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problems with HO alternator


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supradude 
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Posted: May 05, 2005 at 5:38 PM / IP Logged  
I'm sure somebody has needed a smaller pulley and ordered one from somewhere. Help!!!
'85 Toy
racer427 
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Posted: May 05, 2005 at 6:29 PM / IP Logged  

Try looking for *Underdrive* pulley's here http://www.summitracing.com

They might have what you are looking for.

Chris

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geepherder 
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Posted: May 05, 2005 at 8:31 PM / IP Logged  
Actually, Chris, he needs a smaller pulley, which would be the opposite of an underdrive pulley- along the lines of an "overdrive" pulley.  Since the pulley would be spinning faster in relation to stock, it'd be robbing more torque and hp from the engine.
My ex once told me I have a perfect face for radio.
Captanham 
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Posted: May 05, 2005 at 8:46 PM / IP Logged  

underdrive pullies are larger, they would not work properly, it would have the opposite effect,, if you cannot find one, maybe a machine shop could mill it down (i'm not really sure if that's possible but you could try)

or you can just measure the paramiters, go threw a junk yard and find one, and rig it up to the alt yourself

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supradude 
Silver - Posts: 915
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Joined: September 21, 2004
Location: South Carolina, United States
Posted: May 06, 2005 at 7:32 PM / IP Logged  
Since I'm having a hard time finding a pulley, can anybody tell me how to get more rpm's at idle? There's no adjustment screws but I should be able to do it another way. 
'85 Toy
geepherder 
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Posted: May 06, 2005 at 10:20 PM / IP Logged  
You can try tightening the throttle cable under the hood- that should bring up the idle speed.  Be aware though, when you do this you can sometimes get an annoying rough idle (varies up and down) like you would with a vacuum leak.
My ex once told me I have a perfect face for radio.
supradude 
Silver - Posts: 915
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Joined: September 21, 2004
Location: South Carolina, United States
Posted: May 24, 2005 at 5:18 PM / IP Logged  
Just to inform everybody: The alternator I had trouble with from alterstart has died again. If you remember, I sent it back and they said they repaired it, but when I got it the pulley was broken. So I had to send it back again. They said they repaired the "stator" in it. It wasn't charging at idle. Well, it's doing the same thing again. This time its so bad the car won't even idle. When it tries to idle it just cuts off completely. I put the factory one back on again and it runs fine. I am through with that crowd for good, warranty on not. I will just eat the cost and buy another on from them. HA!! I'm not that stupid. I'll get one from Dominick this time and be done with it. Just wanting to let people know so they don't make the mistake I made.
'85 Toy
racer427 
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Joined: August 04, 2004
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Posted: May 24, 2005 at 5:31 PM / IP Logged  
Hell, where was my brain when I posted that. Uhg. Looking for overdrive pulleys not underdrive pulleys. problems with HO alternator - Page 2 -- posted image.
Alpine CDA-9833 HU
Diamond Audio M661 Components
MTX Thunder T6.6 Components:rear fill:
Cadence Q400 4 Channel Mains + rears
Thunder 801D Subs
MTX 1004 10's
Dual 4g wire to rear
4g grounds
supradude 
Silver - Posts: 915
Silver spacespace
Joined: September 21, 2004
Location: South Carolina, United States
Posted: May 25, 2005 at 5:50 PM / IP Logged  
OK, I took my alterstart HO alternator to a local rebuild shop today. I refuse to deal with them ever again. I have used this shop several times in the past, but they usually only work with stock units. I explained my problem to them and they put it on the testing machine and found exactly what I had been telling alterstart all along. It is putting out absolutely (0) and normal speed. When revving it up it shows proper output. They told me it is more than likely the stator. This is the same thing they claimed to have fixed a few months ago. I asked about a smaller pulley and they said it wouldn't help any in my case. They are going to call around and see if they can find parts and repair it for me. They also said it's normal to lose some output at low rpm's in order to get high output at high rpm's, but mine is doing nothing. Lesson learning can be costly! 
'85 Toy
Alpine Guy 
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Posted: May 25, 2005 at 7:29 PM / IP Logged  
Alterstart is basically the pyramid/legacy of alternators i guess.
2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
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