• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
  • When posting a classified ad, you MUST select a prefix from the drop-down next to the subject line. If you don't you will get an error and your ad will not be posted!
Tips
Tips

stromberg 175 cd?

Share this page

M

mtlman8

Jedi Trainee
Country flag
Offline
is adjusting the jet opposite of an su? the manual say up is rich and out or down is lean, but that sounds wrong. any info helps thanx.
 
With Strombergs that I know about you adjust the height of the needle, down through the top of the dashpot. So yes, higher is richer.
 
Roger said:
With Strombergs that I know about you adjust the height of the needle, down through the top of the dashpot. So yes, higher is richer.
Click to expand...
That is true for the later 'emissions' ZS carbs, as found on later TR6.

However, the ZS carbs used on the TR4 have an adjustment screw on the bottom, that changes the jet position. Turning the screw clockwise raises the jet and leans the mixture.
 
thanks randall. so clockwise(out or down) is lean?
 
If you're using the adjusting tool, no, clockwise is rich. You are turning a stationary screw set-up. When you think you're turning it leaner (clock wise) it's actually pulling the needle up (richer).
 
Back
Top