8N starter or voltage reg. stuck on?

[Soundguy]

yep.. you can use the volt meter to check for charge... figure 7.2v at high rpm.. and a static of 6.2 or 6.3 for a good well charged 6v battery.

Is your ammeter a loop style with a wire running thru a small loop on the back, vs haveing wire connections to 2 posts?

The cutout is a portion of the vreg assembly..

soundguy

 

[simonmeridew]

I was somewhat shocked to measure voltage on my tractor this afternoon.
Results: measured at the starter switch terminal:
engine off, new battery 6.4 volts
engine on, measured same spot:.... 13.8 volts, sometimes jumping to over 14.
I shut it off, and remeasured: same result.
something must be stuck in the VR

Yes, the ammeter is an induction type, no direct connection, I assume it is original. That's the reason I haven't replaced the ammeter: the ones I have seen are all the cut and terminal type ammeters and I hated to do that.
simonmeridew

 

[Soundguy]

I bet you used a conumer grade digital volt ohm meter.. perhaps even an autoranger .. am I correct?

if voltage was really that high, then you would lkikely show super high charge like 30a on the ammeter.. more likely you have a bad voltage reading due to the meter you used.. consumer grade meters and cheap industrials are not compensated meters and brush and ignition nose fools their sampling rate scheme into thinking voltage is higher... a cheap 5$ analog is actually better on an old brush / points system..

soundguy

 

[simonmeridew]

not sure about the multimeter--Radio Shack not particularly cheap digital as you said,--has not shown previous inaccuracy, but brush/points certainly present in tractor. I'm always ready to learn, but ammeter non functional as my pic shows.
My headlights are not hooked up, but I'll try to hook up some 6 volt test light; exceptionally high voltage (14 volts) would show very obvious brightening when engine runs vs battery only.
simonmeridew

 

[Soundguy]

new ammeter costs ($ for a sunpro.. hook it up and you don't have to guess anymore.

ratshack makes a decent consumer grade meter for general purpose work.. however they are not compensated meters.. Put it this way.. if it didn't cost a few bills.. it's a consumer or light duty grade meter.. not industrial or lab grade, which are decent $$, accurate in noisy environments and compensated. I use a graphing meter with freq counter and non auto ranging functions. auto rangers are the worst when it comes to noisy lines.

soundguy