in tank fuel pump Question

[whitesupra]

if you have an intank fuel pump that burnt out, could you run an outside type pump and make the system work again or would the intank burnt out pump lower pressure or be a blockage point???? thanks.

[celica fanatic]

You'd be much better off to just change the pump inside of the tank. That, or get a '82-'83 tank, and run the external pump. As for running another pump after the original, look at it this way. You're going to be putting a lot of stress on the secondary pump. It's having to pull fuel through both the old pumps filter (Which probably needs changed anyway) and the original pump itself. Not to mention the time spent rigging. Not telling you what to do, just trying to save you time and trouble.

[Linga]

I went to Pick-N-Pull pulled a in tank pump out of an mk3 and put it in my mk2. Has worked great since. Cost about ten dollars. Cheap way to fix it if you are looking to do upgrades in the near future. I didn't want to buy a new fuel pump before I put the upgrade parts on.

[Supra Cameron]

yea i agree if it was me i would just replace the intank pump. had to replace one in mine.

[whitesupra]

I should have given all info....this is on a jag vanden V8 with a tank that requires dropping rear end and associated braces....big, big, big job. so I was just wondering if it would work until permanent repair could be made.

[supkar]

I should have given all info....this is on a jag vanden V8 with a tank that requires dropping rear end and associated braces....big, big, big job. so I was just wondering if it would work until permanent repair could be made.

I don't see how it would work. I guess you would install an external pump onto the fuel line going to the engine, an try to pull fuel through the same line the existing pump is on?
You would obviously strain the pump outside which is trying to draw through the internal pump.
But, you could try to open the fuel line and do an experiment. Try pull some fuel into a bottle with an external pump and temporary electrical. Luck with that.

[Linga]

I would think it is worth a try.

[pdupler]

I highly doubt it would work. The hose on the suction side of an external pump is like 1/2" diameter in order to minimize fluid friction. The pipe coming off the pressure side of the in-tank pump is only 5/16". It'd be like trying to consume a 7-Eleven Slurpee through one of those juice box straws. But seriously, having done an external pump conversion and then years later converting back to the far, far superior Toyota in-tank pump setup, I can tell you that its actually a lot less work to drop the tank than it is to fabricate mounting bracketry, banjo hose fittings and all necessary to the conversion and in the end, there's absolutely no benefit whatsoever, except for the ease of replacing it the next time. Get a brand new Toyota brand in-tank pump and the next time won't be for another 150K miles or more.

[whitesupra]

what year mk3 and did it just bolt right up and what about sender and gas gauge, did it work right??? thanks.

[4SFED]

Putting a Mk3 pump in a mk2 is quite common. Sender and gauge have nothing to do with it.