We got a 7.5 kva alternator (Dunlite out of Oz) powered by one of these (16 hp side valve with balance shaft) second hand. Alternator is direct coupled to the engine so only one bearing. Known history - the alternator and motor had both been overhauled just prior to getting it - but the overhauler (a small equipment outfit) mightn't have been that good by some things I've found on this dismantle. It has had only intermittent use since.
Question is - do they all vibrate badly? This one has shaken the roll cage off the frame, shaken a wire off the rotor and a leg off the flywheel diode in the alternator.
And I've just found that the magneto end crank bearing has play in it. Which might have had to do with the bolts fastening the alternator to the engine being slightly too long and bottoming out before the flsnge was really tight. (Both engine and alternator are bolted to a base plate as well though).
The base plate has been adapted so it sits on a tyre in the roll cage as an anti-vigration measure.
Is this the nature of the beast or do I need to know more about that balance system? I'll have to go in there to replace the bearings so will have to find a manual.
Thanks in anticipation for any help and any pointers to a manual
Question is - do they all vibrate badly? This one has shaken the roll cage off the frame, shaken a wire off the rotor and a leg off the flywheel diode in the alternator.
And I've just found that the magneto end crank bearing has play in it. Which might have had to do with the bolts fastening the alternator to the engine being slightly too long and bottoming out before the flsnge was really tight. (Both engine and alternator are bolted to a base plate as well though).
The base plate has been adapted so it sits on a tyre in the roll cage as an anti-vigration measure.
Is this the nature of the beast or do I need to know more about that balance system? I'll have to go in there to replace the bearings so will have to find a manual.
Thanks in anticipation for any help and any pointers to a manual