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 Post subject: Re: Frame swap
 Post Posted: Fri Jan 25, 2019 2:42 pm 
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Victor Meldrew
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Location: Worcester
I set the mig welder up for stainless steel wire and argon gas. First attempts were a bit difficult, but after a while I started to get the hang of it. Managed to get a bead of weld all the way around each pipe joint, then tidied it up a bit with the flap wheel. Looks like an air tight joint, which is the main consideration.

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Next challenge:

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 Post subject: Re: Frame swap
 Post Posted: Fri Feb 01, 2019 10:28 am 
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Victor Meldrew
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Hmmm, it's more difficult than I thought. However, I'm sure I'll improve with practice.

Here's my first effort, just needs a few pinholes sealing up, followed by a coat of VHT paint to prettify it. All stainless, so it won't rust.

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Heat shields refitted, bodgery hidden !

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 Post subject: Re: Frame swap
 Post Posted: Mon Feb 04, 2019 5:50 pm 
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Darwin Award winner 2016
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Excellent work Richard :clap


A very useful tool tis a welder... If i'd had one: my tyre changing machine would look more like rather than the clunky 'bolt together' thing it is.

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 Post subject: Re: Frame swap
 Post Posted: Tue Feb 05, 2019 10:56 am 
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Victor Meldrew
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I decided to have a go at repairing the bikes (CL175) original silencer, this time using mild steel wire and C02.

Cut out the rust with a Dremel wheel, then ground the chrome off with flap wheel and angle grinder. Turned out not to be as easy as I hoped. I thought I'd be able to weld a nice continuous seam, but the thin old metal burned through too easily, hence the messy series of tacks seen here. Much easier to run a bead on a nice clean flat piece of metal.

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I really ought to have practiced more before getting into projects, so 5kg of steel offcuts is on the way via Ebay.

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 Post subject: Re: Frame swap
 Post Posted: Sat Feb 16, 2019 3:12 pm 
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Victor Meldrew
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Location: Worcester
CL175 passed its MOT this morning, no advisories.

Historic vehicle, doesn't require MOT, but for 30 quid it's cheap peace of mind.

In any case, it's a stupid change to the legislation, IMHO ...

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 Post subject: Re: Frame swap
 Post Posted: Wed Feb 20, 2019 5:46 pm 
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Victor Meldrew
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Location: Worcester
I fitted my welded up CL175 original can yesterday, after smoothing out the welds and painting it with exhaust paint. Cured the paint using my heat gun. Used some JB Weld Extreme Heat exhaust paste in the joints between the can and pipes. Decent ride this afternoon, stopped to take some photos halfway out, nothing had melted, dropped off or burned away, so a reasonable success I'd say.

Bike runs well with original can on it, despite it seeming to be very restrictive, tiny internal passages and outlet hole.

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Rebuilt wheels with new brake linings, bearings, spokes and rims, block pattern dual purpose tyres fitted. New chain set, reverted to CL (lower) gearing. Rechromed front mudguard from fellow member of Honda Twins site. Got some replica CL handlebars to replace the rusty ones currently on the bike, perhaps that'll be my next job.

Bike is still wearing CB foot pegs, rear brake lever and CB (larger diameter) headlamp. May refit the CL bits at some stage, depends on how bored I am, :lol

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 Post subject: Re: Frame swap
 Post Posted: Wed Feb 20, 2019 6:12 pm 
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Knob Magnet
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:clap :clap :clap

looks very well Richard :oohlala

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 Post subject: Re: Frame swap
 Post Posted: Wed Feb 20, 2019 9:14 pm 
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Victor Meldrew
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Location: Worcester
Cheers Steve !

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 Post subject: Re: Frame swap
 Post Posted: Wed May 08, 2019 8:21 pm 
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Victor Meldrew
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Location: Worcester
Blinkin' weather :Bang

Took the CB175 for its MOT this afternoon. It passed, with an advisory about the front brake, 'Slight fluctuation in brake effort', not entirely sure what that meant, slight pulsing from lever ( 2LS drum brake ) just before final stop. Possibly an oval brake drum, more likely new linings still bedding in, as brake seems fine at higher speeds.

But it does go to show that the historic vehicle MOT exemption is pretty stupid, folks driving faulty vehicles, either blissfully unaware, or worse, fully aware but don't care.

And then we had a rainstorm of biblical proportions on the way home. My gamble that I'd be OK in my Kevlar jeans did not pay off :( :Bang

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 Post subject: Re: Frame swap
 Post Posted: Thu May 09, 2019 12:51 pm 
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Knob Magnet
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richard pitman wrote:
And then we had a rainstorm of biblical proportions on the way home. My gamble that I'd be OK in my Kevlar jeans did not pay off :( :Bang


:rollin :rollin

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 Post subject: Re: Frame swap
 Post Posted: Sat Aug 10, 2019 11:08 am 
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Victor Meldrew
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Location: Worcester
Remember I had a spare CB175 frame left over, when I swapped the K4 frame for a K6 frame ?

It occurred to me a few days ago that I had nearly enough parts in the shed and loft to build another bike. Got engine, wheels, tank(s), handlebars and switches, lights, fork yokes etc, etc.

Just needed a swing arm and fork legs and few sundry bits, rest of the stuff like battery box, engine plates I can probably make myself, using parts from other two 175s as patterns.

So, swing arm and rear suspension bits came yesterday, CD250u fork legs have just arrived this morning. Little project to keep me busy for a while. I doubt very much if this bike, if it ever gets finished, will get registered for the road, given the provenance of all the bits. If it does, I guess I'll have to go the MSVA route.

I fancy building something that looks similar to this:

Image

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And then one day you find
Ten years have got behind you
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 Post subject: Re: Frame swap
 Post Posted: Sat Aug 17, 2019 10:33 am 
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Victor Meldrew
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Location: Worcester
Gathering up some parts now.

CD250u forks, modified to take CB175 front brake. SL175 fuel tank, now modified ( hit with hammer ) so that it fits the frame better than in this photo.

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Tank stripped ready for derusting and primer. I used this stuff to strip the paint, works just like good old Nitromors.

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And then one day you find
Ten years have got behind you
No one told you when to run
You missed the starting gun


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 Post subject: Re: Frame swap
 Post Posted: Mon Sep 02, 2019 8:28 pm 
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Victor Meldrew
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Location: Worcester
Still amusing myself with this project, building my stock off left over CB/CL 175 parts into something resembling an SL175.

Front end build almost complete. CD250u forks rebuilt with new seals, bottoms painted. Bracket made to attach off road mudguard to bottom of fork yoke. Believe it or not, the real SL175 uses a mounting bracket that uses the fork pinch bolts just like I have !

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I'm particularly proud of my home made fork ears. All the aftermarket 'cafe' parts that I looked at were total crap, so I got some polished stainless tube that is a sliding fit over the fork tubes, cut the ears out of 2.5mm stainless plate, then welded the ears onto the tubes using my new Mig, set up with stainless wire and argon. Welds on the inner side, where they can't be seen. :o

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And then one day you find
Ten years have got behind you
No one told you when to run
You missed the starting gun


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 Post subject: Re: Frame swap
 Post Posted: Tue Oct 01, 2019 8:30 am 
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Victor Meldrew
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Location: Worcester
I'm still plugging away, building my version of an SL175 out of a pile of left over CB175 parts, although I have cheated a bit and used a genuine SL tank and rear fender.

Image

Real thing looks like this:

Image

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And then one day you find
Ten years have got behind you
No one told you when to run
You missed the starting gun


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 Post subject: Re: Frame swap
 Post Posted: Tue Oct 01, 2019 9:25 am 
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True Horneteer
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Location: In The Garage
Really like how the SL175 is coming along :clap

70s scramblers are regarded as very 'cool' and popular these days on sites like 'Pipeburn' and 'Bike Exif' - although I understand that your appreciation of the SL175 is much more authentic than a simple desire to be cool or popular :D


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 Post subject: Re: Frame swap
 Post Posted: Thu Nov 21, 2019 4:23 pm 
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Victor Meldrew
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Location: Worcester
A bit more progress. I've been amusing myself with my mig welder.

Made up some air filters. The real SL175 has foam filters similar to the ones I've made up. I need to get these painted ( mild steel ) before gluing RamAir foam onto them. The'll have clips to attach them to the carb inlets.

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Down below, I've my exhaust bends in place, welded mounting brackets on to them, also the adaptors and springs for the slip on cans. These are cheap Chinese things, 50mm internal bore, so they will be loud enough to waken the dead if I don't add some form of internal baffling. They do have some crude db killers, but I reckon those would just strangle the motor.

Again, pipes need paint, PJ1 ready to go when weather improves.

Image Image

Still lots to do, electrics, derust inside the fuel tank, get a new chain etc etc

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And then one day you find
Ten years have got behind you
No one told you when to run
You missed the starting gun


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