AC stretch belt help please

[slime_bullet]

Put on a new ac stretch belt. Followed the shop manual to the T, but after slipping the belt on, it is seated perfect on the crank pully but off a rib on the compressor pully. Is there a way to readjust the belt one rib over on the compressor pully or do i need to cut the belt and redo? thanks in advance

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[Cory S]

You'll have to apply side pressure and lift under the belt on the compressor while rotating the crank bolt. It can be a pain, but can be done with 2 people and a screw driver shaft usually.

Think of it as an old bicycle chain.

 

[glockholiday]

Why can't you release some pressure from the tensioner and position it how you want?

 

[Cory S]

Why can't you release some pressure from the tensioner and position it how you want?

There is no tensioner for the AC compressor stretch belt. It's a stretch over install.

 

[Cobra Jet]

There is no tensioner for the AC compressor stretch belt. It's a stretch over install.

Which is a poor design...

Some M6G members have added the tensioner; here's the DIY of an additional belt tensioner to the Coyote which some say helps with the A/C issues:
https://www.mustang6g.com/forums/threads/uh-guys.113536/

 

[Ruiner46]

I found that this tool makes the stretch belt installation a lot easier.

https://www.lislecorp.com/specialty-tools/stretch-belt-remover-installer

It can be found cheaper on Amazon...

 

[Whitedevil95]

I literally just did this as well and had the same issue. I just kept turning the motor over and it slowly worked itself onto the Compressor. I also used a screw driver to give it some gentle side pressure as well. What a pita these stretch bels are though.

 

[Cobra Jet]

I found that this tool makes the stretch belt installation a lot easier.

https://www.lislecorp.com/specialty-tools/stretch-belt-remover-installer

It can be found cheaper on Amazon...

That's good to know a tool exists to assist with the R&R of a A/C stretch belt. I have quite a few Lisle tools, great Company and quality tools.

 

[slime_bullet]

I got it guys, thanks a ton! Used the old stretch belt, slid it over the new belt and held cross tension as the old belt went around the ac pully between the new belt and pully

 

[Mike Pfeifer]

The stretch belt is one of those things that takes a few times to really get the hang of. Do it a couple more times and you will be able to replace it in 5 minutes.

 

[Jessealanc]

does the lisle tool work on the coyote? there a very small space on the backside of the crank pully so it seems that u wouldnt be able to fit the tool behind there.

 

[Ruiner46]

does the lisle tool work on the coyote? there a very small space on the backside of the crank pully so it seems that u wouldnt be able to fit the tool behind there.

No, it didn't work for me on the AC side. I can't remember if I tried it on the crank pulley, but I have an ATI balancer. I forgot about this post and I should have deleted my recommendation. I bought the tool and didn't need to try it out for months, then when I went to use it, I couldn't make it work.

 

[CrackedHorn]

Old thread but in case anyone else comes across this same problem:



I used a zip tie wrapped around the belt and the sway bar to pull the belt towards the front of the car. I then turned the crank pulley and the belt aligned itself after 1/2 rotation or so.



Of course, you'll have to cut the zip tie off once the compressor turns enough if belt isn't aligned by then

 

[Zrussian13]

Old thread but in case anyone else comes across this same problem:



I used a zip tie wrapped around the belt and the sway bar to pull the belt towards the front of the car. I then turned the crank pulley and the belt aligned itself after 1/2 rotation or so.



Of course, you'll have to cut the zip tie off once the compressor turns enough if belt isn't aligned by then

Yeah this thread is super old but what I think he meant is after doing everything you mentioned above the belt went on the crank pulley but jumped a tooth on the ac pulley. I just had the same thing happen a week ago. I just put solid pressure on the ac pulley lower belt side and kept rotating the engine and it pulled over back into place and with a little effort.

 

[CrackedHorn]

Yeah this thread is super old but what I think he meant is after doing everything you mentioned above the belt went on the crank pulley but jumped a tooth on the ac pulley. I just had the same thing happen a week ago. I just put solid pressure on the ac pulley lower belt side and kept rotating the engine and it pulled over back into place and with a little effort.

Same problem I was describing. It was just easier for me to use a zip.tie

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