B2150 Alternator Upgrade
- Thread starter moejr
- Start date
Depends how your fabricating and electrical skills are. Not an easy job.
First, doubtful you have an alternator now but instead a dynamo.
Canadian destined B2150's had an optional real alternator installed according to the WSM.
This illustration shows how the alternator was mounted high above the engine and pulley sizes needed to be matched.
B7100HST tractor had more detail in their WSM on installing a real alternator.
You can download the B7100 WSM from Kubotabooks.com.
Look on page N8-1 or 341 of 355.
These tractors are old and used mechanical, external voltage regulators.
Modern alternators with internal voltage regulators are more compact and thus easier to package.
Do not go and install a large alternator as the V belt coming from the engine crank pulley has limitations in how much power it can transmit.
Depending upon your skills and expectations, you could install a one wire alternator of around 35 amp output. With this setup you loose a warning light but can easily install a volt meter to see what is happening.
Here is a typical 35 amp one wire for around $80
one wire
Dave
First, doubtful you have an alternator now but instead a dynamo.
Canadian destined B2150's had an optional real alternator installed according to the WSM.
This illustration shows how the alternator was mounted high above the engine and pulley sizes needed to be matched.
B7100HST tractor had more detail in their WSM on installing a real alternator.
You can download the B7100 WSM from Kubotabooks.com.
Look on page N8-1 or 341 of 355.
These tractors are old and used mechanical, external voltage regulators.
Modern alternators with internal voltage regulators are more compact and thus easier to package.
Do not go and install a large alternator as the V belt coming from the engine crank pulley has limitations in how much power it can transmit.
Depending upon your skills and expectations, you could install a one wire alternator of around 35 amp output. With this setup you loose a warning light but can easily install a volt meter to see what is happening.
Here is a typical 35 amp one wire for around $80
one wire
Dave
Thanks Dave for the info, will check out the Kubota B7100 WSM and see what's involved.... my B2150 has a heater, extra lighting, & a radio installed by the previous owner all running off the original 14A Dynamo so would like to upgrade without compromising the electrical system.
GreensvilleJay
Well-known member
Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,