WD 45 sputters, jumps, then dies

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   Hi all  I was out mowing my pasture. She was humming right along for a good hour,then slowly started losing power.  I limped back to the barn, sputtering, jumping, dying.  Always re-started.  Here is what I've done.  Pulled gas line from carb to check flow.  Steady, full flow for a minute.  Inside of tank is spotless; the inlet shows no obstruction unlike the last time it acted up and I found a ladybug blocking fuel flow..but that's another story!  I pulled the carb and thoroughly cleaned it with my carb rods, gumout, air. This is a re-built carb from Yesterday's Tractors, installed 9/18.  Re-installed carb. but did not connect the air cleaner hose.  Still no good.  At one point it had a backfire through the carb, i.e. puff of white smoke before dying.  Pulled it again to re-check the needle and seat (Viton tipped) and float action. Didn't help, still sputtered for about ten seconds then died.  Throttle and choking action didn't seem to affect it much.   FYI:  1953 WD 45 (gas). I converted it to 12V nearly 20 years ago.  New coil 5/12; new plugs 5/18 (plug insulators are a nice tan color) replaced ignition points, rotor and cap 6/21.  I am at a loss.  I believe fuel delivery is not the issue, but maybe I'm wrong.  Should I focus on electrical/timing?  

Edited by JRM442 - 17 Jun 2023 at 10:47am

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JRM442 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 16 Jun 2023 Location: River Falls Points: 4	Post Options Post Reply Quote JRM442 Report Post Thanks(0) Quote Reply Topic: WD 45 sputters, jumps, then dies Posted: 17 Jun 2023 at 10:41am
	Hi all I was out mowing my pasture. She was humming right along for a good hour,then slowly started losing power. I limped back to the barn, sputtering, jumping, dying. Always re-started. Here is what I've done. Pulled gas line from carb to check flow. Steady, full flow for a minute. Inside of tank is spotless; the inlet shows no obstruction unlike the last time it acted up and I found a ladybug blocking fuel flow..but that's another story! I pulled the carb and thoroughly cleaned it with my carb rods, gumout, air. This is a re-built carb from Yesterday's Tractors, installed 9/18. Re-installed carb. but did not connect the air cleaner hose. Still no good. At one point it had a backfire through the carb, i.e. puff of white smoke before dying. Pulled it again to re-check the needle and seat (Viton tipped) and float action. Didn't help, still sputtered for about ten seconds then died. Throttle and choking action didn't seem to affect it much. FYI: 1953 WD 45 (gas). I converted it to 12V nearly 20 years ago. New coil 5/12; new plugs 5/18 (plug insulators are a nice tan color) replaced ignition points, rotor and cap 6/21. I am at a loss. I believe fuel delivery is not the issue, but maybe I'm wrong. Should I focus on electrical/timing? Edited by JRM442 - 17 Jun 2023 at 10:47am

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mdm1 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Onalaska, WI Points: 2682	Post Options Post Reply Quote mdm1 Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 11:36am
	Sounds just like what my G was doing. I replaced the condenser and it runs fine. Found an old one. Happened 2 times now. I did what you did thinking it was fuel starvation. Just a thought. Let us know what you find.
	Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK!

Clay Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Udall, Kansas Points: 10049	Post Options Post Reply Quote Clay Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 12:14pm
	Could also be an induction leak. Is the manifold tight and are the gaskets in good condition?

steve(ill) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 88672	Post Options Post Reply Quote steve(ill) Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 12:43pm
	i would consider the condenser first.... then the ignition coil.... Elect components break down over time with heat. you have a 12v coil with internal resistor and not the old type with an external resistor ? Edited by steve(ill) - 17 Jun 2023 at 12:46pm
	Like them all, but love the "B"s.

WF owner Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 May 2013 Location: Bombay NY Points: 5060	Post Options Post Reply Quote WF owner Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 1:40pm
	Did you install Champion spark plugs? They could be your problem.

captaindana Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Fort Plain, NY Points: 2580	Post Options Post Reply Quote captaindana Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 1:54pm
	Condenser
	Blue Skies and Tail Winds Dana

ac45dave Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 23 May 2015 Location: SE(IN) Points: 1346	Post Options Post Reply Quote ac45dave Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 3:08pm
	Sounds like condenser to me as well.RR174 in Echlin brand from NAPA and dr60 in Standard Blue streak.Those are the only two condensers I will use.Everything else seems to be junk these days.
	54 wd-45gas ; 56 wd-45d N/F w/fact p/s ; 63 d-17 sIII N/F gas ; 60 D14 N/F ; 67 d-17 sIV N/F gas ; 63D15 sII W/F; 39rc#667 ; 2021 massey 4710 fwa ; gravely 2 wheel tractors

JRM442 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 16 Jun 2023 Location: River Falls Points: 4	Post Options Post Reply Quote JRM442 Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 4:45pm
	Thanks..I will. I went to Fleet Farm since I know they carry tractor parts including ignition kits. They had 'em for Ford, MF, John Deere, etc., but not for the Allis. I recall I bought a kit there years ago. I too think it's the condenser. We'll see.

mdm1 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Onalaska, WI Points: 2682	Post Options Post Reply Quote mdm1 Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 7:35pm
	Blue streak come highly recommended. I just ordered some from Amazon. Check with a parts house they should have them.
	Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK!

JRM442 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 16 Jun 2023 Location: River Falls Points: 4	Post Options Post Reply Quote JRM442 Report Post Thanks(0) Quote Reply Posted: 17 Jun 2023 at 10:57pm
	Bingo!! It was the condenser! I rummaged through my old parts and found a condenser, (Made in USA). Installed and instant purring, the way it should be. Thanks for all your help and suggestions.

mdm1 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Onalaska, WI Points: 2682	Post Options Post Reply Quote mdm1 Report Post Thanks(0) Quote Reply Posted: 18 Jun 2023 at 12:54pm
	Glad you got it going good. Thanks for letting us know what happened!
	Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK!