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Old 08-04-2010, 07:04 AM
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Wiper motor shaft shortening

I just bought one of these to replace that nice expensive $125 Pacific Western Mighty Wiper motor that died after 4 strokes across the windshield (yes, with their fuse)

The instructions for the new motor are only electrical - I need to shorten the shaft and before I 'rip' it apart to separate the inner from the outer shaft, anything special that I should know?

Yeah - I know, simple job, but.......

Dave W

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Old 08-04-2010, 09:57 AM
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If it was me , I'd very carefully cut the outer threaded tube with a file or hacksaw first to the length you need and then cut the shaft . No dis-assembly needed this way . Not unlike shortening a choke cable . Should work . I have one of these wipers with the park position and remote switch . Works great !
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Old 08-04-2010, 10:29 AM
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I agree with adantessr, no need to take it apart. I would just suggest that you run one or two of the nuts down the threaded shaft BEFORE you cut it to length, that way when you take the nuts off they will straighten the thread.
Good Luck
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Old 08-04-2010, 10:51 AM
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You two were too late!! I gave you a whole hour

I took it apart - very easy and makes the mod look better.

Four screws on the front plate and that comes off along with the outer threaded housing. The inner driven shaft has an eccentric that pulls apart from the motor and leaves it loose. Then it's easy to cut to length based on what you measure for your car. Reassemble and mount. This way, no chips, and you can easily clean up the ends. This also give you a chance to spread the grease around instead of leaving a blob that isn't doing much inside of the motor.







It's not wired yet and I can't use that nice new switch I bought - it's too big for the place in my sub panel, so it will be a toggle switch control

I'm also not using the supplied too long wiper and arm and instead using an adjustable Big Al's version

Thanks for your replies

Dave W
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Old 08-04-2010, 11:09 AM
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Quote:
Originally Posted by Irelands child
You two were too late!! I gave you a whole hour

I took it apart - very easy and makes the mod look better.

Four screws on the front plate and that comes off along with the outer threaded housing. The inner driven shaft has an eccentric that pulls apart from the motor and leaves it loose. Then it's easy to cut to length based on what you measure for your car. Reassemble and mount. This way, no chips, and you can easily clean up the ends. This also give you a chance to spread the grease around instead of leaving a blob that isn't doing much inside of the motor.







It's not wired yet and I can't use that nice new switch I bought - it's too big for the place in my sub panel, so it will be a toggle switch control

I'm also not using the supplied too long wiper and arm and instead using an adjustable Big Al's version

Thanks for your replies

Dave W
KEWL lol . Looks just like I have it mounted on my T-bucket . Except mine is chrome . I just have a simple two wire push pull switch on mine . Takes up even less space than a toggle switch. Also I had to put a tab on the side to keep the torque from twisting the motor around .
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Old 08-04-2010, 11:16 AM
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Quote:
Originally Posted by adantessr
KEWL lol . Looks just like I have it mounted on my T-bucket . Except mine is chrome . I just have a simple two wire push pull switch on mine . Takes up even less space than a toggle switch. Also I had to put a tab on the side to keep the torque from twisting the motor around .


I didn't think another $10 for that SS case was worth it
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