I'm getting the Puck out of retirement and am going to charge the battery via a split charge relay. There's also the leisure battery on the van charged via a split charge relay, so the load on the alternator will be increasing. It does a pretty good job of keeping the van leisure battery charged, but will it still manage with 2 leisure batteries to charge?
the issues with the uprated alts are they are new Chinese made ones and they struggle to make a decent normal ones let alone a uprated one
I looked into it recently.....still not decided, for the reasons @matty mentioned....some US sites are selling 90A, but tbh I don't see how you could squeeze 90A reliably out of a case that was designed for 55, or even 70 max, without making some alterations to the internal casting and making some provision for proper cooling.....ask the guys that sell them and they have no idea....if it was properly redesigned, you'd think they'd make a song and dance about it....after all they aint cheap. the uk specialists I've spoken to about rewinding a stock alt. have all said it requires more than just wrapping a few more feet of copper round the armature.....a good, properly redesigned high output alt would be a real money spinner for anyone with the facility to turn a few out (@lhu1281 ? )
Yes, I'm not convinced about buying a repro 70A alternator to replace a perfectly good 55A OEM one. If I could get Bosch then maybe.
So why can't you just adapt a new modern car alt to fit , that would be what I would do get an audi a3 diesel alt on there ...or a smaller pulley ?
Good point....but I reckon most folk would like something that simply plonks on in place of the original, without additional bracketry. Having said that, a bespoke kit with all the necessary wouldn't be a bad option either....I've seen a few auxilliary alt conversions but an uprated like for like would be the real deal IMO
I'll have another chat with the autoelectrical go-to-guy, in Bolton....proper old school technician, rather than one of those types that looks thru the catalogue and shakes his head
If it's a type 1 engine, you're going to have to accomodate the fan driveshaft. A lot of modern alts have the regulator mounted on the rear of the alt - no room for a big hole!
use a mains powered battery charger both before and after camping leisure batterys don't like the fast hard charge of a alternator anyway