Well What dayya know....I manage to break a bolt head...
Now I got double the work.

BRB

 

Broke bolt head on what?

 

I guess you didn't realize how strong you really are. Broken bolts are a real PITA to get out sometimes.

 

Bolt head gone for good.

After a lot of coke and thinner and getting high with fumes I manage to get it open.

I was able to get the thread out but I need a drill press to drill through the tuck bolt piece. It's in machine shop now..

So checking on then semi's now

 

Negative plate bolt broken, Not even a connection
I'm referring to debe's diagram

Tapped for tacho ..

But one problem..I found this bugger inside

It's a cap but for what...??

It's wires cannot be found or I dunno where they went or dissolved but what is that cap for ?

By the way, How do I test the circuit ?

 

Maybe the cap was part of the tach signal? You know, block DC and pass AC?

Thought you got a new alternator, this one doesn't look too new.

 

This is how i bench test altenator regs. Note the Ind lamp must be no more than 2W. The globe across where the rotor/brushes can be about 5 or 10Watt. Using an adjustable powersuply feed power as shown. If the Reg is working ok then the globe where the rotor was should be On with 24V & go out at about 28V. (iwill be out for the next 6Hrs). Also no idea why theres a Capacitor inside. Some time there is a .5uf cap externaly on the B+ to stop altenator whine in radios.

 

U know these stuffs well Daryl..!

Thanks a bunch ..The Info u provided helped all thru out...

I tested 'em and Rectifiers and the Reg is A-OK.

I assembling it now.. post back later.

 

Maybe the cap was part of the tach signal? You know, block DC and pass AC?

Thought you got a new alternator, this one doesn't look too new.

or it could be connected across the Lamp ...I dunno..

I am getting rid of it..!

 

Finished the Alternator

My way of testing the alternator

The Lamp Voltage shoots to 22V, Could not run too long. too much wobbling.

RPM works like a charm.

I think the charge lamp is now blown. Told em to check it. We'll know a few weeks later I guess.

Thank you all for all the help. Specially to Daryl.

You guys makes my jobs definitely much easier

 

U know I finished it.
Still no pay.
Guess what, they are not answering my calls. Been calling them yesterday and today,.........so, guess what I did ?
In the middle of the night....i.e just now.

 

Guess they will have to call you to fix the mysterious problem!!! Just curious how did the Tacho work & was it close to acurate?

 

About the tacho, it's funny...
There are no holes in the meter to adjust anything, but when I throttle the engine RPM responds accordingly. I mean not over scale or anything. I guess the meter is an Alternator tacho type, right ?

Abt last night. !!!

It's not a problem to fix, it's big. Wait till they try to take off.

 

It may well be then. At idle i would expect it to be around 600/700RPM.

 

Yup ! at idle that's what I get.

{ed}

I took back what is mine just in case.
But tonight they paid. So All's well tht end's well ..Eh!