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| OEM Wiper Motor Update [message #217211] |
Tue, 06 August 2013 18:21  |
Galen
Messages: 146
Registered: November 2011
Location: New Virginia, IA
Karma: 0
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Senior Member |
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So yesterday my wipers were stuck on after I replaced the high pressure lines and removed the inlet nipple and found out my nipple screen had been removed by some previous owner. I got an inline filter from Carquest today - I got a part number from this site but they didn't have it. I had them find another one with 5/16 inlet/outlets. Just ask for a transmission inline filter and make sure you install it on the outlet line and not the inlet, because these filters aren't rated high enough for the supply side.
EDIT: powerjon suggested Carquest TFK 85953. I was able to get 85964 so that's what I bought. Thanks Jon.
That didn't fix it, but I feel better with the filter anyway. On the driver's side of the wiper motor is a large threaded cap fitting. I removed this and pulled the valve, spring and ball (careful, there are 2 springs, a small 1/8" ball and a brass plunger) and cleaned this bore. That didn't fix it, and I found no debris.
Then I removed the inlet nipple and with a mechanics/dental mirror watched the inner valve rod as I moved the control lever. I could see that when it was fully closed, it didn't appear that the rod had traveled the full distance. If you look at this you will know what I mean. No pics; my wife would kill me if I got power steering fluid on her camera, and she wasn't home.
With nothing to lose, I used a small screwdriver to move the rod fully to the passenger side (closing the motor valve completely). Put it back together and now it seems to work fine after dozens of on off cycles.
My theory is that when I reconnected my inlet I did not have the valve fully closed and caused the valve to hyrdo lock, not fully actuating.
Time will tell if its fixed, but my money says it's good to go. Just thought I'd post this in case someone else has a similar issue in the future. Thanks for the input provided on my request for assistance yesterday.
Galen
Galen Briggs
New Virginia, Iowa
1978 Palm Beach
[Updated on: Tue, 06 August 2013 18:26] Report message to a moderator |
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| Re: OEM Wiper Motor Update [message #217241 is a reply to message #217211] |
Tue, 06 August 2013 22:24  |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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good to know it's serviceable.
I like the variable speed hydraulic system, too bad it doesn't have an intermittent option as the slow speed sucks in light rain
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: OEM Wiper Motor Update [message #217298 is a reply to message #217241] |
Wed, 07 August 2013 16:03 |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
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| Keith V wrote on Tue, 06 August 2013 20:24 |
good to know it's serviceable.
I like the variable speed hydraulic system, too bad it doesn't have an intermittent option as the slow speed sucks in light rain
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Funny you should mention that - I've found that if I'm REALLY careful, my wipers will run intermittently (errrr, in a good way, that is...). I found this out by driving in very light drizzle, trying to set the wipers to as slow as speed as possible. I found that JUST below the point where the wipers stopped, they'd "go intermittent", with 5-10 seconds between wipes. The range on the slide control that results in this mode is about 1 micron wide though... kind of hit and miss, but hey, it's something to keep me entertained while driving...
Has anyone else ever found this "mode"?
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
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| Re: OEM Wiper Motor Update [message #217300 is a reply to message #217298] |
Wed, 07 August 2013 16:13 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| habbyguy wrote on Wed, 07 August 2013 14:03 |
| Keith V wrote on Tue, 06 August 2013 20:24 |
good to know it's serviceable.
I like the variable speed hydraulic system, too bad it doesn't have an intermittent option as the slow speed sucks in light rain
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Funny you should mention that - I've found that if I'm REALLY careful, my wipers will run intermittently (errrr, in a good way, that is...). I found this out by driving in very light drizzle, trying to set the wipers to as slow as speed as possible. I found that JUST below the point where the wipers stopped, they'd "go intermittent", with 5-10 seconds between wipes. The range on the slide control that results in this mode is about 1 micron wide though... kind of hit and miss, but hey, it's something to keep me entertained while driving...
Has anyone else ever found this "mode"?
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I found that 'sweet spot' too on the way home from Fredericksburg Texas on our trip last May. There was kind of a mist falling and I was messing with the wipers to keep the windshield clear. As Mark said, just a very short part of the lever stroke made them intermittent.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] OEM Wiper Motor Update [message #217312 is a reply to message #217300] |
Wed, 07 August 2013 19:43 |
Jerry Wheeler
Messages: 246
Registered: January 2013
Karma: 2
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Senior Member |
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Driving up in New England & Nova Scotia last October, I also found that
wiper intermittent spot. But after 3 days of driving on the wet roads and
lots of light rain and mist, I opted for Henderson's electric wiper system.
JR Wheeler 78 Royale NC/OR
On Wed, Aug 7, 2013 at 5:13 PM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> habbyguy wrote on Wed, 07 August 2013 14:03
> > Keith V wrote on Tue, 06 August 2013 20:24
> > > good to know it's serviceable.
> > > I like the variable speed hydraulic system, too bad it doesn't have an
> intermittent option as the slow speed sucks in light rain
> >
> > Funny you should mention that - I've found that if I'm REALLY careful,
> my wipers will run intermittently (errrr, in a good way, that is...). I
> found this out by driving in very light drizzle, trying to set the wipers
> to as slow as speed as possible. I found that JUST below the point where
> the wipers stopped, they'd "go intermittent", with 5-10 seconds between
> wipes. The range on the slide control that results in this mode is about 1
> micron wide though... kind of hit and miss, but hey, it's something to keep
> me entertained while driving...
> >
> > Has anyone else ever found this "mode"?
>
>
>
> I found that 'sweet spot' too on the way home from Fredericksburg Texas on
> our trip last May. There was kind of a mist falling and I was messing with
> the wipers to keep the windshield clear. As Mark said, just a very short
> part of the lever stroke made them intermittent.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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