I have a stihl bg55 a friend gave me. Didn't know what was wrong with it so I opened up the the case and boom! The bottom bearing of the connecting rod was gone just like this one. Tried looking for a new crankshaft, couldn't find one. So what I did was get a used stihl bg50 engine for under 40$ installed it, and now runs perfect. It has 125psi compression and is in perfect condition internally. Hope it lasts a long time!
If and i say IF you could source a caged needle bearing for the large end (crank) pin then yes you could press one of the crank throws off the crank pin and install a new bearing but the issue now becomes, is the crank pin within spec (good) and you would need to make 100% sure you reassembled it back into the exact position as before it was separated, so you would have to fabricate and use some sort of a jig, other wise you will wind up with vibration that will cause bearing failure.
Any ideas on where to get the crank assembly? Or as Cole mentioned, where to get a new bg50 engine??? Btw keep makin’ videos, and I knew exactly what you saw when you started going “woah”, I said the same thing when I popped open the crankcase 😳
There are several places on line that have new cranks rather expensive though, Your best bet is EBay, Craigs List, Yard/Garage Sales and Flee Markets. There are several different models that use the same crank, you can research this on line. www.farmertec.com has an inexpensive aftermarket piston cylinder kit that I've used several times with good results and they can be found elsewhere also just be cautious of cheap parts.
Loosen the flywheel nut to where the top of the nut is flush with the end of the shaft, then use the socket with a short extension (you may have to use a small spacer of some sort in the scoket to take up space) and tap the extension with a hammer (with some force) while either holding the engine up by the flywheel with your hand or by using something as a pry bar to put pressure onto the underside of the flywheel (being very careful not to break anything) and tap the extension while putting upward pressure onto the underside of the flywheel. This may take several persuasive taps but it will break loose. This is how I do more than 90% of mine. GOOD LUCK
I have two 86C's, they are great vacs but lack the gutts of my Makita BHX2501 as blowers. Is it just a case of returning or are they just not as powerful?
Sorry to hear that. To remove the flywheel I run the flywheel nut to a point that it's just higher that the threads and using a brass hammer rapped on the nut firmly while holding the flywheel with the other hand while suspending the it a small distance above the bench. As for the messed up threads you can try to run a 8mmx1.0 right hand thread Die on the crank to try and straighten out the threads. Good luck.
@@craigtimmons3468 Thanks for the tip. Got it off and found another bottom end and crank, so I'm good. Crank bearing seems good, a little side to side play, but no vertical or end play in the rod. Now just waiting for piston kit and hopefully get this bad boy running again. Your video is a major help. Thanks again.
When you say no ignition I'm assuming you mean its not popping, You do have gas in it right,, dump that gas out and try fresh gas, is it flooded? check for spark at the plug making sure its nice and blue and strong on the end of the center electrode, hows the compression feel, pull the muffler and check for scoring, this can keep it from running, try putting a little gas mix right down the carburetor and see if it starts
@@craigtimmons3468 I'm smelling gas and it's flooding when I'm trying to get it started. It's not not firing. I'll pull the spark plug tomorrow to see how it is. thanks,
Your right and most people know this and want 4 times what it should cost If you can wait a good deal generally comes around but it may take a few months.
The Whoa's were for all the metal fragments that was in the crankcase, that shortly after I showed the metal fragments and how the rod bearing was toast.
Ohhh....nice little job...roll on 576 ...your going to be busy my friend....upload where u can....did you see my k760 screw up.....haha it's on the channel....
This reply from someone who joined UA-cam 10 years ago has 4 yes 4 subscribers and no uploaded content and this person is TELLING ME I NEED TO STOP DOING VIDEOS. WOW🤯
I have a stihl bg55 a friend gave me. Didn't know what was wrong with it so I opened up the the case and boom! The bottom bearing of the connecting rod was gone just like this one. Tried looking for a new crankshaft, couldn't find one. So what I did was get a used stihl bg50 engine for under 40$ installed it, and now runs perfect. It has 125psi compression and is in perfect condition internally. Hope it lasts a long time!
Glad to hear you got it back up and running for only $40.
Craig Timmons is was a good deal. Keep up the good content!
I would've wanted to watch how it was taken out of the case, but your vids, you do what you want of course
Nice video Craig
Can those bearings be replaced? If so, how do you take the piston off the shaft?
If and i say IF you could source a caged needle bearing for the large end (crank) pin then yes you could press one of the crank throws off the crank pin and install a new bearing but the issue now becomes, is the crank pin within spec (good) and you would need to make 100% sure you reassembled it back into the exact position as before it was separated, so you would have to fabricate and use some sort of a jig, other wise you will wind up with vibration that will cause bearing failure.
Any ideas on where to get the crank assembly?
Or as Cole mentioned, where to get a new bg50 engine???
Btw keep makin’ videos, and I knew exactly what you saw when you started going “woah”, I said the same thing when I popped open the crankcase 😳
There are several places on line that have new cranks rather expensive though,
Your best bet is EBay, Craigs List, Yard/Garage Sales and Flee Markets.
There are several different models that use the same crank, you can research this on line.
www.farmertec.com has an inexpensive aftermarket piston cylinder kit that I've used several times with good results and they can be found elsewhere also just be cautious of cheap parts.
I guarantee someone ran with straight gas,,,,,, ,,, overheated ,,that's why exhaust bolts were kinda welded in,,, worked on hese for 15 years
I got mine apart but can’t get the flywheel off. Any help? This is my first time tearing down one of these but want to learn
Loosen the flywheel nut to where the top of the nut is flush with the end of the shaft, then use the socket with a short extension (you may have to use a small spacer of some sort in the scoket to take up space) and tap the extension with a hammer (with some force) while either holding the engine up by the flywheel with your hand or by using something as a pry bar to put pressure onto the underside of the flywheel (being very careful not to break anything) and tap the extension while putting upward pressure onto the underside of the flywheel.
This may take several persuasive taps but it will break loose.
This is how I do more than 90% of mine.
GOOD LUCK
I have two 86C's, they are great vacs but lack the gutts of my Makita BHX2501 as blowers. Is it just a case of returning or are they just not as powerful?
I really can't comment on how they compare since I have no knowledge of the Makita BHX2501 model.
@@craigtimmons3468 fair enough, it just seems to have more balls!
Same problem. But I can't get the flywheel off, and the threads are now damaged.
Sorry to hear that. To remove the flywheel I run the flywheel nut to a point that it's just higher that the threads and using a brass hammer rapped on the nut firmly while holding the flywheel with the other hand while suspending the it a small distance above the bench.
As for the messed up threads you can try to run a 8mmx1.0 right hand thread Die on the crank to try and straighten out the threads. Good luck.
@@craigtimmons3468 Thanks for the tip. Got it off and found another bottom end and crank, so I'm good. Crank bearing seems good, a little side to side play, but no vertical or end play in the rod. Now just waiting for piston kit and hopefully get this bad boy running again. Your video is a major help. Thanks again.
My Stihl started last week, but this week is won't start. Everything is turning over on the pull, but no ignition. Suggestions?
When you say no ignition I'm assuming you mean its not popping, You do have gas in it right,, dump that gas out and try fresh gas, is it flooded? check for spark at the plug making sure its nice and blue and strong on the end of the center electrode, hows the compression feel, pull the muffler and check for scoring, this can keep it from running, try putting a little gas mix right down the carburetor and see if it starts
@@craigtimmons3468 I'm smelling gas and it's flooding when I'm trying to get it started.
It's not not firing.
I'll pull the spark plug tomorrow to see how it is. thanks,
those BG 55 are just like the bg86 they LOVE to eat rod bearings and not many parts surplus out in the wild either .
Your right and most people know this and want 4 times what it should cost
If you can wait a good deal generally comes around but it may take a few months.
I wish you had shown us how to take the engine out
Check this video out its an SH86C but i do show the engine removal which is almsot exactly like the BG55
ua-cam.com/video/Q33xLVP-3T0/v-deo.html
at 09:40 how about explain all the repeated 'whoa' reason for the viewer
The Whoa's were for all the metal fragments that was in the crankcase, that shortly after I showed the metal fragments and how the rod bearing was toast.
Nice Post-Mortem Craig!
Just a matter of lubrication!!!
Ohhh....nice little job...roll on 576 ...your going to be busy my friend....upload where u can....did you see my k760 screw up.....haha it's on the channel....
No I missed that somehow, I'll make sure I check that out
Warum unter titel andere Sprache nicht möglich????
Odd guy doing this. He ought to stop doing videos
This reply from someone who joined UA-cam 10 years ago has 4 yes 4 subscribers and no uploaded content and this person is TELLING ME I NEED TO STOP DOING VIDEOS. WOW🤯