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SU thread ?
Posted: Mon Jun 08, 2020 10:53 pm
by Rubber Sprung
Would anyone know what the thread is in the top of the dashpot on a 11/4 SU carb that the damper rod screws into please ?
Re: SU thread ?
Posted: Mon Jun 08, 2020 11:47 pm
by dklawson
According to information in the thread linked below the dashpot is threaded 11/16" x 24
http://forum.etypeuk.com/viewtopic.php?t=10443
Re: SU thread ?
Posted: Tue Jun 09, 2020 11:38 am
by mk1
Re: SU thread ?
Posted: Tue Jun 09, 2020 9:02 pm
by Rubber Sprung
Thank you gents I've ordered them .Great help .
Re: SU thread ?
Posted: Wed Jun 10, 2020 8:56 am
by mk1
As a matter of intyerest, why are you re tapping the thread in the top of an SU?
I did it once as i needed to reduce the height of a carb by about 1/4" I achieved this by chopping the top off the dash pot & retapping it. It worked fine.
Re: SU thread ?
Posted: Wed Jun 10, 2020 11:08 pm
by Rubber Sprung
Thats exactly what I'm doing ,reducing the height . Built a Cannon trials car chassis with twin HS2 s on a MG 1100 manifold and then decided to use a pair of H1 s on a Frogeye manifold and the bonnet won't fit now .Trying to keep gas speeds up as its only a 948cc engine due to the regulations .
Re: SU thread ?
Posted: Thu Jun 11, 2020 8:15 am
by mk1
Good luck.
I only know what a cannon Trials car is thanks to Car Sosage.