Author Topic: UK Pre A 350 'box of bits' Resto  (Read 16309 times)

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Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #150 on: October 07, 2020, 11:12:04 AM »
No worries, I'll ask elsewhere.

I'll try another question... just looked at the rear of the bike and noticed the pipes aren't equally spaced.  Assuming the frame/swinging arm are OK, it's likely one of the rear footrest hangers is bent.  I've tried a spare r/h hanger and it looked the same, so maybe the l/h is bent out a bit  ???

Before I start bending anything, could anyone with one of these advise what the normal gap (from the tyre/rim) is per side please  :)

« Last Edit: October 07, 2020, 11:13:40 AM by stevie747 »
74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline betty foRD

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Re: UK Pre A 350 'box of bits' Resto
« Reply #151 on: October 07, 2020, 12:03:32 PM »
Re earlier...don’t think there is a Pt. No. just for the facia decal. Normally already fitted to the bracket. David James had a few a while back but seems nothing out there at the mo.

As for pipes...as you surmise, there’s a lot of things done by the pillion bracket and after all these years....not one or the lugs they fix to is likely to be as made...and even if they were who knows what the tolerances were...

So trying to establish factory offset from the rim is going to be tricky.
For aesthetics, they should be symmetrical and functionally they need to clear the swing arm.  Logic would suggest they are either parallel or toe out at the back. Sorry can’t add more than that.

Rev 'em till they rattle

Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #152 on: October 07, 2020, 12:39:15 PM »
Re earlier...don’t think there is a Pt. No. just for the facia decal. Normally already fitted to the bracket. David James had a few a while back but seems nothing out there at the mo.

As for pipes...as you surmise, there’s a lot of things done by the pillion bracket and after all these years....not one or the lugs they fix to is likely to be as made...and even if they were who knows what the tolerances were...

So trying to establish factory offset from the rim is going to be tricky.
For aesthetics, they should be symmetrical and functionally they need to clear the swing arm.  Logic would suggest they are either parallel or toe out at the back. Sorry can’t add more than that.


Cheers, it wasn't hard to put a ruler across, through the wheel, to compare the gaps, by looking down from above.  Hopefully someone has a straight one out there in a shed, and a ruler...  :D
74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline GR400

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Re: UK Pre A 350 'box of bits' Resto
« Reply #153 on: October 07, 2020, 01:32:00 PM »
Not much help at all because mine currently has period Allspeeds on it, but I just took a look and I have the opposite, on mine the right side sits an inch or so farther out from the centre line than the left.  I'll be interested to see where you end up and if I need to straighten anything.
 
'80 RD400F, restored
'75 RD350B. Not touched for at least 20 years. Next up
'01 ZRX1200R
'01 GSX-R1000 K1

Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #154 on: October 07, 2020, 02:06:15 PM »
Not much help at all because mine currently has period Allspeeds on it, but I just took a look and I have the opposite, on mine the right side sits an inch or so farther out from the centre line than the left.  I'll be interested to see where you end up and if I need to straighten anything.

Yep, once I know which side is wrong I'll have a go at some bending.  I guess if they were equal when they left the factory, any side that might end up further-in was probably a result of dropping the bike...  I can't imagine a reason why one side would get bent outwards  ???

If it's my right side that's wrong, I've found a solution...  :D

74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline Motty

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Re: UK Pre A 350 'box of bits' Resto
« Reply #155 on: October 07, 2020, 07:17:17 PM »

I appreciate it isn't much help as my bike has expansions, but the left side expansion is closer to the wheel than the right
“...inside every old person is a young person wondering what the f*@k happened.”
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Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #156 on: October 07, 2020, 07:53:48 PM »

I appreciate it isn't much help as my bike has expansions, but the left side expansion is closer to the wheel than the right

Maybe my left side needs bending in then  ???
74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #157 on: October 14, 2020, 09:16:11 AM »
I wonder how many people following this journey have a standard 250/350 in the shed...  ???
74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline mts

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Re: UK Pre A 350 'box of bits' Resto
« Reply #158 on: October 14, 2020, 12:30:01 PM »

you gotta say those early 70s colours were just gorgeous 

had a look round dave H  ( rd nuts ) collection a few times and its like being in a sweet shop  just beautiful color everywhere  :D
Silver black 250 DX  pure
Yellow black 250/350 DX. Heinz 57
White red 400 2r9 pure for resto

Offline 5port

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Re: UK Pre A 350 'box of bits' Resto
« Reply #159 on: October 15, 2020, 05:26:09 PM »
Re earlier...don’t think there is a Pt. No. just for the facia decal. Normally already fitted to the bracket. David James had a few a while back but seems nothing out there at the mo.

As for pipes...as you surmise, there’s a lot of things done by the pillion bracket and after all these years....not one or the lugs they fix to is likely to be as made...and even if they were who knows what the tolerances were...

So trying to establish factory offset from the rim is going to be tricky.
For aesthetics, they should be symmetrical and functionally they need to clear the swing arm.  Logic would suggest they are either parallel or toe out at the back. Sorry can’t add more than that.


Hi Stevie,   I tend to judge them by the position of the chain adjuster to the pipe and the cut-outs.  On different models I have got pipes/brackets that must be bent but, you can't see it!
Some will space out with various washers on the brackets.
IMO, you can also have bent swinger and, possibly wheel built with incorrect offset, or even incorrect spacers.  ::)
Cheers

5port 


5port

Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #160 on: October 15, 2020, 07:04:58 PM »
I'm fairly sure the swinging arm and wheel/spacers are OK as they match other spares I have.

Anyway, I posted the same question last week on arsebook and it took less than a hour for someone to respond and suggest the LH side was the likely problem...

I had a spare L/H hanger that looked a bit straighter than this one:



But unlike the R/H one, to swap this over requires the whole back end to come out coz the swinging arm spindle traps it.  It's probably possible, if you have a spare swinging arm spindle or equivalent, to keep the back end in place by tapping the current spindle out with it from the opposite side though.

But as I haven't I had a go and trying to straighten it a bit, and bending it inwards will bring the pipes more into line.  Used a half metre threaded bar as a lever and a pro, very hot, hairdrier (the missus has a Salon) but hopefully not too hot for the powder coat.





And after a bit of sweat, they look a bit normal...  ;)





« Last Edit: October 15, 2020, 07:28:26 PM by stevie747 »
74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline Motty

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Re: UK Pre A 350 'box of bits' Resto
« Reply #161 on: October 15, 2020, 07:17:13 PM »

Well done that Man!
It's this sort of attention to detail that makes this such a great Restoration thread.
“...inside every old person is a young person wondering what the f*@k happened.”
Terry Pratchett

Offline stevie747

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Re: UK Pre A 350 'box of bits' Resto
« Reply #162 on: October 17, 2020, 09:20:06 AM »
That's about all I can do now until I reach the front of the oil pump refurb queue.

I don't want to fit the carbs and underseat gubbins until I get the pump sorted  :(



« Last Edit: October 17, 2020, 09:27:53 AM by stevie747 »
74 RD350 (pre A), 74 RD350'R', 72 AT2, 97 Aprilia RS250, 73 Widowmaker (x2)... (and a Wes Cooley GS1000S Diesel for the missus)

Offline GR400

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Re: UK Pre A 350 'box of bits' Resto
« Reply #163 on: October 17, 2020, 11:21:05 AM »
Looking very lovely  :)
'80 RD400F, restored
'75 RD350B. Not touched for at least 20 years. Next up
'01 ZRX1200R
'01 GSX-R1000 K1

Offline adrian1024

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Re: UK Pre A 350 'box of bits' Resto
« Reply #164 on: October 17, 2020, 01:42:24 PM »
Apart from the motorcycle, which looks great. I would like to have such a comfortable place to work with a motorcycle :)