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Help please, Wolseley WD8 erratic running under no load

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Help please, Wolseley WD8 erratic running under no load

Post by Slim on Tue Aug 06 2013, 20:00

I've recently completed my first engine restoration (a WD8) and although it runs well under load I could do with some advice as it doesn't run so well under no load conditions (see video), other WD's under no load in YouTube videos seem to be running quite well - quite even. I assume I need some choke under no load conditions (lever vertical), I've tried that but that speeds the engine up to the point that it starts jumping about a bit too much, I assume I have two issues - one being the governor and the other that I need some choke or am I barking up the wrong tree, am I missing some trick or two ?

NB: There is some movement (adjustment) available in the mag mounting, is the static timing critical with this, mine is set about mid way between the limits of adjustment which means its firing at or very close to TDC, whats the effect of float height on these engines, I assume that also changes the mixture.

Any constructive advice much appreciated as I'm rather new to Stationary Engines, thanks.  DC


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Re: Help please, Wolseley WD8 erratic running under no load

Post by matt86 on Tue Aug 06 2013, 20:45

in my opinion in the video it runs like a typical wolselley same as mine but have to have it a notch or two on choke , The guvnor may be worth checking .

matt

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Re: Help please, Wolseley WD8 erratic running under no load

Post by Matth92 on Tue Aug 06 2013, 22:19

matt86 wrote:in my opinion in the video it runs like a typical wolselley same as mine but have to have it a notch or two on choke , The guvnor may be worth checking .

matt

they do have the odd dip when running with no load, all 7 of mine have done it a bit, some of them do seem to run a bit fast, my red one does and adjusting the governor doest seem to make much difference

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Re: Help please, Wolseley WD8 erratic running under no load

Post by kevjhnsn on Wed Aug 07 2013, 02:03

sounds about the norm to my ears,
all the ones ive had search a little when idoling along

looks great buy the way sweet job
the really quite running ones ,trust me ive asked the owners ,they have spent days and weeks valve gapping to the min and little tweeks here, little file there ect ect
just to get the ruston pb quitness out of them
kev

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Re: Help please, Wolseley WD8 erratic running under no load

Post by blackvanman on Wed Aug 07 2013, 08:49

Matth92 wrote:
matt86 wrote:in my opinion in the video it runs like a typical wolselley same as mine but have to have it a notch or two on choke , The guvnor may be worth checking .

matt

they do have the odd dip when running with no load, all 7 of mine have done it a bit, some of them do seem to run a bit fast, my red one does and adjusting the governor doest seem to make much difference

If they runs a bit fast its normally because its a 900rpm model, only way to back them down it to drill a new split pin hole closer to the end of the govenor adjustment screw inside the valve cover plate Smile worked a treat o mine Smile

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Re: Help please, Wolseley WD8 erratic running under no load

Post by Slim on Tue Aug 13 2013, 19:14

Thanks to all for their responses.

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Re: Help please, Wolseley WD8 erratic running under no load

Post by lister dan on Thu Aug 15 2013, 07:56

Mine does that its fuel staraiton lift the float to it sitts in the grove.
Cheers

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Re: Help please, Wolseley WD8 erratic running under no load

Post by matt86 on Thu Aug 15 2013, 12:10

Not being funny Dan but how can it be a engine running fast be fuel starvation? If was starvation engine would be hunting up and down.. Quite a few engine manufacures recommend if a engine wasn't on load to turn the choke on slightly and reduce the fuel if possible.

Matt

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Re: Help please, Wolseley WD8 erratic running under no load

Post by Matth92 on Thu Aug 15 2013, 16:12

timing sounds a tad late to me, the impulse should go off just as the crankshaft keyway is at the bottom

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