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Engine Whine & Red Alternator Light

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SebastienPeek Custom Title Time!

1,657 posts · joined May 2011 ·

#858794
Currently running into a couple of issues after my alternator conversion. You might not be able to make it out, but the engine is currently having a whine...

http://s1099.photobucket.com/albums/g388/SebastienPeek/?action=view&current=IMG_0055.mp4

A second issue is that when turning off the car, the red alternator light sort of pops on and then dims out.

http://s1099.photobucket.com/albums/g388/SebastienPeek/?action=view&current=IMG_0056.mp4
The sold one, '73 VW 1303 - Zelda
The project, '74 VW 1303 - Gretl

Sides Veteran Volks Folk

2,220 posts · joined May 2007 ·

#858797
Hmmm, ok - can't hear much at all in that vid.

Is it a whine or more of a scraping sound, and does it do it if you start the engine without the alternator belt fitted ???

If the answer to either of those is yes, then I'd be suspecting the fan is scraping either on the backing plate or the fan housing.

On the light, dunno - sounds like maybe something not wired up quite right...
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SebastienPeek Custom Title Time!

1,657 posts · joined May 2011 ·

#858808
Gave her a go without the belt fitted.
No whine.

Fixed up the spacing, now the whine is still there but the belt is about 1/2" loose. So might just be the alternator itself.

I have to fix up the wiring as it is, so this could definitely be a factor!
The sold one, '73 VW 1303 - Zelda
The project, '74 VW 1303 - Gretl

silver Dangerous when poked

2,169 posts · joined Dec 2002 ·

#858824
pssst...... its now an Alternator light
Keeping it real !

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#858840
The light glowing when you turn the ignition off till the alt stops spinning is perfectly normal.

Its just the power generated by the alt till it stops spinning that lights it up.

SebastienPeek Custom Title Time!

1,657 posts · joined May 2011 ·

#858871
Ah, so it is definitely supposed to be happening then?
It never occurred with the generator, that's all.

But, if this is what is supposed to be happening, then booyeah, everything is wired up properly.
Now, time to build something next weekend that'll make my wiring a crapload prettier.
The sold one, '73 VW 1303 - Zelda
The project, '74 VW 1303 - Gretl