Hi Dave, I think that W connection/wire is used in Diesel applications where there is no coil to take the pulse for an electronic Rev counter, the pulley size would be matched to the rev counter and motor and use the sine wave to calculate revs, for your application remove the wire 👍
Great job and excellent explanation, everything you said was correct, you also avoided the trap of too complex an explanation that would confuse those who do not have a handle on electrical principles. Well done again!
Interesting stuff Dave I’ve actually learned a lot from your channel lots of interesting things going on I must admit I’ve never really thought about how they work before now I know 👍
Hi Dave very much enjoying all the videos!!!, as stated W wire is indeed waveform wire for the Tacho.... I was told many years ago when I asked at my starter motor and alternator repairers that the old Lucas ACR alternator and the like had blocking diodes within them to deal with overcharging.. the modern type this is dealt with by the ECU but guess maybe some are different....depends what car it came from???? keep up the great content. regards Chris
Could be miles off here but I wonder if the 'W' is the wire for the rev counter feed. Sounds strange but alternator speed must relate to engine speed. I remember many years ago fitting an RS type dash to my brothers MK1 and we had to run a wire through the back of a fitting on the rev counter but I don't recall where it came from. It could well have come from the coil or distributor though. It's amazing how much you forget as time moves on and you don't use the knowledge and skills.
I think when you were spinning the alternator up, you were spinning it the wrong way because the fan blades of the alternator, supposed to suck carry and push push air through to keep it cool I’m not 100% sure, but I think I’m correct I may be wrong Please check
It should have a voltage regulator integrated to your alternator to stop it over charging Dave, you don’t need to connect terminal W mate far has I know. As per other comments
Nice one
Hi Dave, I think that W connection/wire is used in Diesel applications where there is no coil to take the pulse for an electronic Rev counter, the pulley size would be matched to the rev counter and motor and use the sine wave to calculate revs, for your application remove the wire 👍
Yes, that makes sense, thank you. 😊
Well done Dave. Good explanations for those who don't know the principles. Comments are correct re. the "W" terminal.
Thanks Bob, comments have been very helpful 👍
Very interesting and informative as usual. 👍
Great job and excellent explanation, everything you said was correct, you also avoided the trap of too complex an explanation that would confuse those who do not have a handle on electrical principles. Well done again!
Thank you 😊
great video, really informative 👍👍👍👍
Great video Dave.
Great video Dave. Induction doesn't even need the wire to be coiled. A conductor, a magnet and relative motion will induce a current 👍🏼👍🏼
Thanks for the info!
Interesting stuff Dave I’ve actually learned a lot from your channel lots of interesting things going on
I must admit I’ve never really thought about how they work before now I know 👍
Cool, thanks 😊
I think a battery sensing wire seems to be used on later ecu cars,to protect it maybe?
The W terminal also connects to a manifold heater on petrols if fitted
Ah, OK, that's interesting
Hi Dave very much enjoying all the videos!!!, as stated W wire is indeed waveform wire for the Tacho.... I was told many years ago when I asked at my starter motor and alternator repairers that the old Lucas ACR alternator and the like had blocking diodes within them to deal with overcharging.. the modern type this is dealt with by the ECU but guess maybe some are different....depends what car it came from???? keep up the great content. regards Chris
Thanks Chris 👍
it is for tackimetre
Possibly
thats a self regulating alternator with the rectification pack built in , so no need to have an external unit. The W wire is a rev counter feed.
Could be miles off here but I wonder if the 'W' is the wire for the rev counter feed. Sounds strange but alternator speed must relate to engine speed. I remember many years ago fitting an RS type dash to my brothers MK1 and we had to run a wire through the back of a fitting on the rev counter but I don't recall where it came from. It could well have come from the coil or distributor though. It's amazing how much you forget as time moves on and you don't use the knowledge and skills.
W=Tacho
It’s a phase tap wire for Rev counters on diesels . It puts out about 7.0 volts .. don’t need it so forget about it .
Thank you 😊
I think when you were spinning the alternator up, you were spinning it the wrong way because the fan blades of the alternator, supposed to suck carry and push push air through to keep it cool I’m not 100% sure, but I think I’m correct I may be wrong Please check
Must be the right way. Most engines run clockwise. Maybe it looks weird due to screen refresh rate?
It should have a voltage regulator integrated to your alternator to stop it over charging Dave, you don’t need to connect terminal W mate far has I know. As per other comments
Brilliant thank you 😊
Come on dave, plz stop the short video's plz!, if u need more beer boxes for templates I'll send u some lol 😊😊😊
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