Swinging Arm Damage

[Mickly]

I’m trying to slowly create a stripped down cafe racer from a lardy 1200 Triumph Trophy, the latest issue I’ve come across is some damage to the swinging arm.

I was cleaning all the cr*p off it and uncovered this:

Only the previous owner could say how it happened.

It’s about 1mm deep.

The question is whether it can be polished out without compromising it’s integrity ( it will be powder coated)

Or will it need repairing with a infill weld?

Or ( heaven forbid) does it need replacing?

Any other options you can think of ( a match in the tank is not one I’m prepared to consider) ?

Mickly

[megawatt]

Easy repair for a decent Welder. Polish around weld after and maybe powder coat.

[Mickly]

Easy repair for a decent Welder. Polish around weld after and maybe powder coat.

 

What kind of £££ would I be looking at?

[megawatt]

Dunno mate. Depends how greedy he is. Less than £50 I would guess.

[fastbob]

There are a few on eBay at around £50 - £60

[eastanglianbiker]

would be cheaper to buy a 2nd hand swinging arm then weld and repair that one

[Mickly]

The ones I’ve looked at on evil bay also have some damage of some sort.

I’ve dressed the chain adjuster with a file

Here it is next to the non damaged one.

The damaged one is at the top.

Took a while and reminded me of the punishment for digression as an apprentice - squaring a block of roughly cut steel with a file.

Gonna ask the powder coating guy for advice on the gouge in the arm it’s self.

[fastbob]

Is the gouge going to be visible on the completed bike ? Won't whatever made the gouge still be hiding the mark upon reassembly ?

[Mickly]

Is the gouge going to be visible on the completed bike ? Won't whatever made the gouge still be hiding the mark upon reassembly ?

 

I’ve got no idea how it got gouged

As I’m stripping it back to the bare bones it will stand out, and more importantly- I would know it was there ... OCD me ?

Probably

Mickly

[TimR]

would be cheaper to buy a 2nd hand swinging arm then weld and repair that one

 

But you then have to add a swingarm bearing kit as you have no idea of its wear until you refit .

At least with old arm you have an idea of its history and lifespan

[TimR]

Gouge i would say caused by a overlong bolt on a exhsust hanger or such

[onesea]

As the owner of a lardy Triumph Trophy 1200 they are cracking bikes, can I ask have you joined the Facebook group:

https://www.facebook.com/groups/TriumphTrophy/

Just don't describe it as a Lardy 1200...

You might be able to buy or flog bits on here....

https://www.facebook.com/groups/TriumphTrophyServices/about/

They are a great source of knowledge about the bikes and issues...

[Mickly]

As the owner of a lardy Triumph Trophy 1200 they are cracking bikes, can I ask have you joined the Facebook group:

https://www.facebook.com/groups/TriumphTrophy/

Just don't describe it as a Lardy 1200...

You might be able to buy or flog bits on here....

https://www.facebook.com/groups/TriumphTrophyServices/about/

They are a great source of knowledge about the bikes and issues...

 

Thanks for the link - unfortunately I’m not on Face Book (personal reasons)

Mickly

[Mickly]

Result- got the ally weld done for nowt - called at a local place on the off chance and met an old neighbour, not their normal thing but did it as s favour, wouldn’t even take a tenner for a beer - also gave me the name of a contact for any future work - what a great guy.

Lots of work cleaning it up, but now ready to go to the blasters / craters