Re: serpentine belt ('87 YJ)
 

Well, you have the odd ball 4.2 with the long belt. The manual is
referring to the V-belt engine, not yours.

You need to loosen the PS pump pivots and the bottom lock nut to loosen
a long set screw in the right hand side of the PS pump to loosen the
belt.

BUT! Why bother? I never loosen the belts when changing a waterpump.
I just pull out the pump and put the new one back in. The belt will
just go back to the same tightness it was before.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

bobvonbob wrote:
>
> hey all - '87 YJ w/PS and AC (non-working)... water pump been going bad
> for a few weeks and is now on its last legs - went to replace it today
> with the less than helpful Haynes manual as a general guide and ran
> into what seems to be a common problem - i was unable to loosen the
> serpentine belt. now i was attempting to loosen the alternator but
> after breaking every rusted old bolt loose on the damn thing it still
> wouldnt budge - looking at it only confused me further because altho
> there were clearly adjustment holes in the alternator bracket there
> doesnt appear to be any way to actually pivot the alternator! i just
> did a quick search on this in the list and found numerous references to
> similiar problems with the answer being that one must use an adjusting
> bolt on the back of the POWER STEERING PUMP bracket...
> but - since all of these posts were for much later model vehicles than
> mine i'd love a confirmation. i just cant bear to go out and look
> around under the hood right now. i was ready to set fire to the damn
> thing today after about 1.5 hours of hot sweaty dirty frustration...
>
> so - belt is slackened and adjusted via the power steering pump
> bracket?
> gotta love that haynes manual: "slacken belt by loosening alternator
> bracket pivot bolts - see section XXXX." which turns out to be two
> extremely difficult to read photos and about a sentence.
>
> maybe i'll just burn the book instead.
>
> -bennett
>
> P.S. The AC is still all connected - it even blows when you turn it on
> - just not cold air. good thing i live in Minnesota. :/

Re: serpentine belt ('87 YJ)
 

Well, you have the odd ball 4.2 with the long belt. The manual is
referring to the V-belt engine, not yours.

You need to loosen the PS pump pivots and the bottom lock nut to loosen
a long set screw in the right hand side of the PS pump to loosen the
belt.

BUT! Why bother? I never loosen the belts when changing a waterpump.
I just pull out the pump and put the new one back in. The belt will
just go back to the same tightness it was before.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

bobvonbob wrote:
>
> hey all - '87 YJ w/PS and AC (non-working)... water pump been going bad
> for a few weeks and is now on its last legs - went to replace it today
> with the less than helpful Haynes manual as a general guide and ran
> into what seems to be a common problem - i was unable to loosen the
> serpentine belt. now i was attempting to loosen the alternator but
> after breaking every rusted old bolt loose on the damn thing it still
> wouldnt budge - looking at it only confused me further because altho
> there were clearly adjustment holes in the alternator bracket there
> doesnt appear to be any way to actually pivot the alternator! i just
> did a quick search on this in the list and found numerous references to
> similiar problems with the answer being that one must use an adjusting
> bolt on the back of the POWER STEERING PUMP bracket...
> but - since all of these posts were for much later model vehicles than
> mine i'd love a confirmation. i just cant bear to go out and look
> around under the hood right now. i was ready to set fire to the damn
> thing today after about 1.5 hours of hot sweaty dirty frustration...
>
> so - belt is slackened and adjusted via the power steering pump
> bracket?
> gotta love that haynes manual: "slacken belt by loosening alternator
> bracket pivot bolts - see section XXXX." which turns out to be two
> extremely difficult to read photos and about a sentence.
>
> maybe i'll just burn the book instead.
>
> -bennett
>
> P.S. The AC is still all connected - it even blows when you turn it on
> - just not cold air. good thing i live in Minnesota. :/

Re: serpentine belt ('87 YJ)
 

Well, you have the odd ball 4.2 with the long belt. The manual is
referring to the V-belt engine, not yours.

You need to loosen the PS pump pivots and the bottom lock nut to loosen
a long set screw in the right hand side of the PS pump to loosen the
belt.

BUT! Why bother? I never loosen the belts when changing a waterpump.
I just pull out the pump and put the new one back in. The belt will
just go back to the same tightness it was before.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

bobvonbob wrote:
>
> hey all - '87 YJ w/PS and AC (non-working)... water pump been going bad
> for a few weeks and is now on its last legs - went to replace it today
> with the less than helpful Haynes manual as a general guide and ran
> into what seems to be a common problem - i was unable to loosen the
> serpentine belt. now i was attempting to loosen the alternator but
> after breaking every rusted old bolt loose on the damn thing it still
> wouldnt budge - looking at it only confused me further because altho
> there were clearly adjustment holes in the alternator bracket there
> doesnt appear to be any way to actually pivot the alternator! i just
> did a quick search on this in the list and found numerous references to
> similiar problems with the answer being that one must use an adjusting
> bolt on the back of the POWER STEERING PUMP bracket...
> but - since all of these posts were for much later model vehicles than
> mine i'd love a confirmation. i just cant bear to go out and look
> around under the hood right now. i was ready to set fire to the damn
> thing today after about 1.5 hours of hot sweaty dirty frustration...
>
> so - belt is slackened and adjusted via the power steering pump
> bracket?
> gotta love that haynes manual: "slacken belt by loosening alternator
> bracket pivot bolts - see section XXXX." which turns out to be two
> extremely difficult to read photos and about a sentence.
>
> maybe i'll just burn the book instead.
>
> -bennett
>
> P.S. The AC is still all connected - it even blows when you turn it on
> - just not cold air. good thing i live in Minnesota. :/

Re: serpentine belt ('87 YJ)
 

thanks all - as usual i appreciate the help. bill - i looked at your
diagram but i think my set up is a bit different - i'm sure i dont have
two idler pullys - possibly one... i have to look underneath the power
steering pump and see.
mike - i'd love to not bother with the belt unfortunately i dont think
this belt has EVER been changed - its thouroughly cracked and this
seems like a good a time as any to change it.
one more question - i noticed that yesterday - after i had loosened all
the alternator bolts and pounded and pried on it for a while before
giving up and tightening all the bolts down again - i went for a drive
and noticed that my alternator output is lower - only about 12.75-13V -
down from about 14. hopefully only because the belt was loosened a
little from all my pulling on it, and i did notice that the alternator
shifted a bit when i loosened the bolts... so, i couldnt have damaged
it too much from the rather 'forceful' methods i employed right? i am
ashamed to say that i eventually even reached for the hammer... amatuer
hour. oh well - i suppose the alternator would either work or not if i
really damaged the stator... not just drop a volt or two - right?
you can tell what it is that i want to hear here...
thanks all. i'll tell you all how it goes...
bennett

Re: serpentine belt ('87 YJ)
 

thanks all - as usual i appreciate the help. bill - i looked at your
diagram but i think my set up is a bit different - i'm sure i dont have
two idler pullys - possibly one... i have to look underneath the power
steering pump and see.
mike - i'd love to not bother with the belt unfortunately i dont think
this belt has EVER been changed - its thouroughly cracked and this
seems like a good a time as any to change it.
one more question - i noticed that yesterday - after i had loosened all
the alternator bolts and pounded and pried on it for a while before
giving up and tightening all the bolts down again - i went for a drive
and noticed that my alternator output is lower - only about 12.75-13V -
down from about 14. hopefully only because the belt was loosened a
little from all my pulling on it, and i did notice that the alternator
shifted a bit when i loosened the bolts... so, i couldnt have damaged
it too much from the rather 'forceful' methods i employed right? i am
ashamed to say that i eventually even reached for the hammer... amatuer
hour. oh well - i suppose the alternator would either work or not if i
really damaged the stator... not just drop a volt or two - right?
you can tell what it is that i want to hear here...
thanks all. i'll tell you all how it goes...
bennett

Re: serpentine belt ('87 YJ)
 

thanks all - as usual i appreciate the help. bill - i looked at your
diagram but i think my set up is a bit different - i'm sure i dont have
two idler pullys - possibly one... i have to look underneath the power
steering pump and see.
mike - i'd love to not bother with the belt unfortunately i dont think
this belt has EVER been changed - its thouroughly cracked and this
seems like a good a time as any to change it.
one more question - i noticed that yesterday - after i had loosened all
the alternator bolts and pounded and pried on it for a while before
giving up and tightening all the bolts down again - i went for a drive
and noticed that my alternator output is lower - only about 12.75-13V -
down from about 14. hopefully only because the belt was loosened a
little from all my pulling on it, and i did notice that the alternator
shifted a bit when i loosened the bolts... so, i couldnt have damaged
it too much from the rather 'forceful' methods i employed right? i am
ashamed to say that i eventually even reached for the hammer... amatuer
hour. oh well - i suppose the alternator would either work or not if i
really damaged the stator... not just drop a volt or two - right?
you can tell what it is that i want to hear here...
thanks all. i'll tell you all how it goes...
bennett

Re: serpentine belt ('87 YJ)
 

thanks all - as usual i appreciate the help. bill - i looked at your
diagram but i think my set up is a bit different - i'm sure i dont have
two idler pullys - possibly one... i have to look underneath the power
steering pump and see.
mike - i'd love to not bother with the belt unfortunately i dont think
this belt has EVER been changed - its thouroughly cracked and this
seems like a good a time as any to change it.
one more question - i noticed that yesterday - after i had loosened all
the alternator bolts and pounded and pried on it for a while before
giving up and tightening all the bolts down again - i went for a drive
and noticed that my alternator output is lower - only about 12.75-13V -
down from about 14. hopefully only because the belt was loosened a
little from all my pulling on it, and i did notice that the alternator
shifted a bit when i loosened the bolts... so, i couldnt have damaged
it too much from the rather 'forceful' methods i employed right? i am
ashamed to say that i eventually even reached for the hammer... amatuer
hour. oh well - i suppose the alternator would either work or not if i
really damaged the stator... not just drop a volt or two - right?
you can tell what it is that i want to hear here...
thanks all. i'll tell you all how it goes...
bennett

Re: serpentine belt ('87 YJ)
 

I would keep an eye on the alternator output. Dropping a volt or so can
mean a diode died which will put more of an AC wave into the output and
lower the DC power.

It also could just mean the belt is slipping some too....

You will know when you change it. Did you locate the adjusting bolt for
the PS pump on the bottom right of it? Watch out for that damn lock
bolt!

Mike

bobvonbob wrote:
>
> thanks all - as usual i appreciate the help. bill - i looked at your
> diagram but i think my set up is a bit different - i'm sure i dont have
> two idler pullys - possibly one... i have to look underneath the power
> steering pump and see.
> mike - i'd love to not bother with the belt unfortunately i dont think
> this belt has EVER been changed - its thouroughly cracked and this
> seems like a good a time as any to change it.
> one more question - i noticed that yesterday - after i had loosened all
> the alternator bolts and pounded and pried on it for a while before
> giving up and tightening all the bolts down again - i went for a drive
> and noticed that my alternator output is lower - only about 12.75-13V -
> down from about 14. hopefully only because the belt was loosened a
> little from all my pulling on it, and i did notice that the alternator
> shifted a bit when i loosened the bolts... so, i couldnt have damaged
> it too much from the rather 'forceful' methods i employed right? i am
> ashamed to say that i eventually even reached for the hammer... amatuer
> hour. oh well - i suppose the alternator would either work or not if i
> really damaged the stator... not just drop a volt or two - right?
> you can tell what it is that i want to hear here...
> thanks all. i'll tell you all how it goes...
> bennett

Re: serpentine belt ('87 YJ)
 

I would keep an eye on the alternator output. Dropping a volt or so can
mean a diode died which will put more of an AC wave into the output and
lower the DC power.

It also could just mean the belt is slipping some too....

You will know when you change it. Did you locate the adjusting bolt for
the PS pump on the bottom right of it? Watch out for that damn lock
bolt!

Mike

bobvonbob wrote:
>
> thanks all - as usual i appreciate the help. bill - i looked at your
> diagram but i think my set up is a bit different - i'm sure i dont have
> two idler pullys - possibly one... i have to look underneath the power
> steering pump and see.
> mike - i'd love to not bother with the belt unfortunately i dont think
> this belt has EVER been changed - its thouroughly cracked and this
> seems like a good a time as any to change it.
> one more question - i noticed that yesterday - after i had loosened all
> the alternator bolts and pounded and pried on it for a while before
> giving up and tightening all the bolts down again - i went for a drive
> and noticed that my alternator output is lower - only about 12.75-13V -
> down from about 14. hopefully only because the belt was loosened a
> little from all my pulling on it, and i did notice that the alternator
> shifted a bit when i loosened the bolts... so, i couldnt have damaged
> it too much from the rather 'forceful' methods i employed right? i am
> ashamed to say that i eventually even reached for the hammer... amatuer
> hour. oh well - i suppose the alternator would either work or not if i
> really damaged the stator... not just drop a volt or two - right?
> you can tell what it is that i want to hear here...
> thanks all. i'll tell you all how it goes...
> bennett

Re: serpentine belt ('87 YJ)
 

I would keep an eye on the alternator output. Dropping a volt or so can
mean a diode died which will put more of an AC wave into the output and
lower the DC power.

It also could just mean the belt is slipping some too....

You will know when you change it. Did you locate the adjusting bolt for
the PS pump on the bottom right of it? Watch out for that damn lock
bolt!

Mike

bobvonbob wrote:
>
> thanks all - as usual i appreciate the help. bill - i looked at your
> diagram but i think my set up is a bit different - i'm sure i dont have
> two idler pullys - possibly one... i have to look underneath the power
> steering pump and see.
> mike - i'd love to not bother with the belt unfortunately i dont think
> this belt has EVER been changed - its thouroughly cracked and this
> seems like a good a time as any to change it.
> one more question - i noticed that yesterday - after i had loosened all
> the alternator bolts and pounded and pried on it for a while before
> giving up and tightening all the bolts down again - i went for a drive
> and noticed that my alternator output is lower - only about 12.75-13V -
> down from about 14. hopefully only because the belt was loosened a
> little from all my pulling on it, and i did notice that the alternator
> shifted a bit when i loosened the bolts... so, i couldnt have damaged
> it too much from the rather 'forceful' methods i employed right? i am
> ashamed to say that i eventually even reached for the hammer... amatuer
> hour. oh well - i suppose the alternator would either work or not if i
> really damaged the stator... not just drop a volt or two - right?
> you can tell what it is that i want to hear here...
> thanks all. i'll tell you all how it goes...
> bennett