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Transistor onsteking : Techniek

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Het is nu 25 nov 2024, 05:52

Transistor onsteking

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Transistor onsteking

Berichtdoor Benzbroeder » 17 jun 2011, 15:19

Hallo allemaal,

De ambulance ligt alweer een tijdje uit de roulatie, dit heeft te maken met een probleem aan de ontsteking.
Het probleem is als volgt:
De motor liep heel erg bonkig en de topsnelheid was niet veel hoger dan 60km/h (dat is zelfs voor de ambulance laag).
Nu kwamen we er vanmiddag achter dat er op dit blok een transistor ontsteking zit (dus zonder contactpuntjes).
Daarbij kan het dus niet aan de contactpuntjes liggen, toch?!
Vanavond gaan we de bobine doormeten en de afstelling op orde brengen.

Maar nu is onze vraag hoe we kunnen bepalen of het onderdeel op de foto (impulsvoeler?) nog goed is of niet?
Heeft de spoel in de stator een bepaalde uitgangswaarde o.i.d.?


Hopelijk kan iemand ons hier mee helpen!

Groeten, Wout
Benzbroeder
 


Re: Transistor onsteking

Berichtdoor Benzbroeder » 17 jun 2011, 16:53

Op de foto staan ook nog twee veertjes. De onderste is een beetje vervormd bij het demonteren, kan het kwaad als we t zo weer monteren?
En heeft iemand nog tips bij het monteren. Moeten we het spietje tussen de stator en de rotor lostikken? Of is er een andere handigheid?

Groeten, Wout
Benzbroeder
 


Re: Transistor onsteking

Berichtdoor Benzbroeder » 18 jun 2011, 14:20

We hebben gisteren een paar onderdelen doorgemeten, waaronder de voorschakelweerstanden.
Volgens het werkplaatshandboek zouden deze een weerstand van 0.4 en 0.6 ohm moeten hebben.
Maar met het meten komen we daar niet op uit, de waarde schommelde tussen de 1 en 1.5 ohm en de weerstand van de ander was nog iets hoger.
Is dit wellicht een probleem? En als we het contact aanzetten worden deze weerstanden ook heet. Hoort dit?

Groeten, Wout
Benzbroeder
 


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