D-600 rebuild ?'s

[Fireman 123]

Can the same needle bearing that's used in the armature plate, also replace the bronze bushing in the lower end? Can these bearings, and seals be matched up at a local auto parts store vs. buying an over priced LB part? I realize the rod bearings, and rings will need to be specific. Just hoping to do this on a budget. Thanks for any response.

 

[Fireman 123]

I got the D-600 tore down this evening. The bronze bushing in the lower crankcase is quite longer than the needle bearing on the top end. I'll have to get it pressed out to match a needle bearing to it. I was able to order a new set of rings, but I need a new piston as well. I can't believe the #606607 D-series piston has been discontinued. Does anyone know of another one that will work? I'll be taking the cylinder to have it honed. Thought about having the ports opened a little to give it some more umph!

 

[Two-Stroke]

If you don't mind waiting, I'll bet a D-series piston will turn up on eBay. You can still buy the F-series piston and rings, however.

Good luck.

 

[Fireman 123]

If you don't mind waiting, I'll bet a D-series piston will turn up on eBay. You can still buy the F-series piston and rings, however.

Good luck.

Yeah, I've noticed several F series ones on eBay at decent prices. I would think lots of D series are still in use. Like you said, I'll just have to wait until one comes along.

 

[Gene123]

Can the same needle bearing that's used in the armature plate, also replace the bronze bushing in the lower end? Can these bearings, and seals be matched up at a local auto parts store vs. buying an over priced LB part? I realize the rod bearings, and rings will need to be specific. Just hoping to do this on a budget. Thanks for any response.

Fireman, it's good to hear you decided to rebuild the D600 engine. I ordered a new coil for my D600 last week ----- $57 counting shipping. It's a tired 1973 model 5241. It could use a rebuild like yours --- so it will last another 36 years. :laughing: Any chance you could post some pics and notes for all the guys on the forum to follow along? You've certainly been helpful.

Regarding my 1980 model 5247 with an F100 engine that I recently got from the barn of an old buddy who passed away ----- thanks to you and the nice guys on the forum :thumbsup: I got it running again and worked out all the minor bugs. No more gas leaking from the air filter. It starts and restarts easily. The oem blade was still on it. I sharpened and balanced it and mowed for two hours without a hitch yesterday. Total repair cost was less than $20. :biggrin: I learned a lot on this forum.

 

[Fireman 123]

Glad you've got it back in service. Glad we were able to help you. I'll try to take some pics whenever I re-assemble the D 600. I'll have to find a piston before I can. Lawn Boy has discontinued them.

 

[Gene123]

Glad you've got it back in service. Glad we were able to help you. I'll try to take some pics whenever I re-assemble the D 600. I'll have to find a piston before I can. Lawn Boy has discontinued them.

How did you determine the piston was bad? Or, did you just want to hone it out a little and put in a new piston and rings?

 

[Fireman 123]

The piston has some scratches and scuff marks. I'll take it with me whenever I have the cylinder honed to get an expert's opinion though.

 

[Two-Stroke]

Is it possible to find a piston from another manufacturer of the same size? I've heard of this being done but haven't done it myself.

 

[Fireman 123]

I picked up this '78 R7266 today. Cleaned the carb, and put a new float spring, and fuel bowl on. Then I cleaned the carbon out of the muffler. Exhaust ports were clean. Started with 2 pulls.
A friend of mine's boss has a similar 19" model that is in very, very good condition. He said they couldn't get it to start. Hopefully they'll be willing to sell it, and I'll be sure to post some photos if I end up with it.