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brandstof pomp 280E probleem : Techniek

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brandstof pomp 280E probleem

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brandstof pomp 280E probleem

Berichtdoor Marnickbijlsma » 18 aug 2020, 21:58

Hallo leden,

Ik heb een Mercedes Benz 280E '76' en die rijdt niet op benzine, wel op LPG. als ik op benzine start en ik meet de spanning op de pomp dan meet ik niks. Als ik een externe voeding op de pomp zet dan draait deze wel even maar niet lang (slaat automatisch af?). Verder kan ik het brandstof relais ook niet vinden normaal moet deze op de wielkast aan de bestuurderskant gemonteerd zijn geloof ik? klopt het overigens dat de stuwschijf geen tegendruk geeft als je die naar beneden duwt? en zou een stuwschijf het probleem daarvan kunnen zijn dat de brandstofpomp niet draait? Ik hoor graag tips en tricks van jullie!

Gr Marnick
Marnickbijlsma
Fresh Boarder
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Berichten: 5
Geregistreerd: 02 jul 2020, 19:06
Roepnaam:
Type wagen: 280E
Bouwjaar: 1976
Automaat: Ja
LPG: Ja


Re: brandstof pomp 280E probleem

Berichtdoor iwemalpg » 26 aug 2020, 14:40

De tegendruk op de stuwschijf komt van de brandstof druk, geleverd door de pomp.
Geen brandstofdruk is ook geen tegendruk op de schijf.
Do the Classic Car Euro Challenge (CCEC) to test your engine.
iwemalpg
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Berichten: 14
Geregistreerd: 01 aug 2020, 11:19
Roepnaam:
Type wagen: N.n.b.
Bouwjaar: N.n.b.
Automaat: Ja
LPG: Nee


Re: brandstof pomp 280E probleem

Berichtdoor Wietse » 28 aug 2020, 18:02

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Wietse
Platinum Boarder
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Berichten: 1104
Geregistreerd: 13 jun 2011, 13:58
Woonplaats: Dordrecht
Roepnaam:
Type wagen: 300TDT
Bouwjaar: 1981
Automaat: Ja
LPG: Nee
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Re: brandstof pomp 280E probleem

Berichtdoor RD500sec » 04 sep 2020, 11:15

Als je de pomp direkt op 12 volt aansluit, dus op een externe accu, of met draden aan de autoaccu, (gebruik wel een zekering) dan blijft de pomp draaien, zo niet, is de pomp defect. Er wordt druk opgebouwd in het brandstofsysteem als de pomp draait, de brandstof die niet verbrand wordt, komt via de retour terug in de tank.

Als de pomp via het brandstofrelais gestuurd wordt, wordt hij via een tijd gestuurde schakeling in het relais uitgeschakeld als de motor niet gestart wordt, of uitvalt. Het is geen druk gestuurde schakeling.
Oudere systemen kunnen ook een schakelaar hebben die door de stuwklep wordt bedient en de pomp uitschakelt als de motor uitvalt of niet wordt gestart met contact aan. Deze schakelaar wordt overbrugt bij het starten.
Met vriendelijke groet, Richard
RD500sec
Technisch adviseur
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Berichten: 1315
Geregistreerd: 03 okt 2014, 17:25
Woonplaats: gemeente Schagen
Roepnaam:
Type wagen: 230TE
Bouwjaar: 1982
Automaat: Nee
LPG: Nee


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