• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Belt Problems! Help!

  • Thread starter Thread starter blzitup
  • Start date Start date Dec 23, 2003
B

blzitup

Founding Member
Jan 24, 2002
150
0
0
Dec 23, 2003
#1
  • Dec 23, 2003
  • #1
I ordered a set of ASP Pulleys (alt, water, and crank) and i could not run the belt under the idler pulley up top. I have already had the belt jump off 2 times........

What length of belt do i need to run it under the idler pulley so the belt doesn't jump off.

***It only jumps off when i hit it.


THANKS
 

mo_dingo

20+ Year Stangneter
Aug 26, 2003
3,031
2
58
Tucson, AZ
Dec 23, 2003
#2
  • Dec 23, 2003
  • #2
blzitup said:
I ordered a set of ASP Pulleys (alt, water, and crank) and i could not run the belt under the idler pulley up top. I have already had the belt jump off 2 times........

What length of belt do i need to run it under the idler pulley so the belt doesn't jump off.

***It only jumps off when i hit it.


THANKS
Click to expand...

Does ASP say you can run the same belt? If you are supposed to, then you ran the belt incorrectly. Check the belt diagram.

You usually can't w/ underdrives. They should tell you what belt to use.
Scott
 

94GTLaserRC

Squint as you approach, lest you be blinded by my
15 Year Member
May 7, 2002
11,178
13
89
Ernan Says "here it comes... dushbag"
Dec 23, 2003
#3
  • Dec 23, 2003
  • #3
The TOTAL diameter in the set of 3 underdrives is supposed to be identical to the total of the 3 stock. Therefore you usually dont need a new belt. You gotta check your tensioner and see where the notch lines up.
RC
 

viperos

New Member
May 19, 2003
2,943
0
0
Bellevue, WA (yes, the land where every 16 year o
Dec 24, 2003
#4
  • Dec 24, 2003
  • #4
well, I put a set of ASPs on, and couldn't run the stock belt, you are supposed to, but Iwasn't... so I just removed the idler pulley completely... haven't had a problem at all, and this is after a full season at PR going twice a week, and driving it as a daily driver for the last 4 months, no problem what-so-ever... I know it's not good, but it's worked just fine for me...

-although, I was the only one anyone has ever heard of who had to remove the pulley, or get a larger belt...

-oh well, no one can explain me running a 14.19 w/ CAI and pulleys only either
 

Black 93 Fox

Active Member
Jun 1, 2003
1,995
0
49
Vancouver,Washington
Dec 24, 2003
#5
  • Dec 24, 2003
  • #5
I just bought the same pulleys last week and put them on i couldnt use the belt on there cause it was streched out too big. so i went and got a stock one fit just fine.
 

94GTLaserRC

Squint as you approach, lest you be blinded by my
15 Year Member
May 7, 2002
11,178
13
89
Ernan Says "here it comes... dushbag"
Dec 24, 2003
#6
  • Dec 24, 2003
  • #6
Check your pulley tensioner knob and see where it lines up.
RC
 
B

blzitup

Founding Member
Jan 24, 2002
150
0
0
Dec 24, 2003
#7
  • Dec 24, 2003
  • #7
where is the tensioner supposed to be lined up at? If thats bad, how much and where can i get another one at?

I dont think its the tensioner because the belt is tight.....its just not ran under the idler pulley.

THANKS FOR THE HELP GUYS
 

94GTLaserRC

Squint as you approach, lest you be blinded by my
15 Year Member
May 7, 2002
11,178
13
89
Ernan Says "here it comes... dushbag"
Dec 24, 2003
#8
  • Dec 24, 2003
  • #8
blzitup said:
where is the tensioner supposed to be lined up at? If thats bad, how much and where can i get another one at?

I dont think its the tensioner because the belt is tight.....its just not ran under the idler pulley.

THANKS FOR THE HELP GUYS
Click to expand...


THe notch should be between the two lines...If the notch is to the right of the right line...the belt is too long.

If the notch is to the left of the left line, belt is too tight. Having the notch in the middle means the belt is just the right tightness to allow the tensioner to adjust accordingly as the the pulleys spin.

RC
 

Attachments

  • 437882Tensioner.webp
    60 KB · Views: 154
G

Green 94 5.0

Founding Member
Mar 25, 2002
2,601
12
79
Ft. Lauderdale, FL
Dec 24, 2003
#9
  • Dec 24, 2003
  • #9
when i had my asp pulleys, the stock belt worked just fine.....
 

94GTLaserRC

Squint as you approach, lest you be blinded by my
15 Year Member
May 7, 2002
11,178
13
89
Ernan Says "here it comes... dushbag"
Dec 24, 2003
#10
  • Dec 24, 2003
  • #10
Green 94 5.0 said:
when i had my asp pulleys, the stock belt worked just fine.....
Click to expand...
Hey Rog...I think we're still on for Saturday. Jose wants to drop by. He is ready to "START THE CAR" today.
I got the FP line remover, Black RTV, Both gaskets, and some more Water Wetter.


Ill call you Friday.
RC
 
G

Green 94 5.0

Founding Member
Mar 25, 2002
2,601
12
79
Ft. Lauderdale, FL
Dec 24, 2003
#11
  • Dec 24, 2003
  • #11
cool.....
 
You must log in or register to reply here.

Similar threads

S
Engine Belt routing with supercharger and smog/ac/ps delete
  • Steve6482
  • Jul 15, 2026
  • Fox 5.0 Mustang Tech
Replies
0
Views
57
Fox 5.0 Mustang Tech Jul 15, 2026
Steve6482
S
B
Idler pulley as substitute for Power Steering Pump ?
  • Bhenders
  • Jul 15, 2026
  • Other Auto Tech
Replies
5
Views
134
Other Auto Tech Jul 16, 2026
LILCBRA
Engine My Gates K060845 (85 1/4”) belt doesn’t fit
  • Mcmahst
  • Jun 26, 2025
  • Fox 5.0 Mustang Tech
Replies
17
Views
612
Fox 5.0 Mustang Tech Jun 27, 2025
Mcmahst
Fox won't crank over and fuel pump won't kick on.
  • djj62478
  • Jun 7, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
16
Views
364
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 11, 2026
General karthief
Y
Engine 1994 Ford Mustang Gt Rod Knock/Stuck Lifter
  • yaboity
  • Jun 7, 2025
  • 1994 - 1995 Specific Tech
Replies
2
Views
279
1994 - 1995 Specific Tech Jun 8, 2025
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?