044 air leak - oil pump bushing?

[Catfish044]

Should have bought oem seals

 

[Woodslasher]

If it passes a p/v test I don't think the seals are faulty. Have you checked to see where the fuel line sits in the tank? If it's sitting on the fw side you could be starving the saw for fuel when you tilt it.

 

[Catfish044]

Good point I’ll double check , i remember there’s a little tab or locating pin it lines up with in the air box area , but again aftermarket fuel line , I didn’t give it much thought its what I had so Installed it was

 

[L34]

I have a similar problem with an 044.
Holds press/vac all day.
Sit it on the ground idles good.
Pick it up and idle creeps up and chain starts to spin.
Put bar in vice and pulled the s*$t out of the AVs with saw running-no idle change.
To me it's like something is vibrating in the carb.

 

[Aknutter]

Remember to put some grease around the oil pump bushing and pto side crank seal.

While you're at it grease the clutch bearing...

 

[Catfish044]

Yeah, heck I even bought the correct stihl tool for installing pto side seal for these saws , I mess around with them enough it was worth the $13 of e bay,

 

[cookies]

If the crank seal was leaking its rpm would rise before shutting off, remove the fuel cap and see if the filter is getting stuck in a corner of the tank out of the fuel supply. Also suggest checking the coil bolts the kill wire routing and plug wire for chaffing. I have seen lots of internally failed spark plugs that simply stop firing once heated up.

 

[huskihl]

I have a similar problem with an 044.
Holds press/vac all day.
Sit it on the ground idles good.
Pick it up and idle creeps up and chain starts to spin.
Put bar in vice and pulled the s*$t out of the AVs with saw running-no idle change.
To me it's like something is vibrating in the carb.

Fuel can puddle in the intake boot and lower transfers at idle. Usually the saw will go down in rpm when you pick it up off the ground if that’s happening, though. Might still be what’s causing it

 

[Catfish044]

Makes sense , yeah I only experience rpm drop , i guess im just Apprehensive of those aftermarket seals after I used them ..

 

[huskihl]

Makes sense , yeah I only experience rpm drop , i guess im just Apprehensive of those aftermarket seals after I used them ..

If they are installed correctly and are proper for the model, I doubt you’ll have any problems. Lots of guys use aftermarket seals

 

[Catfish044]

I gotcha , yeah they went in nice and square, hear some guys really complain about some of this aftermarket that’s it’s junk , the seals looked good to me

 

[huskihl]

I gotcha , yeah they went in nice and square, hear some guys really complain about some of this aftermarket that’s it’s junk , the seals looked good to me

For the most part, aftermarket cylinders, worm gears, brake bits, most cranks and bearings, and fuel/impulse lines won’t last

 

[L34]

Fuel can puddle in the intake boot and lower transfers at idle. Usually the saw will go down in rpm when you pick it up off the ground if that’s happening, though. Might still be what’s causing it

Is this a known problem with 044s.
I know it happens with other saws.

 

[huskihl]

Is this a known problem with 044s.
I know it happens with other saws.

I wouldn’t say an 044 is ‘known’ for it, like an 026 is. But the design is similar. The same ledges in an 026 are also in an 044. The bigger saws just burn the excess without noticing it as much

 

[L34]

So I pick the saw straight up,No tilt for or aft,still does it.
So is this still fuel puddling Husk?

 

[huskihl]

So I pick the saw straight up,No tilt for or aft,still does it.
So is this still fuel puddling Husk?

Can’t say for certain.