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DMAC

az supporter
Joined: Thu Jan 29, 2009 10:30 pm Posts: 1612 Location: North Brisbane
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 Posted: Tue May 10, 2011 7:01 am |
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OK thought I had lost spark but it turns out the pin locating the Cam pulley has gone AWOL.
Any suggestions on how to fix it?
My thoughts are find a tight fitting twist drill. Heat the end of the cam and guide it home with a hammer. Grind off the end at a suitable length.
or
Maybe locktight a drill in as the heat may effect the seal integrity.
_________________ SS
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jonno_racing

az supporter
Joined: Wed Apr 15, 2009 11:30 pm Posts: 8164 Location: Tassie
Vehicle: suzuki
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 Posted: Tue May 10, 2011 7:07 am |
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Damo

az supporter
Joined: Sat Jul 22, 2006 11:30 pm Posts: 4661 Location: Brisbane
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 Posted: Tue May 10, 2011 7:11 am |
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Another option might be to rat one out of another cam?
_________________ SJ50.4.LYF
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Scrawny

I live here!
Joined: Tue Jan 29, 2008 10:30 pm Posts: 10528 Location: Brissie
Vehicle: Popemobile
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 Posted: Tue May 10, 2011 7:19 am |
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2 roll pins, one inside the other, ground off to the right length?
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JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
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 Posted: Tue May 10, 2011 7:34 am |
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Tue May 10, 2011 7:58 am |
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get another from another cam or engineering shop and loctite that in
right tool for the job bla bla bla
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DMAC

az supporter
Joined: Thu Jan 29, 2009 10:30 pm Posts: 1612 Location: North Brisbane
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 Posted: Tue May 10, 2011 8:06 am |
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Thanks for the responses.
I'll try and source a spare from another cam or suzuki and locktight it in.
This motor needs to be reliable its off to the Cape in 6 weeks! Starting to think I'm a bit 
_________________ SS
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Scrawny

I live here!
Joined: Tue Jan 29, 2008 10:30 pm Posts: 10528 Location: Brissie
Vehicle: Popemobile
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 Posted: Tue May 10, 2011 8:09 am |
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Plenty of AZ assistance till you hit Cairns, then you're on your own 
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want33s

az supporter
Joined: Fri Nov 16, 2007 10:30 pm Posts: 8134 Location: Sunshine Coast Qld
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 Posted: Tue May 10, 2011 8:10 am |
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I'd either fit a new pin or tap it and fit a bolt with head cut off after install.
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selaga
Joined: Wed Oct 07, 2009 10:30 pm Posts: 137 Location: SYDNEY 2767
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 Posted: Fri May 13, 2011 10:38 am |
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Any engine reconditioning place, or even clutch place will have plenty of dowels lying around.
I wouldn't use the drill bit, as it is too brittle, however you can use the shank of the drill bit to figure out your required diameter.
All major fastener places also sell round stock in small lengths.
Hope that helps you out.....
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DMAC

az supporter
Joined: Thu Jan 29, 2009 10:30 pm Posts: 1612 Location: North Brisbane
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 Posted: Sat May 14, 2011 7:08 am |
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I have gone down the drill shank track path as it will be a tempory fix. I'm going to change the head soon.
I think why it came out was due to the pulley bolt not having the thick washer underneath it. I also attached the pulley using some 609 loctite on the mating surfaces. The pin itself should only be for locating the pulley for correct timing not taking any load of the cam shaft rotation.
_________________ SS
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shakes
Joined: Sat Apr 10, 2010 11:30 pm Posts: 4895 Location: Northcote
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 Posted: Sat May 14, 2011 9:06 am |
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DMAC wrote: The pin itself should only be for locating the pulley for correct timing not taking any load of the cam shaft rotation.
Look at the bottom of the page, other issues caused this... (oil pickup was stupidly blocked)
http://auszookers.com/index.php?name=Fo ... sc&start=0
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Sat May 14, 2011 9:10 am |
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shakes wrote: DMAC wrote: The pin itself should only be for locating the pulley for correct timing not taking any load of the cam shaft rotation. Look at the bottom of the page, other issues caused this... (oil pickup was stupidly blocked) http://auszookers.com/index.php?name=Fo ... sc&start=0
So the cam ( being the last to get oil pressure) was seizing.... 
_________________ I used to be indecisive,
now I'm not so sure.....
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shakes
Joined: Sat Apr 10, 2010 11:30 pm Posts: 4895 Location: Northcote
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 Posted: Sat May 14, 2011 9:16 am |
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yup. still destroyed the cam gear good. And in the search for a new one, out of 4 that we found, only one didnt have similar damage (just not as bad)
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