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Babe Bee running Problem
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Babe Bee running Problem
Got another little problem for you experts!
I've just finished re-building yet another old Babe Bee, fitted the full overhaul kit, reed, reed retainer , fuel pipe, gaskets, etc. and put in a new needle (This was the Bee with the end of the old needle broken off, as my previous post)
I put it on the test stand and fired it up, started OK, ran for about 20 seconds, sounded perfectly normal, then just stopped. It then took me an age to get it to start again, when it did, it ran for 20 seconds, stopped, pig to start again.
It seems to start OK from cold, but once it stops it just doesn't want to start again, and why is it stopping after a short time? It doesn't sound like fuel starvation, or too much fuel, one second it's running, then it's not, engine note doesn't change.
Any ideas folks?
Wilf
I've just finished re-building yet another old Babe Bee, fitted the full overhaul kit, reed, reed retainer , fuel pipe, gaskets, etc. and put in a new needle (This was the Bee with the end of the old needle broken off, as my previous post)
I put it on the test stand and fired it up, started OK, ran for about 20 seconds, sounded perfectly normal, then just stopped. It then took me an age to get it to start again, when it did, it ran for 20 seconds, stopped, pig to start again.
It seems to start OK from cold, but once it stops it just doesn't want to start again, and why is it stopping after a short time? It doesn't sound like fuel starvation, or too much fuel, one second it's running, then it's not, engine note doesn't change.
Any ideas folks?
Wilf
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Re: Babe Bee running Problem
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Last edited by Mudhen on Tue Nov 09, 2021 8:56 am; edited 1 time in total
Mudhen- Gold Member
- Posts : 489
Join date : 2011-09-19
Re: Babe Bee running Problem
I think you have poor piston cylinder fit.
Cold, compression is goodand it runs well but when it heats up t is poor so stops.
Then when hot it is hard to start until
It becomes cold and the fits tighter again.
This can be hard to feel when turning by hand but affects the engine a lot.
Cold, compression is goodand it runs well but when it heats up t is poor so stops.
Then when hot it is hard to start until
It becomes cold and the fits tighter again.
This can be hard to feel when turning by hand but affects the engine a lot.
Re: Babe Bee running Problem
I just got done fighting with a over abused 60s Babe Bee. Try a new glow head like Mud talked about earlier and also check the compression of the engine when it is hot like what Nitro said. I have had this issue before. Check the position of the pick-up tube, sometimes when you are assembling the engine, the tube can slip and move to a upper position.
Jacob
Jacob
Re: Babe Bee running Problem
nitroairplane wrote:I think you have poor piston cylinder fit.
Cold, compression is goodand it runs well but when it heats up t is poor so stops.
Then when hot it is hard to start until
It becomes cold and the fits tighter again.
This can be hard to feel when turning by hand but affects the engine a lot.
Ah Ha! yes, this could just be the answer, I had to reset the piston due to excessive play, so I suppose it could be badly worn, I'll try a different head first, as others suggested, and if that doesn't fix the problem it looks like it's to look at only, because I don't want to fit a new, modern cylinder/piston
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Re: Babe Bee running Problem
Admin wrote:I just got done fighting with a over abused 60s Babe Bee. Try a new glow head like Mud talked about earlier and also check the compression of the engine when it is hot like what Nitro said. I have had this issue before. Check the position of the pick-up tube, sometimes when you are assembling the engine, the tube can slip and move to a upper position.
Jacob
I've read about others having problems with the pickup tube moving, so that was the first thing I checked, as I said to Indra I'll try a new head also.
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Re: Babe Bee running Problem
the head- did you check if it might had screwed itself loose after running?
the exact same thing happened to my BW once, because the head wasn't on there tight enough.
Beez
the exact same thing happened to my BW once, because the head wasn't on there tight enough.
Beez
GermanBeez- Platinum Member
- Posts : 1167
Join date : 2011-06-15
Location : Bavaria, Germany
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