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Question on Serpentine Pulley


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IneptMechanic
New User

Dec 27, 2011, 2:37 PM

Post #1 of 6 (2398 views)
Question on Serpentine Pulley Sign In

Let me start by saying I have no automotive experience. I recently changed a serpentine belt and found out one of my pulleys aren't moving.

99 Honda Accord
3.0 Vtec 6 cylinder
155.000 miles

The pulley that isn't moving is not ribbed, so it touches the outside of the belt. When I try to move the pulley it turns only about a half a inch. Yes, I know for sure the belt is on correctly. My question is, what could be the possible problems? I'm thinking it might be a bad bearing. Also, is this something I could fix myself? Let me remind you I know nothing about cars. I don't even change my own oil.
http://imageshack.us/.../serpintinebelt.png/


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 27, 2011, 3:17 PM

Post #2 of 6 (2376 views)
Re: Question on Serpentine Pulley Sign In

In your diagram that pulley is no doubt just there so belt can be routed and not rub. It should turn of course at the exact speed of the belt,

T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 27, 2011, 4:08 PM

Post #3 of 6 (2367 views)
Re: Question on Serpentine Pulley Sign In

It's called an idler pulley and they go bad all the time. Very easy to change. Just remove the center bolt and slide the pulley off.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



IneptMechanic
New User

Dec 27, 2011, 5:33 PM

Post #4 of 6 (2356 views)
Re: Question on Serpentine Pulley Sign In

Great, thank you.


IneptMechanic
New User

Dec 27, 2011, 10:58 PM

Post #5 of 6 (2342 views)
Re: Question on Serpentine Pulley Sign In

One more question... The bolt on the idler pulley is also my tensioner so if I try to remove it the whole thing just moves. How do I get it off?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 28, 2011, 4:03 AM

Post #6 of 6 (2330 views)
Re: Question on Serpentine Pulley Sign In

OK, the plot thickens.................

Do you have a frozen pulley or a frozen tensioner?................... big difference

If you need to replace a tensioner, there are 3 bolts holding it on.





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







 
 
 






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