XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Cooling fan diode pack

 
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Old 10-24-2018, 02:28 AM
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Default Cooling fan diode pack

Hi,

Yesterday I took a multimeter to test the diodes of the cooling fan diode pack (1982 XJS V12 HE),
2 diodes had a value of about 524 both were 1N4006 diodes the other one was a different type and looked a bit of it was blown (it is somewhat dense)
How ever it tested to be good with a value of around 425.
So the question is is 425 enough? or is it bad?

And if I want to replace this one, will the 1N4006 do the trick?
 
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Old 10-24-2018, 02:55 PM
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I assume those readings were with meter on diode mode, or was it on ohms. This makes a difference with the reading value.

A diode should read in one direction only, swap the meter leads and if it read in the other direction either the diode is bad or there is another component across it.
 
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Old 10-24-2018, 04:38 PM
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Originally Posted by warrjon View Post
I assume those readings were with meter on diode mode, or was it on ohms. This makes a difference with the reading value.

A diode should read in one direction only, swap the meter leads and if it read in the other direction either the diode is bad or there is another component across it.
Yes the meter was on diode mode, and it did read in one direction only but since the values were so different between the first 2 1N4006 and the last one I wandered if this is normal

 
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Old 10-24-2018, 10:10 PM
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That's what I suspected. I'd call the diodes good.

What is the problem.
 
 
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