Fuel Pump

[capaciousmg@aol.com]

T Fellows My brass base fuel pump quit. I took it apart and all is clean. The contact are good. When I hook it up to the battery I can make it run by putting a little pressure on the plunger. (the base is off now). It will run quite strong with a little pressure. I can push on it untill the contacts break and it shuts off as it should. It just will not run without a little pressure on the plunger inward. I have tried to adjust it with the plunger depth, which will get it to run with out pressure but it is very very slight pulse and then the adjustment is out of whack for the pressure shut off. Anyone know what might have happened. It was working fine before. Joe Potter Eugene, Oregon USA http://hometown.aol.com/jtpaki/index.html

[Viv James TraX Interconnect (Pty.) Ltd]

From: "Alan Webster" alan@somex.freeserve.co.uk> To: "'Viv James TraX Interconnect \(Pty.\) Ltd'" viv@trax.co.za> Subject: RE: Fuel Pump Date sent: Sat, 24 May 2003 09:35:35 +0100 Alan, I attacked the SU pump on Saturday and found the main problem. It was a broken wire from the solenoid coil to the little connection tag on the power connection. This was held in place with some insulation and every now and again it just lost contact. A good clout had usually fixed this. This must have been the trouble all along. I also examined a few discarded points sets and found that the goody that I bent should actually be exactly level with the rest of the points frame. I corrected this and then reset the pump as per your (and brown book) instructions, taking care that the diaphragm spring was properly centred as well as preloading the diaphragm which you did not mention. Now it pumps like crazy. I then got busy with my 2 spare pumps and found that one had a cracked plastic bridge and the other had the same broken connection. Now after the same treatment, they also pump like crazy. Thanks for your help. Viv

[Steve Plath]

The engine is in and everything is hooked up (I think). Got my coil connected properly (I hope) so here's my problem. The entire fuel system was removed and either cleaned and reinstalled or replaced, therefore there is no fuel in the lines. I purchased a new negative ground (my car is neg ground) fuel pump from Moss. How do I prime the pump? I don't hear any ticking or other indication the pump is working. The hot and ground leads are working. Will this thing pump with no fuel in the lines? Is there something I should be doing? Steve Plath TC 5731 [Non-text portions of this message have been removed]

[Steve Plath]

Maurice, The carb bowls are bone dry. The hot lead is powered and the ground connection is good and tested out. It's solid state fuel pump so I don't know if they tick or not, but this one is not ticking. Steve Plath

----- Original Message ----- From: "Maurice Paton" maurice.paton@wam.co.nz> To: "Steve Plath" splath@comcast.net> Sent: Sunday, January 09, 2005 5:59 PM Subject: RE: [mg-tabc] Fuel pump There is no need to prime your SU fuel pump. With no fuel in it it should be ticking like crazy. Are you sure it's getting power? If it's getting power and not ticking, either the carbs are full of fuel or the points in the fuel pump are set incorrectly (not likely with a new pump, but you never know). Incidently, the power supply to the fuel pump is looped off the supply to the coil so if your fuel pump isn't working there's a good chance that your coil isn't either, unless it's just a bad connection at the fuel pump. Check the earth connection also. I have just finished fitting a new wiring loom to my TC and it sure has improved things gremlin wise. Everything works now as it should with the exception of the clock! Regards, Maurice Paton TC9357 -----Original Message----- From: Steve Plath [mailto:splath@comcast.net] Sent: Monday, 10 January 2005 2:34 p.m. To: mg tc group Subject: [mg-tabc] Fuel pump The engine is in and everything is hooked up (I think). Got my coil connected properly (I hope) so here's my problem. The entire fuel system was removed and either cleaned and reinstalled or replaced, therefore there is no fuel in the lines. I purchased a new negative ground (my car is neg ground) fuel pump from Moss. How do I prime the pump? I don't hear any ticking or other indication the pump is working. The hot and ground leads are working. Will this thing pump with no fuel in the lines? Is there something I should be doing? Steve Plath TC 5731 [Non-text portions of this message have been removed] Yahoo! Groups Links

[Steve Plath]

Thom, Tank was boiled before reinstalling and it's clean. I also installed a new filter in the tank and replaced all the fuel lines. Right now I have about 3 gals of gas in the tank, should I fill the tank so the level of gas is higher than the fuel pump? Steve Plath

----- Original Message ----- From: LuckyFloridaLin@aol.com To: splath@comcast.net Sent: Sunday, January 09, 2005 5:46 PM Subject: Re: [mg-tabc] Fuel pump Dear Steve I have found that you need fuel in the system. Have you made sure that the fuel tank has been flushed and is clean? Mine was not and I had to bring it to a radiator shop where they boiled out fo a week Trying to clean it out yourself is not possible. It is amazing how much varnish crud remains. Best of luck. Tally Ho! Thom Collins

[SANDY SANDERS]

Steve; Try something small such as putting air pressure in the tank to wet the check valves in the pump. I think that you may have a bad pump or poor connections because it certainly should click as an indication of working. I have put a filler type rag in the tank neck and then blowing air with an air hose into the tank. Do not pressurize to any great extent .It may help if you first remove the line from pump to carburetor. If you have a vacuum source you could try to suck the fuel through from the tank . I have also had to spray oil into the valve assy to get them to prime. Sandy Sanders

----- Original Message ----- From: Steve Plathsplath@comcast.net> To: mg tc groupmg-tabc@yahoogroups.com> ; LuckyFloridaLin@aol.comLuckyFloridaLin@aol.com> Sent: Sunday, January 09, 2005 9:02 PM Subject: Re: [mg-tabc] Fuel pump Thom, Tank was boiled before reinstalling and it's clean. I also installed a new filter in the tank and replaced all the fuel lines. Right now I have about 3 gals of gas in the tank, should I fill the tank so the level of gas is higher than the fuel pump? Steve Plath ----- Original Message ----- From: LuckyFloridaLin@aol.comLuckyFloridaLin@aol.com> To: splath@comcast.netsplath@comcast.net> Sent: Sunday, January 09, 2005 5:46 PM Subject: Re: [mg-tabc] Fuel pump Dear Steve I have found that you need fuel in the system. Have you made sure that the fuel tank has been flushed and is clean? Mine was not and I had to bring it to a radiator shop where they boiled out fo a week Trying to clean it out yourself is not possible. It is amazing how much varnish crud remains. Best of luck. Tally Ho! Thom Collins Yahoo! Groups Links [Non-text portions of this message have been removed]

[Steve Plath]

Should a solid state fuel pump tick? Steve Plath

----- Original Message ----- From: "Maurice Paton" maurice.paton@wam.co.nz> To: "Steve Plath" splath@comcast.net> Sent: Sunday, January 09, 2005 6:35 PM Subject: RE: [mg-tabc] Fuel pump Steve, You should still hear it ticking! If it aint ticking its broke! -----Original Message----- From: Steve Plath [mailto:splath@comcast.net] Sent: Monday, 10 January 2005 3:10 p.m. To: mg tc group; Maurice Paton Subject: Re: [mg-tabc] Fuel pump Maurice, The carb bowls are bone dry. The hot lead is powered and the ground connection is good and tested out. It's solid state fuel pump so I don't know if they tick or not, but this one is not ticking. Steve Plath ----- Original Message ----- From: "Maurice Paton" maurice.paton@wam.co.nz> To: "Steve Plath" splath@comcast.net> Sent: Sunday, January 09, 2005 5:59 PM Subject: RE: [mg-tabc] Fuel pump There is no need to prime your SU fuel pump. With no fuel in it it should be ticking like crazy. Are you sure it's getting power? If it's getting power and not ticking, either the carbs are full of fuel or the points in the fuel pump are set incorrectly (not likely with a new pump, but you never know). Incidently, the power supply to the fuel pump is looped off the supply to the coil so if your fuel pump isn't working there's a good chance that your coil isn't either, unless it's just a bad connection at the fuel pump. Check the earth connection also. I have just finished fitting a new wiring loom to my TC and it sure has improved things gremlin wise. Everything works now as it should with the exception of the clock! Regards, Maurice Paton TC9357 -----Original Message----- From: Steve Plath [mailto:splath@comcast.net] Sent: Monday, 10 January 2005 2:34 p.m. To: mg tc group Subject: [mg-tabc] Fuel pump The engine is in and everything is hooked up (I think). Got my coil connected properly (I hope) so here's my problem. The entire fuel system was removed and either cleaned and reinstalled or replaced, therefore there is no fuel in the lines. I purchased a new negative ground (my car is neg ground) fuel pump from Moss. How do I prime the pump? I don't hear any ticking or other indication the pump is working. The hot and ground leads are working. Will this thing pump with no fuel in the lines? Is there something I should be doing? Steve Plath TC 5731 [Non-text portions of this message have been removed] Yahoo! Groups Links

[Gene Gillam]

Steve, You might want to try your old pump again...it's not going to be polarity sensitive (unless someone has modified it by placing a diode across the contacts). And yes, a solid state pump should still tick. Gene Gillam Saucier, MS -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.9 - Release Date: 1/6/2005

[Diecuts@aol.com]

Hi all, An easy way to check if the pump is working (and it should tick!) , is to independently connect it to a spare battery. My TA has 3 fuel pumps, one for the main line, one for the reserve line, and, of course, the original when it feels up to it! The two line pumps are very small (1" cube prox.) and solid state, fitted behind the tank out of sight. One did not work initially just like yours, returned it for one that did. Get the low pressure (4-9 oz per min) not the high pressure (6-14) as the high pressure was nothing but problems. Good Luck. Cheers, Lee Jacobsen, Dearborn, MI TA2969 tickford [Non-text portions of this message have been removed]

[fnitz]

The several I have seen do. The tick is artificial to replicate the original SU noise. -----Original Message----- From: Steve Plath [mailto:splath@comcast.net] Sent: Sunday, January 09, 2005 7:19 PM To: mg tc group; Maurice Paton Subject: Re: [mg-tabc] Fuel pump Should a solid state fuel pump tick? Steve Plath

----- Original Message ----- From: "Maurice Paton" maurice.paton@wam.co.nz> To: "Steve Plath" splath@comcast.net> Sent: Sunday, January 09, 2005 6:35 PM Subject: RE: [mg-tabc] Fuel pump Steve, You should still hear it ticking! If it aint ticking its broke! -----Original Message----- From: Steve Plath [mailto:splath@comcast.net] Sent: Monday, 10 January 2005 3:10 p.m. To: mg tc group; Maurice Paton Subject: Re: [mg-tabc] Fuel pump Maurice, The carb bowls are bone dry. The hot lead is powered and the ground connection is good and tested out. It's solid state fuel pump so I don't know if they tick or not, but this one is not ticking. Steve Plath ----- Original Message ----- From: "Maurice Paton" maurice.paton@wam.co.nz> To: "Steve Plath" splath@comcast.net> Sent: Sunday, January 09, 2005 5:59 PM Subject: RE: [mg-tabc] Fuel pump There is no need to prime your SU fuel pump. With no fuel in it it should be ticking like crazy. Are you sure it's getting power? If it's getting power and not ticking, either the carbs are full of fuel or the points in the fuel pump are set incorrectly (not likely with a new pump, but you never know). Incidently, the power supply to the fuel pump is looped off the supply to the coil so if your fuel pump isn't working there's a good chance that your coil isn't either, unless it's just a bad connection at the fuel pump. Check the earth connection also. I have just finished fitting a new wiring loom to my TC and it sure has improved things gremlin wise. Everything works now as it should with the exception of the clock! Regards, Maurice Paton TC9357 -----Original Message----- From: Steve Plath [mailto:splath@comcast.net] Sent: Monday, 10 January 2005 2:34 p.m. To: mg tc group Subject: [mg-tabc] Fuel pump The engine is in and everything is hooked up (I think). Got my coil connected properly (I hope) so here's my problem. The entire fuel system was removed and either cleaned and reinstalled or replaced, therefore there is no fuel in the lines. I purchased a new negative ground (my car is neg ground) fuel pump from Moss. How do I prime the pump? I don't hear any ticking or other indication the pump is working. The hot and ground leads are working. Will this thing pump with no fuel in the lines? Is there something I should be doing? Steve Plath TC 5731 [Non-text portions of this message have been removed] Yahoo! Groups Links Yahoo! Groups Links