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High Idle.


 
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Richard Hare
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Joined: 17 Apr 2008
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PostPosted: Thu Apr 04, 2013 8:53 pm    Post subject: High Idle. Reply to specific post Reply with quote

Evening again Gents.
High idle.

No leaks on vacuum lines, new diaphragm in injector pump. altered throttle stop all ways, made sure breather pipe is sealed into the air intake and the valve cover. made sure oil in air filter is up to snuff. air intake rubber pipes in good order and clamps both tight.
No apparent leaks on intake manifold. (New gasgets from the rebuild)
What next?
If I remove air intake and put hand over the pipe a little, it idles down well.
No surging.
Any good ideas what to check?
It's a year or two since I posted about this tractor, as regular farm work has kept me busy, but finally got at it again seeing as weather isn't fit for much else.

Thanks in advance for any pointers.

BTW;
Coupler and injector pump had been changed on this tractor, so timing had to be done by comparing with another that runs nicely. (No timing scribe line on coupler)
If timing is still a bit off, Could this cause a high idle??
Any help most appreciated!

Richard.
 
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Richard Hare
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PostPosted: Thu Apr 04, 2013 8:55 pm    Post subject: Re: High Idle. Reply to specific post Reply with quote

Should have said in the above, it's a '61 Fordson Super Major. (Diesel)
 
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tiresntracks
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PostPosted: Sat Apr 06, 2013 2:25 pm    Post subject: Re: High Idle. Reply to specific post Reply with quote

The only thing that comes to mind right now is the damping valve on the governor. Is it broken or not adjusted?
 
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Richard Hare
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PostPosted: Sat Apr 06, 2013 5:59 pm    Post subject: Re: High Idle. Reply to specific post Reply with quote

Good evening T&T,
Thanks for your reply!

The damping valve,......is that adjusted with the lock-nut on the end of governor?
If so, how do I go about checking or adjusting it?
Thanks again,

Richard.
 
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Thom R
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PostPosted: Tue May 14, 2013 8:22 am    Post subject: Re: High Idle. Reply to specific post Reply with quote

I have exactly the same problem on my Super major -61. But could not find any documents online on how the damping valve should be fitted inside the governor. As it is now the damping valve is not attached to the diaphram at all. Is that correct or should the damping valve be connected to the bolt in front of the diaphram. No clue
 
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