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Filipe
 Post subject: Z31 Idler Pulley Bearing
PostPosted: Wed May 01, 2013 6:39 am 
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Joined: Sun Apr 01, 2012 4:19 pm
Posts: 1644
Hey guys, I'm thinking about replacing the Idler pulley bearing on my 84 turbo. Rock auto has two sizes available..which do I get?


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Frank T
 Post subject:
PostPosted: Wed May 01, 2013 9:26 am 
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Joined: Wed Apr 09, 2008 5:53 pm
Posts: 14781
Location: CT
Which one was made later? One was an improvement over the original, I would think.......?

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1970 240Z
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Paul
 Post subject:
PostPosted: Wed May 01, 2013 12:39 pm 
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Joined: Wed Jul 23, 2008 2:38 pm
Posts: 3411
Location: rhode island
Did you click on the PT # to see the application? Turbo? N/A? or year change? Could always measure yours to see what size you have.
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Filipe
 Post subject:
PostPosted: Wed May 01, 2013 4:48 pm 
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Posts: 1644
Both are for turbos, 84. Or that's what they're listed under at least..

I might have to measure it...going to try to without taking it out.
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mikeatrpi
 Post subject:
PostPosted: Thu May 02, 2013 3:41 pm 
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Joined: Tue May 20, 2008 8:03 am
Posts: 174
Take it out of the car and clean it up. Usually there is a number on it somewhere - 6204 or something like that. You can buy them locally if you go by that number at places like Napa, Levine or CarQuest.

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280zx NA to T... http://z.modeltrainguide.com
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Filipe
 Post subject:
PostPosted: Thu May 02, 2013 4:54 pm 
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Joined: Sun Apr 01, 2012 4:19 pm
Posts: 1644
Wish I had seen this earlier...I took a measurement of it last night and I think I got the right one...if not, I'll definitely look for that part number!

Thanks!
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mikeatrpi
 Post subject:
PostPosted: Thu May 02, 2013 8:57 pm 
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Joined: Tue May 20, 2008 8:03 am
Posts: 174
I checked my notes - on my 82 280zx, the old bearing said "6203" and I replaced it with a carquest "203-FF" bearing.

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280zx NA to T... http://z.modeltrainguide.com
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Paul
 Post subject:
PostPosted: Fri May 03, 2013 12:05 pm 
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Joined: Wed Jul 23, 2008 2:38 pm
Posts: 3411
Location: rhode island
For one, are you talking about the timing belt, because there is only the tensioner pulley? Or are you talking about one of the drive belt pulleys?
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jtang
 Post subject:
PostPosted: Fri May 03, 2013 6:26 pm 
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Joined: Wed Feb 29, 2012 11:44 am
Posts: 588
Location: New Haven, CT
I think this is the one that is on the serpentine belt (the one for the air conditioning and it goes to the "idler"), so no, not the timing belt.

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Justin
1986 Z31 NA 2+0
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Filipe
 Post subject:
PostPosted: Sun May 05, 2013 7:08 am 
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Posts: 1644
Yup, Justin is right.
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Paul
 Post subject:
PostPosted: Mon May 06, 2013 8:26 am 
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Joined: Wed Jul 23, 2008 2:38 pm
Posts: 3411
Location: rhode island
Ahh, got it. I call those adjusting Pulleys for the belt.
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Gregmatic
 Post subject:
PostPosted: Mon May 06, 2013 9:32 am 
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Joined: Mon Dec 01, 2008 9:42 pm
Posts: 300
Fillipe,
Just saw this post. I tried the same thing you are attempting to do and ended up ordering both Beck-Arnley bearings from Rockauto as I was unsure of which size to get. Sad to say but neither one fit any of my tensioner pulleys. Maybe your luck will be better...
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Filipe
 Post subject:
PostPosted: Mon Jul 29, 2013 11:02 am 
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Joined: Sun Apr 01, 2012 4:19 pm
Posts: 1644
Yeah Greg, I ordered a Beck Arnley as well, didn't fit either. Oh well.
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