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Beachbuggy.se - svenskt Beach Buggy-community • View topic - "Något" om bränslepump

"Något" om bränslepump

Detta är kategorin för dig som satsar mer på POWER än krom!

Moderators: Magoo, kg-student, Björn J., fgronlun

"Något" om bränslepump

Postby mats » Wed 10 Aug 2011, 14:22

Har gjort ett helt ovetenskapligt experiment med en standard bränslepump.
Anledningen var krångel med en helt ny pump.(För högt tryck)
Löstes med hjälp av magoo!!!!

Men nu till ämnet.......
Ville veta hur mycket en originalare klarade av,oavsett tryck.
Kapade ner bakelitbiten under pumpen så långt att det blev maximal slaglängd
på pumpen.

Bristen på mätutrustnig gjorde att det fick bli en jämförelse mellan en elpump
med känt flödesvärde o den mekaniska lösningen.

Elpump=Facet som ger 110l/tim
Mekanisk=Bra begagnad fr nånstans 67-68.

Elpumpen kördes först och pumpade ca 0,6 l/20 s ,stämmer väl med spec.
Markerades med ett streck flaskan.

Mekaniska pumpen kördes sen med ca 3000 rpm under 20 sek,
resultatet blev nästan dubbelt mot elpumpen.

Tänker nu provköra det här lilla experimentet i 1628 motorn.
Pump-tryckregulator-IDK 48 förgasaren.

tryckreg.JPG
tryckreg.JPG (11.24 KiB) Viewed 2557 times


Har sedan tidigare dubbla bränslerör då tankar på insprutning funnits.
Ja tryckregulatorn är egentligen avsedd för konv inspr till förg.
mats
 
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Re: "Något" om bränslepump

Postby mettis » Wed 10 Aug 2011, 23:42

Intressant!
Hur mkt fick du fila ned bakeliten ? (Och hur mätte du/kom fram till detta....)

Själv har jag tidigare gått en annan väg i o m E85...
Dubbla, parallella insprutningspumpar med bränsleregulator "Lotusventil" och retur till cache-tank.
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mettis
 
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Re: "Något" om bränslepump

Postby Magoo » Thu 11 Aug 2011, 07:42

Mettis, tipset att fila och ev lägga packningar kommer från
http://www.vw-resource.com/fuel_pump.html#replace

Dock ... jag minns inte alls var jag såg det första gången (meanbugs när det fanns?) då det var någon som hade siffror på hur mycket var packning sänker trycket. Bakvänt blir ju då en nerfilning av bakeliten en packningsstorlek en ökning...
Dock funkar det ju bara till en viss gräns ;)
Image

1 buggy är en för lite ;) (har 3 st i garaget...varav 2 besiktigade)
Får man in mer än 2 fingrar mellan hjul och skärm är bilen för hög.
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Re: "Något" om bränslepump

Postby mats » Thu 11 Aug 2011, 10:31

mats
 
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Joined: Thu 08 Jan 2009, 11:31
Location: Arvika....San Bartolome GC på vintern


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