Stihl Grub Screw Tank Vents?

[blsnelling]

So 084 You negelected and filled with crud?

I've 80s 038/028 that are still OEM and work fine. Keep it simple Brad

Neglected? Keep it simple? Doesn't get any more simple than removing the inferior, failure prone grub screw and installing a factory improved rubber umbrella basket that won't clog up and will flow MUCH more air, as is required by an 084. There's a reason grub screws are no longer used.

 

[blsnelling]

I have seen threads with cuts in them, I'd just love to see you do it with a dremel wheel, on the size screw used in these vents......

Only .040" kerf. https://www.dremel.com/en-ca/Accessories/Pages/ProductDetail.aspx?pid=545#tab-specifications

 

[blsnelling]

Sure, the slotted grub will work. But why use an old inferior design that will leak fuel when there is a factory improved part that will do a much better job?

 

[blsnelling]

 

[HarleyT]

Let's see one that one of you guys slotted!!

 

[ssm1699]

I have more problems with the tubing becoming brittle and crumbling before I have problems with them being clogged. I have already replaced the tube with grub screws on my 029/039, twice.

 

[grizz55chev]

View attachment 519697

That little rubber piece must have some gold in it, priced insane.last one I purchased was over 10$

 

[blsnelling]

Let's see one that one of you guys slotted!!

Why so contrary? If someone said they've done it or seen it done, why would you doubt that?

 

[blsnelling]

That little rubber piece must have some gold in it, priced insane.last one I purchased was over 10$

That's a lot cheaper than a grub screw. Ever priced an 084 topend!? It's all in how you look at it.

 

[SteveSr]

View attachment 519697

This is great for the tanks that will accommodate them. What about the ones that won't?

 

[sugarbush]

This is great for the tanks that will accommodate them. What about the ones that won't?

use the grub screw, they work fine. if they plug up the saw will run out of gas.

 

[HarleyT]

Why so contrary? If someone said they've done it or seen it done, why would you doubt that?

Oh, I am sure that a machine shop could do it, but not with that cutter, and a free handed dremel tool.

 

[SteveSr]

use the grub screw, they work fine. if they plug up the saw will run out of gas.

... Or run lean and toast the top end like what happened to Brad.

 

[dugide]

mine wouldn't keep running with a plugged vent, started to slow up like it was running out of fuel. checked the tank and was half full. when I took the cap off it had more pressure then I thought it should have, the vent was plugged.

... Or run lean and toast the top end like what happened to Brad.

 

[HarleyT]

The screwdriver slot is @ .03, so the dremel you posted is @ .04, which is quite a bit thicker. The dime is just there for reference, it is @ .07, so I'd have to see this skilled cut before I could believe it, both sides please.....

 

[HarleyT]

... Or run lean and toast the top end like what happened to Brad.

I think that it was due to global warming....

 

[HarleyT]

View attachment 519697

Just curious, how do you make this valve work?

 

[HarleyT]

Here is what Steve, {the original poster} has to work with........

Maybe not so dirty........

 

[HarleyT]

An 084 burns a lot of fuel. I had a long bar buried in Oak. The saw ran lean because the grub screw caused a vacuum in the tank. The saw was in otherwise perfect condition. I removed the grub screw and installed the orange rubber valve in the tank, as more modern saws use. Problem solved.

Can you show us how you did this?

 

[SteveSr]

View attachment 519726
Just curious, how do you make this valve work?

You have to have a tank that is designed to work with it like the newer 026/MS260 which mounts from the *inside* of the tank.