Dynamo
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- Minor Legend
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Dynamo
Yes it is, will try the adjusting route will I need a Meter to adjust or just go by trial and error
Ian
Ian
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- Minor Legend
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- Minor Addict
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The workshop manual has instructions covering the calibration and servicing of the regulator, if you don't have one it might be worth a pm to BMCecosse as I believe he has the relevant pages from the manual somewhere
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- Minor Fan
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- Minor Addict
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not really so long as it pops up when the engine stops it will be fine, best leave alone if its working OK
I intend to live forever.....so far so good
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- Minor Legend
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Dynamo
Already got manual on computer from bmc link thanks, would like to return to screw terminal reg at some stage so will prob look for one whilst also looking for spare engine as would like to recon my engine but not sure about my block as studs are suspect in block
Ian
Ian
Ssshhhh! Don't say that - 'they' get upset - best to scrub that bit out !!
If the idle speed is low - then yes the contact should drop out to prevent reverse current. Best way to tell of course is with a good old ammeter - if it's showing a big discharge at idle - then it needs adjusting to make it drop out.
If the idle speed is low - then yes the contact should drop out to prevent reverse current. Best way to tell of course is with a good old ammeter - if it's showing a big discharge at idle - then it needs adjusting to make it drop out.
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- Minor Friendly
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Well everything is Hunky Dory with the Dynamo,and after replacing the regulator its working fine.
Thanks for all the help from everyone,car is now ready for the MOT after 20 years of slumber.After replacing the seized engine and all the braking system.
Wish me luck hope everythings OK!
Thanks again
Craig
Thanks for all the help from everyone,car is now ready for the MOT after 20 years of slumber.After replacing the seized engine and all the braking system.
Wish me luck hope everythings OK!
Thanks again
Craig
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- Minor Addict
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Good Luck
I intend to live forever.....so far so good
The other place to be :- http://mog.myfreeforum.org/index.php
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- Minor Fan
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The problem is not solved
I took the car to the Goodwood breakfast club and afterwards for a quick drive. The charging red light kept coming on just, ie a bit faint.
The battery voltage may be a little low from not using the car for 4 weeks but it was fine starting. Could this be an influence?
To save you reading all the above posts, I have a new regulator, dynamo bushes and bulb in the red light. Wiring checked, and checked again.
Any adjustment needed within the regulator?
I took the car to the Goodwood breakfast club and afterwards for a quick drive. The charging red light kept coming on just, ie a bit faint.
The battery voltage may be a little low from not using the car for 4 weeks but it was fine starting. Could this be an influence?
To save you reading all the above posts, I have a new regulator, dynamo bushes and bulb in the red light. Wiring checked, and checked again.
Any adjustment needed within the regulator?
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- Minor Fan
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At fast idle it should be close to 14volts. The light will not come on if the system is charging, regardless of battery voltage, as it is the charge from the dynamo that puts the light out, not the battery voltage...
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Well - it's the voltage from the dynamo back feeding to the ignition circuit that puts the light off! So - it needs to be equal to the battery volts for no glow - but IF somehow the dynamo is generating - but the connection back to the battery has failed - then the light can glow due to higher dynamo volts pushing current through the light - into the Ign circuit!
Yes, it would have to be a failed connection back to the battery in this case. Otherwise, if connected correctly, the battery voltage would equal the charge from the dynamo and the light would be out. May be it is just that simple - a dirty connection?
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- Minor Fan
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Re: Dynamo
Sorry for taking so long to get back with the measured voltages, I've not used the car over the winter but she did start first time today and ran beautifuly. Except my charging light is still on - just.
Battery voltage =
Measure with engine off but still connected - 12.4v
Measure with engine at idle - 12.2v
Just to recap - I have a new regulator and brushes in the dynamo. Regulator contact bit inside does not open when the engine is idling.
Any ideas how far I could drive with the charge light just on?
Battery voltage =
Measure with engine off but still connected - 12.4v
Measure with engine at idle - 12.2v
Just to recap - I have a new regulator and brushes in the dynamo. Regulator contact bit inside does not open when the engine is idling.
Any ideas how far I could drive with the charge light just on?
Re: Dynamo
Does the regulator open when you fast idle?
What is the voltage at fast idle? At normal tickover it will always be close to battery voltage and the light will glow dim (unless you up the idle speed a bit).
When you replaced the brushes in the dynamo did you clean the commutator too?
What is the voltage at fast idle? At normal tickover it will always be close to battery voltage and the light will glow dim (unless you up the idle speed a bit).
When you replaced the brushes in the dynamo did you clean the commutator too?
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