026 air filter cover problem

[bigrichard81]

I purchased a 026 that has a crack on the air filter cover. I purchased a replacement and it is a lot shorter than the one in the saw. Come to find out there are all sorts of configurations for these saws. Where in the world do I get one that is similar to what is on my saw?

 

[82F100SWB]

I think your replacement may be for an 024 not a 026, they are shorter in height overall.

 

[gmctyphoon]

I probably have a good one, PM me if you’re interested.

 

[Mad Professor]

You have a later 026 that came with the larger air filter. Cover has a lever.

The small one is for an early 026 with small air filter. Cover has a knob.

See attachment, it has part #s

 

[82F100SWB]

Both of those covers are flat top, later with the lever are rounded on top to match the later top cover. I think that shorter cover is for an 024.

 

[Mad Professor]

Both of those covers are flat top, later with the lever are rounded on top to match the later top cover. I think that shorter cover is for an 024.

See the attachment I posted.

Early and late 024 also had the same change in covers

 

[82F100SWB]

I didn't think the 024 was around for that change? Pretty sure 94 was the end of the line.
This is an early cylinder cover with a late filter cover, you will notice it is the same height:


I know the 024 covers are short enough that an 026 cylinder won't fit under them without machining the fins on top. Random 024 from google:


Notice how the top cover slopes down at the back of the saw, and how much shorter the air filter cover is to match it.

 

[Mad Professor]

I didn't think the 024 was around for that change? Pretty sure 94 was the end of the line.
This is an early cylinder cover with a late filter cover, you will notice it is the same height:
View attachment 802582

I know the 024 covers are short enough that an 026 cylinder won't fit under them without machining the fins on top. Random 024 from google:
View attachment 802583

Notice how the top cover slopes down at the back of the saw, and how much shorter the air filter cover is to match it.

See #1 on picture from 024 IPL pg. 24.



stihl part # 1121 140 1904 Carburetor box cover

Then see pgs. 4-5, in the 026 service notice I posted above as an attachment:



11 Carburetor box cover Old version 1121 140 1902 New Version 1121 140 1904

Same part number, for upgraded cover 024 and 026

 

[drf255]

The pic you show of the two covers alone is an 024 and 026 cover. The arrow on an 024 cover ends just before the top curves. On the 026, there is a definite space between the point of the arrow and the top curve.

The cover installed on the saw isn’t an 1121 cover. Maybe 1125 (034/6)?

The MS260 covers are curved both ways. Unlike the 024/026 cover. They have a top arch with longitudinal grooves in them and a lever-they won’t clip onto the old style filter.

 

[HarleyT]

The cover installed on the saw isn’t an 1121 cover. Maybe 1125 (034/6)?

On the inside of these parts, you will find some numbers with the family prefix.

 

[pioneerguy600]

Check to see if it has a 1123 suffix number inside the cover, it looks like it came off a 023L model.

 

[bigrichard81]

The short one has 1121 141 1000 stamped inside.
The taller one that is on the saw has 1121 141 1001 stamped inside.


It looks like I need a 1121 140 1902 according to the IPL.

 

[HarleyT]

Check to see if it has a 1123 suffix number

Is that a Canadian/metric word for "prefix"?

I haven't been up there for a while. Do they still drive on the correct side of the road?

 

[HarleyT]

https://www.ebay.com/itm/STIHL-CHAI...477969&hash=item522ac94d5b:g:tz0AAOSwaEhZMIuU

Here is one on E-bay....

Kind of pricey...

 

[82F100SWB]

Same part number, for upgraded cover 024 and 026

The 024 super with the 026 stroke crank uses the standard cover and filter, the 024 uses a half height filter and the short cover.
Again, stolen picture from Google as I don't have an 024 at the moment:

 

[pioneerguy600]

Is that a Canadian/metric word for "prefix"?

I haven't been up there for a while. Do they still drive on the correct side of the road?

What side is correct John?

 

[HarleyT]

I always wondered what happened on borders of 2 countries, that drove on different sides of the road.
Could be messy.....

The 024 super with the 026 stroke crank uses the standard cover and filter, the 024 uses a half height filter and the short cover.
Again, stolen picture from Google as I don't have an 024 at the moment:

Yeah, these guys would give you hell,

if you didn't tell us that the photo was off of the internet...

 

[82F100SWB]

Yeah, these guys would give you hell,

if you didn't tell us that the photo was off of the internet...

No doubt, those filters are both a bit beyond seviceable... LOL

 

[drh]

@bigrichard81 This is a long shot but do you still have the short 024 cover?

 

[bigrichard81]

Let me check. Like most chainsaw guys, I don't throw much of anything away, the trick is finding it.