SouNdguy - Pulley Description

I recall a few weeks ago you posted a photo
and subsequently a parts description of
your adding a pulley to your 12-volt conversion.
I am interested in doing the same and, like
an idiot, did not print the info at the time.
I was unsuccessful finding it with a search.
If it's not too much trouble, could you please
repost the info? Or you could just e-mail it
to me.

Thanks,
Allen

pulley is v-belt:

3/8 x 2" x 5/8-v white in color.. long arbor towards the alternator ( on my setup anyway ).
Has sealed bearings.. Is listed as an idler pulley on the shelf at TSC

I use a 4" or 5" 3/8 bolt.. choose whatever 'fits' your lower bracket setup.

I also used (2) 3/8 flat fender washers as spacers, and (1) 3/8 locknut and (2) 3/8 nuts as a doublenut scheme in addition to the lockwasher for safety... Don't want the pulley flying off.

I also purchased (1) package of (2) pieces.. 3/8 locking collar.. made by speeco.. in a TSC plastic bag.. back in the pto and lynch pin section. sku number is 11-95311 these are the little metal bushings with allen wrench set screws to lock them on the bolt

hope this helps

Soundguy

Thanks for the info. Do you remember
what length belt was required? I realize
that it may be different on my setup.

Thanks for all your help.

Allen

Soundguy

If I have the email info at home I'll check.

Basically it is like a 4.5" 3/8 bolt that goes thru the lower ear on the alternator and thru the smaller tabs that hold that ear.. the smaller tabs are the 'bottom bracket' which attatch to the gov'ner. On the bolt I used (2) 3/8 set screw lock sleaves that TSC sells.. they are 3/8 ID and have a hex headed locking set screw. The pulley was an off the shelf one with a sealed bearing.. I matched it to the vbelt ( 5/8? ) the system is using. It had a long and short arbor.. I can't remember which way I put the arbor.. but between flipping the arbor, and the locking sleaves and a couple flat washers and a nut and lock washer.. it has functioned absolutely perfectly.

Before this mod, I had about 3/8 of clearance between the alt belt and the front distribuitor, with the alt at max adjustment on the top bracket.

The previous owner tucked that alternator in their high and close, I guess to keep it away from the steering arm... Doing this though put the belt critically close to the distribuitor.. in fact.. when i got it.. the top bracket was loose, and the belt wore a mark in the distribuitor.. Gaspump and Raytasche pointed this out to me. I had adjusted the alt before a show and not got it tightened down good I guess, and it was rubbing again.. that was when I decided to modify it.

Took about 15$ worht of parts from tsc.. and about 20 minutes of work. Like I say.. pulley was off the shelf item at tsc.. they got lots to choose from.

Soundguy

I'm glad I'm not the only one that could
not find it. I wonder if the post is in
the "in between state" from what is available
on the pages directly and on the archives?

The 12-volt conversion I have was done by
a friend of my father. The person that did
it was employed by Lockhead in Atlanta, GA.
It starts and runs fine. But it the belt
does seem very close to the front-mount
distributor. It may have rubbed a little.
(The conversion is about 10 to 12 years old.)

Even though I do not know much about engines,
etc., I do want to keep the 8N in good condition.
(I am good with my hands and simple mechanical
things. I just never had anyone around that was
experienced with engines when I was a lad.)
My paternal grandfather bought it new in 1949,
and it has been in family since then. I heard
that it was the first 8N bought in our county.

If you find the info, please post or e-mail.
If not, don't worry about it.

Thanks,
Allen

It may even have been lost in that 'day' where all 10 pages of posts were on one day.. might have been lost or something.

I think I have the info here. I'll post back in a bit.

As long as you have the room to get a longer bolt thru the lower mounting point on your alternator.. this should be a 10 minute job.

Soundguy

Here is the other pic

Go look in Parts and Pieces photo gallery.

The prev. owner did some /custom/ work getting the pulley lined up..I guess if it ever does die, I'll have to add some sort of extra spacer to the shaft to get them to line up again.

If it does toast out.. I'll post the info. When I bought the tractor I knew it was in electrical distress.. but with delco alternators so cheap I figured I would be replacing it anyway. It was a nice suprise when Jim Cox emailed me the magical incantations and hand gestures to make it come back to life... So right now anyway.. I figure I'm ahead of the game.... even if I do have to replace it later on.

Soundguy

And yeah... as much usage as that alt sees.. I wouldn't doubt if it lasted another 10 years..

Soundguy

A little bit after starting, every now and then to top the battery off (ignition only draws about 3-4 amps), rest of the time its just spinning.

Plus, they are indeed some tough old alternators.

Sorry, but there are about a gazillion 37 amp 10SI's out there. Probably the most common size, in fact. 10 amps is more like 27% of their rated. but still..... ...

I have a 66 amp on my 2N. Lotsa juice for accessories, boosting etc.