MGB & GT Forum
SU electric fuel pump problem?
Posted by mgtf-1500
mgtf-1500
IAN GAIL
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Topic Creator (OP)
Jul 29, 2015 01:24 PM
Joined 9 years ago
328 Posts
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My SU fuel pump stopped! I 'emeried' the points and successfully inspected the diaphragm. Hooking the pump up on the bench, I turned the diaphragm until the pump would click away happily. However, after I secured the top half to the base, the pump wouldn't work. Successive repeats of the previous performance yields the same result. What am I doing wrong - help please? Best wishes, ian@thegailgroup.com.
Donthuis
Don van Riet
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Jul 29, 2015 01:31 PM
Top Contributor
Joined 10 years ago
13,336 Posts
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Follow the recipe in setting the contacts, JT has a Youtube video on this. If it still refuses to work, console yourself that SU pumps are unpredictable. I waved my SU goodbye by mounting the fully plug lcompatible fully electronic Hardi instead. MOSS Europe sells them just now for a good price, maybe MOSS USA will follow shortly?
PS Some wonder about my Hardi promotion, but I do not have a commercial interest, just a preference for German dependability over dubious British quality..
Edited 2 time(s). Last edit at 2015-07-29 01:33 PM by Donthuis.
PS Some wonder about my Hardi promotion, but I do not have a commercial interest, just a preference for German dependability over dubious British quality..
In reply to # 3049316 by mgtf-1500
My SU fuel pump stopped! I 'emeried' the points and successfully inspected the diaphragm. Hooking the pump up on the bench, I turned the diaphragm until the pump would click away happily. However, after I secured the top half to the base, the pump wouldn't work. Successive repeats of the previous performance yields the same result. What am I doing wrong - help please? Best wishes, ian@thegailgroup.com.
Edited 2 time(s). Last edit at 2015-07-29 01:33 PM by Donthuis.
Jul 29, 2015 03:57 PM
Joined 10 years ago
352 Posts
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Jul 29, 2015 05:17 PM
Joined 18 years ago
7,282 Posts
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Ian G. For starters, you are not adjusting the diaphragm correctly and I am wondering if the points adjustment has been done correctly. There are 2 different points configuration that have been used over the years and if you are adjusting them according to the TF shop manual, you will never get the pump to work reliably. E-mail me at SUfuelpumps@donobi.net and we can discuss this further.
Cheers,
Dave DuBois
1953 MGTD
1966 MGB
http://homepages.donobi.net/sufuelpumps/
Cheers,
Dave DuBois
1953 MGTD
1966 MGB
http://homepages.donobi.net/sufuelpumps/
Jul 29, 2015 06:55 PM
Top Contributor
Joined 12 years ago
26,297 Posts
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In reply to # 3049322 by Donthuis
console yourself that SU pumps are unpredictable. I waved my SU goodbye by mounting the fully plug lcompatible fully electronic Hardi instead. PS Some wonder about my Hardi promotion, but I do not have a commercial interest, just a preference for German dependability over dubious British quality..
Tongue in cheek I hope. If not sell your B and move on.
B
Life's most persistent and urgent question is, "What are you doing for others?"
Donthuis
Don van Riet
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Jul 30, 2015 08:08 AM
Top Contributor
Joined 10 years ago
13,336 Posts
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Maybe some extra info is needed for a more balanced opinion:
When I bought my 1972 B in August 1978 I joined the Dutch MG Car Club and found two types of members. The older ones, fully dressed with blazers adorned with MGCC insigna and their wives in long dresses were only driving the MG for "maintaining the breed". It figures they were uncritical about British quality, whilst admitting that for not getting your hands dirty one should buy a Rover instead. In reality they hardly touched their B's and left everything to some Leyland garage, which were still widely available at the time
The second group of members were much younger and were almost constantly busy with their cars, getting their hands dirty. Those ones, to which I at the time belonged for age reasons (I am now an old one myself), started by telling me all about the many failures a MG-owner could suffer and how to reduce chances on those failures by mounting non-British parts, notably German and Swedish ones. Examples at that time were German pistons for the B-engine and as an example for those unfortunates owning a Triumph Stag on their third short engine, the Saab oilpumps. The list became longer over the years, since my car parts provider at the time had to excuse himself often for the low quality of parts he got from Britain. Jokes on the doors of wellknown dealers of the period he visited were: "guarantee until you pass this door" and "this is the best part ever fallen off a British car" etc.... Not long after, BL folded and Unipart lost its continuity in parts provision.
For me nothing changed over the years: anything doubtful in British car design or individual parts, I just as well replace by non-British solutions. In fact MOSS Europe behaves in a similar fashion by selling parts looking like the original ones, but produced elsewhere. They used to come from India in the 70's and 80's, now mostly from China and still some from Japan or the USA.
Looking from the outside, one would not recognise the bumpers on my B as produced in India, my new doors and fenders coming I do not know where from , petrol pump from Germany, washer pump from Japan and -thanks to Gerry Masterman- a rebuilt steering column with parts from the States. I just installed some fine stainless steel parts from AshleyHinton UK, where they come from does not interest me, they look and function fine. Of course my Michelin tires come from France, only the original Good Year tires were from Britain
PS I later recognised a third group of MGCC members, keen on winning as many concours prices as possible. This meant retro-fitting the oldest cars with period parts even if this meant lower performance. Those cars often arrived on such concours events without driving a single mile on their own. To such members parts quality was no concern, but British (N)OS all the more
When I bought my 1972 B in August 1978 I joined the Dutch MG Car Club and found two types of members. The older ones, fully dressed with blazers adorned with MGCC insigna and their wives in long dresses were only driving the MG for "maintaining the breed". It figures they were uncritical about British quality, whilst admitting that for not getting your hands dirty one should buy a Rover instead. In reality they hardly touched their B's and left everything to some Leyland garage, which were still widely available at the time
The second group of members were much younger and were almost constantly busy with their cars, getting their hands dirty. Those ones, to which I at the time belonged for age reasons (I am now an old one myself), started by telling me all about the many failures a MG-owner could suffer and how to reduce chances on those failures by mounting non-British parts, notably German and Swedish ones. Examples at that time were German pistons for the B-engine and as an example for those unfortunates owning a Triumph Stag on their third short engine, the Saab oilpumps. The list became longer over the years, since my car parts provider at the time had to excuse himself often for the low quality of parts he got from Britain. Jokes on the doors of wellknown dealers of the period he visited were: "guarantee until you pass this door" and "this is the best part ever fallen off a British car" etc.... Not long after, BL folded and Unipart lost its continuity in parts provision.
For me nothing changed over the years: anything doubtful in British car design or individual parts, I just as well replace by non-British solutions. In fact MOSS Europe behaves in a similar fashion by selling parts looking like the original ones, but produced elsewhere. They used to come from India in the 70's and 80's, now mostly from China and still some from Japan or the USA.
Looking from the outside, one would not recognise the bumpers on my B as produced in India, my new doors and fenders coming I do not know where from , petrol pump from Germany, washer pump from Japan and -thanks to Gerry Masterman- a rebuilt steering column with parts from the States. I just installed some fine stainless steel parts from AshleyHinton UK, where they come from does not interest me, they look and function fine. Of course my Michelin tires come from France, only the original Good Year tires were from Britain
PS I later recognised a third group of MGCC members, keen on winning as many concours prices as possible. This meant retro-fitting the oldest cars with period parts even if this meant lower performance. Those cars often arrived on such concours events without driving a single mile on their own. To such members parts quality was no concern, but British (N)OS all the more
In reply to # 3049558 by riley1489
Tongue in cheek I hope. If not sell your B and move on.
B
In reply to # 3049322 by Donthuis
console yourself that SU pumps are unpredictable. I waved my SU goodbye by mounting the fully plug lcompatible fully electronic Hardi instead. PS Some wonder about my Hardi promotion, but I do not have a commercial interest, just a preference for German dependability over dubious British quality..
Tongue in cheek I hope. If not sell your B and move on.
B
Jul 30, 2015 10:32 AM
Joined 10 years ago
352 Posts
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