BCMAEngines
02-14-2008, 10:50 PM
#1876
Junior Member
Join Date: Mar 2007
Location: Parker,
CO
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
He mentioned that he'd had some trouble with that particular carb and ended up replaced mine with another brand. Zama -> Walbro ??? (I'm new to this game and can't keep track of all the names ...) He tried to start it just as I brought it to him. Did the same thing for him that it did for me -- ran for several seconds, then died. Did some adjustments; got same result. Replaced carb with another of the same manufacturer; same result. Switched brands. Started right up.
Incidentally, Adam has a 24V drill that he uses to start these motors. Worked like a charm. I'm going to try the same with my 19.2V and see if it has enough oomph.
I have to mention that Adam has a very well tuned ear, sort of "perfect pitch" for 2-cycle engines. He's been doing this for a while (and used to repair lawn mowers), and can instantly tune one of these engines by ear. Took less than a minute of tweaking and the transitions were perfect.
Rog
Incidentally, Adam has a 24V drill that he uses to start these motors. Worked like a charm. I'm going to try the same with my 19.2V and see if it has enough oomph.
I have to mention that Adam has a very well tuned ear, sort of "perfect pitch" for 2-cycle engines. He's been doing this for a while (and used to repair lawn mowers), and can instantly tune one of these engines by ear. Took less than a minute of tweaking and the transitions were perfect.
Rog
02-15-2008, 05:50 AM
#1877
Senior Member
Join Date: Aug 2002
Location: Appleton,
WI
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
Interesting! Have only talked to him on the phone and exchanged e-mails. Always a treat! Thanks for the info! Every bit of information we share may help others!
Andy
Andy
02-15-2008, 11:35 AM
#1878
Senior Member
My Feedback: (92)
Join Date: Sep 2004
Location: Longmont, CO
Posts: 340
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
Hi Guys
I met Roger yesterday and that was a real pleasure. What a great guy! We bench ran a couple of engines and got them all tuned up and ready to go. The Zama carb I had originally put on his engine had a bad lower diaphram and for some reason once the engine fired up the valve on the main jet was shutting off fuel??? Several of my Zamas are doing this for reasons I do not know. I put a Walbro WT-433 on there and with some minor tuning the engine is running sweet!
Roger also took home with him one of my pride and joy's, my gorgegous 1/4 scale Supercraft Monocoupe A-90. He is going to drop his BCMA-SPE40 in it and its going to be awesome in the air. Its designed for a 26cc but hey, the elevation up here around mile high city makes us have to up the ante on power. With the 40cc Engine, power will not be a limiting factor in this plane. I would expect pretty much unlimited vertical and very short take-offs, like 8 feet!
This goes for everyone, anyone within driving distance of me is more than welcome to come by for a visit whether to tune or repair an engine, or just to shoot some bull. You are welcome at BCMAEngines. This spring I am going to start touring some flying fields and I plan on giving some tee-shirts.
I met Roger yesterday and that was a real pleasure. What a great guy! We bench ran a couple of engines and got them all tuned up and ready to go. The Zama carb I had originally put on his engine had a bad lower diaphram and for some reason once the engine fired up the valve on the main jet was shutting off fuel??? Several of my Zamas are doing this for reasons I do not know. I put a Walbro WT-433 on there and with some minor tuning the engine is running sweet!
Roger also took home with him one of my pride and joy's, my gorgegous 1/4 scale Supercraft Monocoupe A-90. He is going to drop his BCMA-SPE40 in it and its going to be awesome in the air. Its designed for a 26cc but hey, the elevation up here around mile high city makes us have to up the ante on power. With the 40cc Engine, power will not be a limiting factor in this plane. I would expect pretty much unlimited vertical and very short take-offs, like 8 feet!
This goes for everyone, anyone within driving distance of me is more than welcome to come by for a visit whether to tune or repair an engine, or just to shoot some bull. You are welcome at BCMAEngines. This spring I am going to start touring some flying fields and I plan on giving some tee-shirts.
02-17-2008, 08:39 AM
#1882
Member
My Feedback: (11)
Join Date: Feb 2003
Location: lansing,
MI
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
i have read this entire forum finally and i cant wait to get mine, have a 40 and the 28%edge on the way should be here tuesday. great forum by the way and i have talked wiith adam also, he knows the engine that i am getting personaly, and if your reading this adam i am the guy(Bob) who was talking with you when you had an emgency come up. i went with what you said about evrything and its on its way cant wait to fire up that engine and of course for our field to give way to spring...
02-18-2008, 04:28 PM
#1884
Senior Member
Join Date: Nov 2007
Location: newark, UNITED KINGDOM
Posts: 525
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
I just bought a 26. Mixed feelings about it:-
1. The engine is factory run. Which I'm not fussed about as the pulse port was a bit rough and had marked the piston. No real bother, but I ground it out in the liner to stop it getting worse.
2. The shaft oil seals weren't pressed in square. Just a niggle, but I bedded them down.
3. Screws were (as expected) loose. The inlet manifold gasket had split because of that, probably when they ran it. Gaskets in general are very soft and flimsy. They will pull to pieces if you dissasemble your engine. I made new ones.
4. Prop bolt is a naff and soft lump of ironmongery that is functional but rough.
5. Threads in the prop driver for the 2 anti-rotation bolts needed tapping, rather than just winding the screws in.
6. The inlet manifold chokes down for no reason other than it doesn't match the carb. It needs opening by a mil all around.
But:-
a) It's a very light weight engine. Much lighter than a Homelite and probably not much more than a 120 four stroke.
b) The main components such as the crank, rod and piston look like they will last forever.
c) It's very 'cute'
d) The price is very good.
So, I will be running it soon and expect it will be absolutely fine. But, I wouldn't recommend running one straight out of the box as a raw beginner.
1. The engine is factory run. Which I'm not fussed about as the pulse port was a bit rough and had marked the piston. No real bother, but I ground it out in the liner to stop it getting worse.
2. The shaft oil seals weren't pressed in square. Just a niggle, but I bedded them down.
3. Screws were (as expected) loose. The inlet manifold gasket had split because of that, probably when they ran it. Gaskets in general are very soft and flimsy. They will pull to pieces if you dissasemble your engine. I made new ones.
4. Prop bolt is a naff and soft lump of ironmongery that is functional but rough.
5. Threads in the prop driver for the 2 anti-rotation bolts needed tapping, rather than just winding the screws in.
6. The inlet manifold chokes down for no reason other than it doesn't match the carb. It needs opening by a mil all around.
But:-
a) It's a very light weight engine. Much lighter than a Homelite and probably not much more than a 120 four stroke.
b) The main components such as the crank, rod and piston look like they will last forever.
c) It's very 'cute'
d) The price is very good.
So, I will be running it soon and expect it will be absolutely fine. But, I wouldn't recommend running one straight out of the box as a raw beginner.
02-18-2008, 05:20 PM
#1886
Senior Member
Join Date: Aug 2002
Location: Appleton,
WI
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
ORIGINAL: dogshome
I just bought a 26. Mixed feelings about it:-
1. The engine is factory run. Which I'm not fussed about as the pulse port was a bit rough and had marked the piston. No real bother, but I ground it out in the liner to stop it getting worse.
2. The shaft oil seals weren't pressed in square. Just a niggle, but I bedded them down.
3. Screws were (as expected) loose. The inlet manifold gasket had split because of that, probably when they ran it. Gaskets in general are very soft and flimsy. They will pull to pieces if you dissasemble your engine. I made new ones.
4. Prop bolt is a naff and soft lump of ironmongery that is functional but rough.
5. Threads in the prop driver for the 2 anti-rotation bolts needed tapping, rather than just winding the screws in.
6. The inlet manifold chokes down for no reason other than it doesn't match the carb. It needs opening by a mil all around.
But:-
a) It's a very light weight engine. Much lighter than a Homelite and probably not much more than a 120 four stroke.
b) The main components such as the crank, rod and piston look like they will last forever.
c) It's very 'cute'
d) The price is very good.
So, I will be running it soon and expect it will be absolutely fine. But, I wouldn't recommend running one straight out of the box as a raw beginner.
I just bought a 26. Mixed feelings about it:-
1. The engine is factory run. Which I'm not fussed about as the pulse port was a bit rough and had marked the piston. No real bother, but I ground it out in the liner to stop it getting worse.
2. The shaft oil seals weren't pressed in square. Just a niggle, but I bedded them down.
3. Screws were (as expected) loose. The inlet manifold gasket had split because of that, probably when they ran it. Gaskets in general are very soft and flimsy. They will pull to pieces if you dissasemble your engine. I made new ones.
4. Prop bolt is a naff and soft lump of ironmongery that is functional but rough.
5. Threads in the prop driver for the 2 anti-rotation bolts needed tapping, rather than just winding the screws in.
6. The inlet manifold chokes down for no reason other than it doesn't match the carb. It needs opening by a mil all around.
But:-
a) It's a very light weight engine. Much lighter than a Homelite and probably not much more than a 120 four stroke.
b) The main components such as the crank, rod and piston look like they will last forever.
c) It's very 'cute'
d) The price is very good.
So, I will be running it soon and expect it will be absolutely fine. But, I wouldn't recommend running one straight out of the box as a raw beginner.
02-18-2008, 06:13 PM
#1887
Senior Member
Join Date: Nov 2007
Location: newark, UNITED KINGDOM
Posts: 525
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
Regular SPE.
Now it's back together, I think it will be a useful engine. The light weight is definitely worth having.
There is nothing significantly wrong with it. But, it isn't 'fit and forget'. More 'fix bugs, fit and forget'
Now it's back together, I think it will be a useful engine. The light weight is definitely worth having.
There is nothing significantly wrong with it. But, it isn't 'fit and forget'. More 'fix bugs, fit and forget'
02-18-2008, 07:28 PM
#1888
Senior Member
Join Date: Aug 2002
Location: Appleton,
WI
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
ORIGINAL: dogshome
Regular SPE.
Now it's back together, I think it will be a useful engine. The light weight is definitely worth having.
There is nothing significantly wrong with it. But, it isn't 'fit and forget'. More 'fix bugs, fit and forget'
Regular SPE.
Now it's back together, I think it will be a useful engine. The light weight is definitely worth having.
There is nothing significantly wrong with it. But, it isn't 'fit and forget'. More 'fix bugs, fit and forget'
Andy
02-18-2008, 08:44 PM
#1889
Member
Join Date: May 2006
Location: Bellingham,
WA
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
Adam is a cool guy to talk to. That's if your lucky to get him on the phone. Sound's like he's a pretty busy guy. I Felt bad taking 30min. of his day talking about my motor, sorry guys haha Anyway my motor is in the mail ready to be made into a BCMA engine. Can't wait to get it back. -Todd
Anyway my motor is in the mail ready to be made into a BCMA engine. Can't wait to get it back. -Todd
02-19-2008, 02:58 PM
#1890
Senior Member
Join Date: Nov 2007
Location: newark, UNITED KINGDOM
Posts: 525
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
ORIGINAL: Flyer Freq
Gotcha!
Gotcha!
My big problem with the engine is; what plane to put it in! 70" Yak has a 180 four stroke (and is perfect in every way
). 80+" Megawot has the DL50. 63" Edge has 180 four stroke. I need something like a clipped wing Cub or another Yak [
]
02-19-2008, 03:14 PM
#1891
Senior Member
Join Date: Aug 2002
Location: Appleton,
WI
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
ORIGINAL: dogshome
I could see a loaded question from 20 paces, but decided to take the hit anyway
My big problem with the engine is; what plane to put it in! 70" Yak has a 180 four stroke (and is perfect in every way ). 80+" Megawot has the DL50. 63" Edge has 180 four stroke. I need something like a clipped wing Cub or another Yak []
ORIGINAL: Flyer Freq
Gotcha!
Gotcha!
My big problem with the engine is; what plane to put it in! 70" Yak has a 180 four stroke (and is perfect in every way
). 80+" Megawot has the DL50. 63" Edge has 180 four stroke. I need something like a clipped wing Cub or another Yak []
This engine fits great in many .60 size aircraft, all the way up to 1.20 size. Depends on whether you want scale performance or 3D performance. A 70" aerobat would be a little bit large for the 26CC. A 1.20 size cub would probably be pretty nice. Decisions, decisions! Fun isn't it???
A few pages back, someone was fitting one to a Kangke 20% Monocoupe (http://www.kangkeusa.com/superkraft.htm). That would be a fun combo. There are so many combo's to choose from! You just might have to try them all! Adam has a cool 3D bird on his website, as well. Have fun!
02-22-2008, 08:42 PM
#1892
Join Date: Jun 2007
Location: Lisle,
IL
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
New Question:
I bought the BCMA 26cc motor.
Does anybody know what or if there is a smoke muffler for this engine? A link would be much appreciated.
Thanks,
Dan
I bought the BCMA 26cc motor.
Does anybody know what or if there is a smoke muffler for this engine? A link would be much appreciated.
Thanks,
Dan
02-22-2008, 10:28 PM
#1894
Join Date: Jun 2007
Location: Lisle,
IL
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
Oh, ok I didn't see them on his web site.
If there not listed there he should put them on his accessories page. More $$$.
That's a good idea though.
thanks a lot.
If there not listed there he should put them on his accessories page. More $$$.
That's a good idea though.
thanks a lot.
02-22-2008, 10:37 PM
#1895
Join Date: Jun 2007
Location: Lisle,
IL
Posts: 116
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
While I'm here...
I have ANOTHER question:
I actually did get Adam's opinion on this one.
What is your opinion(s) on rubber mounts to reduce engine vibration?
I bought some chain saw engine mounts for my 4*. I've heard several opinions now whether they do work or not.
1) they work
2) they work, but only when the plane is on the ground
3) not really
Any body tested this (some how)?
Thanks,
Dan
I have ANOTHER question:
I actually did get Adam's opinion on this one.
What is your opinion(s) on rubber mounts to reduce engine vibration?
I bought some chain saw engine mounts for my 4*. I've heard several opinions now whether they do work or not.
1) they work
2) they work, but only when the plane is on the ground
3) not really
Any body tested this (some how)?
Thanks,
Dan
02-23-2008, 06:46 PM
#1896
Senior Member
My Feedback: (12)
Join Date: Sep 2005
Location: Butte,
MT
Posts: 1,626
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
I think anytime you can minimize vibration on your airframe it's a bonus, it will definately add life to your plane. Except if it takes a dirt nap...lol I've actualy been looking at Hyde soft mounts for mine, not sure which ones I want but they are nice.
Shane
Shane
02-24-2008, 08:48 PM
#1897
Junior Member
Join Date: Nov 2007
Location: Newport News,
VA
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
Can I use the standoffs that come with this 40cc engine as mounts? Or do I need to use blocks of wood instead? If so what are the aluminum stand offs for?
02-24-2008, 08:50 PM
#1898
Junior Member
Join Date: Nov 2007
Location: Newport News,
VA
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
The plane is the lanier stinger 120. First time gasser. But plenty of experience with radios/engines/planes. Just concerned that the shaking of the gas engine may cause alot of stress to the firewall.(engine mounting surface)
02-24-2008, 09:14 PM
#1899
Senior Member
Join Date: Oct 2005
Location: Brisbane, AUSTRALIA
Posts: 323
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
ORIGINAL: jpl572103
The plane is the lanier stinger 120. First time gasser. But plenty of experience with radios/engines/planes. Just concerned that the shaking of the gas engine may cause alot of stress to the firewall.(engine mounting surface)
The plane is the lanier stinger 120. First time gasser. But plenty of experience with radios/engines/planes. Just concerned that the shaking of the gas engine may cause alot of stress to the firewall.(engine mounting surface)
02-24-2008, 10:15 PM
#1900
Senior Member
Join Date: Aug 2002
Location: Appleton,
WI
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
RE: BCMAEngines
ORIGINAL: bjor
Mate. I have my BCMA / SPE 40 mouted in a 70 inch seagull Extra 260 (1.20 size) with no issues. Use the stand offs provided, but make sure if you run in the engine the wings are mounted on the airframe - this helps reduce / absorb the vibration. Also - not familiar with the Lanier, but adding strength to the fire wall with triangular stock, fibreglass or just 30min epoxy will always help. Go fly - have fun, the BCMA / SPE engines are great
ORIGINAL: jpl572103
The plane is the lanier stinger 120. First time gasser. But plenty of experience with radios/engines/planes. Just concerned that the shaking of the gas engine may cause alot of stress to the firewall.(engine mounting surface)
The plane is the lanier stinger 120. First time gasser. But plenty of experience with radios/engines/planes. Just concerned that the shaking of the gas engine may cause alot of stress to the firewall.(engine mounting surface)