after fitting some piper cams and noticing the absolute canyon of a gap between shim and lobe, and doing some research, i think im going to have to have at bash and franks shim-under-the-bucket aproach to sort clearances. if anyone has a full set knocking about or can get some(breaking car etc) than please let me know. thanks all, Tom.
CG shims
- Thread starter B14KLR
- Start date
frank
Club Member
i had to grind my spare (underbucket) shims down to 71 thou" for the pipers tom (a bit of a mission tbh)
the autosprint cam was more straightforward tho (he ground 2.5mm off the base circle to achieve the correct profile, which is the same (average) size as a stock shim)
Alienfish360
Awesome Dawson
I had some crazy prices for custom shims to be made up when I tried to fit the piper cams.
Alienfish360
Awesome Dawson
Most of them are outside of the range manufactured for the CG engine.
frank
Club Member
yeh, nissan only supply about 10 thou" (.25mm) oversize or undersize
and i dont favour fat heavy oversize shims personally (jowley had one of them "let go" iirc) :suspect:
frank
Club Member
a spare set of (stock) 2.5mm shims (they were nearly 1mm too thick)
frank
Club Member
i tried to skim them on a mates surface grinder, but the magnetic base would,nt hold them (they,re too small), and they spat out :doh:.
so i ended doing them by hand with a belt sander, with them held in an old cam bucket with a handle hammered on
http://www.micra.org.uk/attachment.php?attachmentid=13385&stc=1&d=1249912870
