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Engine 2v mustang gt serpentine belt

  • Thread starter Thread starter Hugos2v
  • Start date Start date Jun 5, 2019
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Hugos2v

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#1
  • Jun 5, 2019
  • #1
Hey I had a question concerning my 2000 mustang gt I was recently on the freeway when I lost steering, car started overheating I pulled over I saw the serpentine belt had shredded into pieces towed the car back bought a motor craft serpentine belt from lmr put it on and the belt is to loose and I can’t figure why if anyone can help me I already replaced the belt tensioner?
 

wmburns

SN Certified Technician
Aug 14, 2009
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Houston Texas
Jun 5, 2019
#2
  • Jun 5, 2019
  • #2
Can you post of picture of HOW the belt was routed?
 
H

Hugos2v

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#3
  • Jun 5, 2019
  • #3
wmburns said:
Can you post of picture of HOW the belt was routed?
Click to expand...
 

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wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jun 6, 2019
#4
  • Jun 6, 2019
  • #4
Has this car had a motor swap? Perhaps Windsor to Romeo swap?

What length belt has been used? 91.54" or 93.50"?

If the 93.50" length has been used then try the shorter belt.

OR.. the longer belt might be able to be used IF the idler pulleys are reconfigured. The longer belt uses a smooth idler pulley in the first position counter clock wise from the alternator. Then onto a ribbed pulley further down the timing cover.

Here's some information that may help you to understand the slight difference in routing. Note, there could also be a difference in the tensioner as well.

police motor motor swap, just a few specific questions

im getting a police motor from a 2004 interceptor and the trans from it (it was just rebuilt so it only has 2,500 miles on the trans) and just wondering what specifically do i need to get to complete the swap. the pi swap guide has been helpful but the specific questions i have area: what...
www.allfordmustangs.com
 
Last edited: Jun 6, 2019
H

Hugos2v

New Member
Jun 5, 2019
12
0
1
Los Angeles
Jun 6, 2019
#5
  • Jun 6, 2019
  • #5
wmburns said:
Has this car had a motor swap? Perhaps Windsor to Romeo swap?

What length belt has been used? 91.54" or 93.50"?

If the 93.50" length has been used then try the shorter belt.

OR.. the longer belt might be able to be used IF the idler pulleys are reconfigured. The longer belt uses a smooth idler pulley in the first position counter clock wise from the alternator. Then onto a ribbed pulley further down the timing cover.

Here's some information that may help you to understand the slight difference in routing. Note, there could also be a difference in the tensioner as well.

police motor motor swap, just a few specific questions

im getting a police motor from a 2004 interceptor and the trans from it (it was just rebuilt so it only has 2,500 miles on the trans) and just wondering what specifically do i need to get to complete the swap. the pi swap guide has been helpful but the specific questions i have area: what...
www.allfordmustangs.com
Click to expand...
wmburns said:
Has this car had a motor swap? Perhaps Windsor to Romeo swap?

What length belt has been used? 91.54" or 93.50"?

If the 93.50" length has been used then try the shorter belt.

OR.. the longer belt might be able to be used IF the idler pulleys are reconfigured. The longer belt uses a smooth idler pulley in the first position counter clock wise from the alternator. Then onto a ribbed pulley further down the timing cover.

Here's some information that may help you to understand the slight difference in routing. Note, there could also be a difference in the tensioner as well.

police motor motor swap, just a few specific questions

im getting a police motor from a 2004 interceptor and the trans from it (it was just rebuilt so it only has 2,500 miles on the trans) and just wondering what specifically do i need to get to complete the swap. the pi swap guide has been helpful but the specific questions i have area: what...
www.allfordmustangs.com
Click to expand...
i am not sure if the car has been swapped from Windsor to Romeo I can’t seem to find the 91.54 belt
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jun 6, 2019
#6
  • Jun 6, 2019
  • #6
Here's an example from RockAuto.

ACDELCO 6K915
More Information for ACDELCO 6K915
 
H

Hugos2v

New Member
Jun 5, 2019
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1
Los Angeles
Jun 6, 2019
#7
  • Jun 6, 2019
  • #7
wmburns said:
Here's an example from RockAuto.

ACDELCO 6K915
More Information for ACDELCO 6K915
Click to expand...
 

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Hugos2v

New Member
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Jun 6, 2019
#8
  • Jun 6, 2019
  • #8
That’s the one I bought
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jun 6, 2019
#9
  • Jun 6, 2019
  • #9
Just wondering. Did you happen to look information about the alternate belt routing? Did you note the different arrangement of ribbed and smooth pulleys?

On my 2000 Mustang GT when I did the Windsor to Romeo swap I had the same issue occur with the belt being too long. In my case there were a ton of left over parts since I had two motors. Well it was easy to move the ribbed idler pulley to another timing cover mounting location and then add a smooth idler pulley following the diagram.

The belt that I had fit fine. It's been this way for more than 100K miles now.

After the motor swap I always use the parts list for a 2001 Mustang GT.
 
Last edited: Jun 6, 2019
H

Hugos2v

New Member
Jun 5, 2019
12
0
1
Los Angeles
Jun 6, 2019
#10
  • Jun 6, 2019
  • #10
wmburns said:
Just wondering. Did you happen to look information about the alternate belt routing? Did you note the different arrangement of ripped and smooth pulleys?

On my 2000 Mustang GT when I did the Windsor to Romeo swap I had the same issue occur with the belt being too long. In my case there were a ton of left over parts since I had two motors. Well it was easy to move the ribbed idler pulley to another timing cover mounting location and then add a smooth idler pulley following the diagram.

The belt that I had fit fine. It's been that way for more than 100K miles now.
Click to expand...
Do you happen to have a picture of how you routed your swap?
 
H

Hugos2v

New Member
Jun 5, 2019
12
0
1
Los Angeles
Jun 6, 2019
#11
  • Jun 6, 2019
  • #11
wmburns said:
Just wondering. Did you happen to look information about the alternate belt routing? Did you note the different arrangement of ripped and smooth pulleys?

On my 2000 Mustang GT when I did the Windsor to Romeo swap I had the same issue occur with the belt being too long. In my case there were a ton of left over parts since I had two motors. Well it was easy to move the ribbed idler pulley to another timing cover mounting location and then add a smooth idler pulley following the diagram.

The belt that I had fit fine. It's been that way for more than 100K miles now.
Click to expand...
 

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wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jun 6, 2019
#12
  • Jun 6, 2019
  • #12
Hugos2v said:
Do you happen to have a picture of how you routed your swap?
Click to expand...
I gave you a diagram in the linked information. It also matches the routing in your post above.

In one of the pictures I can see the alternate pulley mounting point just behind the AC muffler. That's would be where the ribbed pulley would go. A smooth pulley would go in the current ribbed pulley location.

GATES 38006
More Information for GATES 38006

I don't know what else I can tell you. Either get the shorter belt or add the extra pulley. Ford makes slight changes all the time for various reasons. I suspect the changed routing was done to improve contact area around the alternator pulley. Further it happens all the time where the database has part errors.

I have even had parts stores send the wrong part. I have even had it happen where the label on the outside match the correct part but there was a different part on the inside of the box.

Another possibility. Does your car have under drive pulleys? If so this might be a clue to the mystery why it is not fitting.

Or go to your local autoparts store and have the current belt measured. Try a shorter size.
 
Last edited: Jun 6, 2019
H

Hugos2v

New Member
Jun 5, 2019
12
0
1
Los Angeles
Jun 7, 2019
#13
  • Jun 7, 2019
  • #13
wmburns said:
I gave you a diagram in the linked information. It also matches the routing in your post above.

In one of the pictures I can see the alternate pulley mounting point just behind the AC muffler. That's would be where the ribbed pulley would go. A smooth pulley would go in the current ribbed pulley location.

GATES 38006
More Information for GATES 38006

I don't know what else I can tell you. Either get the shorter belt or add the extra pulley. Ford makes slight changes all the time for various reasons. I suspect the changed routing was done to improve contact area around the alternator pulley. Further it happens all the time where the database has part errors.

I have even had parts stores send the wrong part. I have even had it happen where the label on the outside match the correct part but there was a different part on the inside of the box.

Another possibility. Does your car have under drive pulleys? If so this might be a clue to the mystery why it is not fitting.

Or go to your local autoparts store and have the current belt measured. Try a shorter size.
Click to expand...
I added the pulley and it worked thank you so much
 

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H

Hugos2v

New Member
Jun 5, 2019
12
0
1
Los Angeles
Jun 8, 2019
#14
  • Jun 8, 2019
  • #14
wmburns said:
I gave you a diagram in the linked information. It also matches the routing in your post above.

In one of the pictures I can see the alternate pulley mounting point just behind the AC muffler. That's would be where the ribbed pulley would go. A smooth pulley would go in the current ribbed pulley location.

GATES 38006
More Information for GATES 38006

I don't know what else I can tell you. Either get the shorter belt or add the extra pulley. Ford makes slight changes all the time for various reasons. I suspect the changed routing was done to improve contact area around the alternator pulley. Further it happens all the time where the database has part errors.

I have even had parts stores send the wrong part. I have even had it happen where the label on the outside match the correct part but there was a different part on the inside of the box.

Another possibility. Does your car have under drive pulleys? If so this might be a clue to the mystery why it is not fitting.

Or go to your local autoparts store and have the current belt measured. Try a shorter size.
Click to expand...
Quick question when you added the grooved pulley under the smooth pulley does the groove pulley spin?
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jun 8, 2019
#15
  • Jun 8, 2019
  • #15
Hugos2v said:
Quick question when you added the grooved pulley under the smooth pulley does the groove pulley spin?
Click to expand...
IF the belt is passing over a pulley (grooved or not) the pulley MUST spin. If not, the belt would be dragged over the pulley and would quickly burn up.
 
H

Hugos2v

New Member
Jun 5, 2019
12
0
1
Los Angeles
Jun 8, 2019
#16
  • Jun 8, 2019
  • #16
wmburns said:
IF the belt is passing over a pulley (grooved or not) the pulley MUST spin. If not, the belt would be dragged over the pulley and would quickly burn up.
Click to expand...
Yeah I’m not sure what it is but the grooved pulley and the pulley under are not spinning I already re routed
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Jun 10, 2019
#17
  • Jun 10, 2019
  • #17
Hugos2v said:
Yeah I’m not sure what it is but the grooved pulley and the pulley under are not spinning I already re routed
Click to expand...
Look at the washer to see if the outer edge of the washer is contacting the outer race of the bearing. To work correctly the inner race needs to be the sole method of support and contact with the motor.
 
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