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Hi! My name is Jon Bretzinger. I'm new to the forum. I acquired a really well preserved 011 saw. It's one of bright orange vintage and came in a really nice case. After getting it home, I found out it doesn't oil. Found the problem, it's got a bad diaphragm. The problem I have is I can't find one anywhere. Would anybody out there know where I could find a chain oiler diaphragm for the 011. Thanks!

If you mean
1120 640 3100 oil pump plunger with diaphragm.
Then there are quite a few listed in various places.
Stihl mark it as NLA but I found quite a few listed down here in OZ, in the UK & in the USA
Green Acres
Chinese copy from HK

Currently there are knock off 010 , 011 & 012 saws all over the place so there must be a supplier of the diaphragm or the knock offs must have a different system that may be able to fit your saw.
Otherwise breakers like Randy's

Welcome to the forum!

Thanks! All I could find was a complete pump in GB. 40 some pounds to buy, 60 some pounds to ship to US. I gave 75 US for the saw. Lol! That was all I could find.

Well the Chinese copy that I went to the effort of making a hot link to has them for under $ 10 and there was 9 in stock so by now there should only be 8 and one should be on it's way to you.
The Australian link has them for $ 35 ( AUS), about $ 20 US + shipping which will be another 10.
However Australian e-shops have a bad habit of advertising stuff that they don't have because it used to be listed in their wholesale suppliers catalogue .
But they do say it is in stock.

bertsmobile1 said:

Well the Chinese copy that I went to the effort of making a hot link to has them for under $ 10 and there was 9 in stock so by now there should only be 8 and one should be on it's way to you.
The Australian link has them for $ 35 ( AUS), about $ 20 US + shipping which will be another 10.
However Australian e-shops have a bad habit of advertising stuff that they don't have because it used to be listed in their wholesale suppliers catalogue .
But they do say it is in stock.

Click to expand...

Scrubcadet10 said:

Stihl 011 Chainsaw (011AVTEQ) Parts Diagram

Select a page from the Stihl 011 Chainsaw (011AVTEQ) exploaded view parts diagram to find and buy spares for this machine.

www.diyspareparts.com

even though this site is foreign, it can supply you with a part number

welcome to the forum,Jon!

Click to expand...

Thanks!

bertsmobile1 said:

Well the Chinese copy that I went to the effort of making a hot link to has them for under $ 10 and there was 9 in stock so by now there should only be 8 and one should be on it's way to you.
The Australian link has them for $ 35 ( AUS), about $ 20 US + shipping which will be another 10.
However Australian e-shops have a bad habit of advertising stuff that they don't have because it used to be listed in their wholesale suppliers catalogue .
But they do say it is in stock.

Click to expand...

Thanks Bertsmobile

Jon Bretzinger said:

Thanks Bertsmobile

Click to expand...

I really appreciate the effort, but unfortunately that is a different part number. That shows part number 1106-640-3100. Similar, but shaped differently. I need part number 1120- 640-3100. It it round shaped, with a flat on one side. With the diaphragm and pushrod in the center. That might be the system the Chinese updated to?

Sorry about that.
I cut & pasted the part number from my IPL and did not notice the difference,
Could be so you night have to replace the entire pump.
A lot of the stuff that comes out of Asia is not an exact copy in every detail.
Not being a Stihl expert Stihl themselves may have updated that part on later versions

So did a bit more digging on a few chainsaw specialty forums & found that the 1120- 640-3100 diaphragm seems to be very difficult to find.
They are listed on dozens of sites but all of them have a "check inventory " or "not currently in stock" tag on them.

This is a bit of a surprise as that model line 009 / 010 / 011 were a very popular line and copied by many Asian factories.
There may be an upgrade or the 1106 diaphragm might be able to be modified to fit

OTOH if you have the entrepeneur geans then there is obviously a market for these diaphragms.

Thanks Bert!

Jon Bretzinger said:

Hi! My name is Jon Bretzinger. I'm new to the forum. I acquired a really well preserved 011 saw. It's one of bright orange vintage and came in a really nice case. After getting it home, I found out it doesn't oil. Found the problem, it's got a bad diaphragm. The problem I have is I can't find one anywhere. Would anybody out there know where I could find a chain oiler diaphragm for the 011. Thanks!

Click to expand...

The oiler diaphragm Part No.1120 640 3100 is no longer made by Stihl. This part is common to the 09 (top handle), 010, 011 and 012 Models, first introduced in the late 70s. You may just find someone having one or two NOS in the US but certainly not in the UK; DIY Spare Parts will not have it!. Misleadingly, some of the messages here are directing to an entirely different oiler, with no compatible part available, as this is an old range of saws however reliable and loved.
I am looking into having a batch of new type oil diaphragms made to an improved design, subject to further interest on Forums such as this. So far, I have had just one response from the US, which isn't highly inspirational. The plain fact is that the equivalent new Stihl saw being the Stihl MS 201 C-M has M-Tronic ignition and full parts availability for at least 8 years (in Europe), a worthwhile investment if you have a spare £810.00 (RRP) including VAT for the 14" option. Alternatively the latest and most powerful cordless MSA 220 C-B with 2 x AP300S batteries costs slightly more but currently requires the user to be tied to a mains charger.