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Home » Public Forums » GMCnet » Ready to knock out the knurled adapter in my old wiper arms (Thought I would start a new topic in case Lumina wipers is boring)
Ready to knock out the knurled adapter in my old wiper arms [message #227974] Thu, 31 October 2013 18:29 Go to next message
mojoe is currently offline  mojoe   United States
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Registered: November 2012
Location: Monroe, NC
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Ready to knock out the knurled adapter in my old wiper arms.
Can someone please tell me which way I need to knock them out and the best way to do it.


Joe Kemenczky.. 1975 Eleganza ll " Odie " 75,000 miles.. "When I was younger, I could remember anything, whether it had happened or not." - Mark Twain. .
Re: Ready to knock out the knurled adapter in my old wiper arms [message #227977 is a reply to message #227974] Thu, 31 October 2013 18:44 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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Sir: they knock out from front to back. Use a vise or a socket or a wrench or anystuff that will be wider than the insert but not as wide as the arm. Screwdriver or punch will get it out. A lot of times it will stay on the shaft. When you drill the Lumina wiper do not do it to deep cause you will have to use washers to get the nut to tighten all the way down. Trial and error. When you get one done mark the drill bit with tape where to stop. I might advise to put the insert on the shaft then put the arm on straight and tighten down enough to mark and hold the insert then remove and tighten in a vise with wooden paint paddles in the jaws.


mojoe wrote on Thu, 31 October 2013 19:29

Ready to knock out the knurled adapter in my old wiper arms.
Can someone please tell me which way I need to knock them out and the best way to do it.



C. Boyd
76 Crestmont
East Tennessee
Re: Ready to knock out the knurled adapter in my old wiper arms [message #227980 is a reply to message #227977] Thu, 31 October 2013 18:52 Go to previous messageGo to next message
SteveW is currently offline  SteveW   United States
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Well...

I have a related issue.

I've installed the new wiper blades and they look great.

The passenger side is just fine, but the drivers side looses contact with the windshield for the last 2/3rd of its swipe. And I cannot get it down lower on the shaft.

I need to do some more serious investigation. Is there an adjustment to move the entire contraption more inward ?? Maybe I need to drill out the knurled insert to a larger diameter (it's the original)...

So many projects... and a day job too.

Steve w
1973 23'
Southern California



Steve W 1973 : 23' Southern California
Re: Ready to knock out the knurled adapter in my old wiper arms [message #227983 is a reply to message #227977] Thu, 31 October 2013 19:09 Go to previous messageGo to next message
mojoe is currently offline  mojoe   United States
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Registered: November 2012
Location: Monroe, NC
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Thanks chuck!.. That's what I started doing but, thought I would ask before messing them up.
Hope you are feeling better!


Joe Kemenczky.. 1975 Eleganza ll " Odie " 75,000 miles.. "When I was younger, I could remember anything, whether it had happened or not." - Mark Twain. .
Re: Ready to knock out the knurled adapter in my old wiper arms [message #228001 is a reply to message #227980] Thu, 31 October 2013 20:56 Go to previous messageGo to next message
Keith V is currently offline  Keith V   United States
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SteveW wrote on Thu, 31 October 2013 18:52

Well...

I have a related issue.

I've installed the new wiper blades and they look great.

The passenger side is just fine, but the drivers side looses contact with the windshield for the last 2/3rd of its swipe. And I cannot get it down lower on the shaft.

I need to do some more serious investigation. Is there an adjustment to move the entire contraption more inward ?? Maybe I need to drill out the knurled insert to a larger diameter (it's the original)...

So many projects... and a day job too.

Steve w
1973 23'
Southern California




sounds more like the arm is binding, try lubing the pivot point where the arm bends.
I've seen them get really sticky



Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
Re: Ready to knock out the knurled adapter in my old wiper arms [message #228018 is a reply to message #228001] Thu, 31 October 2013 23:23 Go to previous message
jim kanomata is currently offline  jim kanomata   United States
Messages: 257
Registered: March 2007
Location: fremont,ca
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Senior Member
ou might want to back off the nut and reset the arm as you tighten it again.
I did that mistake myself one time on my own coach.
Should any need a replacement Knurled sleeve, we have them in stock.


Jim Kanomata Applied/GMC, Fremont,CA jimk@appliedairfilters.com http://www.appliedgmc.com 1-800-752-7502
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