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The 100-Six Forum

Removing the fuel pump from a 100/6

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jmmarch Avatar
jmmarch Silver Member Mike March
Winchester, VA, USA   USA
1957 Austin-Healey 100-Six
1976 MG Midget 1500 ~ For Sale ! ~
I need to remove the fuel pump. I can access it by removing the left jump seat.
My question: How is it attached to the frame? Do I need to get under the car?
Thanks in advance.

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Fuel Pump.JPG

johnbn6 Avatar
johnbn6 john nieuwenhuizen
kerkrade, limburg, Netherlands   NLD
You might want to drain the fuel tank before removing the pump . . . . (There's a drainplug under the tank). The pump is attached by 2 screws accessible from the inside. In your picture, it lookes like your car doesn't have rear shock absorbers . . . . . ?

jmmarch Avatar
jmmarch Silver Member Mike March
Winchester, VA, USA   USA
1957 Austin-Healey 100-Six
1976 MG Midget 1500 ~ For Sale ! ~
Shocks are there...just out of the frame.

The pump is attached by 2 screws accessible from the inside...Do I need to peel back the carpet to get to the screws?

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bluecatmodels Avatar
bluecatmodels Silver Member Dave W
Three Rivers, CA, USA   USA
Hi Mike,
If your pump is attached like the one on my BT7, it has the nuts spot welded to the metal panel in front of the back seats. You should be able to take it out without removing the carpet.
Dave

rjc157 Avatar
rjc157 ralph c
pearl river, NY, USA   USA
First shut the cut off switch to avoid any possible spark there is going to be some gas leaking out ,is the pump not working

jmmarch Avatar
jmmarch Silver Member Mike March
Winchester, VA, USA   USA
1957 Austin-Healey 100-Six
1976 MG Midget 1500 ~ For Sale ! ~
Pump has been bypassed. New one installed in the boot.
Also, I am replacing the fuel tank.

rjc157 Avatar
rjc157 ralph c
pearl river, NY, USA   USA
I'm alittle confused is the new pump an aftermarket one also why change the tank is it leaking I think you can have it cleaned out if you think there's a lot of crud in there .Why spend all that money on a new one

jmmarch Avatar
jmmarch Silver Member Mike March
Winchester, VA, USA   USA
1957 Austin-Healey 100-Six
1976 MG Midget 1500 ~ For Sale ! ~
Pump is aftermarket. Tank is rotten and leaking. I have the new tank and a new sending unit is on the way.
The PO left the original pump installed. I want to remove it and see if I can get it working before I replace it with the proper one.


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IMG_3249.JPG

rjc157 Avatar
rjc157 ralph c
pearl river, NY, USA   USA
Go to John Simms site there are a number of articles that can take you through it

andrewss Andrew O
Brussels, Lasne, Belgium   BEL
Mike,

You don't need to drain the fuel tank as the SU pump is higher than the fuel tank so no worries about fuel leaks. I suggest that you disconnect the battery completely on the positive side to avoid any unecessary risk.

Disconnect the inlet and outlet pipes from the pump and push paper towel into the pipes to stop and residue fuel leaking. Use a tie wrap or a piece of string and secure the pump to avoid damaging it when you take the two bolts out holding it to the kickboard.

About half way down the kickboard (on the insde of the car) you will feel (through the carpet) the two bolts that retain the pump on the other side. Take a stanley knife and cut a cross shape over the head of the two bolts to gain access (this saves you having to re glue the whole carpet).

Here is the link to the SU site if you need spares for the pump. Check whether the pump/car is positive or negative earth before you buy spares !!!!

http://sucarb.co.uk/su-fuel-pumps-spares/single-hp-pumps-kits/fuel-pump-electronic-positive.html

Here is a link to a Facebook page that sells spares second hand... There is a reconditioned SU pump positive ground for 70 Euros..

www.facebook.com/pages/Austin-Healey-Parts/1449156968557245

Good luck

petnatcar Avatar
petnatcar Silver Member Peter Carbone
Watertown, NY, USA   USA
Mike ,
You don't need to drain the tank or crawl under the car but
removing the left rear wheel will give you additional access which is helpful.

I had to change the pump on my BT7.
It's mounted on a bracket that's attached to the rear bulkhead with four 1/4" x 3/4" bolts.
The pump is bolted to the bracket with two 5/16" bolts.

I upgraded the lines because the hard line got flattened some how.
The Russell fittings are more functional, fun to work with and they look nice.

Yours looks like it's bolted to the bulkhead from inside the car.
You may have to peel back the carpet or cut it where the bolts are to loosen them.
Feel around in there for the heads of the bolts.

Good luck,
Peter


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