2-stage / 2-stroke Machines ??? - Snowblower Forum : Snow Blower Forums
Reply
 
LinkBack Thread Tools
post #1 of 14 Old 01-01-2018, 08:54 AM Thread Starter
Senior Member
 
tpenfield's Avatar
 
Join Date: Feb 2015
Location: Massachusetts
Posts: 1,040
Post Thanks / Like
Thanks (Given): 48
Thanks (Received): 56
Likes (Given): 127
Likes (Received): 190
Garage
2-stage / 2-stroke Machines ???

Happy 2018 Everyone,

I have come across a somewhat unique machine - a Toro 726TE - which is a 2-stage blower with a 7 HP 2-stroke engine. I was not familiar with this Toro model, as my experience is mostly with the older Toro 2-stage machines. I have commonly associated the 2-stroke engines with the smaller single-stage machines, figuring it was primarily for weight reduction purposes.

I see that @tdipaul has posted a bit about these machines, just looking for some comment about . . .

Does the 2-stroke engine give smoother power, having 1 power stroke per revolution vs. the 4-stroke's 1 power stroke per 2 revolutions?

Since the engine oil is delivered via the fuel, is there an RPM advantage to the 2-strokes, since the 4-stroke engines are generally limited to 3600 RPM for reliable lubrication?

I also see that these machines were only made for a few years . . . any particular reason they were discontinued?

Anything particular about the "R-Tek" 2-cycle engine that makes it good/bad?

I have a few outboard boat engines, so pretty familiar with 2-strokes, just wondering how that plays out on a mid-sized (26") 2-stage machine?

Thanks in advance (TIA) for any comments about "2-stage/2-stroke" machines in general and/or this Toro 726TE model.

Regards, Ted
.
Current & Past Fleet:
2017 Husqvarna ST224 (SOLD)
2014 Troy-Bilt 2410 w/ Briggs & Stratton 305cc Engine
2003 Ariens ST824LE (SOLD)
1999 Toro PowerShift 824 w/ 318cc OHV Tecumseh Engine
1988 Toro 521 w/ 212cc Predator Engine
1985 Toro 3521 w/ 179cc Powermore Engine (SOLD)
tpenfield is offline  
Sponsored Links
Advertisement
 
post #2 of 14 Old 01-01-2018, 09:40 AM
Senior Member
 
Join Date: Oct 2017
Posts: 179
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 28
Likes (Given): 5
Likes (Received): 41
The main sales point was easier /less maintenance and lighter engine. They didn't sell very good and emissions laws was most likely what killed them. We still use one as a beater at the shop it's loud but throws good.
351beno is offline  
post #3 of 14 Old 01-01-2018, 10:06 AM
Super Moderator
 
sscotsman's Avatar
 
Join Date: Dec 2010
Location: Western NY, USA
Posts: 3,664
Post Thanks / Like
Thanks (Given): 61
Thanks (Received): 336
Likes (Given): 148
Likes (Received): 764
The 2-stroke makes sense where very small engines are needed, like weed wackers and chain saws..but I dont see any advantage for a snowblower...also, people dont want to mix oil with the gas, if they have the option not to. (I bet that is the main reason they arent used! people want to be as lazy as possible..that, plus the fact that they simply arent needed..)

Ariens also tried it in the 80's..they didnt last long..

Scot


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
sscotsman is online now  
post #4 of 14 Old 01-01-2018, 11:46 AM
Senior Member
 
Join Date: Nov 2017
Posts: 1,163
Post Thanks / Like
Thanks (Given): 21
Thanks (Received): 63
Likes (Given): 254
Likes (Received): 239
The biggest advantage to 2 stroke are lighter weight, more power in a smaller package. The smell of 2 stroke exhaust (call me nuts but that smells like summer to me), and there are 27 less moving parts in a two stroke, to one part similar sized, HP wise, four stroke. Less to go wrong, not that much ever does.
jsup is offline  
post #5 of 14 Old 01-01-2018, 01:16 PM Thread Starter
Senior Member
 
tpenfield's Avatar
 
Join Date: Feb 2015
Location: Massachusetts
Posts: 1,040
Post Thanks / Like
Thanks (Given): 48
Thanks (Received): 56
Likes (Given): 127
Likes (Received): 190
Garage
Thanks for the replies so far . . . I guess it is an idea that did not work out.

Don't see any real advantage except weight. It seems like they are getting the 7 HP out of about 141cc vs. 208cc on a 4 stroke, if I recall correctly.

Probably more of a collector's item vs. an advantage type of machine.

Regards, Ted
.
Current & Past Fleet:
2017 Husqvarna ST224 (SOLD)
2014 Troy-Bilt 2410 w/ Briggs & Stratton 305cc Engine
2003 Ariens ST824LE (SOLD)
1999 Toro PowerShift 824 w/ 318cc OHV Tecumseh Engine
1988 Toro 521 w/ 212cc Predator Engine
1985 Toro 3521 w/ 179cc Powermore Engine (SOLD)
tpenfield is offline  
post #6 of 14 Old 01-01-2018, 06:40 PM
Junior Member
 
Join Date: Aug 2017
Posts: 10
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 1
Likes (Given): 0
Likes (Received): 4
There is nothing wrong with them - as far as the motor goes it has horsepower to spare, and with modern synthetic two stroke mix the smoking is almost non-existant.

I just spent the weekend getting used to my Powermax 6000 with the same engine, and it gives up nothing to the newer machines as far as throwing snow.

I only have a couple of beefs with it - first, a quart and a half fuel capacity. And it likes fuel.

Second, the lightweight of the machine is fine for turning and wrestling around, but I'm thinking about adding a weight to the front to keep the auger down and digging into berms from the snowplow.
GPzEric is offline  
post #7 of 14 Old 01-01-2018, 07:17 PM
Senior Member
 
Clutch Cargo's Avatar
 
Join Date: Dec 2015
Location: Maine
Posts: 230
Post Thanks / Like
Thanks (Given): 27
Thanks (Received): 15
Likes (Given): 33
Likes (Received): 38
IMHO, it was an answer to a question nobody asked. The PTWR of a 2-stroke is really of no advantage in a snowblower.

2015 Ariens Deluxe 28
Previous Machines:
1995 Yard-White-Bilt 8/26 Frankenblower
1980 Toro 826
1981 Toro 3521
Clutch Cargo is offline  
post #8 of 14 Old 01-01-2018, 07:45 PM
Junior Member
 
Join Date: Aug 2017
Posts: 10
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 1
Likes (Given): 0
Likes (Received): 4
The reason I bought my Powermax 6000 was to get the 2 cycle engine.

My dead fathers CCR3000 single stage was and is an animal, up to a foot of snow, and it's 30 years old and still going strong.

I figured if the bigger RTek motor in the Powermax lasted half as long it'll last me the rest of my life.
GPzEric is offline  
post #9 of 14 Old 01-01-2018, 08:09 PM
Senior Member
 
Clutch Cargo's Avatar
 
Join Date: Dec 2015
Location: Maine
Posts: 230
Post Thanks / Like
Thanks (Given): 27
Thanks (Received): 15
Likes (Given): 33
Likes (Received): 38
Quote:
Originally Posted by Clutch Cargo View Post
IMHO, it was an answer to a question nobody asked. The PTWR of a 2-stroke is really of no advantage in a snowblower.
I should clarify - two stage snowblower.
Clutch Cargo is offline  
post #10 of 14 Old 01-01-2018, 08:13 PM
Junior Member
 
Join Date: Aug 2017
Posts: 10
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 1
Likes (Given): 0
Likes (Received): 4
You are right - power-to-weight ratio is important in a chainsaw, or weedeater, but not a machine that stays planted on the ground
GPzEric is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Snowblower Forum : Snow Blower Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome