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WD45 points losing gap
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Roy Jerome View Drop Down
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Joined: 17 May 2010
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    Posted: 17 May 2010 at 10:30pm
I have a 1956 WD45 that keeps losing the gap of the points. I'll set the gap, drive the tractor for a few minutes and then it kills. After searching I finally figured out that the points were closing. Any idea what I can do to stop this from happening?
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LouSWPA View Drop Down
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 24427 		Post Options Post Options   Thanks (0) Thanks(0)   Quote LouSWPA Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2010 at 10:45pm
I don't know, but I have some spare gap laying around if you can't find yours!
 
I'm sorry, I couldn't help myself. I'm in an ornery mood!
 
I suspect that the screw that holds the points in place after you set the gap may be stropped and not holding. When you go to reset the gap, does it feel tight? Unless that hold down screw loosens I don't see how the points could move together
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Allen Dilg View Drop Down
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Joined: 12 Sep 2009
Location: NE IL
Points: 820 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Allen Dilg Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2010 at 10:53pm
  Hello Roy   Is it possible that the dist shaft is wore???  or the plate is loose??  Do you have a dwell meter to check while running?
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Gerald J. View Drop Down
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Joined: 12 Sep 2009
Location: Hamilton Co, IA
Points: 5636 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2010 at 11:04pm
If the screw isn't stripped, the cam may be wearing the rubbing block rapidly because the cam is rusty or dry or both. It needs a tiny bit of grease than won't fly off.

Gerald J.
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JayIN View Drop Down
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Joined: 18 Dec 2009
Location: SE/IN
Points: 1982 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JayIN Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 2010 at 7:05am
probably bad bearings in the dist shaft.
sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?"
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Steve in NJ View Drop Down
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11899 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 2010 at 11:20am
In most cases from my experience rebuilding these Delco Distributors is the oilite bushing inside is worn causing the main shaft to wobble changing dwell constantly. Pop the cap off, grab the rotor and see if you can move the main shaft side to side bout' 3-5 thousands. If so, main shaft and or bushings are worn. Time for a rebuilt. The 45's usually use the Delco 1111735 or 745 Distributor. Have both units rebuilt/exchange on the shelf ready to go if ya need one. When the rub block is worn crooked, it will never hold the gap correctly. Dwell will always change...   HTH
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mlpankey View Drop Down
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Joined: 13 Sep 2009
Location: Vols country
Points: 4580 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mlpankey Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 2010 at 6:19pm
I agree with Steve . I wll also add that I checked four delco  remmy allis chalmers distriutors 2 weeks ago and found the star wheel  that opens the points as the rotor turns to be worn and measuring different on all four distributors and some of the ramps being a tick off from each other. Thats why I have started building the Gm style four pin distributors. newer technology no wearing parts other than shaft bushings .350 shipped ready to run.
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