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MG MG Y Type - SU Fuel pump

hi Y'ers
there is an SU fuel pump advertised on ebay (link attached)for the Y type. My question is, is it compatible as the connections differ.

http://www.ebay.com.au/itm/131031615438?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_1828wt_918
andrew sorouni

the bottom <petrol part> looks totally different to the one on my car
Graham Sharpe

That is a modern Midget pump - I have one on my 1969 Mk3 Midget. It is a pusher pump too - located near the tank and pushes fuel to the carb.

A Y-Type pump is a sucker pump - it's located near the carb and sucks the fuel from the tank and delivers it to the carb.

The item description is incorrect, as it could not be mounted on the original bracket fitted to a Y-Type (or T-Type). It is designed to be mounted in a "barrel clamp" and not bolted to the body.

If you look on the Fabre/SU Midel website, they have photos of each model SU Pump and the car they suit.
A L SLATTERY

Reading the notes below the item, the seller is suggesting this pump will solve all your vapour lock problems by installing it down near the tank. He may be right, but even my 1969 Midget has vapour lock problems and it has one of these pumps as standard equipment.
A L SLATTERY

Very much doubt pushing the fuel as opposed to pulling (or sucking) it will make any appreciable difference to vapor lock as it still has to cross over the hot exhaust manifold to get into the combustion chambers however it gets there ... and that is generally where most of the evaporation occurs (hence the use of heat shields and phlonic blocks (see Hints and Tips page I think).

Paul
Paul Barrow

I concur with you Paul.

I fight the vapour lock by simply following one rule - if you are stopping for less than 10 minutes (like re-fueling) - open the carb side of the bonnet & let the heat out.

If the stop is longer than 30mins, the heat soak will dissipate and vapour lock will not occur.

Remember, modern fuel will vapourise at 80 degrees C. Under bonnet temperatures in a Y-Type are well above this, so maintaining the fuel and air flow under the bonnet is the only way to avoid the fuel vapourising before it gets to the pump or carb.

Time to get back in the garage and re-assemble the YA engine - see the "Road Trip" thread !.
A L SLATTERY

If you dont have the luxury of living in the beautiful climate that is Australia you will also find that on the 10 minute stop, or in conjested UK/city driving, that a good heat shield (see Hints and Tips <Heat Shield - fitting to a YT>) will fix these issues for you. If you have a Y or YB, the MG Car Club produce an excellent Data sheet on how to make and fit one to the sedan/saloon single carburettor set up.
Paul Barrow

This thread was discussed between 19/11/2013 and 20/11/2013

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