Serptine Belt
05-03-2008, 02:45 PM
#2
Senior Member
Welcome to the site!
The goal is to release the tension applied by the spring-loaded tensioner.
I use extended sockets placed on the bolts of the tensioner pulley and tensioner base, then use a crow-bar or the like to apply leverage to lift the pulley. Be sure to keep the lever as close to the pulley and base as possible, so the sockets won't slip off the bolts.
Take things slow and easy, keep fingers and other mashable body parts out of the way, and only release enough tension to slip the belt off the alternator pulley.
Before removing the belt, make sure you have the belt path committed to memory, sketched out on paper, or have located the routing diagram - typically stuck on the radiator structure support, but it may be long gone given the age of the truck.
Route the new belt around all the pulleys, with the exception of the tensioner. Apply just enough leverage to lift the pulley high enough to slip the belt under. Again, watch out for your fingers, should the lever slip.
Should be good-to-go.
The goal is to release the tension applied by the spring-loaded tensioner.
I use extended sockets placed on the bolts of the tensioner pulley and tensioner base, then use a crow-bar or the like to apply leverage to lift the pulley. Be sure to keep the lever as close to the pulley and base as possible, so the sockets won't slip off the bolts.
Take things slow and easy, keep fingers and other mashable body parts out of the way, and only release enough tension to slip the belt off the alternator pulley.
Before removing the belt, make sure you have the belt path committed to memory, sketched out on paper, or have located the routing diagram - typically stuck on the radiator structure support, but it may be long gone given the age of the truck.
Route the new belt around all the pulleys, with the exception of the tensioner. Apply just enough leverage to lift the pulley high enough to slip the belt under. Again, watch out for your fingers, should the lever slip.
Should be good-to-go.
05-03-2008, 04:05 PM
#3
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Serpentine belt
When changing a fan belt, it is a good idea, if circumstances permit,
to inspect each pulley and make sure there is no build up of any string
or similar crud.
Check each and every pulley to verify that it is rotating without any
heavy drag.
Make sure that all the pulleys are in line and that the idler pulley is not
moving out of alignment.
This is just little stuff but it can save problems.
Ken H.
to inspect each pulley and make sure there is no build up of any string
or similar crud.
Check each and every pulley to verify that it is rotating without any
heavy drag.
Make sure that all the pulleys are in line and that the idler pulley is not
moving out of alignment.
This is just little stuff but it can save problems.
Ken H.
06-07-2009, 02:46 PM
#6
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Location: Cincinnati
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Belt routing diagram for 4.9L 6 cyl.
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06-08-2009, 06:37 PM
#8
gr8dane
Join Date: Dec 2008
Location: Mission Viejo, Ca
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When changing a fan belt, it is a good idea, if circumstances permit,
to inspect each pulley and make sure there is no build up of any string
or similar crud.
Check each and every pulley to verify that it is rotating without any
heavy drag.
Make sure that all the pulleys are in line and that the idler pulley is not
moving out of alignment.
This is just little stuff but it can save problems.
Ken H.
to inspect each pulley and make sure there is no build up of any string
or similar crud.
Check each and every pulley to verify that it is rotating without any
heavy drag.
Make sure that all the pulleys are in line and that the idler pulley is not
moving out of alignment.
This is just little stuff but it can save problems.
Ken H.
Live and learn the hard way or just read the directions
06-10-2009, 12:07 AM
#9
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Sometimes, this general rule might be of some help:
If the outer edge of the pulley is:
Tapered inward -- The belt goes on with the flat side out.
Flat outer edge -- The pulley rides on it's flat side in.
There should be a better way of wording this but it escapes me at the moment.
Ken H.
If the outer edge of the pulley is:
Tapered inward -- The belt goes on with the flat side out.
Flat outer edge -- The pulley rides on it's flat side in.
There should be a better way of wording this but it escapes me at the moment.
Ken H.
