036 Pro won't hold vacuum?

[HarleyT]

Cant kill them they can be resurrected!

Yeah, but the real story behind the saw would be helpful........

 

[lone wolf]

Yeah, but the real story behind the saw would be helpful........

They never tell you that and it sure would help.

 

[HarleyT]

Has he indicated that he has done a proper pressure test?

 

[lone wolf]

Has he indicated that he has done a proper pressure test?

I dont know anything yet.

 

[lone wolf]

Has he indicated that he has done a proper pressure test?

Post 1 said
"I replaced the top end, installed new base gasket, & blocked off muffler/intake with rubber. I'm using my mighty vac at impulse. (no vacuum will hold) I also checked spark plug for tightness & replaced decomp with an optional plug."

 

[HarleyT]

If you get a saw to pass a pressure test, and fail a vac test, then you have a real oddity. I have never seen it, but that means nothing.
But since the folks here have not even performed a pressure test. Well..........

 

[HarleyT]

Doing a proper pressure test on a saw, you block it down, and put psi. to it. Go to lunch, and the psi should be real close when you get back.

 

[lone wolf]

If you get a saw to pass a pressure test, and fail a vac test, then you have a real oddity. I have never seen it, but that means nothing.
But since the folks here have not even performed a pressure test. Well..........

Listen it ain't uncommon at all to pass pres and fail vac. I have seen this quite a few times crank seals tend to fail at vac because of the lip .

 

[HarleyT]

Most techs call that good, as the anomaly of a saw that holds pressure, but not vac, is highly unlikely, and is probably non existant,
but they leave that option out there, to cover their arse. The real sad reality is that almost no one here actually does a proper
leakdown test.....

 

[HarleyT]

Most techs call that good, as the anomaly of a saw that holds pressure, but not vac, is highly unlikely, and is probably non existant,
but they leave that option out there, to cover their arse. The real sad reality is that almost no one here actually does a proper
leakdown test.....

I will bow out.... I see things heading south quickly.....

 

[lone wolf]

I will bow out.... I see things heading south quickly.....

You would like to see me post it right from the Stihl manuel maybe?

 

[lone wolf]

 

[pantelis]

Doing a proper pressure test on a saw, you block it down, and put psi. to it. Go to lunch, and the psi should be real close when you get back.

I have leave saw for 24 hours in presure and 24 in vacuum it hold

 

[pantelis]

View attachment 391699

this service manual its not for the same saw , you confuse the operator

 

[HarleyT]

I am not trying to argue with you two, but the saw in this thread doesn't apply.

 

[HarleyT]

He hasn't indicated that he has performed a valid pressure let alone a vac test.

 

[lone wolf]

I am not trying to argue with you two, but the saw in this thread doesn't apply.

What do you mean?

 

[HarleyT]

Squirting some air psi in the butt of a saw and looking for bubbles does not equal a good pressure test..... And if he hasn't even done that, how can we believe that he has actually done a good vac test?

 

[HarleyT]

But stepping back and listening to the history of this saw, and all of the rest of it, we might re-think our advice.... But we haven't gotten too much yet....

 

[lone wolf]

Squirting some air psi in the butt of a saw and looking for bubbles does not equal a good pressure test..... And if he hasn't even done that, how can we believe that he has actually done a good vac test?

Like I said IDK what he has there Im waiting .