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jastx

Original Poster:

137 posts

39 months

[news] 
Saturday 24th November 2012 quote quote all
Please help me identify this screw and locknut on my Zenith Stromberg 175 CD-2 carburetors? Is it possibly the Vent Lever Stop Screw? I'm looking for information on how it should be set. One of my carbs has it set fully in (shown). On the other it's fully out.

Thanks!


eric0

40 posts

89 months

[news] 
Sunday 25th November 2012 quote quote all
Yes that is the 'Vent Lever Stop Screw' . I found a very good web site, www.buckeyetriumphs.org a couple of years back when I rebuilt my Strombergs. It has everything you could wish to know about these carbs, a lot more than in the manual!

Here's the section relating to the stop screw, " The manuals I have show no spec for setting the vent lever adjusting screw. the two new carbs I have that I know nobody has screwed with have the lever adjusted so that it is vertical when the throttle is closed. Next , I inserted a suitable hose into the vent opening with the brass sleeve on the air filter side of the carb. I then sucked on the hose and noted that as the throttle is moved off idle, the vent is opened. I adjusted the stop screw such the vent is just sealed when the throttle is returned to idle I then adjusted it a further half turn to make sure it is sealed in the idle position".

These vents are part of the 'FED' spec set up which was not required in the UK but I guess being in the US you will still have this system, carbon canister, etc fitted? Even if not they are still a part of the carbs and can cause problems.

Most people will say Strombergs are a load of chew, which they are and that you should bin them in favour of SU's. As I'm intending to fit EFi at some point, I didn't want to do this. Some people in the States have actually converted these carbs into throttle body's, I guess so they look like standard carbs and can sneak through the US version of the MOT?

Edited by eric0 on Sunday 25th November 00:07


Edited by eric0 on Sunday 25th November 00:14


Edited by eric0 on Sunday 25th November 00:15

bluezeeland

972 posts

44 months

[news] 
Sunday 25th November 2012 quote quote all
That's what i thought, the TR boys should know about Strombergs, and buckeye is a good site for advise (also brakes and suspension, as original triumph on the M')

Succes !

jastx

Original Poster:

137 posts

39 months

[news] 
Sunday 25th November 2012 quote quote all
Thanks for the referrals.

I know most of the 2500M production was for export. We're Zenith Stromberg carbs used on those that were not exported too?

jastx

Original Poster:

137 posts

39 months

[news] 
Sunday 25th November 2012 quote quote all
Thanks for the referrals.

I know most of the 2500M production was for export. We're Zenith Stromberg carbs used on those that were not exported too?
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eric0

40 posts

89 months

[news] 
Wednesday 28th November 2012 quote quote all
I can't remember the exact figures but approx 973 ish were built with 53 ish, right hand drive and staying in the UK. All off them will have had 175's fitted originally, including the UK 53.

Amongst other cars fitted with 175’s include TR250, TR6 (125), 2500 TC saloon (Sedan). Range Rovers and some Volvos of the time had 175’s fitted of differing specs.

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