what have you done to your bike today?

Re: what have you done to your bike today?

Simon_A said:
Is there enough clearance for that change bolt to be removed without removing the inner primary in normal circumstance John? mine also needs re-bushing.
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you cant remove the standard length bolt its just that littlest to long ,,

so when you redo-it you can cut the bolt down so it can be removed ,,,

i found the standard replacement bush was no better than the one fitted so i turned up one i also drilled out the end with the cotter pin as it was loose made a bush for that as well ,no play except for the slot

john
 
Re: what have you done to your bike today?

If we are talking about the same bolt I have come up against this issue in the past. Theres a lot of work involved to address a worn shifter arm bushing. I was contemplating fitting a permanent stud into the trans leaving enough clearance between stud and inner primary to remove/fit the shifter arm and secure with a nut. The aim been to protect the thread in the trans and allow enough room to be able to remove the shifter arm with the inner primary fitted.
My inner primary is off right now and my shifter arm bushing is baggy so nows the time.
Good luck with it all.
Hodgie.
 
Re: what have you done to your bike today?

I would never contradict you and your wealth of experience John but I do wonder if the shortening of the bolt in question may lead to damaging the threads in the trans or making them less secure than intended.

Last time I did this job it was apparent that a previous owner had used a bolt that was too short (probably to avoid inner primary removal) and the trans threads had become worn. With the inner primary off I was able to fit a bolt in the trans that was at least 1/3 longer than the one I took out and was far more secure. The threads were more secure the longer the bolt. I took this to mean than the forces applied were shared along a greater length of good thread in the trans.

What I am trying to say is the depth of the threaded hole in the trans will be intentional and to provide a secure fit for the intended bolt.
We all know what can happen when we tighten a bolt down into ally that is only partially threaded.
Whilst mine is down I will fit a permanent stud ensuring the threads in the trans are never bothered again and I will be able to remove/re fit the shifter arm with the inner primary fitted.
Hodgie.
 
Re: what have you done to your bike today?

with you on that ,,but i have now heli-coiled the thread so it should be strong i am thinking know-how much you have to cut i think it lass than a 1/4".

i is just that tiny bit too long to clear ,, if you can make or get a bush made i used brass as i had it should last a fair wile ...no problem as i can replace easy now the bolt is shorter :encouragement:

just got the clutch back on ,,fitted new plates as i found the metal ones were not seating evenly ,, replace both steel and friction ,

if you needed a heli-coil for this i can post it to you

P1090621.jpg
 
Re: what have you done to your bike today?

Chris I know what you mean about threads into ally, the most popular change is fitting studs to the shovel exhaust manifold, I also found some studs (stainless steel exhaust ones from a Nissan I think?) for my handlebar clamp cover and as for that "see-saw" pivot on the flat top shovel gearbox footshift - Rowdy's late father (ex-Lancaster rear gunner) made bushes for the unbushed eye and the worn pivot point so I didn't have to buy an expensive whole pivot when the very minimal eye began to oval.
 
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Re: what have you done to your bike today?

By the way, good time to share a tip - if one is fitting a new primary gasket, if you very lightly oil it (ie; oily fingers all over, both sides) and screw it down THEN remove it again it should no longer stick and tear when you take off the cover. The benefit of this is if you have to access the primary out on your travels where you cannot get another gasket or find some gasket goo.
 
Re: what have you done to your bike today?

devon.john said:
with you on that ,,but i have now heli-coiled the thread so it should be strong i am thinking know-how much you have to cut i think it lass than a 1/4".

i is just that tiny bit too long to clear ,, if you can make or get a bush made i used brass as i had it should last a fair wile ...no problem as i can replace easy now the bolt is shorter :encouragement:

just got the clutch back on ,,fitted new plates as i found the metal ones were not seating evenly ,, replace both steel and friction ,

if you needed a heli-coil for this i can post it to you

View attachment 35819
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Yes John without a doubt your helocoil will be much stronger than any threaded ally (even New). I know it can be done with a shortened bolt but its so tight and all that pissing about can potentiall damage the initial threads - no problem for you now though. My last re bushing hasn't lasted that long so will try brass this time. Hope all has gone well with the primary refit. Thanks for the kind offer of a helicoil John but I will be studding mine as mentioned. My threads are actually pretty good when using the full depth of the hole in the trans.
Hodgie.
 
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Re: what have you done to your bike today?

Paul P. said:
Chris I know what you mean about threads into ally, the most popular change is fitting studs to the shovel exhaust manifold, I also found some studs (stainless steel exhaust ones from a Nissan I think?) for my handlebar clamp cover and as for that "see-saw" pivot on the flat top shovel gearbox footshift - Rowdy's late father (ex-Lancaster rear gunner) made bushes for the unbushed eye and the worn pivot point so I didn't have to buy an expensive whole pivot when the very minimal eye began to oval.
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Fully agree with the stud approach Paul, both of my exhaust flanges now have studs and brass nuts. It makes perfect sense to any application that gets a lot of use and is subject to wear. Removing a cylinder head to helicoil a exhaust flange is a propper bastard for the sake of one fucked thread. I would strongly advise anyone to go this route before their threads become damaged.
Hodgie.
 
Re: what have you done to your bike today?

just to add to this i fitted a rose joint to the front of gear change rod ?5

as to the exhaust flange nuts you can get extra long brass nuts used on british leyland cars

john
 
Re: what have you done to your bike today?

That has to be an improvement John. Really dont like to hear my shifter linkages and rod rattle when hitting a hole in the road. Whilst I'm in deep I aim to make the shifter linkages smooth and less prone to mistakes.
Hodgie.
 
Re: what have you done to your bike today?

Oh Chris, while you are in there I have an imagined plan for the pin end of that rocker pivot. As you have seen that flat arm from the gearbox with the slot that the pin rides in will eventually bell the slot. I thought that I could get the slot widened (and trued again at same time) then have a "top hat" bush (ie; little flange) to go on the stud and be retained by its flange behind the flat plate. I haven't done anything yet apart from in my mind (where wonderful things happen that never see reality!) but maybe you'd like to give that some thought - perhaps see a blinding flaw that I haven't..?
 
Re: what have you done to your bike today?

Paul P. said:
Oh Chris, while you are in there I have an imagined plan for the pin end of that rocker pivot. As you have seen that flat arm from the gearbox with the slot that the pin rides in will eventually bell the slot. I thought that I could get the slot widened (and trued again at same time) then have a "top hat" bush (ie; little flange) to go on the stud and be retained by its flange behind the flat plate. I haven't done anything yet apart from in my mind (where wonderful things happen that never see reality!) but maybe you'd like to give that some thought - perhaps see a blinding flaw that I haven't..?
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Thanks for the heads-up on that one Paul. I will take a good look at the pivot bar you describe. Like the top hat bushing idea.
Hodgie.
 
Re: what have you done to your bike today?

that pivot bar is harder steel ,,i did look at it but with all the other little adjustments i think it as far as it can go
 
Re: what have you done to your bike today?

IMG_1337.jpg
Well it's off, yes the bolts too long so the inner primary is also off. The bush looks good but has worn the softer material in the link arm, so a ream and bronze bush in the making. There is some movement in the plate rose joints, but I can't find a part number for that yet ....update just found it 34659-79 and in stock Barnaby Wild
 
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Re: what have you done to your bike today?

P1090620.jpg this what i made up but then drilled out the pin end and bushed that as well
 
Re: what have you done to your bike today?

Thats the one - it is that small eye that ovals, far too quickly as well. The stud is where I imagined the "top hat" bush could go, free to rotate possibly so as to roll in the slot?
 
Re: what have you done to your bike today?

Cleaned up the bolts and pins on the rear banana to get it working smooth. No anti seize on the bolts, so took a while to get them out. Can't understand why people don't bother when it saves so much time in the future. Anyway, nice little job to keep things in harmony.

Greased up my Brasher Super Lights after another re-sole - 25 years of loyal service. Seem to be doing a lot of walking these days!

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IMG_7937.jpg
 
Re: what have you done to your bike today?

Claimed a refund on a brand new battery that lasted 4 months. ?104. Hoping for a replacement without hassle.
 
Re: what have you done to your bike today?

El Hombre said:
Can I ask what make?
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Yes Sir, you may. Motobatt mbhd12h for my shovel, from M&P. Bought several in the past but this was the first one that died completely and utterly, and after 4 months only. 20210104_124616.jpg

They asked me to post the top cover with an explanatory note, and hopefully a warranty replacement.
 
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