[jswareiv]

I have an IO-390, just received, not mounted yet and I wanted to install the secondary alternator next to the oil filter. Does anyone have a good solution/tool to getting to the lower left nut to tighten and torque? B&C recommends using a crows foot, which they sell for $35. It seems to be in an impossible location. Thanks.

 

[Auburntsts]

I used a regular combination wrench reaching up from underneath . It wasn't easy and it took a bit of time as the nut only moved a fraction of a turn at a time. As for torque, I used the German method: gutentightenough.

 

[Ralph Inkster]

Every so often I'm dragged to a Garage/Yard sale by my wife. It makes for a barely tolerable experience if I find some hand tools to scrounge thru. A great buy is the 'mostly complete' wrench sets offered for $4, my wife wonders why I buy them. It's great to have odd wrenches available you can hack, twist, grind, bend or whatever- for that one time use, without ruining your good set of wrenches. It's also amazing how often you end up using that specialty wrench for other things later.

 

[RONSIM]

Installed mine --- know the problem

The "special" wrench that ACS, and others, sell is OK for vacuum pumps (still very hard), but for the alternator, it does not work well at all --- I did the first three nuts in about 3 minutes ------ worked nearly two hours getting the other one on ----- and I had done many vacuum pumps.

R.

 

[jswareiv]

The "special" wrench that ACS, and others, sell is OK for vacuum pumps (still very hard), but for the alternator, it does not work well at all --- I did the first three nuts in about 3 minutes ------ worked nearly two hours getting the other one on ----- and I had done many vacuum pumps.

R.

Well, once I figured out how to get to the 4th nut on the lower left, it wasn't that difficult. I did have to sacrifice a new wrench. It happened to be a 7/16" ignition wrench, but a combination would probably work as well. I cut it in half which gave me enough clearance to move it in that area.