The real concern is that diesels shake the crap out of everything.
Lots of vibration, which puts an unbelievable amount of stress and
load on mounts such as yours. Also, the mounting ear on the alt is
pretty thin.
For instance, on Indy cars, the vibration load on mountings such as
these have been calculated at over 125 Gs.
The upper mounting arm on that alt should be 1/2" thick, and bolted
flush to the ear, however you articulate it to accomplich this.
JR


On Sat, 13 Nov 2010 12:25:38 -0500, Wayne.B
wrote:

On Sat, 13 Nov 2010 09:05:41 -0800, JR North
wrote:

Nice. but the upper mount pivot bolt shimmed with all those washers
will fatigue and break soon.

I understand your point and concern.

The bolt is 1/2 inch grade 8 steel which is pretty sturdy stuff. The
washers have been bonded together to create a rigid spacer. I'm
going to get a slightly longer bolt and put a washer and lock nut on
the fan side of the adjustment arm.

Any other suggestions?