• 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.)
Tips
Tips

Carb daspots

Share this page

Jeepster

Jeepster

Jedi Trainee
Country flag
Offline
When topping up the carb dashpots with oil, to what level should they be filled?
Obviously not to the top of the dash pot.
 
Hey Jeepster,
The proper procedure is to fill "below the top of the hollow piston rod", not "below the top of the chamber neck". Or another way to state it is fill to where the neck starts tapering up from the large diameter chamber. A lot of guys use automatic trans fluid but SU recommends 20 weight.
Regards,
Mike
 
bighealeysource said:
Hey Jeepster,
The proper procedure is to fill "below the top of the hollow piston rod", not "below the top of the chamber neck". Or another way to state it is fill to where the neck starts tapering up from the large diameter chamber. A lot of guys use automatic trans fluid but SU recommends 20 weight.
Regards,
Mike
Click to expand...
I recommend Marvel Mystery Oil. It also lubricates the upper end too and is close to the same consistancy as the SU oil and trans fluid.
 
Jeepster said:
When topping up the carb dashpots with oil, to what level should they be filled?
Obviously not to the top of the dash pot.
Click to expand...

If by chance you fill it up too much, no worries. It will find the level it wants to be by pushing the excess out.
 
Back
Top