8 replies to this topic

[danny1]

ive got a radius arm repair kit for both my my rear arms,

but im just wondering if anyone has any advice on how to do this job.

cheers

[richw911]

You need a tool to reem the brass bushes

[icklemini]

yeah use the reconditioned arms from minispares... £45 quid a side for a nice shiny reconditioned arm with all the hard work done... :)

Else you need to pull the bearing, bush and sleeve out the old, fit the new, then ream the bush correctly...

[redhotminilewis]

As said, if you're replacing the bronze bush as well, and want to have the job done professionally and most effectively, you will need to get it reamed out to the correct size of the shaft so it fits snuggly.

However, I am doing this job soon and I will be doing it a different way which ive seen done before and worked fine. This method is getting a brake honing tool (This) and then attaching it to a hand drill and slowly removing metal from the bush to get it down to the correct size.

As I havent actually done this myself yet I cant comment on how much of a difference reamed vs honed will make over a long period of time but as reaming is very accurate it will undoubtedly last longer, just not sure how much longer and better it will be. In addition, the reamed bush will be concentric whereas the honing will more than likely be slightly out.

Choice of getting the bronze bush down to size is up to you, reamed or "bodged", or another option, a refurb unit isn't too much.

[icklemini]

As said, if you're replacing the bronze bush as well, and want to have the job done professionally and most effectively, you will need to get it reamed out to the correct size of the shaft so it fits snuggly.

However, I am doing this job soon and I will be doing it a different way which ive seen done before and worked fine. This method is getting a brake honing tool (This) and then attaching it to a hand drill and slowly removing metal from the bush to get it down to the correct size.

As I havent actually done this myself yet I cant comment on how much of a difference reamed vs honed will make over a long period of time but as reaming is very accurate it will undoubtedly last longer, just not sure how much longer and better it will be. In addition, the reamed bush will be concentric whereas the honing will more than likely be slightly out.

Choice of getting the bronze bush down to size is up to you, reamed or "bodged", or another option, a refurb unit isn't too much.

How do you make sure its done inline with the bearing???

[danny1]

cheers for the advice guys, luckly a mate has the reeming tools so im going to do it all myself

[redhotminilewis]

As said, if you're replacing the bronze bush as well, and want to have the job done professionally and most effectively, you will need to get it reamed out to the correct size of the shaft so it fits snuggly.

However, I am doing this job soon and I will be doing it a different way which ive seen done before and worked fine. This method is getting a brake honing tool (This) and then attaching it to a hand drill and slowly removing metal from the bush to get it down to the correct size.

As I havent actually done this myself yet I cant comment on how much of a difference reamed vs honed will make over a long period of time but as reaming is very accurate it will undoubtedly last longer, just not sure how much longer and better it will be. In addition, the reamed bush will be concentric whereas the honing will more than likely be slightly out.

Choice of getting the bronze bush down to size is up to you, reamed or "bodged", or another option, a refurb unit isn't too much.

How do you make sure its done inline with the bearing???

As I said, the reamed method will make sure the bush is reamed concentric to the bearing whereas the hone will not. However the way I plan to do it will make it more or less concentric, no where near as accurate as a reamer will though.

Luckily I have a machine shop and all the right tools to ream it so if I balls up with honing ill return to the reamed method, im just trying it out as an alternative and see how long this way will work compared to reamed.

[tiger99]

The honing method is completely useless. It has to be truly concentric, which only something guided by the needle roller bearing or its bore in the arm can do. If you have the facilities to do it the right way, why do it the wrong way?

[redhotminilewis]

Because im naturally inquisitive and would like to know the difference and see how much of a difference and how difficult it is to do and the effects of it. Ive had a look before and ive noticed too many people that havent honed it slate it off for "theoretical" reasons but never been managed to prove it to be worse, yet I have seen people who have honed it say its never been a problem.

Just a though, you say honing is useless, but have you tried it?

Personally for me I wouldn't like to try both methods and comment on how they compare. Its only gunna cost me a new few bushes (£5) anyway.