Author Topic: US RD350B resto/rebuild  (Read 2466 times)

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Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #15 on: December 29, 2018, 09:53:46 PM »
A few more bits assembled:







The chain guard came up well, the rear mudguard no so much but its usable for now. The rear wheel needs a bit more fettling before fitting.
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline Motty

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Re: US RD350B resto/rebuild
« Reply #16 on: December 30, 2018, 08:48:48 AM »
Coming along nicely

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Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #17 on: January 14, 2019, 10:15:09 PM »
A quick round-up of the latest developments:

The back wheel is now on and rear brake connected and working

Started to dismantle the front brake system - more about that later.

I fitted the front brake switch with pipes attached so I could get the headlamp and indicators on. The front mudguard came up OK if you don't look too close but I might have to replace or re-chrome at some point.









Next job is the top clamp and handlebar holders along with the rest of the front brake system which might require a bit of work!!





Whats the best way to get the pistons out? I bet there's a topic about that somewhere!



2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline twostrokelooney

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Re: US RD350B resto/rebuild
« Reply #18 on: January 15, 2019, 09:40:37 AM »
Lots, would probably have been easier if caliper was assembled.... ;) ;)
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Offline betty foRD

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Re: US RD350B resto/rebuild
« Reply #19 on: January 15, 2019, 12:09:22 PM »
Your heading in the right direction with the caliper. ....
Reassemble with one side 180deg rotated so that you can bolt it back up together, pistons each facing fresh air. Then blank off the pipe entry with a bolt and pump the bleed nipple with a grease gun. Purge the air from the blanking bolt until grease starts coming out then put in.
As one piston starts moving get a g clamp and lock that piston. Then continue pumping and the second piston will start moving. Repeat until they are both so far out you can wiggle!
Rev 'em till they rattle

Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #20 on: January 15, 2019, 12:50:06 PM »
Thats a brilliant idea! I never even thought about rotating one side.

I will definitely be trying that either with a grease gun or with the original setup once the master cylinders rebuilt.

Thanks for that!
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #21 on: January 15, 2019, 12:52:03 PM »
Grease is probably better than brake fluid all over the place!
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline betty foRD

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Re: US RD350B resto/rebuild
« Reply #22 on: January 15, 2019, 12:56:32 PM »
Grease is easier in the long run.
If you still have the o ring seal , pop that back in.
Rev 'em till they rattle

Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #23 on: January 22, 2019, 11:51:00 PM »
That worked a treat!

There were some challenges to overcome though.

Firstly I couldn't find a suitable bolt to block the pipe from the master cylinder. After scabbling around in the shed for ages I tried this:



An old headstock bearing put in the feed hole. The rigid pipe then screws in a couple of threads on top - just finger tight though so as not to damage anything.

Next I couldn't get the grease gun to fit over the bleed nipple so ground it to fit with the dremel:



It was then just a case of pumping the pistons out a bit at a time. One was easier than the other so I had to pump that one out a bit clamp it then pump the other. Eventually one got to the end of its travel so pressure was lost. This one was easily wiggled out by hand but the other was still difficult so I needed to block off the open caliper half in order to pump it out (yes that is a kitchen knife):



After a quick clean-up the caliper will live to fight another day:





But the pistons won't!

« Last Edit: January 22, 2019, 11:56:27 PM by bruceb »
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline stukey

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Re: US RD350B resto/rebuild
« Reply #24 on: January 23, 2019, 08:34:32 AM »
Nsr Nick chambers does really good stainless pistons and his seal kits are better than Yambits ones ;)
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Offline Colin Johnston

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Re: US RD350B resto/rebuild
« Reply #25 on: January 23, 2019, 08:44:34 AM »
Nsr Nick chambers does really good stainless pistons and his seal kits are better than Yambits ones ;)
+ 1 for nsrnick on here for your brake parts, his parts are top notch


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Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #26 on: January 23, 2019, 08:56:07 PM »
Thanks for the advice chaps. I've checked out his website and will definitely be paying another visit in due course.

Probably put the brakes on hold until I've painted the master cylinder (and a few other bits) - its a bit cold for that at the moment!

Plenty more to do though.
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #27 on: January 27, 2019, 11:11:14 PM »
Whilst waiting for other jobs I made a start on the engine.
I was hoping for just a top end strip, check big/small ends, paint then put back together again.

Alas no!



Turns over with good compressin my a**e!

It does look quite clean in there there though. I don't think the pistons had been in there long as there's not much wear. The crank webs also look very clean (apart from the crap that dropped in when i pulled the barrel off)



I'll have to strip the whole thing now which is probably for the best anyway.

You can clearly see the part number on the other piston:



A quick google of this shows its a wiseco +1.0mm. Anyone know where to get these in the UK?
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford

Offline Comms Guy

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Re: US RD350B resto/rebuild
« Reply #28 on: January 27, 2019, 11:46:52 PM »
You're doing a grand job so far, Bruce ;) ;)

Offline bruceb

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Re: US RD350B resto/rebuild
« Reply #29 on: March 12, 2019, 09:07:56 PM »
Seems like ages and I've hardly done anything.

I did split the engine - the crank is away being sorted - one of the bearings felt rough otherwise it would have been fine.

Also found a powder coated top yoke on ebay and managed to get some small bits painted during the brief 'spring' we just had:





There's more to paint and a 5 kilo bag of bicarb of soda waiting to blast the engine casings - but the weathers put paid to that for a while
2002 Fazer 1000
1975 RD350B
1955 Morris Oxford