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914UL: Rear mount external alternator?

by Stephen Kean in 912 / 914 Technical Questions 5 years ago

Anyone know if a ducatti style, rear mouted external alternator exisst? Make / Model#?

Re: 914UL: Rear mount external alternator?

by Ken Ryan » 5 years ago

Ken Ryan

28 360 928

B&C makes an alternator that uses the vacuum pump drive. You'll have to contact them regarding output and model number.

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Re: 914UL: Rear mount external alternator?

by Stephen Kean » 5 years ago

Stephen Kean

2 13 18

Right, the BC410-H, but it mounts on the front replacing vac pump. Installed it last year. Works great, but suffers from 2.43 to 1 gearbox ratio..
Question: is there a rear mounted ( near water pump) alternator?

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Re: 914UL: Rear mount external alternator?

by Jacques De Jonghe » 5 years ago

Jacques De Jonghe

3 8 14

I have a B&C L40 on the back of my 914UL in my Europa XS. Works very well, but heavy! I can provide you plns if interested.
There are some companies making specific alternators for the back of the engine:
https://shop.edgeperformance.no/en/home/458-ep-32a-secondary-alternator.html
https://www.flygas.info/2017/06/18/kit-double-alternator/

Thank you said by: Stephen Kean

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Re: 914UL: Rear mount external alternator?

by Garrett Wysocki » 5 years ago

Garrett Wysocki

1 572 1.45k

I added The B&C on the back of the gearbox years ago and it works great. The regulator is adjustable so I set it to output 2/10ths of a volt higher than the output of the Rotax generator, It carries the load most of the time unless the battery get run down a bit then I see almost 40 amps on the climb out above 5000rpm.

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