Correct Belt Length

cdurbin

5 Year Member

Jul 27, 2012

563

109

64

North Charleston, SC

Aug 15, 2012

#1

• Aug 15, 2012

• #1

I've been having cooling issues while sitting in traffic and have tried everything except replacing the pullies. I found out from the previous owner that it has UDP's so I bought a set of stock pulleys on Ebay. I plan to change them out this weekend but I'm not sure what belt length I need. It's a 1991 Lx with A/C, the smog pump removed completely, and the remaining pulleys will be stock.
I found a routing chart online that calls for a 84.5" belt. Is that the correct length?
Thanks

 

jcgafford

10 Year Member

Jan 7, 2012

1,114

95

104

Adrian, MI

Aug 15, 2012

#2

• Aug 15, 2012

• #2

yup! for the 5.0 motor it is
http://www.autozone.com/autozone/pa...Z8gcul?itemIdentifier=150375_121244_8238_6774

 

cdurbin

5 Year Member

Jul 27, 2012

563

109

64

North Charleston, SC

Aug 15, 2012

#3

• Aug 15, 2012

• #3

jcgafford said:

yup! for the 5.0 motor it is
http://www.autozone.com/autozone/pa...Z8gcul?itemIdentifier=150375_121244_8238_6774

Click to expand...

Sweet, Thanks for the confirmation and the link!
I sure appreciate all the wisdom you guys share on here.

 

boostfrk

10 Year Member

Aug 30, 2011

712

69

59

Colorado

Aug 15, 2012

#4

• Aug 15, 2012

• #4

A good double check I've heard is to take a piece of string, wrap it around the pulleys per the belt routing and then measure it.

 

Reactions: 88LX5.Oh

pissedoff92

Member

Aug 14, 2011

288

7

18

western new york

Aug 18, 2012

#5

• Aug 18, 2012

• #5

Dont follow the string technique too closely though, I screwed up about 3 times and ended up just getting lucky. But I run a wierd belt setup.

 

David Pepiton

Active Member

Dec 17, 2011

662

68

49

Laveen, Arizona

Aug 18, 2012

#6

• Aug 18, 2012

• #6

the string setup works fine just keep in mind its inside belt diameter not outside. if you dont loosen the tensioner you will want to subtract about 3/4 of an inch

 

cdurbin

5 Year Member

Jul 27, 2012

563

109

64

North Charleston, SC

Aug 18, 2012

#7

• Aug 18, 2012

• #7

Well, the 84.5" belt was just a little too short. I could have made it work but I would have had to pry it on and I didn't want the extra tension on my alternator so I went with a longer belt. I ended up using a 85.8" belt. I think the other was too short becuase of the alternator pulley. I have an upgraded 130amp alternator on there now and the pulley looks larger than the stock one. Anyway, I got it all put back together and running like a champ. Thanks for all the help.