So we have this generator at work with a chinese diesel engine that died after 160 hours. The armature portion and all of the control are still good, so I would like to see if a new motor other than the original will fit up (unlikely, I know.) Heres the problem: The mounting bolts for the armature to the engine are inside the armature case. How do I get to these? the front and rear of the armature are vented aluminum castings while the mid section is solid. I have removed the four long bolts around the circumference of the armature which secure the three sections together. I have also pulled off the rear shield/dust cover and removed the long center bolt which goes through the armature shaft and threads into the crankshaft. With all this removed (yes I removed the bolts in the mounting feet) i managed to pull back the central and rear sections of the armature about 1 cm, and i can rotate these two sections about 30 degrees. I cant get it past this. Has anyone ever taken apart a generator? The shaft doesn't look tapered or anything, but do I just have to keep pulling? Am I missing a bolt? Any insight would be helpful. Thanks. Sorry for the long post. Here's a pic of the generator. It shows the front part and some of the mid part of the armature. Picture

 

Sounds like it is in a bind or has a burr on it. Just keep working it in and out. It'll come

 

The shaft on the motor is tapered and most of the time you need a special puller/bolt to remove the armature and even then there is a chance of destroying the armature.Some require you to tap the end of the armature and use a slide hammer to pop it off.After looking at the photo did you try to call the company and ask if they sell the special tool to remove it might be worth a shot.Most likely the cost of a replacement motor is more then the unit cost to replace.

 

I don't know, the generator's are kinda generic and you may be able to adapt it to something else. I have a Northstar 5500 that is very similar except for the engine. My engine is a 9hp Honda. I put a new generating unit on mine.

What is holding it to the motor is the long bolt thru the center. It swedges it into a cone shaped connection. Mine came apart with slight effort, however, it was almost brand new. Try putting the bolt back in with sufficient threads, put pressure on the generator pulling it away from the engine, and tap on the bolt head. Careful, don't break anything. jd

 

That's how I do It jimdandy but like you I am afraid he may bend or brake something. Theres a knack to It.

 

alright, thanks alot guys. I think I'll try the hammer on the bolt trick with some pressure on the housing. I've done that a lot with flywheels on small engines and it always gets them to pop off. I guess I was just afraid I missed an attachment bolt.