Pulley on Alt.

[crx11 10+ year member]

Hi, I got my Alternator from DC Power today, for my 06 Honda Accord, great product by the way, but something is bothering me, why does the DC Alt have a small pulley than my OEM Alt?

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[Supergumby5000 5,000+ posts]

smaller pulley = more rotations per one rotation of the belt = faster spinning pulley = increase in output

 

[Bumpin' Goalie 10+ year member]

smaller pulley = more rotations per one rotation of the belt = faster spinning pulley = increase in output

Exactly.

 

[crx11 10+ year member]

Ok, I was a little worry about that. so all the companys that make HO Alternator (like DC Power) use smallest pulley than the OEM Alt?

Thanks guys

 

[TMali 10+ year member]

smaller pulley = more rotations per one rotation of the belt = faster spinning pulley = increase in output

Duh! silly

 

[schackel 10+ year member]

do you have to use the pully they come with???

 

[schackel 10+ year member]

do you have to use the pully they come with???

I ask because I can not find a belt that fits my new alt from mechman

 

[Supergumby5000 5,000+ posts]

I ask because I can not find a belt that fits my new alt from mechman

if you cant find a belt to compensate for ~1" of change in length, you arent looking very hard //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

no, you do not have to use the same pulley, but if you swap pulleys, the alternator ratings will be off, and it may not perform well

 

[crx11 10+ year member]

I use the same pulley that come with the DC Alt, Also I'm using the OEM belt that was with my older Alt (waiting for Rob to send me the gate belt) and the Alt is doing great, no voltage drop.

 

[schackel 10+ year member]

if you cant find a belt to compensate for ~1" of change in length, you arent looking very hard //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
no, you do not have to use the same pulley, but if you swap pulleys, the alternator ratings will be off, and it may not perform well

there is definatly not one. been to a mechanic and everything

 

[k_schutte 10+ year member]

there is definatly not one. been to a mechanic and everything

Very Doubtful... what kind of car? do you have the number off your belt?

they make like 20 different lengths of belt that will work on my car. It is as simple as finding the part number and then finding a shorter one. For example the Supercoupe used something like an 80394 stock but when I added mt smaller blower pulley I needed something shorter. Of course the high school kid behind that counter said they didn't have anything. I then said, see if you have something like 80390, sure enough he did and ti was like 1/2" shorter and worked perfectly!

 

[schackel 10+ year member]

Very Doubtful... what kind of car? do you have the number off your belt?

they make like 20 different lengths of belt that will work on my car. It is as simple as finding the part number and then finding a shorter one. For example the Supercoupe used something like an 80394 stock but when I added mt smaller blower pulley I needed something shorter. Of course the high school kid behind that counter said they didn't have anything. I then said, see if you have something like 80390, sure enough he did and ti was like 1/2" shorter and worked perfectly!

i cant remember what the number is but my car is

2003 Honda Civic

I have been threw 10 or so belts. there is only one that works a little bit but the alternator is on its max setting. the next size down is too small to fit over onto the the alt when it is on its smallest setting. there is not very much play on it at all

 

[k_schutte 10+ year member]

i cant remember what the number is but my car is 2003 Honda Civic

I have been threw 10 or so belts. there is only one that works a little bit but the alternator is on its max setting. the next size down is too small to fit over onto the the alt when it is on its smallest setting. there is not very much play on it at all

You don't need much play at all. I would throw that one on there and just see how it does. If you notice rubber shavings then you know it is too tight but I doubt that would be the case. If it comes down to it, you could always just try to clock the tensioner, I would use that as a last resort though...

Let me know what part number you have on it right now when you can because i already found like 5 different lengths...

 

[schackel 10+ year member]

no no no the one that works is still too loose. it squeaks. and whats the tenstioner?