'Crisp' engine noise.

This forum is for the Fordson New Major, including the Super Major and the Power Major.
Nick
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Posts: 712
Joined: Thu Jun 03, 2010 8:52 am
Location: Somerset UK

Re: 'Crisp' engine noise.

Post by Nick »

Robert, thanks for that. I know exactly what your trying to say, I once did this on a two stroke moped I had when I was 14, it came with the mag etc in pieces, got it running though!
Looks like I may end up taking the head off again because the starting was never this bad even before I rebuilt the engine :oops:
Oh yay, look, another seized bolt! Lets get a hammer.....and some kano.....and some cider!

super6954
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Joined: Sun Jul 06, 2008 8:21 pm
Location: Manitoba,Canada

Re: 'Crisp' engine noise.

Post by super6954 »

Hi Nick
I wasn't sure how much you new on timing, so that old bike taught you some thing good :D . like this major will when you get her running right :wink:
Well i guess if it started better before somethings wrong somewhere , and it can only have changed during the re build :| .

I think ive suggested all i can for now that might be usefull :) , short of a plane ticket to come look, and have a visit with my uncle in Devon too :lol: so I'll let the others have a say and hopefully you can figure it out and get her finished off soon :) .
Looking forward to it :) It's been a while discussing it and in your time working on it :)
Regards Robert
A Fordson is for life not just for Christmas !.

Pavel
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Posts: 529
Joined: Thu Sep 01, 2011 1:54 pm
Location: Western Australia

Re: 'Crisp' engine noise.

Post by Pavel »

Having downloaded a PDF copy of the official Fordson workshop manual, the specification section gives no info about the timing of the inlet valve other than the setting marks on the timing gears. My post, then, is of no help to you at all.
I believe, though, that Henk's two suggestions is your best bet. First, and foremost, get, and fit, the new plastic drive pad -- 2 plus mill. is far too much slop. Secondly, then play around with the timing marks by one or two [CRANKSHAFT] degrees -- especially advance since the backlash slop will cause it to be retarded. It cannot be far out since you have it running.
Pavel

Pavel
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Posts: 529
Joined: Thu Sep 01, 2011 1:54 pm
Location: Western Australia

Re: 'Crisp' engine noise.

Post by Pavel »

Some further food for thought, Nick.
In your first post you mentioned two things: You have a later engine, plus the pump adjustment is at its furthermost adjustment.
The Super Major fuel system supplement concerning its fitment of the Minimac injector pump states:
"The new injection pump ...... cannot be installed on tractors with a previous type engine [but] the previous fuel injection pump can, however, be used with the current type cylinder block. The current type cylinder block has been fitted ...... since approximate engine no. 1613500." It further states that the Minimac pump has driving dogs that are 10 degrees offset from those of the earlier pump.
Could this account for the apparent lack of further pump adjustment on your engine? Hopefully the more knowledgeable members of this forum will provide comments.
Pavel

Pavel
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Posts: 529
Joined: Thu Sep 01, 2011 1:54 pm
Location: Western Australia

Re: 'Crisp' engine noise.

Post by Pavel »

Nick, had another look at the PDF engine download because it crossed my mind that, from experience with other engine overhauls, the crankshaft pulley is often keyed to the crankshaft to ensure it retains its correct position, and that this keyway is invariably at the 12 o'clock position when the number 1 piston is at top dead centre. The Major engine conforms to this. If you can access this, usually by removing the locking bolt and washer only, you would then be able to determine TDC and work forward the number of necessary degrees to see what your pump timing presently is and to correct it if necessary.
Pavel

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