combustneer smoking need help

hay uall my stove is smoking out from behind the trans. Can anybody tell me why and how to fix it

mod 77b

Not sure of your exact stoker or model, but I would start with making sure my heat exchanger and stack is clear of fly ash and drafting correctly.

A bit more info, Picture, etc.. would help. Probably a gasket, a blockage, needs cleaning, etc.....

its a mod 77b combustoneer by wilbuilt the big brown one we just complety cleaned it and the flue the smoke is comming out from behind the trans its the same smoke that comes out of the hopper when its low on coal

I had a smoke problem with my Anchor Stoker, probably built similar to your combustioneer.
I sealed the coal bin to the auger with blue RTV sealant, then sealed the gear box to the bin, and then worked with the door gasket, should have replaced but haven't found a good material of the correct shape, smoke has stopped.

Some stokers had a 3/8 tube from the air supply, after the blower before the twyres, and into the coal bin, this puts a small positive preasure in the bin keeping the smoke from coming down the auger into the bin. This cure if done with to much air would probalby cause the fire to chase the air up the auger, in other words be careful about using to much air.

Berlin would be a great resource on this subject.

be sure your stack draft is set at .04 and that there is not excessive soot/flyash buildup where the three pipes go through the heat exchanger. Make sure your underfire air fan is not set to blow too much air through the fire. The area you're talking about should be sealed and there shouldn't be smoke exiting there regardless of the previous things i mentioned however. The main problem is that your seal between the auger tube flange and the transmission is shot - this is a simple fix; remove the four bolts on the transmission and pull it out of the way, then scrape/clean the old seal material off and go to any autoparts house and buy a sheet of cork gasket maker. cut seal to fit and apply grey silicone to both sides as well, reinstall. your problem will be solved.

I knew ''the man" would have the answer !!

Thanks Berlin.

Hope you have a safe and Merry Christmas.

Greg L

thanks Greg, have a good Christmas too

thx for the insite berlin but i found my prob i had a hole in behind my moter mount about 2in by 4in i patched that and caulked it good no more smoke when i redo it this spring ill do what you said to be on the safe side

merry christmas to alll of ya and thx for the help