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Bent Frame Saga

Work in Progress

Moderators: chrisu, paul doran, Taffus, KeithZ1R

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ROZZER
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Bent Frame Saga

#1 PostAuthor: ROZZER » Tue Nov 06, 2007 8:05 pm

Thought you boys might like to follow the exploits of my Z1b rebuild. Bit different to all the others in that it was a minter to start with, but found it has a bent frame. Went to Seastar Superbikes in Norwich last week to get frame straightened, what a great bunch of people they were too. Never met so many helpful and accomodating people in a bike shop in all my life. Service manager Richard sorted me out a date to go down and get frame done same day, quoting ?75 + VAT to set up and then ?40/hr +VAT to straighten frame, allowing approx 3-4 hrs to complete. Chris is the guy who operates the jig, he is well into the older bikes so was interested right away and keen to get the Zed sorted. He let me and our kid watch the whole process and take pictures. Little tip- don't watch it is frightening how far the frame is distorted by the hydraulic rams to get a permanent deformation. My headstock was over to the right by 10mm when measured at wheel, to get back in line the rams pushed the pointer about 75mm the opposite way, the frame top tubes moved from the front of the seat, christ the frames are spindly in these things and no wonder the handling is iffy. After 3 or 4 repeats of the process the pressure was applied to the top of the headstock to remove the 5mm twist, again a frightening deformation applied to get back in line. Voila! one straight frame. All down to the experience of the jig operator and Chris is a master, wouldn't go anywhere else (hope never have to).
So thats the end of the straightening, small matter of 790 mile round trip to sort but it only took an hour and ended up costing me ?135 inc VAT- result. Will post photos when I remember how, frame now at powder coaters, no damage caused in the process but I've decided the finish was a bit ropey so getting it redone, might as well have it right while its in bits. Will post pictures of rebuild if anyone is interested- just let me know.
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Our kid and Chris with frame on jig.
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Shows headstock over 10mm to rt hand side (Rake OK)
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Rams set up to push over headstock (Note mandrel fitted to headstock)
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Near enough for me! (And closer than out of the factory says Chris)
Last edited by ROZZER on Tue Nov 06, 2007 8:25 pm, edited 2 times in total.
AKA John Roscoe. PUM #028
1975 Z1B, 1980 Yamaha 350LC

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Pigford
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#2 PostAuthor: Pigford » Tue Nov 06, 2007 8:19 pm

Cheers for the details, very interesting John :shock:
And on the 7th day... Zeds were created!

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ROZZER
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#3 PostAuthor: ROZZER » Tue Nov 06, 2007 8:37 pm

Cheers Pigford. Plenty of people probably saw Rod Gibsons Z1A frame getting straightened in Classic Motorcycle Mechanics, just thought it would interest those that don't buy the mag.
AKA John Roscoe. PUM #028
1975 Z1B, 1980 Yamaha 350LC

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uk kev
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#4 PostAuthor: uk kev » Tue Nov 06, 2007 9:07 pm

John good news, and thanks for the info, I look forward to the rebuild pictures.

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london calling
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#5 PostAuthor: london calling » Tue Nov 06, 2007 9:26 pm

Even the frame jig is painted Kawaaski green,so you know the job's a good 'un. :D :D
Jack

Davy Doherty

#6 PostAuthor: Davy Doherty » Tue Nov 06, 2007 9:26 pm

Very interesting John it's hard to beat seeing it first hand thanks for posting the pics, and definatly keep them comming...

Steve Cooke
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#7 PostAuthor: Steve Cooke » Wed Nov 07, 2007 5:15 am

Good on yer John, I found that very interesting, now for your rebuild.

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ollie
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#8 PostAuthor: ollie » Thu Nov 08, 2007 2:46 am

nice pics and good write up ,i had one of my frames done about 20 years ago and it is shocking how much they bend them to true them up .
thanks again
ollie
zedsrus:"i don't know man ,i just got here myself !!"

phil churchett
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#9 PostAuthor: phil churchett » Fri Nov 09, 2007 5:39 pm

Good to see you got it sorted John. I know after speaking to you at Stafford, you weren't looking forward to the long trip, but it was well worth it.
Good luck with the re-build, look forward to seeing the pics.
Four pipes rule, anything else is second best.

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ROZZER
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#10 PostAuthor: ROZZER » Mon Nov 19, 2007 5:56 pm

Got frame back from powder coaters and started rebuild at weekend, Clive Hasley in Whitehaven 01946 66202 did the coating and its absolutely first class.
Having problems with photobucket so will post pics ASAP.
AKA John Roscoe. PUM #028
1975 Z1B, 1980 Yamaha 350LC

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ROZZER
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#11 PostAuthor: ROZZER » Mon Nov 19, 2007 6:44 pm

Think I've sorted photos- here goes
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Fers gonna hate this bike (A 4 pipe prototype thats very shiney, but it does get ridden so he may forgive me)
Image
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Doin it the easy way
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Well thats the progress this weekend, need to get more parts back from powder coaters and polish up a few bits before moving on to complete. Will post more pics soon.
L8r JR.
AKA John Roscoe. PUM #028
1975 Z1B, 1980 Yamaha 350LC

Davy Doherty

#12 PostAuthor: Davy Doherty » Mon Nov 19, 2007 8:03 pm

John i can't see any bike . all i can see is a bling garage :lol: !!!!!!!!!!!!!!!!!!!

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Pigford
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#13 PostAuthor: Pigford » Mon Nov 19, 2007 8:20 pm

Great shots, MASSIVE expanse of space in the volumous garage :shock:
Incredibly tidy arrangement of tools :wink:
Looks like my ideal VIRTUAL garage :shock:
Waiting for my frame to come back from the sprayers, but won't have the luxury of such a well organised garage :?? I got me nice clean shiney spanners all ready tho :roll:
Keep them photo's coming :twisted:
And on the 7th day... Zeds were created!

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paul doran
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#14 PostAuthor: paul doran » Tue Nov 20, 2007 6:22 pm

Lovely bike John
don't mind Piglet he is still trying to figure out how to open the spanner set
way too many Zeds

phil churchett
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#15 PostAuthor: phil churchett » Tue Nov 20, 2007 6:38 pm

Congratulations John, you win the award for largest/most tidiest garage, [so far!]. Good luck with the rest of the re-build.
Four pipes rule, anything else is second best.


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