goldfishventures Posted August 13, 2013 Share Posted August 13, 2013 mechanical work is coming along on the humber and bedford pigs i purchased several months ago... question, on the humber the generator makes an odd whine sound at low rpm which goes away at higher revs....is this normal or could it be a bearing??? any info is greatly appricated....joe in oregon Quote Link to comment Share on other sites More sharing options...
griff66 Posted August 13, 2013 Share Posted August 13, 2013 2 speed genny! Quote Link to comment Share on other sites More sharing options...
fv1609 Posted August 13, 2013 Share Posted August 13, 2013 on the humber the generator makes an odd whine sound at low rpm which goes away at higher revs....is this normal Joe yes assuming you have a 2-speed 25A generator. It is the generator gearbox operating. If it has been idle for 3 weeks you need to prime its gearbox with 1/4 pint of engine oil. As it only gets lubricated after a few minutes of running. This is under the brass filler nut on top of the generator near the pulley. Do not put oil down the mesh hole that is the air intake. Quote Link to comment Share on other sites More sharing options...
goldfishventures Posted August 13, 2013 Author Share Posted August 13, 2013 Joe yes assuming you have a 2-speed 25A generator. It is the generator gearbox operating. If it has been idle for 3 weeks you need to prime its gearbox with 1/4 pint of engine oil. As it only gets lubricated after a few minutes of running. This is under the brass filler nut on top of the generator near the pulley. Do not put oil down the mesh hole that is the air intake. thanks for the info i'll try the priming....will post pics of progress on bedford and humber..... the humber has been fairly easy to maintenance after all floor plates were removed pressure washed brakes etc. and sand blast/ paint.... the bedford required engine rebuild, frame r and r and replacement back to it's original chasis with sandblast and paint...it now looks as it should and is remarkably complete....but certainly not a cheap project... not far from runing the bedford awaiting a carb rebuild..... will post pics of work tonight... joe in albany Quote Link to comment Share on other sites More sharing options...
fv1609 Posted August 13, 2013 Share Posted August 13, 2013 Joe if the engine has been running for a few minutes then the generator will have got lubricated as much as its going to. So no point in priming it. You will always have the change in generator sound around 1,000 rpm. Quote Link to comment Share on other sites More sharing options...
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