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hughesy

Land Rover Lift Pump

I put some cheap veg oil in the disco the other day as I've done many times before, but not for a long time. As I suspected might happen it picked up all the gunge from the bottom of the fuel tank and gummed up the fuel filter. Not a major problem, went and got another filter, but when I came to change it I found that the previous owner had bypassed the lift pump. He'd simply taken the pipes off and connected them together with a short length of rubber hose. Now I didn't think the thing would run without the lift pump but it's been doing so for the last 18 months with no problems. Anyway there's no way to bleed the air out of the system without it so I reconnected it only to find, surprise surprise, that it don't work. So, new lift pump ordered, only about 14 quid, but between that and the filter any saving I'd made running the veg oil is more than cancelled.
Hawkeye

I,ve got an IH 574 with no lift pump and I pressurise the tank with a compressor till it comes out of the filter  bleed screw usually does the trick  

The none of the IH 74 and 84 series tractors ever had a fuel lift pump and relied upon gravity feed from the saddle shaped fuel tank at the rear of the tractor.................as I recall a minimum of 7 or 8 gallons of fuel was required in the tank to get the fuel to and bleed the primary fuel filter, to get the fuel through the injection pump and up to the injectors was by cranking the engine over on the starter.

The 12 volt electric fuel pump for the 85XL series is a very handy piece of kit for fitting to other tractors, road vehicles and  stationary diesel engines.  
hughesy

That's interesting. My Nuffield tractor fuel is gravity fed but still has a lift pump. I can only assume that it's there purely for bleeding the system. Annoyingly I've had the disco running today but it couldn't manage more than a rough tickover and died after a few minutes. Never mind the new lift pump should be here tomorrow.
sod

Disco

Our inter had a lift pump maybe they are needed way down here  
hughesy

[quote="sod:303329"]Disco quote]
Discovery, Land Rover.
sod

Thanks  
hughesy

All fixed now. Put the new pump on, bled it up, turned the key and good as new.

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