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Motortemperatuur te laag : Techniek

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Motortemperatuur te laag

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Motortemperatuur te laag

Berichtdoor Finnmark » 08 sep 2020, 18:37

Beste mensen,
Ik heb pas een nieuwe radiator. Sindsdien loopt de motortemperatuur naar maximaal net geen 60 graden en daar blijft het bij. Voorheen werd de motor altijd netjes warm tot ongeveer 85 graden. Wat zou hiervan de oorzaak kunnen zijn en wat kun je eraan doen?
Finnmark
 


Re: Motortemperatuur te laag

Berichtdoor Vlim » 08 sep 2020, 19:40

Thermostaat vervangen.
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Re: Motortemperatuur te laag

Berichtdoor Finnmark » 08 sep 2020, 21:36

Kan het dan zijn dat de thermostaat kapot is gegaan doordat er een nieuwe radiator is ingebouwd? De thermostaat was namelijk kort daarvoor nieuw gemonteerd.
Finnmark
 


Re: Motortemperatuur te laag

Berichtdoor Vlim » 08 sep 2020, 21:45

Misschien juist omdat de oude radiator niet goed meer koelde...
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Re: Motortemperatuur te laag

Berichtdoor RD500SEC » 09 sep 2020, 11:25

Een nieuwe thermostaat is geen garantie voor een goed functioneren ervan, weet ik uit ervaring.
Voordat je deze monteert, kun je het beste even controleren of hij goed werkt door hem in in een pannetje water op te hangen en het water aan de kook te brengen, openingstemperatuur controleren met een thermometer, en kijk ook of hij volledig open gaat.
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Re: Motortemperatuur te laag

Berichtdoor blauwe hap » 09 sep 2020, 11:53

Ik heb ook wel eens een nieuwe thermostaat geplaats die DOA (dead on Arrival) was, niet goed werkte dus. Voel, 5 min na het starten, aan de radiator slangen, zijn die warm en geeft je meter 60 graden aan is je thermostaat stuk (of verkeerd gemonteerd?)
Als je motor ook na een tijd flink doorrijden niet warmer wordt dan 60 graden is er iets anders aan de hand. Temperatuurmeter of temperatuursensor of de bedrading daartussen zou ik dan verdenken (aarde probleem?). Je kan met infrarood thermometer de temp van het blok meten, oliecarter is een goede plek, en de cyl kop, zijn die heter dan 60, dan zit het probleem in de meter/sensor of ontluchting van je koelsysteem. Maar dat geeft meestal een te hoge waarde op de meter.
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Re: Motortemperatuur te laag

Berichtdoor Jeroen500SEC » 11 sep 2020, 08:29

Heb je hem tijdens het vullen van het koelsysteem wel goed ontlucht.
Vullen met draaiende motor kachel en aanjager op de hoogste stand enz.
Ik vermoed dat er een luchtbel in zit.

Greetz Jeroen
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Re: Motortemperatuur te laag

Berichtdoor Bayram » 11 sep 2020, 10:08

Die van mij wordt ook sinds vervangen geen 87 graden meer, ik ga ook maar weer eens een nieuwe bestellen.
Die van mij wordt hooguit 80 graden
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Re: Motortemperatuur te laag

Berichtdoor Vlim » 11 sep 2020, 15:28

En de dop van het expansievat eraf tijdens het ontluchten achteraf.
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Re: Motortemperatuur te laag

Berichtdoor Sieggy » 12 sep 2020, 13:00

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