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Allis Chalmers Discussion Forum
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Magneto timing.......doooohhh! (Long)

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Pete S

09-09-2007 15:06:05




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Hello,
I recently posted about trouble with a Mag on my WD45. Turns out it was a FB J4B, and I fixed it! Thanks again to everyone!

Anyway, it was an intermittent problem, so I did anticipate another failure as I wasn"t sure if what I did to get"er to go was substantial enough to be forever "fixed".

So, today, I fired her up,..... away she went, so nice to have her back in service! I simply backed her out and was intending to use her in about an hour or so. I went back, started up and then she died! POOP!

So, I went to work to remove the mag, thinking it was my "intermitant" problem back to haunt me.

LONG story short; Looked as if it wasn"t timed correctly within the mag, so I tried to index the mag while on the tractor, then took the mag into the shop, spun it in the vice..... ..wha la SPARK..... .what the heck?

Spent the next hour or so trying to time the engine at TDC. Wife helping me as I rotated the engine with a bar through the LOWER flywheel cover. I DID find the timing mark, I thought as it was the only HOLE on the outside of the wheel.
Crankity, crankity..... ..etc!!!
Little did I know, the access cover that was refered to in the manual, was on TOP of the bellhousing!!

SO, I then had "Ma" with finger in #1 sparkplug hole, found TDC. Reset internal timing on mag,..... .mounted mag..... ...OH, and PUT GAS IN TANK AS I WAS OUT!!!!!

That was the ONLY thing wrong..... ...fired right up! Went to work, and got things done.

I feel SO stupid, as if I JUST checked the gas when it wouldn"t start..... BUT I did learn a TON!
Pete

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El Toro

09-10-2007 06:05:03




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 Re: Magneto timing.......doooohhh! (Long) in reply to Pete S, 09-09-2007 15:06:05  
Whenever you remove a mag or distributor from an engine always make a note where the rotor is pointing. Then don't move the engine. Hal



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jeffalex2

09-10-2007 03:20:29




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 Re: Magneto timing.......doooohhh! (Long) in reply to Pete S, 09-09-2007 15:06:05  
I was out bush-hoggin' my upper field on my Allis B once and saw my neighbor out tryin' to start his hand-start JD for about 30mins. He's kind of grumpy all the time, but, I rode over to see if I could help. He said that it pulled out of the shed and quit. I asked "does it have gas in it?"...he barked back "OF COURSE IT'S GOT GAS IN IT!"...so I hopped back on the Allis and went back to work. I made one pass in the field and saw him pouring gas into the tank and then he only had to spin her twice b4 it started...I think we've all been there once or twice.

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JMS/.MN

09-09-2007 22:10:58




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 Re: Magneto timing.......doooohhh! (Long) in reply to Pete S, 09-09-2007 15:06:05  
FYI-all WD45 tractors had battery ignition- no magneto.



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Pete S

09-10-2007 04:27:33




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 Re: Magneto timing.......doooohhh! (Long) in reply to JMS/.MN, 09-09-2007 22:10:58  
Then what do I have? I bought it from a dealer used, and the PO has her all decked out with WD decals!

Anyway to indentify?

Thanks!
Pete



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chalmersbob

09-11-2007 19:36:21




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 Re: Magneto timing.......doooohhh! (Long) in reply to Pete S, 09-10-2007 04:27:33  
look below the spark plugs. if there is a bolt on plate on the side of the engine it is a wd. also engine serial # will start with wd if it is a wd if the serial # starts with 45 then you have a wd45. also check tractor serial # on left side of rear axle below brake cover. there is a machined area with the # stamped into it. Bob



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JMS/MN

09-10-2007 08:49:43




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 Re: Magneto timing.......doooohhh! (Long) in reply to Pete S, 09-10-2007 04:27:33  
By tractor serial number- starts with WD, but 146607 and above are WD45. Most WD came with magneto, but distributor became standard in 1953, and all WD45 (1953-1957) came with them. Curved shifter started on WD in 1952.



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