• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

General MG stromberg carb

Mark N

Freshman Member
Country flag
Offline
The air valve in my 77 Stromberg 150 CD carb does not lift when the throttle is pushed. Car starts hard and idles rough for a few seconds then stalls. If I manually lift the valve the engine revs. Not sure how to fix the problem.

The car was running fine nothing was touched prior to this problem.

Any info would be appreciated.
 

dklawson

Yoda
Offline
Glad you found it.

I recently had problems with new diaphragms which were too stiff to roll smoothly. Then I bought good ones from Joe Curto.
 

DrEntropy

Great Pumpkin
Platinum
Country flag
Offline
Typically, the first thing to suspect is a diaphragm tear. Most aftermarket "kits" are inferior, get the ones from Curto.

So, Put-in-Bay? Pat Dailey fan?

Spent my youth largely in Ashtabula county. G.O.T.L. specifically. Have photos of the Edmond Fitz in Ashtabula Harbor in '66 or '67.
 

JPSmit

Moderator
Staff member
Silver
Country flag
Offline
Not exactly visualizing this but, ethanol can gum up carbs as well
 

DrEntropy

Great Pumpkin
Platinum
Country flag
Offline
And weaken older diaphragms, gum up needles, generally plug up small openings. Use something like "Stabil" if the engine is not being run for months. A good plan is to run it up to temp for a few minutes every month or so.
 
Similar threads
Thread starter Title Forum Replies Date
J TR6 Stromberg Carb Mixture Adjustment Triumph 6
T TR6 Carb Vacuum Port- TR6 Zenith-Stromberg Carbs Triumph 4
R J-H Stromberg carb connections? Where do they go? Other British Cars 2
R GT6 Carb Floats for Stromberg 150 . Triumph 5
SherpaPilot TR6 Stromberg CD 175 Carb Tuning Triumph 8
P TR6 Tr6 stromberg carb gas leak from starter valve bolt shaft Triumph 5
bighealeysource Stromberg carb help needed for TR buddy Triumph 8
H Stromberg Carb Sync and adjust Triumph 6
JPSmit Stromberg Carb Question Triumph 15
A XKE Series II Stromberg Carb Upgrade Jaguar 4
S Question on rebuilding Stromberg carb Triumph 24
T Stromberg 150 CD carb question Triumph 4
C Stromberg Carb 'O' ring Triumph 3
dklawson Improvising Stromberg Carb Tools Triumph 14
J TR4/4A TR4 Stromberg Carb Question ? Triumph 12
I TR6 69 TR6 Zenith Stromberg carb help Triumph 1
P GT6 GT6 stromberg carb question Triumph 6
SCguy TR4/4A TR4 Stromberg Carb. adjustment Triumph 12
M Stromberg Carb Problem Triumph 5
K Stromberg carb question Triumph 4
S stromberg carb adjusting Triumph 2
Got_All_4 STROMBERG NEEDLES FOR 3 CARB SET UP Triumph 2
johnrip Zeinith-Stromberg Carb K+N Air Filters Triumph 8
S TR4/4A TR4-Stromberg throttle shaft play Triumph 3
Celtic 77 MGB 77 Stromberg issues MG 12
Tim Tucker TR4/4A Stromberg 175CD (c.1825) rich above idle Triumph 12
V MGB Zenith Stromberg and a Cat on an earlier model car? MG 22
Quackedo TR6 1969 TR6 Stromberg 175 CD-6 Triumph 0
Got_All_4 TR6 Non Adjustable Stromberg Pistons Triumph 8
H TR6 1974 tr6 stromberg 175 cd-2 choke Triumph 2
S TR6 Stromberg Bypass Valves - Question Triumph 11
T TR6 My '74 TR6 Zenith Stromberg Carbs Float Bowls Leaking Gas Triumph 11
Sarastro TR4/4A Stromberg linkage question Triumph 4
SherpaPilot TR6 Stromberg War, Finally Success Triumph 2
R TR2/3/3A Stromberg vs. SU carbs [discussion/advice] Triumph 17
D Stromberg Dash Pot Screws Jaguar 3
Merlin63Tr4 TR4/4A Cracked Zenith-Stromberg float assemblies Triumph 13
steveg Online SU and Stromberg needle database with comparison charting Austin Healey 2
bfitz Zenith Stromberg O ring question Other British Cars 8
K TR4/4A Stromberg..."coupler" that links vacuum outlet to diff vacuum line is N/A? Triumph 3
K TR4/4A Stromberg question. Triumph 13
M TR4/4A Stromberg CD175carb query Triumph 7
RickB MGB Stromberg on my 80 MGB - fast idle this morning MG 6
RickB MGB HS6 or HIF4 bolt right on in place of Stromberg? MG 6
Zimmycobra TR4/4A Zenith Stromberg questions Triumph 13
M TR4/4A Stromberg ? Triumph 4
L zenith-stromberg carbs Lotus 11
G Stromberg cd150 question Spridgets 1
TR6BobNF General Tech Midget Stromberg 150 Adjustment MG 8
Airfix Wedge TR8 Zenith Stromberg carbs slow deceleration Triumph 1

Similar threads

Top