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Offset keys .. cam pulley's

Posted: Thu May 02, 2013 4:54 am
by Mc tool
Anybody got a hot tip as to who could supply me some offset keys . I have struck out locally ( no bastard could be bothered even returning my e-mails ) and uncle Ian ( Gowanloch ) hasn't replied either . Im pickin that someone either in Aus or the US will know someone .
Thanks
Hamish

Re: Offset keys .. cam pulley's

Posted: Thu May 02, 2013 8:35 am
by Duc906
Hamish

I got mine from Brad Black in Melbourne. I took them out when I got a set of adjustable pulleys, still have them in a box somewhere. From memory one was 5 deg and the other 6 deg. I don't need them any more.
What size are you after?

Re: Offset keys .. cam pulley's

Posted: Thu May 02, 2013 10:19 pm
by Mc tool
I need 4 and 8 deg as my lobe centers are at 111 deg and 114 deg . The thinking being that I can fit both and get 106/107 deg lobe centers , or just fit the 4 deg one and have 110/111 deg lobe centers. One thing bugs me is that I get 270 deg duration on the vert cyl and 272 on the horiz cyl. I have done the measurements several times and checked the method heaps ( zero lash , correct TDC , duration at 40 thou valve lift)..... beats me :wacko:
I would rather have adjustable pulleys but they aint as easy to find as you'd think . Epicycle will modify my own pulleys if I send em over the ditch , not sure I can be bothered with that tho.
Hamish

Re: Offset keys .. cam pulley's

Posted: Fri May 03, 2013 2:54 am
by Mc tool
Duc906 wrote:Hamish

I got mine from Brad Black in Melbourne. I took them out when I got a set of adjustable pulleys, still have them in a box somewhere. From memory one was 5 deg and the other 6 deg. I don't need them any more.
What size are you after?
Cheers Ken , They are on there way :)

Re: Offset keys .. cam pulley's

Posted: Fri May 03, 2013 5:50 am
by Andrew2
Hey Hamish,
how about a pictorial on what you're doing.I don't know shit about timing so I might learn something.

Cheers
Andrew

Re: Offset keys .. cam pulley's

Posted: Fri May 03, 2013 6:06 am
by Mc tool
Yeah , Ok ( always fancied myself as a movie star ) , when these keys get here I will sort it out on camera
( Warning , contents may contain low level violence and offensive language )

Re: Offset keys .. cam pulley's

Posted: Fri May 03, 2013 9:42 am
by Duc906
Mc tool wrote:
Duc906 wrote:Hamish

I got mine from Brad Black in Melbourne. I took them out when I got a set of adjustable pulleys, still have them in a box somewhere. From memory one was 5 deg and the other 6 deg. I don't need them any more.
What size are you after?
Cheers Ken , They are on there way :)
No probs, good to hear that Brad could help you out. :thumbup:
As for the difference in duration, you have come up with the same duration specs that I measured on my bike. I measured mine at least 10 times when I was playing around with the cams but I still came up with the same durations? :dunno:
Maybe Mr Black might chime in here and have an explaination for it.
Good luck with you're new career change as a movie star, break a leg. :lol:

Re: Offset keys .. cam pulley's

Posted: Sun May 05, 2013 10:45 pm
by Mc tool
Duc906 wrote: Good luck with you're new career change as a movie star, break a leg. :lol:
Very funny :-P , but then I did make a better job of doing that than most other things I have tried :D :lol: :lol: