dont loctite

[loosenuts]

If you loctite a bolt that is not loctited by bmw you are changing specifications , you may have absolutely no legal standing if something happens in connection with these bolts. They could simply say you should have reported it to us first. In my opinion you should check them mark them and report them to bmw if they come loose. Then bmw cannot blame you, I presume they would simply have to address this problem, rectify, or refund.

Also one could be led to believe that using non approved lubricants on bolts could cause over tightening , as more force could be used to tighten said bolt than is necessary which I suppose could stress and stretch the then over torqued bolt..

If in doubt about which products to use and which ones are approved ,get it in writing from your dealer so you have evidence, don’t assume that if they do it you can.
I as you know, if you have read “loose nip bolts update” , fitted givi because I thought they were approved because my dealer offered to fit them , now they are saying they cant guarantee stability even though I believe the crash was caused by the loose bolts.

If you are at all unsure of statements by your dealers get it in writing,as the old saying goes verbal receipts and statements are not worth the paper they’re written on!

 

[Pukmeister]

A bit late now mate, I've done it.............I hope I don't fall off.

If your warranty is invalid by fitting Givi, what happens when you use Touratech, H&B etc ?????

Sounds like a cop-out to me.

 

[thornley]

Everything is a 'cop out' if you have luggage fitted you should not exceed 130KPH (80mph) this used to be on a plastic sticker under the seat. Non-standard fasteners (stainless below original alloy steel spec in critical areas) non approved fitments of any kind, exhausts,chips,bars,lights,fairings, non oem filters,oils,lubricants,fluids......etc. Pays your money makes your choice.

 

[(RIP) Kaister]

If you loctite a bolt that is not loctited by bmw you are changing specifications , you may have absolutely no legal standing if something happens in connection with these bolts. They could simply say you should have reported it to us first. In my opinion you should check them mark them and report them to bmw if they come loose. Then bmw cannot blame you, I presume they would simply have to address this problem, rectify, or refund.

Also one could be led to believe that using non approved lubricants on bolts could cause over tightening , as more force could be used to tighten said bolt than is necessary which I suppose could stress and stretch the then over torqued bolt..

WHAT A LOAD OF COMPLETE RUBBISH !

You're 'presuming' - you're 'believing' - you're 'supposing' and you're downright wrong !

Have you seen the loch ness monster too ??

Nominal torque is with a lightly oiled bolt. Explain to us how Loctite is going to affect these properties ?
Also - how is torquing with loctite going to 'stress and stretch ' the 'overtight' bolt.
If you use a torque wrench it can't put too much torque on the bolt .

I can't believe i'm reading such nonsense !

 

[Paul Narramore]

Quite.

 

[simch]

What about fiting a very simple "tab bend" locking washer and just relacing the torx bolts with more regular hex heads. Once torqued, and the tab bent over the hex, surely there is no way it could come loose?

It seems crazy you guys are all riding about with this issue on your mind? At the very least it will reduce your confidence when riding. We all need our wits about us when out there. BMW seem unwilling to appreciate or acknowledge the issue too.
I am surprised the after market has not just provided a kit to improve this.

A new bottom clamp, bigger, meatier with three or four pinch bolts not two each side, and some great big high tensile bolts you can really get some oomph on to stop them coming undone, locking washers, lockwored whatever?

I cannot understand it, there are some (in my opinion) trivial and downright ugly useless accessories out there for GSs, and yet a potential major safety issue like this and there seems nothng being offered by the specialist manufacturers.
To get BMW to fix it, means they will admit there is a problem and open
themsleves up to a load of lawsuits and grief! They will only do so as a last resort.
And how many of you would pay say £150 for a new beefed up triple clamp and bolts that are guaranteed t never go loose??
I know you should not have to, but for the peace of mind it would offer and the potential increase in safety, it would seem like bloody good value to me.

 

[thornley]

1, if you lubricate a bolt you reduce the friction between the threads on assembly this means that the torque wrench will turn the bolt fractionally more to achieve the same click out position than with a dry bolt as the friction is is no longer measured as torque. In effect a lubricated bolt will travel slightly further to register the same torque. This is more apparent at high torque settings.

Loctite when first applied acts as a lubricant to some degree so the guy is technically correct a lubricated bolt can stretch more than an un-lubricated one whilst showing the same torque setting, doubt it would be measurable in a bike workshop I also doubt that BMW would consider loctite a warranty issue.

More important at the torque settings being discussed here is the accuracy of the torque wrench. Torque wrenches within the aerospace industry are calibrated and are within the calibration schedules, my Britool used for years was tested and found to be reading 13% high at 50ft/lbs, yes I'm of an age were I understand imperial units as well as metric, it had to be scrapped and a new one bought and calibrated it was reading 4% high.

 

[(RIP) Kaister]

Nominal torque is with a lightly oiled bolt.

 

[thornley]

GS1200 bolts are fitted dry and without loctite although the GS1150 uses loctite. Refer to the manual. Nominal torque is not an accepted standard merely a guide to the parameters reasonably expected at a given torque,this also allows for calibration errors and snatch when bolting up.Which oil are you refering to? Different oils contain different additives for different applications and have differing effects on friction as a result. Coat a bolt with Molyslip and torque it up correctly leave the others dry watch what happens. The point made by Loosenuts is still technically correct an 'oiled' or lubricated bolt will stretch more under tensile load than one which is not and where a dry assembly is specified oils should not be used. Quite often on assemblies it will be specified as a dry assembly because the Engineer will use the friction and microscopic welding that occurs between similiar materials as a method of locking the bolt. Some oils can cause problems when bolting up disimilar materials or when heat is present and so dry will be specified. Loctite produce a range of products to allow for the possible applications.

Pointless augument really if your bolts keep working loose or high tensile bolts are replaced with A2/A4 stainless designed to bolt together kitchen appliances.