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Unread 09-05-2011, 10:10 AM   #1
ptwhaler
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AC Blower upgrade?

I think my blower motor might be going out. It's not blowing as hard and is surging a little. Are all the replacement motors the same as far as power goes or is it possible to get a motor that has a higher output than the original stock motor?

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Unread 09-05-2011, 10:25 AM   #2
uhohthe50
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You will want to do the upgrade to a blazer blower motor. There are write ups on it if you search for them. I did it to mine and it makes a big difference. Kind of a pain to do though because you have to pull out the dash and cut a bigger hole in the firewall for the motor to fit
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Unread 09-05-2011, 11:49 AM   #3
timatoe
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OP, I'm not aware of any upgrade for the A/C blower.

Quote:
Originally Posted by uhohthe50 View Post
You will want to do the upgrade to a blazer blower motor. There are write ups on it if you search for them. I did it to mine and it makes a big difference. Kind of a pain to do though because you have to pull out the dash and cut a bigger hole in the firewall for the motor to fit
The A/C and heater do not share a blower motor. The Blazer motor and the stock replacement YJ motor are now the same motor btw, Siemens PM102.
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Unread 09-05-2011, 01:21 PM   #4
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Quote:
Originally Posted by uhohthe50 View Post
You will want to do the upgrade to a blazer blower motor. There are write ups on it if you search for them. I did it to mine and it makes a big difference. Kind of a pain to do though because you have to pull out the dash and cut a bigger hole in the firewall for the motor to fit
I think you have the A/C confused with the heater.
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Unread 09-06-2011, 08:17 AM   #5
vadslram
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A/C????
What is this A/C you speak of?
When I need more cool air blowing I step hard on the skinny pedal, The only way to upgrade is os maybe bore and stroke the engine
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Unread 09-06-2011, 09:18 AM   #6
ptwhaler
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Quote:
Originally Posted by vadslram View Post
A/C????
What is this A/C you speak of?
When I need more cool air blowing I step hard on the skinny pedal, The only way to upgrade is os maybe bore and stroke the engine
AC is kind of a required item when you live in the Middle East and it is 120 outside during the day
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Unread 09-06-2011, 09:45 AM   #7
pasinbuy
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Quote:
Originally Posted by vadslram View Post
A/C????
What is this A/C you speak of?
When I need more cool air blowing I step hard on the skinny pedal, The only way to upgrade is os maybe bore and stroke the engine
Pretty funny, if I lived where you do I probably would not invest in AC either.

Since I live in the Sub Tropics with 80 to 90 percent humidity and 95 temps. AC is a must, my dogs like it too. With AC they get to go with me more often.
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Unread 09-06-2011, 11:36 AM   #8
Apollo12227
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Quote:
Originally Posted by pasinbuy View Post
Pretty funny, if I lived where you do I probably would not invest in AC either.

Since I live in the Sub Tropics with 80 to 90 percent humidity and 95 temps. AC is a must, my dogs like it too. With AC they get to go with me more often.
This, good ol' florida, and what is this 80 - 90% humidy your talking about lol? During the middle 2 months of summer we run at 100% humidity every day. This adds 8-12 degrees to the heat index which leaves a 97 degree day actually feeling like 106+ lol.

Anyway, I havn't heard of any reasonable upgrades for the YJ ac blower... I hunted around for options online quite a bit too. You can buy custom ac setups from Jeggs and Summit I believe, they are generic under-dash units just like the one we have but maybe they are better?

Just make sure your current system isn't leaking and that you have plenty of "ac fluid" in there lol.
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Unread 09-06-2011, 12:29 PM   #9
vadslram
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FL aint so bad, when I lived in St Augustine I drove a 1969 MG Midget. It had basically anti A/C. If you leaned you leg against the tranny tunnel it sizzled like bacon.
But I was young and stupid then..I'm not young any more.
Since you're in the sandbox though I guess a little freon modification is in order.
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Unread 09-06-2011, 07:40 PM   #10
czjeeper
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I would like to upgrade my fan as well.
It doesn't seem to blow as hard as it should.
I wonder if an electrical rebuild shop could modify it?
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Unread 09-08-2011, 07:12 AM   #11
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It's not the motor that needs upgrading it would be the whole unit would need to be replaced. A yj A/C is just enough to cool in the 100* or less that is to make bearable to drive. Now here is something you might want to do is pull the A/C blower out and give it a good cleaning and blow out the condenser or in another word a good maintenance cleanup of the whole system. Dry dusty air and moisture on the coils and blow squirrel cage. Gan make a good working system seem like crap when all clogged up.
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Unread 09-08-2011, 08:42 AM   #12
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I have 255 A/C! (2 doors off going down the road at 55)

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Unread 09-08-2011, 10:31 AM   #13
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I guess if the fan keeps working a couple more months until it cools down I will just let it wait until after the first of the year. It's too hot, and humid, right now to work on it so I'll let it ride. Summers here are blistering hot but the winter is nice. 75 to 80 during the day and down to about 60 or so at night so I will be using the 255 A/C then . Really wanted to get a soft top on it this winter but just don't have the fundage for that right now.
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