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Fordson Tractors Discussion Forum

Re: FSM timing Q's.

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Mike Farmer

05-09-2011 12:29:24

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Hi I'm going to try to put the 'timing' info on here. If it dont work, send me your email address and I'll send the page/s to you direct

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Richard hare

05-10-2011 05:43:29

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 Re: FSM timing Q's. in reply to Mike Farmer, 05-09-2011 12:29:24  
Good morning Mike,

Thanks for taking ther time to attach the timing info!
My problem is that the pump has had a new coupler put on it at some point, and the timing mark on coupler (just a slight nick in one place) doesn't have anything to do with the pump it is now on, so I've had to set the timing by putting engine on 23 deress BTDC on #1 cylinder, and with the pump off the tractor, turn the pump so the pistons in the pump are in the same position as on another FSM I have when it is also set on its timing marks on # 1.
Hope I didn't lose you!
Anyway, it is running now without smoke, but does need a slight tweak, as it is not quite as smooth running as the other tractor.

Got awful busy with spring work, (-5C here this morn!) so will report back when I get a go at it again.

Thanks again, Mike!
...and best wishes,


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Mike Farmer

05-10-2011 12:33:12

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 Re: FSM timing Q's. in reply to Richard hare, 05-10-2011 05:43:29  
Glad it worked. My thoughts. 1. the pump you have is the very earliest model with 7mm plungers and it came off an FMD prior to 1425097. probably from about 1955ish (that would have been 29 degrees BTDC)

2.If your engine still had its original pump then it should be 23 degrees BTDC.
3.However if you fit the 7mm pump to the later engines they mostly go for 26 degrees BTDC. 4.So thats the way I would go.
Set your engine to 26 and then sort the pump out as you suggested. Best Etc MTF

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Richard hare

06-10-2011 05:39:31

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 Re: FSM timing Q's. in reply to Mike Farmer, 05-10-2011 12:33:12  

I am very sorry I miseed your reply!
This is very useful information,(RE. timing at 26 dgrees and trying it )
I got busy with spring work and have not had a go at the old Fordson for some time.
Playing with the adjustment on the coupler helped, but it still runs rougher than the other old FSM I have, so I will try your reccomendations.

I Will report back when I have done so, but am awfully tied up with farm stuff at present.

Thank you again Mike!!!


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