stringfellow
Active Member
I'm building an IO-540 which I will be using EFII on. I'm at the stage of installing and indexing the idler gears (done.) It has been suggested that I leave out the magneto drive gears during reassembly because they won't be used by the electronic ignition (EFII is timed by crank sensor, powered by battery.)
Any concerns with this? Unless I sell the engine, it's doubtful the mag drives would ever be used. If they ARE installed, but drive no mags, am I wrong in thinking that's even more risky?
The next question is: I'd like to use the vac drive to power a backup alternator like this (8A is not enough for EFII fuel pumps.) Do I use the old vac pump adapter too? To be honest, all my parts are down at the shop I'm currently using, and I'm trying to determine if the pump adapter with its oil seal is required for using the alternator. I imagine a quick call to B&C would help but it's the weekend.
I do recall a conversation here a while back about how using that can create a massive internal oil leak, but I don't remember exactly how.
So basically, I need a little guidance on deleting unnecessary gears for EFII, and how to use the vac/accessory drive for an alternator.
Thanks!
Any concerns with this? Unless I sell the engine, it's doubtful the mag drives would ever be used. If they ARE installed, but drive no mags, am I wrong in thinking that's even more risky?
The next question is: I'd like to use the vac drive to power a backup alternator like this (8A is not enough for EFII fuel pumps.) Do I use the old vac pump adapter too? To be honest, all my parts are down at the shop I'm currently using, and I'm trying to determine if the pump adapter with its oil seal is required for using the alternator. I imagine a quick call to B&C would help but it's the weekend.
I do recall a conversation here a while back about how using that can create a massive internal oil leak, but I don't remember exactly how.
So basically, I need a little guidance on deleting unnecessary gears for EFII, and how to use the vac/accessory drive for an alternator.
Thanks!