DIY Replacing your belts. Very Easy
07-23-2008, 12:03 PM
#42
New Member
Join Date: Oct 2003
Location: Vienna, VA
Posts: 180
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by WTX350Z
Nope, I use the ol faithful thumb-o-meter.
Asterix
10-13-2008, 05:08 PM
#47
Part numbers for the belts from NiSSan:
11920-AG900 Belt Compressor list price $18.82
11720-4P102 Belt Fan & Alternator list price $21.86
I purposely overtightened the belts knowing they would stretch just a wee bit as the Z runs.
I did my hoses at the same time, when you have the undercover off you have plenty of access, my original antifreeze was 3.5 years old when replaced
11920-AG900 Belt Compressor list price $18.82
11720-4P102 Belt Fan & Alternator list price $21.86
I purposely overtightened the belts knowing they would stretch just a wee bit as the Z runs.
I did my hoses at the same time, when you have the undercover off you have plenty of access, my original antifreeze was 3.5 years old when replaced
Last edited by 350ZTheStandard; 10-13-2008 at 05:22 PM.
11-03-2008, 07:12 AM
#48
Registered User
iTrader: (2)
Join Date: Feb 2008
Location: Florida
Posts: 197
Likes: 0
Received 0 Likes
on
0 Posts
I did this, great write up. But unfortauntely my tension adjuster on the alternator pulley is ****ed because I snapped the head off the bolt. I was told that I can just dremel the old bolt out, and install a new one. Is this true, or do I have to replace the whole tension pulley w/ adjuster which costs $75 or so. Any help is appreciated on this..
11-12-2008, 08:25 AM
#49
Registered User
Join Date: Oct 2007
Location: Boise, Idaho
Posts: 1,695
Likes: 0
Received 0 Likes
on
0 Posts
Done! I did have to pull off the under tray and adjust a second time. I wasn't checking deflection from the top where I should have, and the AC belt was left a little loose. Got it tightened up perfectly now on both belts 
Great write up...very easy DIY
Great write up...very easy DIY
12-28-2008, 10:20 AM
#52
Registered User
iTrader: (3)
Join Date: Sep 2006
Location: U. S. A.(PA, MD, AZ) / Romania
Posts: 356
Likes: 0
Received 0 Likes
on
0 Posts
Great write up. very easy to install new belts. Quick question, how essential is that plastic under tray. Mine is long gone after hitting two dead animals in a row in a lowered Z. Just messed up or ripped to many plastic pieces for it to properly stay there so I had to remove it. Should I replace it or is it not that important?
12-28-2008, 02:27 PM
#53
Retired Admin
iTrader: (95)
It is there so that the components are protected from road debris and the elements. It also serves to reduce the coefficient of drag. It isn't essential, but manufacturers put that there for a reason.
01-07-2009, 04:40 AM
#57
Registered User
Join Date: Jan 2009
Location: Bayville, NJ
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Just wanted to say thanks for posting this, step by step with great pictures. I'm a huge fan of doing what I can myself to my Z, and since I recently heard some squeeling noises coming from my engine when it wasn't completely warmed up and freezing outside, I knew my belts needed to be replaced. I look forward to replacing them with the help of this thread!
Thanks!!
Thanks!!
