Vernier pulley setup

[skud52]

Ok ive got a set of turbosport vernier pulleys for my c20let and would like some help with regards to the setup. I am adjusting the inlet cam. Retarding it 7 degrees. I have a few questions, first, the original pulley markings are directly above the locator dowel but the verniers are 180 degrees put to this asuming the 0 mark on the reffers to standard timing. Is this a problem or can the cam be 180 degrees out?? Or should i transfer the timing marks from the original pulleys and use that?

I also need to no whether setting the inlet side is simply a case of moving the the pulley to 7 degrees retarded and setting it ip on the marks either on the pulley or that i might have to make as said above? Or is it a case of setting up the cambelt to standard, the loosening the inlet pulley and adjusting the 7 degrees using the crank and a timing disc??

All help greatly appreciated. Cheers Ben

[meritlover]

Vernier might not be 180 deg out. it might just be on the wrong stroke - ie the crank needs a further 1x rotation.

be sure you are retarding by 7 deg on the cam or the crank

7deg on the crank = 3.5 deg on cam
7 deg on the cam = 14deg on the crank

dont get confused.

[skud52]

Vernier might not be 180 deg out. it might just be on the wrong stroke - ie the crank needs a further 1x rotation.

Surely it doesnt matter at this stage as i havent got a belt fitted? Im just trying to work out how to get it timed up on standard marks as the pulleys dont have any marking on the outer edge. Once i can sus that then i can adjust the timing 7 degrees. Which i believe is on the crank which would be around half a tooth on the cam?? Ill get some pics up when i get down to explain

Cheers

[skud52]

ok this is what i mean, this is the old pulley, the timing mark lines up with the dowel hole at the top

http://img.photobucket.com/albums/v482/skud52/Snapbucket/A9E9B2A4_zpsaf90bc32.jpg (http://smg.photobucket.com/user/skud52/media/Snapbucket/A9E9B2A4_zpsaf90bc32.jpg.html)

this is the new pulley with the only visible marks being on the inside on the pulley

http://img.photobucket.com/albums/v482/skud52/Snapbucket/57D918E5_zpsa6d7f3e1.jpg (http://smg.photobucket.com/user/skud52/media/Snapbucket/57D918E5_zpsa6d7f3e1.jpg.html)

and then a comparrison on the two fitted with the cam in the smae place

timing mark at top

http://img.photobucket.com/albums/v482/skud52/Snapbucket/ACD45AA7_zps2bf4580b.jpg (http://smg.photobucket.com/user/skud52/media/Snapbucket/ACD45AA7_zps2bf4580b.jpg.html)

timing mark on the bottom

http://img.photobucket.com/albums/v482/skud52/Snapbucket/628FFECF_zps0152d2f7.jpg (http://smg.photobucket.com/user/skud52/media/Snapbucket/628FFECF_zps0152d2f7.jpg.html)

so do i need to simply mark the cam up like the old 1 then set the cambelt up to standard marks, then loosen off the inlet allen bolts on the pulley, move the crank 7 degrees and then tighten, or is there more to it than that?

cheers

[Benn]

I run a QED pulley, i followed the tv guide and retarded it 7deg at the cam via the pulley. Which gained me more torque and a few more horses on the next RR i did.

[skud52]

So did your pulley have the standard timing mark on it? And did you just set the cam up to 7 degrees then fit it like normal? Im unsure what to do with the pulleys i have as the marks are 180 out to the original pulleys

[Benn]

Yea std mark, then lines either side to advance or retard... Then just losen the bolts and move back.... Just like tv guide said.