| LOST JEEPS http://www.lostjeeps.com/forum/phpBB3/ |
|
| Alternator decoupler pulley? pics? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=75014 |
Page 1 of 1 |
| Author: | Hot Stuff [ Mon Apr 22, 2013 10:54 pm ] |
| Post subject: | Alternator decoupler pulley? pics? |
Does anybody have pics of this? I cant find any. I've been trying to figure out what it is or where it is, and what is it's purpose. Thanks |
|
| Author: | SmokyCA [ Mon Apr 22, 2013 11:48 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
It's the only pulley attached to the alternator. Inside the pulley is a decoupler mechanism. |
|
| Author: | Hot Stuff [ Tue Apr 23, 2013 6:11 am ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Really? You don't say. The reason I asked is because I don't think mine has one. Mines just for a regular pulley like every alt. should have. I just wanted a pic to verify. |
|
| Author: | audiboy86 [ Tue Apr 23, 2013 7:53 am ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
The is a decouple pulley with a built in clutch set the clutch is what goes bad in these just make sure you get the right part number and here is a pick my old one has the white build up. And if your old one looks like the one on the right i will sell you one for 50 plus shipping. 
|
|
| Author: | Hot Stuff [ Tue Apr 23, 2013 8:21 am ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Here's what mine has.... I just now walked out, popped the hood and took this pic. 
|
|
| Author: | audiboy86 [ Tue Apr 23, 2013 10:34 am ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Some one has replaced yours with a hard mounted pulley not the decoupler I remember people talking about this on the forums but can't remember the issues it caused. I know with that set up the alternator runs constantly instead of just when it needs to. |
|
| Author: | LMWatBullRun [ Tue Apr 23, 2013 12:45 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
It is not just that it runs all the time, it is constantly coupled to the serpentine belt, which means that the torque pulses from the 4 cylinder motor are transmitted to the belt, the tensioner, the idlers, and the alternator, etc. causing premature failure of all these components. |
|
| Author: | Hot Stuff [ Tue Apr 23, 2013 12:50 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
So I assume I would put one on and lose the pulley that's on it now. |
|
| Author: | Brianawd [ Tue Apr 23, 2013 12:53 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
http://www.youtube.com/watch?v=ZOtW0Xx79cQ |
|
| Author: | JieselDeep [ Tue Apr 23, 2013 1:56 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Isn't it there to allow the alternator to 'coast' to a stop instead of stop almost instantly when you shut off the engine? Diesels come to a near dead stop when you cut off the flow of fuel. Gasoline engines slow down and then stop. Hard, fast stops are hard on spinning things like alternators...at least that's the explanation I remember reading somewhere! |
|
| Author: | Brianawd [ Tue Apr 23, 2013 5:21 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
groelzj wrote: Isn't it there to allow the alternator to 'coast' to a stop instead of stop almost instantly when you shut off the engine? Diesels come to a near dead stop when you cut off the flow of fuel. Gasoline engines slow down and then stop. Hard, fast stops are hard on spinning things like alternators...at least that's the explanation I remember reading somewhere! http://www.youtube.com/watch?v=MTGD8MZf-oM This gives a better understanding of how each pully works. |
|
| Author: | Hot Stuff [ Tue Apr 23, 2013 5:42 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Good videos. Thanks, looks like I need to put one on mine instead of the solid pulley it has on it now. |
|
| Author: | Hot Stuff [ Fri Apr 26, 2013 10:35 pm ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
How long is the stud for the alt. With the decoupler pulleys? I'm wondering if mines to short? Looking at the pic of mine it doesnt appear to be long enough to get a nut on the stud with the pulley on it? Is the pulley recessed for the nut like on my solid pulley? |
|
| Author: | CATCRD [ Sat Apr 27, 2013 12:09 am ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Hot Stuff wrote: How long is the stud for the alt. With the decoupler pulleys? I'm wondering if mines to short? Looking at the pic of mine it doesnt appear to be long enough to get a nut on the stud with the pulley on it? Is the pulley recessed for the nut like on my solid pulley? On the stock alternator there is no nut. The pulley threads right on and the belt is always turning it in the tightening direction. |
|
| Author: | Hot Stuff [ Sat Apr 27, 2013 6:08 am ] |
| Post subject: | Re: Alternator decoupler pulley? pics? |
Ah, ok, that makes sense. I was wondering. Thanks |
|
| Page 1 of 1 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|