AMC Eagle Den Forum

The Mighty 258 => The Engine => Topic started by: kalve on December 06, 2012, 02:51:29 PM

Title: pulley for 258
Post by: kalve on December 06, 2012, 02:51:29 PM
I am needing to find the small pulley that goes on a 85 AMC Eagle 258 engine. Its not the Idler pulley its the small one under it. Does anybody know what it is called an were I can get one at?
Title: Re: pulley for 258
Post by: AMC of Houston on December 06, 2012, 08:03:37 PM
?????  What's it turning??   Also need to know if its a serpentine belt setup or not, if A/C or not, and if A/C whether its factory air or American Air add-on.   If you have a way of looking at section 16.40 of the parts manual, you'll see what I mean.
Title: Re: pulley for 258
Post by: jim on December 06, 2012, 08:35:39 PM
There should be a diagram of the belt setup in the 'pedia.  I tried to look but I've forgotten my password.  I seem to remember that there is a tensioner pulley down near the bottom.
Title: Re: pulley for 258
Post by: kalve on December 07, 2012, 04:16:44 AM
Its got factory A/C an ha people call it a tension pulley an its on the bottom. I think the guy said it it for the A/C.
Title: Re: pulley for 258
Post by: TLC87Eagle on December 08, 2012, 07:13:48 PM
Are you talking about the one that runs on the backside of the AC belt?

If so, those pulleys are not available, but you can replace the bearing in them by pressing out the old one and pressing in a new. I know of a few people on here that have removed the backside pulley and ran without any problems though.

Title: Re: pulley for 258
Post by: kalve on December 08, 2012, 07:30:00 PM
sounds like it & yea get me that part # if you dont mind
Title: Re: pulley for 258
Post by: TLC87Eagle on December 08, 2012, 07:40:34 PM
The bearing is a 6203 type bearing, and can be found where ever bearings are sold. It is the same bearing used in the upper pulley as well, but the stock upper pulley bearing can not be easily changed because the front side is capped. Around $5-10 depending on where you get them.
Title: Re: pulley for 258
Post by: carnuck on December 16, 2012, 12:30:08 AM
That's 6203-2rsj or similar (that's the sealed one) NAPA carries a cheaper line P6203-2rsj too