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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Mon Nov 05, 2012 7:38 am 
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Joined: Sun Nov 07, 2010 10:54 pm
Posts: 425
Location: Brisbane
Hello Steve,
Give me 5 minutes. I have 650 Pantah stauncions on my 450,,,,,,,,,,,,

1.5

graeme


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Mon Nov 05, 2012 8:24 am 
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Joined: Sun Jan 09, 2011 1:26 am
Posts: 175
Images: 6
Location: Melbourne, Australia
;) You are a star Graeme!
That is exactly what I needed to read. Good work my good man! That is exactly what my 35mm Marzocchi forks are too.
The donor Pantah forks I'm using/rebuilding have a schrader valve fitted on the cap. I understand the principal, but it looks very rough and simply tacked on. I've found some replica caps but the thread pitch is 1.25. I will need to either re-plate the stanchions or replace them. So far, quotes in Victoria are of similar prices to new ones! I'm in the wrong business! If the new stanchions are exactly the same thread, the replica caps obviously won't fit.

Thanks again Graeme.

Cheers,
Steve

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"...Honey, it's only a project bike...."


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Fri Nov 09, 2012 12:03 pm 
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Joined: Sun Oct 17, 2010 3:25 am
Posts: 51
Location: Netherlands
Hi Steve

early 35 mm Marzocchi forks have M 30 X 1 threads
later type forks have M 30 X 1,5 mm pitch

Eldert


Pantah600 wrote:
:oops: Folks,
could anybody confirm the thread size for 35mm fork caps please? Is it M30 x 1.5 OR M30 x 1.25?
Please?

Cheers,
Steve


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Mon Nov 12, 2012 5:57 am 
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Joined: Sun Jan 09, 2011 1:26 am
Posts: 175
Images: 6
Location: Melbourne, Australia
Eldert wrote:
Hi Steve

early 35 mm Marzocchi forks have M 30 X 1 threads
later type forks have M 30 X 1,5 mm pitch

Eldert


Pantah600 wrote:
:oops: Folks,
could anybody confirm the thread size for 35mm fork caps please? Is it M30 x 1.5 OR M30 x 1.25?
Please?

Cheers,
Steve


Hi Eldert,
that is an odd thread pitch. Could you advise how early these Marzocchi's are please? Apart from 1.5 thread pitch, the only other (I have just discovered for Fantic Marzocchi suspension) is 1.25mm.

Thanks for your information. I require 1.5mm pitch thread which I'm sourcing.

Ok, now for the cheap and cheerful method for obtaining a replica front brake master cylinder gold colour.
The original Brembo PS12 master cylinder was in need of an overhaul. The usual piston kit, O-ring and reservoir, cap and diaphragm, some colour to spruce it up.
Well, it was/is black....
Attachment:
Frtmc1.jpg
Frtmc1.jpg [ 149.42 KiB | Viewed 754 times ]


The replacement piston kit....
Attachment:
Frtmc2.jpg
Frtmc2.jpg [ 201.98 KiB | Viewed 754 times ]


And, the finished product....
Attachment:
Frtmc3.jpg
Frtmc3.jpg [ 223.04 KiB | Viewed 754 times ]


I have to do this on a budget! At least the paint is heat proof and has been cured in the garage oven for an hour at 200deg F.
Next up are the front brake callipers...
After the retaining walls...Phase 2 are installed.

Cheers,
Steve

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"...Honey, it's only a project bike...."


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Tue Jan 22, 2013 3:02 am 
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Joined: Sun Jan 09, 2011 1:26 am
Posts: 175
Images: 6
Location: Melbourne, Australia
:( Folks,
sorry to say not much has happened on the bike front.
Best wishes for the new year to you all! I even missed that important announcement!

New fork caps came in from England and they are fantastic. I'll actually use them on the Pantah (since it's a show bike...) Wayne from Billetparts UK supplied these rippers with the correct thread. Thanks Wayne! http://www.billetparts.co.uk/catalog/index.php

The callipers are next on the agenda since I have to do things on the cheapo.....
Painted....
Attachment:
Frtbrake1.jpg
Frtbrake1.jpg [ 156.53 KiB | Viewed 544 times ]


Ooopsss...
Attachment:
Frtbrake2.jpg
Frtbrake2.jpg [ 149.42 KiB | Viewed 544 times ]


Ahhh...that's better....
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Frtbrake3.jpg
Frtbrake3.jpg [ 100.35 KiB | Viewed 544 times ]


This started life as a black unit.....if you look back at some of the dry build photo's....
Attachment:
Rrmc.jpg
Rrmc.jpg [ 97.52 KiB | Viewed 544 times ]


So, apart from constructing the retaining walls....bit by bit...
I just wish I had more time to sort the engine out! I have everything to go except for conrod shells....

1 day.
Cheers again,
Steve

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"...Honey, it's only a project bike...."


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Tue Jan 22, 2013 12:30 pm 
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Joined: Wed Jul 04, 2012 6:50 pm
Posts: 62
Hi Steve,

if you are not lucky to find the conrod shells nearby, try these source:

http://www.stein-dinse.biz/eliste/index.php

they have them listed, also oversized...

or:

http://www.unmuessig-moto-italia.de/

this was my source for the conrod shells...if you need assistance to order (there is no english website available) please give me a note...

best regards

Wolf


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Wed Jan 23, 2013 6:09 am 
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Joined: Sun Jan 09, 2011 1:26 am
Posts: 175
Images: 6
Location: Melbourne, Australia
;) Thanks Wolf!
Have emailed S-D for availability. Looks, like I can get other stuff there too!
Thanks for your tip.

I have ordered some parts for my Pantah through Unmuessig before. Ottmar wrote perfect english when I corresponded with him. Only issue was slow shipping delivery. But, it was the cheapest method.

Question to ALL: Do I need to install the valve closing rocker return spring in the heads? A old wizard at the club suggests I don't need to? Do I?
Answers?

Cheers,
Steve

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"...Honey, it's only a project bike...."


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Wed Jan 23, 2013 6:39 am 
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Joined: Wed Jul 04, 2012 6:50 pm
Posts: 62
Hi Steve,

the need of installing the return springs depends on the purpose of the bike:

If you are using a starter machine and the idling revs are high enough, you don't need the springs. If not, you will...

Regards

Wolf


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Wed Jan 23, 2013 7:34 am 
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Joined: Mon Jan 21, 2013 4:36 pm
Posts: 180
why don't you use genuine big end bearings?

the closing springs are there for idle and low speed/throttle running quality. if it's a road bike use them, if it's a track bike most people would pull them out on principle. not sure i if would. i'd probably dyno it both ways to see if it made a difference.


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 Post subject: Re: Aussie TT2 track bike build
PostPosted: Wed Jan 23, 2013 6:23 pm 
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Joined: Wed Jan 16, 2013 5:28 pm
Posts: 83
I'd leave the springs in, as it won't run well under 2k, especially as the valve clearances grow. Necesitating more frequently adjustment. Both of those are not a problem on race bikes, as they can idle high and get inspected more frequently.

Lastly I've always found the Carbs a PITA to keep a nice idle and still run well, having to tickle them a little every few weeks with regular use. Taking out the closing springs just adds another unknown when fault finding in my opinion. :)

BTW I am loving the project, and I think your brake component restoration looks great. :)


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