Is it a 024 or a 026
- Thread starter chrracbec
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Lawn Masters
Addicted to ArboristSite
the 024, and 026, are basically the same model, only real difference, that I know of anyway, is the displacment. the 024, is smaller and the 26 has a bit more to it. thats the hard part about this model, one can almost never be sure which it is unless one can measure the bore, and stroke.
sedanman
Just cut the piano!!
Early 024's only had one bar nut.
jlaplant
ArboristSite Lurker
I think one of the changes Stihl made on the 026 was a see through gas tank . The 024 was solid white . I have a 026 and have used a 024 . I don't think there was any difference in the way they cut .
bcorradi
Arboristsite.com Sponsor
024 or 026
If the top shroud isn't perfectly flat (has a slight downward slope towards the air filter its an 24). Also if you look at the air filter, a 24 air filter is wider then tall, and a 26 air filter is taller then wide. Also like sedanman said, if it has one barstud/barnut its definately a 24.
There are more clues internally that will help you determine which model it is.
1) If the cylinder is flat on top its an 24. An 26 cylinder has fins protruding upwards.
2) All 24's except the 24 Super had a shorter stroke then the 26 so they used a different connecting rod (part prefix 1114 vs 1121).
If the top shroud isn't perfectly flat (has a slight downward slope towards the air filter its an 24). Also if you look at the air filter, a 24 air filter is wider then tall, and a 26 air filter is taller then wide. Also like sedanman said, if it has one barstud/barnut its definately a 24.
There are more clues internally that will help you determine which model it is.
1) If the cylinder is flat on top its an 24. An 26 cylinder has fins protruding upwards.
2) All 24's except the 24 Super had a shorter stroke then the 26 so they used a different connecting rod (part prefix 1114 vs 1121).
16gauge
ArboristSite Operative
chrracbec said:
Welcome aboard chrracbec. Just a thought, split the differece and call it an 025!
Thanks for the replys, the cylinder does have fins on top. Top cover is staight back, air filter is taller than it is wide, also seen number 1121 on side of cylinder, and gas tank is see thru. Thanks for help.
Lakeside53
Stihl Wrenching
chrracbec said:
Sounds like an 026. The 1121 is found on on both 026 and 024. Another small clue, except for the VERY LATE model 024, the ground wire from the shut off switch terminated on the top buffer on the 024, and on the coil screw on the 026.
In answer to an earlier post, the see-though tank is only on 026, but only on some models - there are plenty of 026's out there with solid tanks. Be careful on with the "one bar nut" :MANY 024 have had the second blind stud removed and replaced with a "real stud"
WadePatton
ArboristSite Guru
24/26 discussion cont'd
Okay, I've got a 24 super. What exactly do I gain by going to a 26 piston/jug set?
If it's already "stroked" and I add bore (assuming the 26 bore is greater)--how much displacement will I wind up with? If the 26 bore is the same, then what's the point?
And how much muffler carving should I do?
Thanks.
Okay, I've got a 24 super. What exactly do I gain by going to a 26 piston/jug set?
If it's already "stroked" and I add bore (assuming the 26 bore is greater)--how much displacement will I wind up with? If the 26 bore is the same, then what's the point?
And how much muffler carving should I do?
Thanks.
Lakeside53
Stihl Wrenching
WadePatton said:
The stoke is the same, the 026 bore is 46mm, 2mm more than an 024 super. You end up with a 48.7cc saw. HOWEVER, you will also need to change the air filter, air filter cover, and top shroud... Without muffler mods the power increases 0.4hp, from 3.1 to 3.5hp.
EDIT: the 26 is a 44mm bore, not 46... see later post for table
Last edited:
WadePatton
ArboristSite Guru
Thanks, I'll look for that stuff too.
Then what's the diff in the 024 and 024s? Just curious.
Then what's the diff in the 024 and 024s? Just curious.
Lakeside53
Stihl Wrenching
WadePatton said:
The 024 has less stroke (2mm) and a 42mm bore.
If I was you I'd just leave the 024S aline... It's a nice saw and peforms real well...
bcorradi
Arboristsite.com Sponsor
Lakeside53 said:
A 24 super to my knowledge has the same 44mm bore as the 26. All other 024's (AV, Woodboss, etc) have a 42mm bore and a 2mm shorter stroke.
Lakeside53
Stihl Wrenching
bcorradi said:
Sorry... not true... but I typed it all wrong anyhow! The 24S and 26 have the same stroke, but different bores.
here is is again, without typos:
24 = 42mm bore, 30mm stroke, 42cc, 2.85bhp
24S = 42mm bore, 32mm stroke, 44.3cc, 3.1bhp
26 = 44mm bore, 32mm stroke, 48.7cc, 3.5bhp
SawTroll
Information Collector
Lakeside53 said:
How about bore and stroke in the latest 50.2 cc, 3.2bhp 260s?
45/32 ?
SawTroll
Information Collector
Dave,
the new specs did not come when the 026 became the MS260, but just over a year ago.
It is probably an EPA-related change.
Over here they also changed the displacement, but the rated power output remains at 3.5hp (3.4bhp).
Most other small Stihl saws also lost power (rating) - usually .1kW, while it was .2kW for the 260.
the new specs did not come when the 026 became the MS260, but just over a year ago.
It is probably an EPA-related change.
Over here they also changed the displacement, but the rated power output remains at 3.5hp (3.4bhp).
Most other small Stihl saws also lost power (rating) - usually .1kW, while it was .2kW for the 260.
WadePatton
ArboristSite Guru
Yeah, now I'll believe that--I was getting conflicting info on the stroke. The 24s is a stroked 24 and the 26 is the 24s with larger bore. mmmhumm.Lakeside53 said:
I may leave it as is until I get all the parts piled up and have some time and a wild hair. The 24s is still has great compression...just haven't run it in five or six years. I used to saw red cedar for the mill with it. I know it was light years ahead of the old poulans and homelites we used to mess with. But then my uncle's 032 made it feel a bit weak.
Lakeside53
Stihl Wrenching
SawTroll said:
The bore is 44.7mm (figure that one out!); the stroke remains the same.
Just a thought- does anyone know if the older 026 cylinder/piston mount on the NEW 260, and whether the muffler fits? None of my customers have blown up their newer 260's yet, so I haven't had a chance to see if it all matches up. Would put a crimp in the fix-it market if you can't use the older style cylinder/piston.
