[Zmagnette] What should I check first???

Wed Nov 13 18:55:19 MST 2013

When I bought my Magnette it was in a sad state.  It had an AC fuel pump model number 
12V -EP 12. The pump is a good looking aluminum casting. I have always wanted to have it reworked.  (I don't know if it works or not .  Just assume that with the rubber parts would be shot.)
I also have a SU fuel pump gotten with some other bits and pieces marked BMC factory approved rebuilt #4080.  Anyone know where the bits to repair the AC pump could be found?  
Sent from my iPad

On Nov 13, 2013, at 7:21 PM, Fletcher Millmore <gofanu at cust.usachoice.net> wrote:

> Water in the carbs can cause this. A slug of water lies in the fuel transfer passages in the carb - when it gets sucked up to the metering needle, it blocks the jet, as water will not go through the same small hole as gas will. When the engine stops sucking so hard, the water falls down, letting gas through. If you get the demand high enough, the needle is high enough that fuel flows around the water, but it still leaves the water in the bottom.  (on HS carbs with clear transfer tubes, you can actually see this happen) Easiest thing is to dump a double dose of DriGas or fuel system cleaner in it - the cans are usually for 20 gal, so a whole can is about right. The cleaner may also remove varnish etc on float and metering needles.
> Your comment that the filter is of unknown age but is OK is wishful guesswork - change it. And when you remove it, bang it on something with the inlet end downwards - see if any water comes out. Water does not go through good filters easily, but it can under some conditions, and it only takes about a half cc to block the jet as described. 
> (banging the filter like this can get you home when water blocks the filter too. In winter, a little water will freeze over a filter very easily, making for a very cold walk home. This was standard procedure on the big truck, as diesel is often contaminated; I finally started using filters with drain plugs, which I checked regularly for water.)
> 
> FRM
> 
> On 11/13/2013 5:52 PM, John Perkins wrote:
>> Arch:
>>     I once spent a winter evening in my MGB-GT with the battery cover off of the car so I could tap the fuel pump with the lug wrench every 10 miles for 130 miles to keep enough fuel flowing         to get me home.  SU Fuel pumps don't really die, they become zombies that need to be resurrected.
>>     I had a similar problem to yours that turned out to be worn needles and seats in the carbs.  The seats were worn to a point that the needles would stick.  Sometimes the rattle from the last gasp of the engine would shake them loose, other times a quick rap from the handle end of a screwdriver would shake them loose.  Real Grose jets cured the issue.
>>     Perkins
>> 
>> On 11/13/2013 4:38 PM, Arch Boston wrote:
>>> Jeff, I have had fuel pumps die, but, reserection???  I always thought when they died they were dead. 
>>> 
>>> Sent from my iPad
>>> 
>>> On Nov 13, 2013, at 4:34 PM, JEFF ROMANS <jromans55 at msn.com> wrote:
>>> 
>>>> 
>>>> order your fuel pump now...then ready for final failure... on a 100 degree day mine layed down 1 mile from home in parking lot ,after a 100 mile trip. once the car cooled down, started right up and drove home. next time wouldnt start. FUEL PUMP TIME.
>>>>  Jeff Romans
>>>>  1958 Magnette ZB
>>>> > From: arch.boston at twc.com
>>>> > Date: Wed, 13 Nov 2013 16:20:03 -0500
>>>> > To: zmagnette at autox.team.net
>>>> > Subject: [Zmagnette] What should I check first???
>>>> > 
>>>> > My car has developed a problem..... The last few times I have driven the car it does the same thing. It will be running just fine and then it will start to act as if it is running out of gas. Stumbling and trying to die.... After I bleep the throttle a few times thinking it is truly "AAA time" the car will run just fine. There is a fuel filter between the gas tank and fuel pump. The                 filter doesn't look freshly installed, however, it is not needing replacement. The fuel pump is an electronic unit not SU. Should I suspect the fuel pump? In the past when I needed to replace a pump it was dead --- not working part of the time and fine later. What should I check first??? Arch
>>>> > 
>>>> > Sent from my iPad
>>>> > _______________________________________________
>>>> > Zmagnette mailing list
>>>> > 
>>>> > Donate: http://www.team.net/donate.html
>>>> > Archive: http://www.team.net/archive
>>>> > Forums: http://www.team.net/forums
>>>> > Unsubscribe/Manage: http://autox.team.net/mailman/options/zmagnette/jromans55@msn.com
>>>> > 
>>>> _______________________________________________
>>>> Zmagnette mailing list
>>>> 
>>>> Donate: http://www.team.net/donate.html
>>>> Archive: http://www.team.net/archive
>>>> Forums: http://www.team.net/forums
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/zmagnette/arch.boston@twc.com
>>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Zmagnette mailing list
>>> 
>>> Donate: http://www.team.net/donate.html
>>> Archive: http://www.team.net/archive
>>> Forums: http://www.team.net/forums
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/zmagnette/wrench@attglobal.net
>>> 
>> 
>> 
>> 
>> _______________________________________________
>> Zmagnette mailing list
>> 
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/archive
>> Forums: http://www.team.net/forums
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/zmagnette/gofanu@cust.usachoice.net
>> 
> 
> _______________________________________________
> Zmagnette mailing list
> 
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: http://autox.team.net/mailman/options/zmagnette/arch.boston@twc.com
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/zmagnette/attachments/20131113/7ec4704b/attachment-0001.html>