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Fuel pump


Guest ntc

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  • 2 weeks later...

Not sure why "you gotta laugh" Tony ?

 

They are indeed rare, in so much as quite a few years back Bosch replaced an extensive range of specific application OE pumps with a handful of 'one size fits all' aftermarket budget substitutes.

 

The net result is that whilst the replacements are adequate for less demanding applications, once they are asked to supply a relatively high powered engine they struggle, and service life tends to be a fraction of the original fitment.

 

Anyone with a high end K-Jetronic or L-Jetronic equipped car, such as my wife's Quattros, will pay serious money for an OE pump. £220 is not expensive, you only have to think of what those pumps cost 20 or 30 years ago . . . .

 

Cheers,

 

Alec

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I thought it funny (and still do), that I ended up with one of these apparently rare pumps that came in a box of junk with my car and I was going to give it away...and will probably still do so anyway...it's only an electric pump... :P:lol::lol:

 

Tony.

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They were common enough once upon a time Tony, and like so many things aren't any more. :rolleyes:

 

Yes it's only an electric pump, but in an electro-mechanical fuel injection system a seemingly small adjustment to the pump performance parameters can result in a significant difference in engine performance. Hence why Bosch once made such a alrge range of pumps. EFI can adjust for this electronically, so a smaller range of pumps is now produced. These are not always ideal, as opposed to useable, for an old-fashioned injection system.

 

The bloke who bought this pump wasn't daft, if he bought it for a PI car.

 

Cheers,

 

Alec

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The best pump for a Tr pi system full stop, moon and back no problem and will start on all six on the button,I have yet to see the imho rubbish offerings out there now do that. The bit that makes me laugh they sell you a pump with a (filter) nowhere as good as original then flog you parts to shut the thing up :lol::lol::ph34r:

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Ok,

 

So this NOS pump hasnt been used, the buyer paid 220 squid, been out of production for ? years, so its been sat in a box for ? years

 

I am wondering what the state of the rubber components are going to be like, surely they will be cazed or cracked, as would a tyre.

 

Or doesnt the pump contain any rubber components and therefore would be ok. I do have one of these pumps which runs, it was removed

to have EFI fitted (not my car) and wondered how serviceable it may be?

 

 

Anyone had one stripped apart?

 

Cheers

Guy

 

 

 

 

 

 

 

 

 

 

 

/

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Hi Guy,

 

perhaps surprisingly, the now superceded range of Bosch pumps did not seem to suffer unduly from lack of use - whether long term on the shelf nos or items fitted on a laid up car for years. They were well engineered components, maybe the fact that they were also utilised historically for miltary applications had something to do with that ?

 

They tended to just die eventually, comprehensively worn out after loadsa miles, one day working and the next seized dead. The one thing they really don't like is being run without fuel, never never never test them without being hooked up to a fuel supply, they'll cook in a second or two. If you're daft enough to run out of fuel in a car equipped with Bosch pump, order a new pump, you'll need it soon enough.

 

Afterthought, they don't like being short changed on current either, a good healthy feed is essential.

 

Cheers,

 

Alec

Edited by Alec Pringle
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No Idea Guy as I have never had one fail,wish I had bought the thing now just in case

 

 

Neil,

 

Going to bung it in my boot as a spare in case its needed at any point on my travels.

Most of my spares get used by others these days. No names so dont ask. :)

 

If it contains rubber i can see that it would last if in use, but my thoughts are if its not been in use

like the NOS one and my one, surely the rubber woul go hard.... i dont know.

 

Cheers

GUY

 

 

edit.. Thanks for that info Alec we posted about the same time, i ran it with fuel set up.

Would be ncie to know how it works, where its a rubber diphragm, or impellor of some sort like

an aquatic pump.

Edited by Jersey Royal
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