on a porsche have them as standard. the big kits are expensive but woth it in the garage saved hours of time and so easy to use.

 

[pappajohn]

are you sure its not just a security nut that needs a special tool to undo it.....?

my first thought also :thumb:

unusual for the hub thread to strip as it should take considerably more torque than the recommended tightening torque without stripping.

 

[hilldweller]

Brian, buy an old Brit bike

Do I look that stupid ?

No way, I lived through Brit cars and Brit bikes. Yes I look longingly at the old stuff sometimes but then, luckily, the grey cells waken up with "have you forgotten the pain when they were new ?"

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[VMax666]

Give these people a ring. They have done some excellent work for the company I worked for. Link Removed

.VMax

 

[vwalan]

hi brian, or anybody who plays with cars m,cycles ,google wurt time serts there is a u tube video of time serts being used . you may find the use of a set. normally bought from wurth direct .they have big shops abroad. wurth make/sell lots of things you cant always find.
good quality tools as well. cheers alan.

 

[joggerman]

unusual for the hub thread to strip as it should take considerably more torque than the recommended tightening torque without stripping.

I agree. Someone must have used a very long lever at some time to strip the thread.
Still, it has happened so I need a solution.

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[Wildman]

the studs are normally pushed through the hub and held by splines not screwed in. Just press it out and replace with a new one, if the splines are stripped the only option may be to either bodge it by welding it in or replacing the hub. no reason for the bearings to get damaged at all and even if they were are not expencive.

 

[joggerman]

the studs are normally pushed through the hub and held by splines not screwed in. Just press it out and replace with a new one, if the splines are stripped the only option may be to either bodge it by welding it in or replacing the hub. no reason for the bearings to get damaged at all and even if they were are not expencive.

It does not have studs.
It has bolts which pass through the wheel and screw into the threads in the hub.

I have had two separate quotes, both about £70 + vat for bearing, £140 + vat for new hub, £120 + vat labour.
Sounds expensive to me, thats why I am considering the helicoil which some have suggested.

 

[Wildman]

It does not have studs.
It has bolts which pass through the wheel and screw into the threads in the hub.

I have had two separate quotes, both about £70 + vat for bearing, £140 + vat for new hub, £120 + vat labour.
Sounds expensive to me, thats why I am considering the helicoil which some have suggested.

scrap yard replacement then.

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[Geo]

Helli coils and Timeserts are marvelous things they are one of the best get you out the s**t inventions ever
But they have a place in life
and holding wheels on is not one of themoh:
Bite the bullet and sleep at night get a replacment hub
Geo

 

[pappajohn]

Agreed Geo......you wouldnt use a washing line to tow a car.....or would you ?????

 

[vwalan]

think you might find that a properly fitted timesert will exceed the fitting of a wheel bolt.but i dont put much faith in an helicoil. having said that i would have to see the hub and make sure it was a correct fit. it could be overcome by a machine shop or even welding and drill/tapping a new hole.

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[Geo]

I think you will find Timesert offer no gaurantee as to torq or pull efforts the the device will toletrate

 

[vwalan]

hi, as its only 1 out of possibly 5or 6 bolts i wouldnt worry . if it was 2,3,4 needs replacing i would say get a new hub. i can say there is nothing wrong in the suggestion to get one now .
as the old story goes when you lose a wheel and cant find the bolts what do you do? take one from every other wheel and drive home. it works ,with caution.
even the new hubs let you down so even thats a risk. cheers have fun . alan.

 

[joggerman]

A Cautionary Tale

To give everyone an update....

Got onto the dealer ( CamperUK-Geist Direct ), and asked if they could sort it out.

I said that since picking up the van (4 months ago) I had checked the tightness of the wheel nuts once using only the small wrench which comes with the vehicle kit, which is when I discovered the stripped wheel thread.
They said that everything was checked before the van left the premises, saying that it would take an enormous pressure to strip the thread. Apparently I should have checked all the wheel nuts before leaving with the van.
So I will have to pay up for the repair myself, total about £350 for a new hub including a possible new bearing if it cracks.

The moral of this tale is check 'everything' which is regarded as wear and tear (how are we supposed to do this), before leaving the dealer, as these will not be covered under the warrantee.

I have also been told by some repairers that the helicoil type solution is not safe for a wheel repair. Any opinions on this?

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[vwalan]

personaly i wouldnt use a helicoil .i would use a time sert by wurth . i would be carefull doing it up afterwards . i,m sure there are atleast 4more bolts holding it. and even the original hub is likely to strip as that one did so take your choice .
if you fit a new hub atleast there would be no come back in a incident.
buy new fit new is what i was told at tecnical college cant really argue with that statement really .
cheers alan.

 

[Peter James]

I also think there would be enough safety margin to drive on normal roads with 4 bolts instead of 5 - providing the other 4 are in original condition. But since one has been weakened somehow, I would worry the others might have been weakened as well.

 

[vwalan]

what about all the rest ?they all could be ready to drop off . could be a manufacturing fault .thousands of wheels falling off all the time .hee heee
dont believe me .i,m only joking. cheers alan.

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