Serpentine Belt On 1991 W/Air?

Serpentine Belt On 1991 W/Air?

Postby Rock-N-Blues [OP] » September 14th 2017, 11:34pm

Hey All,
It seems that the serpentine belt on a 91 Astro may be different than the later models that most tutorials detail and sescribe. Any tips and/or links to such for a 91? On my 91, the tensioner is above and to the right (looking from the front of van) of the alternator and the fixed idler is below the alternator. It appears that on the later models, the tensioner pulley and fixed are opposite of this? Is the tensioner operated the same, with a 3/8" drive extension on a breaker bar? I can't seem to find the square hole!
TIA,
Gene
Last edited by Rock-N-Blues on September 14th 2017, 11:50pm, edited 1 time in total.
Original Poster [OP]
Rock-N-Blues
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: Rock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full years
Posts: 158
Topics: 26
Images: 5
Joined: September 2017
Location: Las Vegas, NV
Gender: Male
Alias (AKA): TheBallzz
Van Model Year: 1991
Van Make/Model: Chevrolet Astro
Extra Info: Base Short Cargo RWD

  • Similar topics
    Replies
    Views
    Author
  • New serpentine belt too tight
    by Denny B » January 6th 2021, 5:17pm in Engines
    6 Replies
    198 Views
    Last post by Denny B View the latest post
    January 7th 2021, 10:09pm
  • Should lower radiator hose be this close to belt?
    by Ken2.7 » February 22nd 2021, 11:47pm in Engines
    10 Replies
    339 Views
    Last post by sixsix View the latest post
    February 24th 2021, 4:56pm
  •  
    10
    77
    Last post by AstroSafari.com View the latest post
    April 13th 2021, 6:20pm

Re: Serpentine Belt On 1991 W/Air?

Postby AstroWill » September 14th 2017, 11:47pm

tutorial for?

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11732
Topics: 108
Images: 473
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: Serpentine Belt On 1991 W/Air?

Postby Rock-N-Blues [OP] » September 15th 2017, 12:02am

Sorry sir, tips/procedures/tutorial for changing the belt without damaging anything. As I've mentioned here, I'm not new to mechanical work, but as green as grass with the Astro vans and later model GM stuff, in general! I've been a F--D guy for the last 20 years, as well as all my regular rides being over 45 years old! My two main drivers are a 69 F250 and a 68 Mustang.
Thanks,
Gene
Original Poster [OP]
Rock-N-Blues
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: Rock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full years
Posts: 158
Topics: 26
Images: 5
Joined: September 2017
Location: Las Vegas, NV
Gender: Male
Alias (AKA): TheBallzz
Van Model Year: 1991
Van Make/Model: Chevrolet Astro
Extra Info: Base Short Cargo RWD

Re: Serpentine Belt On 1991 W/Air?

Postby Astrofarian » September 15th 2017, 1:56am

Hi Gene, welcome and nice to see you using the forum. Is there a belt routing diagram decal on the radiator support? I own a 91 and a 95 and can't recall seeing anything out of the ordinary to do with the serpentine belts or their tensioners. Any chance you could be overthinking this and/or downplaying your technical abilities? Take a closer look at the belt routing, draw a diagram detailing the path and try diving in. Short of you using a 12 lb sledge hammer and military grade C4 plastic explosives, there isn't much you could do to this thing that can't be put back right if this goes sideways on you.
-M!ke-
Move along....all is well.....return to your homes.....nothing to see here.
User avatar
Astrofarian
Firing on 6 Cylinders (L3)
Firing on 6 Cylinders (L3)
Years of Membership: Astrofarian has been a member for 7 full yearsAstrofarian has been a member for 7 full yearsAstrofarian has been a member for 7 full yearsAstrofarian has been a member for 7 full yearsAstrofarian has been a member for 7 full yearsAstrofarian has been a member for 7 full yearsAstrofarian has been a member for 7 full years
Posts: 2680
Topics: 14
Joined: February 2014
Location: R.M. of Armstrong, Manitoba, Canada
Gender: Male
Alias (AKA): M!ke
Van Model Year: 1995
Van Make/Model: Chevrolet Astro
Extra Info: Someday......

Re: Serpentine Belt On 1991 W/Air?

Postby Rock-N-Blues [OP] » September 15th 2017, 3:26am

Astrofarian wrote:Hi Gene, welcome and nice to see you using the forum. Is there a belt routing diagram decal on the radiator support? I own a 91 and a 95 and can't recall seeing anything out of the ordinary to do with the serpentine belts or their tensioners. Any chance you could be overthinking this and/or downplaying your technical abilities? Take a closer look at the belt routing, draw a diagram detailing the path and try diving in. Short of you using a 12 lb sledge hammer and military grade C4 plastic explosives, there isn't much you could do to this thing that can't be put back right if this goes sideways on you.
-M!ke-



Yes, routing decal is there and you're probably right about the overthinking part! :wave: I just don't like to dive in without preparation. The "STICKY" by "Chemist" at the top of this sub forum made it seem like a piece of cake, as far as releasing the tensioner, but I simply can't see how to properly release this tensioner on my 91! :confused: Unless that is the purpose of the 3/4' to 1" long hex on the front of the actual pulley on the tensioning arm? :shrug: Do I simply put a long wrench on that hex to use for leverage against the spring in the tensioning arm?
IMG_0209.JPG
IMG_0210.JPG


Thanks,
Gene
Original Poster [OP]
Rock-N-Blues
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: Rock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full years
Posts: 158
Topics: 26
Images: 5
Joined: September 2017
Location: Las Vegas, NV
Gender: Male
Alias (AKA): TheBallzz
Van Model Year: 1991
Van Make/Model: Chevrolet Astro
Extra Info: Base Short Cargo RWD

Re: Serpentine Belt On 1991 W/Air?

Postby AstroWill » September 15th 2017, 3:31am

Rock-N-Blues wrote:Do I simply put a long wrench on that hex to use for leverage against the spring in the tensioning arm?

Yes sir.

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11732
Topics: 108
Images: 473
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: Serpentine Belt On 1991 W/Air?

Postby M_a_t_t » September 15th 2017, 3:36am

It is reverse threaded. So when you pull on it to release tension on the belt it will be tightening. Which BTW, if the pulley itself starts to squeal, you can just get a regular idler pulley and swap it out.
1973 Fiat 124 Special
1975 Honda Civic CVCC 4spd
1981 Kawasaki KZ750E
1981 Kawasaki KZ650 CSR
1983 Kawasaki KZ1100-A3
1986 Nissan 300zx Turbo 5 spd
1995 Chevy Astro RWD
1995 Mercury Tracer
2004 Chevy Astro AWD
2017 Kawasaki VersysX 300
User avatar
M_a_t_t
V8 Swap Achievement
V8 Swap Achievement
Firing on 6 Cylinders (L1)
Firing on 6 Cylinders (L1)
Years of Membership: M_a_t_t has been a member for 6 full yearsM_a_t_t has been a member for 6 full yearsM_a_t_t has been a member for 6 full yearsM_a_t_t has been a member for 6 full yearsM_a_t_t has been a member for 6 full yearsM_a_t_t has been a member for 6 full years
Posts: 638
Topics: 27
Images: 96
Joined: January 2015
Alias (AKA):
Van Model Year: 1995
Van Make/Model: Chevrolet Astro
Extra Info: cl rwd

Re: Serpentine Belt On 1991 W/Air?

Postby Rock-N-Blues [OP] » September 15th 2017, 3:40am

Well, isn't that "special?" Thanks for confirming what should have been obvious to all except an anal, OCD idiot like me! I just didn't want to undo some high tension spring that could pop/fly off taking one of my guitar playin' fingers with it! I've protected them for 62 years and it would really suck to mess up now in my last few years of being able to rock!
Thanks Again,
Gene
Original Poster [OP]
Rock-N-Blues
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: Rock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full yearsRock-N-Blues has been a member for 3 full years
Posts: 158
Topics: 26
Images: 5
Joined: September 2017
Location: Las Vegas, NV
Gender: Male
Alias (AKA): TheBallzz
Van Model Year: 1991
Van Make/Model: Chevrolet Astro
Extra Info: Base Short Cargo RWD


 
  • Related topics
    Replies
    Views
    Last post

Return to Engines

It is currently April 13th 2021, 6:20pm

Engines Forum
Engine Repairs, Modifications, Diagnostics, Tuning, Upgrading, Questions.

<a href="https://ad.doubleclick.net/ddm/trackclk/N8334.275400VERTICALSCOPEINC./B20209277.204028354;dc_trk_aid=407011718;dc_trk_cid=94070067;dc_lat=;dc_rdid=;tag_for_child_directed_treatment="target="_blank"><img src="https://tpc.googlesyndication.com/pagead/imgad?id=CICAgKDrrqWwMRCAARgcKAEyCN4sAjjtai4k" border="0" align="right">
<IMG SRC="https://ad.doubleclick.net/ddm/trackimp/N8334.275400VERTICALSCOPEINC./B20209277.204028354;dc_trk_aid=407011718;dc_trk_cid=94070067;ord=;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=?" BORDER="0" HEIGHT="1" WIDTH="1" ALT="Advertisement">
Moderator: chevy57bert
To create a new topic in Engines, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
kvargas1356
in Engines
Views: 69
Comments: 1
Date: Apr 11 '21
Time: 10:20pm
» Read last comment
Attached by:
Attached by: jfunkngroove
jfunkngroovejfunkngroove is online!
in Engines
Views: 231
Comments: 17
Date: Apr 10 '21
Time: 10:38pm
» Read last comment
Attached by:
Attached by: Mmusicman
Mmusicman
in Engines
Views: 77
Comments: 3
Date: Apr 08 '21
Time: 8:52pm
» Read last comment
Attached by:
Attached by: jfunkngroove
jfunkngroovejfunkngroove is online!
in Engines
Views: 231
Comments: 17
Date: Apr 08 '21
Time: 1:55am
» Read last comment
Attached by:
Attached by: Mmusicman
Mmusicman
in Engines
Views: 275
Comments: 7
Date: Mar 22 '21
Time: 2:11pm
» Read last comment
Sponsors

Who is online

Users browsing this forum: No registered users and 20 guests