Diesel Lift Pump

[a64pilot]

If I can find an SU pump on Eaby, I'll go that route as it easiest to replace with like item, I looked earlier, but couldn't find the same pump

[Pete7]

Originally Posted by cal40john

I think someone has posted on CF in the past that the bulb hardened after a time.

Peugeot have fitted squeeze primer bulbs to their diesel cars for years.

Pete

[model 10]

Originally Posted by Pete7

Peugeot have fitted squeeze primer bulbs to their diesel cars for years.

Pete

Peugeot? This could be a warning. I once sailed on a beautiful Lafitte 44. It had a Peugeot. What a waste.

[sparrowhawk1]

Squeeze bulb works great for changing filters. I haven't had to bleed my system.I'm sure it would work great for that too. much more controll than an electric pump

[SimonV]

I use a squeeze bulb for filter changes an engine bleeds. But i only get 3 years out of the bulb as they get soft and the last one got so soft it would occasionally collapse shutting of the fuel.

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[Tayana42]

Squeeze bulb works fine on my Yanmar 4 JHE. Don't know how old it is. It was there when I bought the boat in 2000. Still works.


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[Dulcesuenos]

Originally Posted by Canibul

Do you wire that to the starter/ignition switch so the pump turns on with the key? does it run the entire time you have the diesel running?

Canibul ours Is wiredto the ignition it runs all the time when there is demand. It will stop once a certain pressure is reached but the diesels return unused fuel to the tank anywys so its almost polishing fuel as it cycles/ sort of..

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[Cheechako]

Originally Posted by Dulcesuenos

Canibul ours Is wiredto the ignition it runs all the time when there is demand. It will stop once a certain pressure is reached but the diesels return unused fuel to the tank anywys so its almost polishing fuel as it cycles/ sort of..

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That's how I did mine. However, I've often wondered if it could be a problem for some things: what does the pressure do to the lift pump diaphragm? It's just soft and flexible... is ballooned up from the pressure? What other things might be an issue? I guess it's all ok as many people have done it...

[Jubilee39]

A double throw center off switch on-off-on for the pump will allow to either run the pump or not. In one position the pump is run with the engine in other pn posiition it runs from the battery to fill filters, prime the engine. Thr pump is connecter to center pole of he switch

[gjordan]

As a side note to this thread, I cruisded for a couple of years with a converted autodiesel (Mercedes 190D), and found it to be very reliable. It had a hand pump on the injector pump that if you got air, or ran the engine out of fuel, you could just give the hand pump a dozen strokes, and it would start again. No bleeding of injectors, or the usual mess of leaking diesel. My Perkins would die deader than a stone with the slightest of air in the system, and need a complete bleeding. At one time I also owned a Volkswagon diesel that I never had to bleed. If you ran it empty, you put in fuel and cranked it until it started. It was very reliable. I have no idea why some injections systems are self bleeding, and some are not, but it would seem logical for all of them to be. ___I am sure someone will prove me wrong!!! _____Grant.