Search found 5 matches

by lasanderson
Fri Feb 18, 2011 8:39 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: walking beam engine does not run
Replies: 14
Views: 12835

Re: walking beam engine does not run

Well it finally runs! After reading the the trouble shooting paper you sent me. I made a new piston of JB weld that has a closer tolerance. However I did not use the Haige Type. Having a pivit joint so far back from the center of the piston didn't seen right. The piston has to fit tight enough to se...
by lasanderson
Mon Feb 07, 2011 10:00 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: walking beam engine does not run
Replies: 14
Views: 12835

Re: walking beam engine does not run

I just tried ice water and it made no difference. One thing I did notice was smoke bypassing the piston and also a small amount exiting the displacer rod bearing. The piston and the cyclinder are correctly sized according to the plans. So I'm still puzzled.
by lasanderson
Sun Feb 06, 2011 8:45 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: walking beam engine does not run
Replies: 14
Views: 12835

Re: walking beam engine does not run

No, I haven't tried that. How much differential do you need for this engine? My other engine does not have a cooling on it. I use a small candle. It runs fine untill the engine is all the same temperature and then it stops.
by lasanderson
Sat Feb 05, 2011 2:40 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: walking beam engine does not run
Replies: 14
Views: 12835

Re: walking beam engine does not run

Yes I saw that modification with the bend in the rod. I soldered both ends of the can at the rod. I also soldered the top of the displacer piston can. I can see the displacer moving thought the piston hole. But you have to wonder just how hot it is inside the power cyclinder. I might be hot enougt t...
by lasanderson
Thu Feb 03, 2011 4:42 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: walking beam engine does not run
Replies: 14
Views: 12835

walking beam engine does not run

I built a walking beam engine from boydhouse.com online plans and timed it as was said. The piston was made from JB Weld and is made like the Haige type. All the parts move very freely. I use Sterno for the fuel. Everything looks correct but It will not run. It doesn't even try to run. So where do I...