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Sanchez 
Bronze Level
Joined: 01 Apr 2020
Location: Alberta
Points: 47
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 Topic: WD45 Ignition Timing
Posted: 01 Sep 2020 at 11:25pm |
I have finally gotten around to checking out the ignition timing on the WD45 using a timing light. I had set it up previously using the seat of the pants method which actually worked pretty well. The light revealed that the Fire mark was only off by about 1/4 " in the sight window , so it didn't take much of an adjustment on the distributor, less than 1/16" of a rotation. My question is while watching the timing mark with the light while running it seems pretty jumpy and slightly erratic and will move at times up to 1/2 " in the sight window sometimes forward sometimes aft of centre in the window. Is this normal? Could this be the result of a sloppy bushing in the distributor which is allowing the timing to drift ? I should mention that its a 54 model .
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Sugarmaker
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Joined: 12 Jul 2013
Location: Albion PA
Points: 8504
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Posted: 02 Sep 2020 at 6:18am |
Richard, Are you setting the timing at wide open throttle? If not that could be the reason?? I don't time these enough to be able to answer your question. Sounds like your very close and timing by ear or feel can get you very close to correct also. We need some pictures too! Regards, Chris
Edited by Sugarmaker - 02 Sep 2020 at 6:20am
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D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet.
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8618
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Posted: 02 Sep 2020 at 9:16am |
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I suppose if everything was like new it may not move around but that is how my 45 is. Im going to say "its normal".
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Sanchez
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Joined: 01 Apr 2020
Location: Alberta
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Posted: 02 Sep 2020 at 1:31pm |
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Thanks Steve thats good to hear, I'm not too worried about it as its not likely to affect my launch time on the 1/4 mile :). I was just curious more than anything if it is worth messing with the distributor bushings, there is a little side to side slop in the shaft although I haven't measured it as such. Or if there is a lot of slop in the bushings what kind of tuning problem would you get?
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DrAllis
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Joined: 12 Sep 2009
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Posted: 02 Sep 2020 at 3:40pm |
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Any looseness is the distributer shaft/bushing causes that. Not normal for a tight shaft.
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NNYACAL
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Joined: 16 Sep 2009
Location: RICHVILLE, N.Y.
Points: 101
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Posted: 04 Sep 2020 at 9:42am |
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if the bushings are loose and you are timing it at idle then the centrifugal flyweights and springs should also be checked as these will also affect you timing.
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G,IB,B,C,CA,RC,WC,WF,WD,WD45,D14,D17SERIES 1,2,4
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