Camshaft tunnel big camshafts

Chris · Jul 22, 2009

Hi all
I need to remove metal from my camshaft tunnels & the keeper plate?
7S being fitted.
Any photos anyone?
The correct method of marking the material to be cut? Marking blue?
Thanks Chris

chris plant · Jul 22, 2009

hi chris,as well as the keeper plates you,ll need to releive the bottoms of the cam follower tunells in the barells ,i did it a little at a time and kept checking clearance ,just remove as much as you need to

Seeley920 · Jul 22, 2009

Hi Chris,

7S?? YUK!!!

You can use a normal flap wheel from B&Q or whatever is nearest to you! you probably won't need to remove much though!

BrianK · Jul 23, 2009

Some photos here:

http://www.jevans.com/norton/chapter5.htm

Chris · Jul 24, 2009

Hi Chris John Brian
Thanks for your replies.
John I have swapped the cam for a PW3!!!! I know you dont like the 7 but it came with the bike.
I am doing a dry build on the Seeley Mk2 & not enjoying it. Half the bolts foul the bottom frame tubes & you cant fit the welded headsteady once the engine is in the frame. With it on the head you loose any movement of the engine in the plates as it holds the top end tight. I have found I can slip the timing side rear engine plate out & intoduce the gearbox from that side.
Why?
is still ringing in my ears.
Chris

Seeley920 · Jul 25, 2009

Hi Chris,

Sounds like you're having fun :-0 Now you know why I prefer a Mk3!! At least you can drop the motor out in a hurry!! I use metalastics in my headsteady, all other engine bolts 10mm and the plates/cases reamed out to match for a tighter fit. never had a problem with vibes running 78% (Kuhn figures!) The headsteady is a 3 piece, a 1/2 inch plate to the head, and 2 x 1/2 inch plates on each side screwed down from the top with the metalastics bored and fitted to them, then just a bolt through to the frame on each side, works a treat!!

Cheers

John

swooshdave · Jul 25, 2009

Seeley920 said:
Hi Chris,

Sounds like you're having fun :-0 Now you know why I prefer a Mk3!! At least you can drop the motor out in a hurry!! I use metalastics in my headsteady, all other engine bolts 10mm and the plates/cases reamed out to match for a tighter fit. never had a problem with vibes running 78% (Kuhn figures!) The headsteady is a 3 piece, a 1/2 inch plate to the head, and 2 x 1/2 inch plates on each side screwed down from the top with the metalastics bored and fitted to them, then just a bolt through to the frame on each side, works a treat!!

Cheers

John

Um, pictures?

Seeley920 · Jul 25, 2009

Um

http://www.sport-pics.co.uk/2009_season ... da3501.htm

Chris know smy bike well enough, my mods are only applicable to a Seeley frame

Rob94010 · Jul 26, 2009

Nice action shot of your bike. I would like to see the bike naked. I have to see how it is put together.

Chris · Jul 26, 2009

Rob
look for my posts
Seeley MK4
Caffrey frame
cross over tubes under the tank differ but everything else is similar.
I will post photos of the MK2
all the best Chris

Seeley920 · Jul 26, 2009

A few pics of the featherbed short stroke being built at the end too!!

Chris · Jul 26, 2009

John
love the carb gantry. I need to do something similar because the Smoothbores have such strong springs!
The tract length on the short stroke made me laugh. My local petrol station is closer.
Off to Lydden at the weekend.
See you at Snett
all the best Chris

Seeley920 · Jul 26, 2009

Developed over a long time...and it works!!!

chris plant · Jul 26, 2009

hi john,like the short stroke featherbed, how does it compare to the long stroke regarding throttle response and max rpm

Seeley920 · Jul 27, 2009

Hi Chris,

The short stroke is a brand new motor...well, the timing cover is used....I haven't finished it off yet, but will have it out in Snetterton in Sept, hoping to get a test day on it before then. Both motors have light cranks etc. The "standard" motor is very revvy and prety quick off the line, and at Snetterton last time just had a little top end over the triples on the Norwich straight! I'm off to Sweden on Thursday with the Seeley...twisty tracks with lots hard braking really suit it!

How is yours going??

chris plant · Jul 27, 2009

hi john, both my bikes in storage at moment,(ie daughters 8by6 outhouse) lots of upheaval moved house recently so no place to work on them at mo,short stroke motor is built but unrun as yet, cant wait to get it fired up

Seeley920 · Jul 27, 2009

Hi Chris,

I know that feeling!! I'm hoping to fire the short stroke up next week, still waiting on a new tank from Terry Baker....the fibre glass one is like a sieve at the moment! Might just bodge another one on just to fire it up though.

Camshaft tunnel big camshafts

Similar threads