General Car Related Discussion. To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.

st170 retarding timing??

Old 08-03-2013, 09:17 PM
  #1  
The Underdog
you cant fix stupid
Thread Starter
 
The Underdog's Avatar
 
Join Date: Nov 2012
Location: s wales
Posts: 2,133
Received 59 Likes on 53 Posts
Default st170 retarding timing??

Has anyone here not used a vernier on the exhaust cam and slackend the stock pulley and retarded 6 degrees this way.

im tempted to do it but looking for some advice on it first.

thanks in advance
Old 08-03-2013, 09:52 PM
  #2  
Cossie Sean
big floppy donkey dick
 
Cossie Sean's Avatar
 
Join Date: May 2003
Location: Rouse Sport heaven ;)
Posts: 4,514
Likes: 0
Received 3 Likes on 3 Posts
Default

its possible this way and has the same effect, but with a vernier they are marked with the degree to adjust adv/ret

you would have to know bang on where 6degrees was on the std pulley, then dowell the pulley as they move when you torque them up
Old 08-03-2013, 09:58 PM
  #3  
The Underdog
you cant fix stupid
Thread Starter
 
The Underdog's Avatar
 
Join Date: Nov 2012
Location: s wales
Posts: 2,133
Received 59 Likes on 53 Posts
Default

Originally Posted by Cossie Sean
its possible this way and has the same effect, but with a vernier they are marked with the degree to adjust adv/ret

you would have to know bang on where 6degrees was on the std pulley, then dowell the pulley as they move when you torque them up

thank you.

i was thinking of fitting the belt as stock then remove the straight bar that locks the rear of the cams and i would twist the cam. im thinking of making or having made a 5mm bar with a 6 degree angle in one end to align the exaust cam if that makes sense.

cheers
Old 08-03-2013, 10:05 PM
  #4  
Cossie Sean
big floppy donkey dick
 
Cossie Sean's Avatar
 
Join Date: May 2003
Location: Rouse Sport heaven ;)
Posts: 4,514
Likes: 0
Received 3 Likes on 3 Posts
Default

erm, in all fairness

i would be inclined to mark the pulley, and even drill a small pilot hole when it is marked up at 6degrees

then put the cam and pulley in a vice (gently mind!) and tap a roll pin into it

bit not all the way through as it`ll piss oil everywhere!
Old 08-03-2013, 10:49 PM
  #5  
The Underdog
you cant fix stupid
Thread Starter
 
The Underdog's Avatar
 
Join Date: Nov 2012
Location: s wales
Posts: 2,133
Received 59 Likes on 53 Posts
Default

if the pulleys as standard are just held by bolt then i just thought i could put thread lock on bolt and re tighten back in after i turn the cam -6deg. iv never done a belt on a zetec or any other similar engine(last was cvh and 8v vaux a long time back) so iv plenty to learn but im willing to try most things if it will work.

im a carpenter so have some knowledge on working with angled degrees and have some ideas on how i can make up devices to adjust fairly accurately.

its just the cost of the pulley that puts me off. for a start they come in pairs and cheapest ive found is £120

if doing it diy is too risky for the reward then i may re think it though??
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Palethorpe01
General Car Related Discussion.
15
18-08-2015 06:09 AM
Rickyrustyfox
General Car Related Discussion.
0
13-08-2015 01:11 PM
track.focus'd
Restorations, Rebuilds & Projects.
26
12-08-2015 05:53 PM


Thread Tools
Search this Thread
Quick Reply: st170 retarding timing??



All times are GMT. The time now is 05:01 PM.