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Unread 10-02-2011, 09:50 PM   #226
Skerr
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Quote:
Originally Posted by FLynes View Post
One of the things I've been trying to do is find a suitable replacement for the 1976 heater blower motor. I took measurements of the motor and started searching, and I think I hit the nail on the head.

The shaft diameter is 5/16", the shaft length is 1 1/4", the case length is 3" and the studs are 2 5/16" on center. What I found seems to be a dead ringer with part number GR-315 on http://www.heco.net but I couldn't get a price, so I googled GR-315 and found the part here for $26.95: http://www.apartswarehouse.com/ShowProduct.aspx?ID=478

Unless someone sees a flaw in my research, I'm going to order it, to replace my original motor. The blower wheel is still in perfect shape, so no need to replace that.

The alternative is to send the motor to its manufacturer, LN Electric Motors, Ltd., in North York, Ontario, and have them rewind it.
Fred, are you bypassing the Blazer blower motor upgrade?? How come?? I'm not on the same page!

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Unread 10-03-2011, 07:23 AM   #227
FLynes
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Quote:
Originally Posted by Skerr View Post
Fred, are you bypassing the Blazer blower motor upgrade?? How come?? I'm not on the same page!
Scott,

My understanding is that the Blazer blower motor upgrade won't work for the '76, since my motor is under the dash, inside the tub, not in the engine compartment. I need a motor that runs CCW, and I thought I read that the Blazer motor runs CW.

Am I incorrect in my research? Don't get me wrong, I'm all for having more heat, when I need it, and my part of Texas does get chilly in the winter.
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Unread 10-03-2011, 07:52 AM   #228
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Fred,just a thought on the Blazer motor. I don't know if this would work, or if it would damage the motor, or even fit. That being said, if the motor was not grounded in any way to the Jeep, reversing the polarity of the DC motor would make it run in the opposite direction.
You could always pick one up, for the fitment, and maybe PM John Strenk (sp).
Bill
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1957 WILLYS pickup, needs work.
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac trail Jeep.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7 pretty weekend and sometimes to work Driver in the summer, My first rebuild, if the Q-trac and 5 are broke, this one is the one to take. its just as capable as the other 2, except nice paint.
1984 Grand Wagoneer, 1 ton axles, great 360/727, and a big a$& tree fell on it .
1989 YJ the CJ to YJ conversion.
2005 TJ Rubicon.
2011 Grand Cherokee Laredo 4x4, Mrs. LUCDOG's DD.
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Unread 10-03-2011, 08:03 AM   #229
FLynes
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Quote:
Originally Posted by lucdog View Post
Fred,just a thought on the Blazer motor. I don't know if this would work, or if it would damage the motor, or even fit. That being said, if the motor was not grounded in any way to the Jeep, reversing the polarity of the DC motor would make it run in the opposite direction.
You could always pick one up, for the fitment, and maybe PM John Strenk (sp).
Bill
Yeah, I didn't even think about the fitment issue either....the Blazer motor would need some reworking. I remember trying to search on this topic some time ago, when the CJ was still together and couldn't find anything pertaining to the '76.

I love having a bastard year.
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Black Wellington Vinyl Bench Seats
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Unread 10-03-2011, 11:21 AM   #230
Skerr
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Quote:
Originally Posted by FLynes View Post
Scott,

My understanding is that the Blazer blower motor upgrade won't work for the '76, since my motor is under the dash, inside the tub, not in the engine compartment. I need a motor that runs CCW, and I thought I read that the Blazer motor runs CW.

Am I incorrect in my research? Don't get me wrong, I'm all for having more heat, when I need it, and my part of Texas does get chilly in the winter.
Don't know, Fred! Outside of my Jeep years (79 and 85) I don't know much. You are probably correct about your research. I was "worried" that maybe you hadn't heard about that upgrade, so I was mentioning it. Sounds to me like you covered it.

Quote:
Originally Posted by lucdog View Post
Fred,just a thought on the Blazer motor. I don't know if this would work, or if it would damage the motor, or even fit. That being said, if the motor was not grounded in any way to the Jeep, reversing the polarity of the DC motor would make it run in the opposite direction.
You could always pick one up, for the fitment, and maybe PM John Strenk (sp).
Bill
Just a thought... you would, I think, have to flip the impeller, or it would draw air instead of push.
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Unread 10-03-2011, 11:31 AM   #231
Jeepican
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Yes the blazer will not work without heavy modification..... You can however check this thread out...

http://www.jeepforum.com/forum/f8/76...pgrade-879772/
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Unread 10-03-2011, 11:57 AM   #232
FLynes
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Quote:
Originally Posted by Jeepican View Post
Yes the blazer will not work without heavy modification..... You can however check this thread out...

http://www.jeepforum.com/forum/f8/76...pgrade-879772/
This is why I love you guys! I may have just killed two birds with one stone....I'll be able to use the 78-83 NOS underdash harness I bought off of eBay.
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Unread 10-03-2011, 12:02 PM   #233
lucdog
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Scott's post made me think, no the squirrel cage/impelled would not have to be flipped around, if the polarity is reversed on the motor. What I'm thinking about is the squirrel cage fitting the shaft of the new motor.
Bill
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1957 WILLYS pickup, needs work.
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac trail Jeep.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7 pretty weekend and sometimes to work Driver in the summer, My first rebuild, if the Q-trac and 5 are broke, this one is the one to take. its just as capable as the other 2, except nice paint.
1984 Grand Wagoneer, 1 ton axles, great 360/727, and a big a$& tree fell on it .
1989 YJ the CJ to YJ conversion.
2005 TJ Rubicon.
2011 Grand Cherokee Laredo 4x4, Mrs. LUCDOG's DD.
Lots of parts not for sale, i'm a hoarder.
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Unread 10-03-2011, 02:10 PM   #234
FLynes
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Quote:
Originally Posted by lucdog View Post
Scott's post made me think, no the squirrel cage/impelled would not have to be flipped around, if the polarity is reversed on the motor. What I'm thinking about is the squirrel cage fitting the shaft of the new motor.
Bill
As long as the shaft of the new motor is 5/16", it won't be an issue.
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Fred
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High Plains Drifter
1976 CJ-5
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Black Wellington Vinyl Bench Seats
258 I-6 1bbl
T-150 3-Speed
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Unread 10-04-2011, 07:11 AM   #235
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Quote:
Originally Posted by FLynes View Post
As long as the shaft of the new motor is 5/16", it won't be an issue.
You could even use a bushing on the fan shaft if you need to as well Fred. The fan upgrade is a great thing to do.
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Unread 10-04-2011, 10:04 PM   #236
Splinter
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Subscribed Fred, when you get to the tub will you be notching the driver's side wheel well to be able to move the seat further back? Oh ya and I love the pics,
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Unread 10-04-2011, 10:26 PM   #237
FLynes
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Subscribed Fred, when you get to the tub will you be notching the driver's side wheel well to be able to move the seat further back? Oh ya and I love the pics,
Nope, leaving everything as it was, when it left the dealership in 1975. I'm 6'1", and I fit just fine in it, with the seat all the way back.
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Fred
Retired Army Guy

High Plains Drifter
1976 CJ-5
Lime Green
Black Wellington Vinyl Bench Seats
258 I-6 1bbl
T-150 3-Speed
3.54:1 Open Gears

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Unread 10-06-2011, 06:03 PM   #238
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I took the heater motor to an auto electric shop today and had the guy test it...spun like a top. He told me to leave it alone and simply oil it at the shaft. I got home and decided to restore it, so I got my drill out and hooked up a scuff pad to it and went to town...here are the results.

I'm going to have Office Max make me some stamps, so I can reproduce the dates and numbers on the Jeep. You'll notice the number 2 on the motor.
hpim2425.jpg   hpim2426.jpg   hpim2427.jpg   hpim2428.jpg   hpim2429.jpg  

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Fred
Retired Army Guy

High Plains Drifter
1976 CJ-5
Lime Green
Black Wellington Vinyl Bench Seats
258 I-6 1bbl
T-150 3-Speed
3.54:1 Open Gears

Grammar Test
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Unread 10-06-2011, 06:05 PM   #239
FLynes
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I hope that the pics give someone else the info needed to do this, but it's pretty straight forward. Taking the old paint off was easy.
hpim2430.jpg   hpim2431.jpg   hpim2432.jpg   hpim2433.jpg   hpim2434.jpg  

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Fred
Retired Army Guy

High Plains Drifter
1976 CJ-5
Lime Green
Black Wellington Vinyl Bench Seats
258 I-6 1bbl
T-150 3-Speed
3.54:1 Open Gears

Grammar Test
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Unread 10-06-2011, 06:07 PM   #240
FLynes
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The finished product.

The 3M scuff pad and Duplicolor Gloss Black worked really well for this project. Very simple to do, and only took about an hour, including retaping the red and orange wires together.
hpim2435.jpg   hpim2436.jpg   hpim2437.jpg   hpim2438.jpg   hpim2439.jpg  

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Fred
Retired Army Guy

High Plains Drifter
1976 CJ-5
Lime Green
Black Wellington Vinyl Bench Seats
258 I-6 1bbl
T-150 3-Speed
3.54:1 Open Gears

Grammar Test
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