Yard-Man Snowbird 7040-0 challenge - Snowblower Forum : Snow Blower Forums
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post #1 of 21 Old 09-05-2014, 07:30 AM Thread Starter
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Yard-Man Snowbird 7040-0 challenge

picked up this little gem locally for $30. it was headed for the scrapper. came in with no spark, but otherwise complete except for airbox. the belts are dry cracked but still work. got the belts adjusted so forward/reverse engage properly. today I want to pull the cover and check the points out.

the 7040-0 is a 5HP/22" model and uses a Tecumseh engine

this Snowbird is an unorthodox design compared to the other era Ariens, Gilsons, etc... It has a chain driven auger shaft and chute, solid studded tires, and articulating impeller housing. it's a tough design. the rear belt cover gives easy belt changes without having to split the machine apart like an Ariens. just remove 2 wing bolts and the cover comes off. The long spring on the left side for the belt clutch engagement, was disconnected on the bottom and also jammed behind a tightening bolt.

these machines come in with very easy fixes about half the time. others like my Gilson and Cadet have more serious problems. but they all have been serviceable and repairable - so far.








just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines

Last edited by greatwhitebuffalo; 09-05-2014 at 08:27 AM.
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post #2 of 21 Old 09-05-2014, 07:35 AM Thread Starter
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just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines

Last edited by greatwhitebuffalo; 09-05-2014 at 07:42 AM.
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post #3 of 21 Old 09-05-2014, 08:06 PM
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That old gem looks to be about the same vintage as me.
I like your sig. My sentiments exactly unless it's at a restaurant.

Joe

Sent from my junky old Hisense 7" tablet that I can barely see.
Toro 724
Toro CCR 3650E
Toro 5/21 sold
Ariens 5/22 ss ..Sold
Ariens Sno Tek 7/24 sold.
Old green plastic snow shovel... Sent.to shovel Heaven
Old quarry shovel for ice.
New.green shovel
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post #4 of 21 Old 09-05-2014, 09:07 PM
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Same vintage snowbird here on CL last week.. $25. It was complete w/no spark. I was tempted, but to many projects unfinished now.
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post #5 of 21 Old 09-06-2014, 07:34 AM Thread Starter
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any old Snowbird is worth saving and getting running. the guys that break them up for parts end up not making anything on the parts anyway. better off keeping them complete and selling to a collector in one piece.

I pulled the cover and gas tank, someone put in a complete new ignition system. new points, condenser, felt oiling pad, coil w/plug wire, ground wire to kill switch, spark plug are all brand spankin' new. yet no spark.

the points were not closing completely. I re-adjusted them and set gap at .020" put it all back together, still no spark.

so I put on an electronic ignition box, connected it directly to the kill switch wire, didn't even pull the cover again. pull the cord one time, it lit up like a taser gun. big time spark.

pulled the cover back off and removed the points/condenser, so they don't interfere with the electronic box spark. someone put new points/condenser etc. in this and it never ran again. that happens sometimes, there will be an internal short in the points, or the new condenser is bad. back in 1982 I put a new points/condenser in my 1970 Pontiac GTO (still have the car btw) and it would not start for 2 days. put the old condenser back in and it fired right up.

never trust brand new parts 100%. you can get defective ones. I also have a Champion spark plug that was in the pack new that I bought in a set of 8, that has no threads on it to screw it into the engine. it was never die threaded on the o.d. at the factory.








just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines

Last edited by greatwhitebuffalo; 09-06-2014 at 07:38 AM.
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post #6 of 21 Old 09-06-2014, 05:11 PM Thread Starter
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well she fired off quickly using the Nova II electronic module today, albeit running roughly at first. the carb was dirty and it would only idle with the choke partially closed. idle circuit was plugged, it was running on the main jet with idle turned up. the governor spring being stretched gave it a surging idle






just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines

Last edited by greatwhitebuffalo; 09-07-2014 at 07:02 AM.
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post #7 of 21 Old 09-06-2014, 05:25 PM Thread Starter
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after carb cleaning

the carb drain button was leaking, and carb needed to be cleaned. the idle mixture screw had no effect and the carb idle screw had to be cranked way up to get it to stay running. after cleaning it ran better and got some adjustment ability with the carb idle mixture screw. I made a tiny gasket for the inside carb drain button from 3 layers of electrical tape cut to a small circle with a tiny hole in the middle, and it stopped leaking. it then ran like this. the governor spring was stretched from age and dangling loose, so cut a few coils from it to tighten it up a bit. adjusted governor rod linkage to carb on the idle screw so the engine would not surge and hunt like it was initially. then it ran like this. I was able to idle it way down, and also go WOT and it ran well on both ends of the rpm range





just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines

Last edited by greatwhitebuffalo; 09-07-2014 at 07:04 AM.
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post #8 of 21 Old 09-06-2014, 05:27 PM Thread Starter
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Amsoil

the coupe de grace at the end is always an oil change with synthetic 10-30
Amsoil, the engine always respond well with quicker rpm and smoother running. then it ran like this





just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines
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post #9 of 21 Old 09-06-2014, 07:11 PM Thread Starter
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the Snowbird is not going down easy....was testing the forward/reverse drive and auger drive just now, and the pull cord broke.

then while trying to shut off the gas with the petcock under the tank, that petcock knob stripped and started leaking gas

fixed the pull cord simply by shortening it and re-attaching the pull handle, but have to buy a fuel shutoff and fittings now to fix the gas leak.

adjusted the belts and there's a very specific procedure involved, first the neutral setting must be set, then the forward setting adjusted. these belts are heavily worn but for now, the machine moves foreward/reverse and the augers engage.

oiled and greased all the chains, pivot points, wheels, linkages, chute interfaces, etc. and everything works smoothly.

the reverse engagement idler has to be adjusted, when putting it into reverse there's a tendency for it to occasionally stall out the engine at lower rpm, because the forward pulley is not disengaged far enough yet.




just say NO to Chinese made ANYTHING !
1967 S-242 Snowbird 4/24
AMF Dynamark Luminaire 5362 8/26 3-stage
Craftsman Drift Breaker 10/32 3-stage
Gilson 55012 8/26 gear drive
Ariens 910010 8/32
Cub Cadet 268 8/26
Yard-Man Snowbird 7040-0 5/22
Ariens 10M-L35 3.5/24
New Holland/Gilson Unitrol 8/26
(2) AMF Polar Bear 7/26 3-stage project/parts machines

Last edited by greatwhitebuffalo; 09-06-2014 at 07:13 PM.
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post #10 of 21 Old 09-06-2014, 08:26 PM
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Quote:
Originally Posted by greatwhitebuffalo View Post
the Snowbird is not going down easy....was testing the forward/reverse drive and auger drive just now, and the pull cord broke.

then while trying to shut off the gas with the petcock under the tank, that petcock knob stripped and started leaking gas

fixed the pull cord simply by shortening it and re-attaching the pull handle, but have to buy a fuel shutoff and fittings now to fix the gas leak.

adjusted the belts and there's a very specific procedure involved, first the neutral setting must be set, then the forward setting adjusted. these belts are heavily worn but for now, the machine moves foreward/reverse and the augers engage.

oiled and greased all the chains, pivot points, wheels, linkages, chute interfaces, etc. and everything works smoothly.

the reverse engagement idler has to be adjusted, when putting it into reverse there's a tendency for it to occasionally stall out the engine at lower rpm, because the forward pulley is not disengaged far enough yet.
Good to see it running. I tried to revive an old Gilson Made Montgomery Ward original Briggs 8HP/26 that I bought on Craigslist last year for $15.00 and I like you I changed the oil to Amsoil XL 10W30 1 quart oil capacity in the old Briggs and the darn carb had an leak in it and it was stumbling a bit. I then replaced the float needle and seat and tried it again and although it ran better It would ocaisonaly puff a bit of smoke especially when I started it up. Also the engine had a slow oil leak and it was leaking all over the new paint Job I gave it. I finally diagnosis it as worn valve guides since it was intermitant and oil is pushed up into the valve guides from below and then when enough accumulates it get thrown into the exhaust and you see a puff. I did not feel like rebuilding the old engine since it had the cool bore aluminum cylinder (No cast iron sleeve) and it leaked oil too. All new gaskets would be needed. I would have needed to take it to a machine shop to have new valve guides pressed in and all new valves and then I would need to adjust the valve lash plus the original camshaft could also be worn out too. I decided to cut my losses on the old engine. So I repowered it and it runs great now since the body of the machine is built with thick steel. Pretty heavy machine I say about 225lbs to 230lbs or so for the Unitrol 3 speed and they were considered relatively light weights compared to the higer end Gear drive models that Gilson made. Since their is a metal outrigger that goes towards the bucket area to the wheels you most likely can not upgrade to pnuematic tires. Post a video of the machine tossing snow this winter.

Mark

Last edited by GustoGuy; 09-06-2014 at 09:17 PM.
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