Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: Johnny4428 on March 06, 2024, 09:10:21 PM

Title: Will it fix?
Post by: Johnny4428 on March 06, 2024, 09:10:21 PM
Going to fit a new seal in this today but dissapointed to find this tacho drive broken. What’s the chances of a repair? Nothing to lose.
Title: Re: Will it fix?
Post by: Johnwebley on March 06, 2024, 09:41:44 PM
I don't know,

I would clean both joint surfaces with brake cleaner,

Use a good adhesive, something that lists metal,

Apply to break as per instructions,

Leave in a warm place and see what happens,

There is hardly any load on it,

If it does stick, you might want to reinforce by drilling tiny holes down through the break, fill the holes with glue and push small pins in the holes,



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Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 06, 2024, 10:13:46 PM
That JB Weld is pretty good.
Title: Re: Will it fix?
Post by: Bryanj on March 06, 2024, 10:35:13 PM
They are available pattern but sit down before you check the price, all 500,550 are the same
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 10:24:32 AM
They are available pattern but sit down before you check the price, all 500,550 are the same
Already checked Bryan!😳
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 10:28:28 AM
Thanks guys for replies,  I think I might buy a replacement yet as I need one for the other engine anyway, depending what route I go for tacho/speedo set up. So I have nothing to lose by trying a repair.
Title: Re: Will it fix?
Post by: SteveW on March 07, 2024, 10:43:34 AM
I think Nurse Julie had a couple of these for sale recently.
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 10:56:21 AM
Thanks Steve, I will send a message to her.
Title: Re: Will it fix?
Post by: Orcade-Ian on March 07, 2024, 10:58:20 AM
Hi Johnny,
I'm definitely with John Webley on that one.  Some pinned reinforcement if there's space and original Araldite - not rapid version.  Leave to harden as said, somewhere warm for a few days (and then go back and collect the pieces 🙈). No, seriously it's worth a try.

Ian
Title: Re: Will it fix?
Post by: Laverdaroo on March 07, 2024, 11:01:39 AM
Just for info, I’m currently looking into getting some made, we’ve a blank being offered soon from a pattern one that was submitted to a chsp abwhilevago. Not sure on time lines but it sounds promising.

Just so you know.


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Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 11:03:35 AM
Yes thanks Ian, it’s a good shout indeed from John. I think I might even have some of that stuff, I’ll check to see if it is the rapid stuff or not. Thanks
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 07, 2024, 11:05:17 AM
Just for info, I’m currently looking into getting some made, we’ve a blank being offered soon from a pattern one that was submitted to a chsp abwhilevago. Not sure on time lines but it sounds promising.

Just so you know.


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Bloody hell Roo is this an Anagram  "chsp abwhilevago"
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 11:05:45 AM
Just for info, I’m currently looking into getting some made, we’ve a blank being offered soon from a pattern one that was submitted to a chsp abwhilevago. Not sure on time lines but it sounds promising.

Just so you know.


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Thanks Roo. That’s interesting, especially if they can make them for less than £100. Keep me posted!
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 11:06:42 AM
Just for info, I’m currently looking into getting some made, we’ve a blank being offered soon from a pattern one that was submitted to a chsp abwhilevago. Not sure on time lines but it sounds promising.

Just so you know.


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Took me a wee while Ted, I got it eventually.🤪

Bloody hell Roo is this an Anagram  "chsp abwhilevago"
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 07, 2024, 11:11:32 AM
Something (chsp)  a while ago ?
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 11:15:40 AM
Chap.
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 07, 2024, 11:17:18 AM
You must be good at Quizes & Cryptic Crosswords Johnny.
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 11:19:18 AM
You must be good at Quizes & Cryptic Crosswords Johnny.
😂 not sure what it says about me the fact that I understand double Dutch!🤣
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 07, 2024, 11:21:19 AM
You must be good at Quizes & Cryptic Crosswords Johnny.
😂 not sure what it says about me the fact that I understand double Dutch!🤣

What you need is a Babel Fish in your ear. (HHGTTG)
Title: Re: Will it fix?
Post by: Bryanj on March 07, 2024, 11:27:46 AM
Or a universal translator ST,THG,V
Title: Re: Will it fix?
Post by: Laverda Dave on March 07, 2024, 11:31:55 AM
All great suggestions Johnny especially if Roo's getting some made.
If you send the part to me I could take it to Brian, the guy who does alloy welding for me. He may be able to weld it although obviously as it's cast there will be no guarantee it will be successful and you may get a blob of alloy in return but if all else fails and you need it urgently there's nothing to loose.
I'm going over to Brian in the next few weeks to get a part for the poxy Triton altered.
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 07, 2024, 11:36:05 AM
Or a universal translator ST,THG,V

I'm a Douglas Adams fan - never really got into Star Trek Films - the first TV series was my era.
Title: Re: Will it fix?
Post by: Laverdaroo on March 07, 2024, 11:42:13 AM
Soz bout that, hurriedly typing whilst dashing about

Soon as I know I’ll let you know, not sure yet but he’s doing one in brass first to see if it’s doable rather than casting. Not sure if it’s economical or not but I’ve got one lurking somewhere if you need one, I’ll have a look later as in the shed of dreams putting the thermostat on the VFR.


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Title: Re: Will it fix?
Post by: Laverdaroo on March 07, 2024, 11:42:36 AM
Babel fish


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Title: Re: Will it fix?
Post by: K2-K6 on March 07, 2024, 11:58:16 AM
All great suggestions Johnny especially if Roo's getting some made.
If you send the part to me I could take it to Brian, the guy who does alloy welding for me. He may be able to weld it although obviously as it's cast there will be no guarantee it will be successful and you may get a blob of alloy in return but if all else fails and you need it urgently there's nothing to loose.
I'm going over to Brian in the next few weeks to get a part for the poxy Triton altered.

I'd favour this as most likely to succeed, soak in solvent first then ultrasonic clean would have good chance of cleaning it and avoid contaminated structure to weld.
Always a risk of course until the welder can attempt decent trial.
Can be done, worthwhile to at least have a go.

Manufacturing one, Duralamin would be my first choice from a machining and final materials specification. 
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 07, 2024, 12:00:46 PM
Reminds me of the old translation joke.

If you translate the expression "Out of sight - out of mind" into Russian then have the Russian translation changed back into English you end up with "Disappearing Lunatic".

Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 06:04:56 PM
Thanks all for advice regarding repair. Nigel good advice on cleaning etc, unfortunately I don’t have an ultrasonic cleaner but will give it a good clean with brush and maybe acetone or thinners.
But I must add that I have a used one on the way thanks to NJ AND T. Takes the pressure off the repair job, but will still be perusing a repair on the broken one.
Title: Re: Will it fix?
Post by: SteveW on March 07, 2024, 07:07:56 PM
What about the low temp aluminium brazing rods on eBay?

I’ve used them before and they are pretty good.
Title: Re: Will it fix?
Post by: Johnny4428 on March 07, 2024, 09:48:59 PM
That’s a good shout Steve, I actually bought some of them a year or so ago but haven’t used them still. There’s probably not many degrees separating melting the repair rods and melting the housing though.😳
Title: Re: Will it fix?
Post by: Laverda Dave on March 07, 2024, 10:44:51 PM
It's the degree of fear Johnny. Oh I'll give it a little bit more heat.......pop😢.
Worth a try though if you have them anyway and you have a spare on the way and hopefully Roo will go into full mass production with his new ones👍
Title: Re: Will it fix?
Post by: heliwilly on March 08, 2024, 06:33:54 AM
The go to guy around here who can weld any metal especially alloys is Badfoot Customs. Check out his Facebook page, a metal genius.
Title: Re: Will it fix?
Post by: Orcade-Ian on March 08, 2024, 07:29:10 AM
Only just re-read one of your posts Johnny, I have an ultrasonic bath if you want to go down that road first.  That might stop you being able to have it welded later though if it fails.
Shout if you need it.
Ian
Title: Re: Will it fix?
Post by: Johnny4428 on March 08, 2024, 07:56:13 AM
The go to guy around here who can weld any metal especially alloys is Badfoot Customs. Check out his Facebook page, a metal genius.
Just checked out Facebook, that’s some impressive repairs!
Title: Re: Will it fix?
Post by: Johnny4428 on March 08, 2024, 07:59:46 AM
Only just re-read one of your posts Johnny, I have an ultrasonic bath if you want to go down that road first.  That might stop you being able to have it welded later though if it fails.
Shout if you need it.
Ian
Thanks Ian!
Title: Re: Will it fix?
Post by: Johnny4428 on March 12, 2024, 12:47:11 PM
Glued and left for a few days to dry then made a steel band to glue round the flange. Now leaving to dry for a few days again.
Title: Re: Will it fix?
Post by: McCabe-Thiele (Ted) on March 12, 2024, 12:56:57 PM
Unless I've missed it what "Glue" did you use Johnny?
Title: Re: Will it fix?
Post by: Johnny4428 on March 12, 2024, 07:34:06 PM
Unless I've missed it what "Glue" did you use Johnny?

Just the normal Arldite Ted, not the rapid stuff, as recommended.
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