Lister Engines > Original Lister Cs Engines

Gov stuck, any easy suggestions?

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Hugh Conway:
After a few years of non operation, I have finally started up this 6/1. After a fuel bleed, it started easily.
To my dismay, I could see that the gov is not operating. With the linkage removed, it's easy to realize that the problem is internal, as the injector rack and external  linkage is free of any binding.
The flyweights or the sliding sleeve or the internal linkage is stuck. Before I (sigh) take things apart, does anyone have a possible solution. I've just re-installed the wheels and it's a startomatic, so they are heavy.
All suggestions entertained, though I think I will have to do some disassembly to remedy the situation.
Cheers
Hugh

mike90045:
take your good shirt off and get your arm up in there and see if you can wriggle it free or loosen it up.   

Hugh Conway:
@mike.....
Took your advice, put on a very old shirt. The flyweights  and/or governor sleeve were stuck. It was an easy thing to get unstuck. re-fit the gov linkage and gave it a spin without trying to start.
Crikey ! ! ! Stuck again, and I could see no obvious cause.
With the need for more information, I then removed the camshaft cover (after first removing the gib key, and the flywheel, and the injector pump, etc)
Nothing amiss, the bellcrank was free and not deformed, the governor sleeve was free to slide and rotate, the flyweights were free. WTF?
I held the sleeve while slowly rotating the crank and then found that one of the flyweight fingers became stuck on the sleeve, jamming the whole assembly.
A small, sharp burr on the sleeve face where the bellcrank roller rides is the culprit. It could be remedied with a few passes of a file, Quite easy except that the camshaft has to be removed in order to gain access for smoothing out the burr.
Maybe tomorrow.
Cheers
Hugh

mike90045:
Any chance you can access it from a Lifter port, pull the intake lifter - is the hole big enough to get a tool in there ?

Hugh Conway:
OK, success! problem solved. I had a look at the burr with a dental mirror, it looked like welding slag (?)
The governor sliding sleeve is about 1/2 inch inside of the block. Use of a file to remove the burr was out of the question as there was insufficient clearance. Last night the solution appeared in a dream. A miniature angle would do the trick without removing the camshaft. I have a Dremel tool. After packing everything with oily rags to catch debris, The burr was easily dealt with, and there was no need to remove the cam. The rags caught all of the grit (not much). Things move freely now, and it will be all back together after lunch.

BTW, here's a link to 38AC's excellent short vid on adjusting the governor linkage  https://www.youtube.com/watch?v=N4otiDKDiyk

Cheers
Hugh

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