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PUMP UP THE FUEL VOLUME
Posted: Wed Apr 28, 2004 4:38 pm
by sloopjohnrb
Hi. The fuel pump on Gladys, my 1962, 948 cc, has stuck a few times and needs replacing.
Before I go ahead and do this, I wonder if anyone has any advice/tips for replacing the pump, which I would be most grateful for.
Also, I would welcome anwers to the following.
A. Is it best to replace the pump with the newer hassle-free SU type or keep to the original type of pump with its' Achilles heel?
B. DSN sell an "Improvement Kit" for existing, orignal pumps, anyone had experience of this kit and if so, are they OK or a waste of time and money?
C. is it a job best left to a garage or can someone with a reasonable mechanical ability do it?
Best wishes
JOHN
Posted: Wed Apr 28, 2004 4:48 pm
by Matt
A - Ask someone else
B - If your pump is already broken it probably wont fix it!
C - I would say that someone with reasonable mechanical ability could do it! I would definately give it a go!
Posted: Wed Apr 28, 2004 4:51 pm
by salty_monk
I've just replaced with an original SU from Bull Motif on our 1098. Think it was £45 plus vat & del.
They are the same as original & have contacts but they have a small capacitor in there to stop them arcing & getting stuck & are allegedly more reliable than the ones with a circuit to replace the contacts.
Have no experience of the DSN kit, be interested to hear what anyone else knows about it though!
The job is really easy, I managed it in the rain at twilight & it still only took around 10 mins... I also replaced the fuel pipe as a matter of course as I didn't know how old it was & they are only 6 quid.. Thought the length was a little on the "how short can we get this to save material" side but it fits ok....
Posted: Wed Apr 28, 2004 5:38 pm
by rayofleamington
The fuel pump on Gladys, my 1962, 948 cc, has stuck a few times
Are the points a bit burned?? I would just fit new points, otherwise it would be like replacing the distributor everytime the contact breaker points were old....
B - If your pump is already broken it probably wont fix it!
Matt - I think you answer in 'A' was more suitable...
Posted: Wed Apr 28, 2004 7:12 pm
by Matt
So if the pump is broken, fitting an upgrade kit will help??? "here you are sir, your engine has thrown a con-rod have a better head to make it work better........"
Posted: Wed Apr 28, 2004 7:28 pm
by Gareth
The DSN kit is probably just the electrical contact module (loads of little circuity things) that SU fit to their "electronic pump". The electronic is the same as the standard pump, but they have an electrical circuit instead of the electromagnetic contacts.
If the diaphragm in the pump is U/S then the kit won't help... however if it's just the points, then it may be a fit-and-forget solution. There again, you could just clean the points with fine emery paper.
Posted: Wed Apr 28, 2004 8:06 pm
by rayofleamington
has stuck a few times
the clue is in the question..... surely it's Points
Posted: Thu Apr 29, 2004 2:23 am
by Chris Morley
It's very likely to simply be the points and a few minutes with a nail file will probably cure it for no cost at all. Failing that a set of new points will cost a lot less. Replacing these points requires less mechanical ability than re-wiring a plug
Don't throw your money away on a new pump.
The fuel pump points sometimes stick on my scrap 4-door because it only gets started a few times a year. A tap with the starting handle always gets it going.
Posted: Thu Apr 29, 2004 9:43 am
by forbesg
salty_monk wrote:..They are the same as original & have contacts but they have a small capacitor in there to stop them arcing ..
Do you know what size the cap is?
-Regards
Grant
Posted: Thu Apr 29, 2004 9:46 am
by MrA.Series
salty_monk wrote:They are the same as original & have contacts but they have a small capacitor in there to stop them arcing & getting stuck...
Don't tell me, the DSN improvement 'kit' is just one capacitor which you connect up
"Yes, that'll be £15.95 for the complete kit, Sir...."
Posted: Sun May 02, 2004 4:57 pm
by rayofleamington
For those who want to know what's in the upgrade kit....
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 2476959812
Am I correct in guessing it was just the points, and it's now fixed without need for the full overhaul / upgrade kit?
Thanks
Posted: Mon May 03, 2004 7:10 pm
by sloopjohnrb
Hiya all, Many thanks for all the tips and help re Glady's fuel pump.
I checked out all the possible leads you kindly supplied.
The pump had been working intermittently and eventually I found it to be faulty, in its opwn right, so have replaced it, and problem soklved.
Geeat stuff, and many thanks !