RE: [doc] Locked Fuel Pump (again!)

["Richard" <dickyh11@xxxxxxxxxxx>]

Sounds like you might have a floating blockage in the return line.

I had that problem for a while, copious quantities of injector cleaner
over a few tank fulls seems to have cured it...

Rich Hutchinson
DOC 365 VIN 1274

> -----Original Message-----
> From: doc-uk@xxxxxxxxxxxxxxx [mailto:doc-uk@xxxxxxxxxxxxxxx] On Behalf
Of
> Peter Filsell
> Sent: 20 July 2005 21:16
> To: doc-uk@xxxxxxxxxxxxxxx
> Subject: [doc] Locked Fuel Pump (again!)
> 
> Hi guys,
> 
> 
> Hope someone can assist!
> 
> Any ideas what would lock the fuel pump apart from dirt in the tank?
Could
> excess pressure cause a problem? Or maybe something engine side rather
> than at the tank?
> 
> I have had a problem with 1772 chewing up pumps nearly just as quick
as
> she drinks petrol!  I thought I cured the problem before Christmas as
I
> put the mysterious locking down to the pump access panel pinching the
> supply hoses. I have travelled some 200 miles without a problem.
However
> on Monday (which was my 25th Birthday too!)  1772 decided to play the
old
> cutting out game again through Norwich and yep you guessed it the fuel
> pump was locked again.
> 
> I know it must sound like crap in the tank but she has had a new tank,
> lines flushed out with acetone, new pick up hose and filter in the
tank
> too!  There is power getting to the pump and the inertia switch has
not
> tripped either.
> 
> The reason why I wonder if pressure could be a problem is because the
> supply hose from the pump to the fuel line split the other day but I
just
> put this down to an old pipe rather than any specific fault.  After
1772
> did cut out I noticed alot of pressure in the supply lines from the
pump.
> Especially the return line which was solid although when I removed it
from
> the pump end the line was dry.
> 
> I intend to check the fuel line at various stages (ie filter, engine
> entry, frequency valve, accumulator etc) just to double check for any
> foreign material but any other suggestions/ideas of why the pump would
> lock would lock would be gratefully received.
> 
> 
> BTW after spending several hours on the roadside, the helpful recovery
> chap used to work at Lotus and he assures me that there are still 2
D's at
> the factory in Hethel!  Didn't quiz him too much as I didn't feel that
> reassured by him, although a decent chap but I guess you never know!
> 
> Regards
> 
> 
> Peter
> DOC328
> Vin 1772
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
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