Hi All, I recently brought a Dunlite 5KVA generator at the local Tip shop. It appeared to have a seized engine (B&S 11hp side shaft, manufactured about 1980), I got the pull start off and freed the piston but after taking the head off I found a scour mark on the bore. I think its repairable and want to give it a go as the the generator is a no fuss unit and very rugged. The question I'm asking is how do you get the armature off? I had unbolted the coil section but have come to a halt as the armature is not budging. I have included some photos. The black aluminium housing appears to be bolted to the underside of the motor and has obvious way to remove without taking the armature off. I suspect that it is attached to the main shaft by a keyway, and if thats the case I have heard of keyways twisting given the high rpm the generator operates at if the engine stops suddenly. I hope some one can suggest a way of getting the armature off as I would like to keep the unit running as a gennie rather than demolishing the armature to salvage the engine.
My best guess is you will have to make up a puller/pusher using threaded rods so you can push against the armature. I would assume it can only be pushed onto the shaft with a keyway, can't see there is any other way it could have been assembled. It is probably going to be tight. If you can unbolt the housing you may be able to pull it back and get some penetrene onto the shaft, may help.
Hi Norm, That was my thought, but as the housing was aluminium I was trying to be extra careful. I did think of drilling a hole in the housing to see if was a keyway and using that to lubricate. But I again thought that someone on the forum may have had some experience with dismantling these type of gennie's
Thanks for replying Fred. The genie has been sitting and waiting for a while and my son would like it out of his garage. I keep an eye out for your pic. Dave
