What's on your bench today?

[Adamam]

Air leak.

 

My obsession with getting my Oleo/Efco hybrid running continues!

 

The saw races at idle which means an air leak, right? Could there be anything else? Cylinder gasket is new. Cylinder and piston are mint, rings are new.

 

Hoses and boots all look sound.

 

I know the answer is a pressure/vacuum test, but I don't have access to the gear.

 

In all likelihood, will it be the crank seals? Or is the crank case gesket just as likely?

 

[Adamam]

Also, those cheapo brake bleeders on Ebay, does anybody know if they tend to pump as well as suck (fnar fnar)?

[spudulike]

Also, those cheapo brake bleeders on Ebay, does anybody know if they tend to pump as well as suck (fnar fnar)?

 

The seals are more likely to go than the crank gasket leaking. The clutch side tends to go first but not always.

 

The brake bleeders produce vacuum and is what I use to vacuum test - pretty easy to use.

 

You could use a bicycle pump a balloon and some tube to pressure check and just apply soapy water around the seals - not a great method but may just work for you!

[spudulike]

Started work on a Jonsered 2051, it starts but idle was pretty hit and miss plus the saw won't restart when warm. Compression plummets when warm.

 

A pressure check shows the flywheel seal was shot, letting out enough air that I could feel it coming out:lol:

 

The bearing behind it was tight but flushed them both out and they run just fine now.

 

The piston had been put on the wrong way round by the previous owner so have corrected this and have been tweaking the gasket thickness to get a bit more go out of it!

[mikerecike]

Been wishing for one of these to come my way. Coupled with my Draper Expert 1/4 socket drive set prezzzie I'm chuffed.

 

But - no spark, presuming points behind flywheel - how to get into this thing - its really tightly packed in.

 

A service manual would make life easier. Any tips re: working with one of these would be appreciated.

 

Cheers folks

 

 

[mikerecike]

Started work on a Jonsered 2051, it starts but idle was pretty hit and miss plus the saw won't restart when warm. Compression plummets when warm.

 

A pressure check shows the flywheel seal was shot, letting out enough air that I could feel it coming out:lol:

 

The bearing behind it was tight but flushed them both out and they run just fine now.

The piston had been put on the wrong way round by the previous owner so have corrected this and have been tweaking the gasket thickness to get a bit more go out of it!

 

What do you mean by flushed them out Spud? And do you mean reducing the thickness of the cylinder gasket? Will that make any difference?

 

Cheers

[spudulike]

What do you mean by flushed them out Spud? And do you mean reducing the thickness of the cylinder gasket? Will that make any difference?

 

Cheers

 

One of the seals had deposited its nitrile all over the bearing making it a bit notchy, sprayed carb cleaner on it to soften the grunge and then span it over and oiled it - negligible play and spins sweetly now.

 

Reducing the thickness of the base gasket will up the compression and give the saw some more torque:thumbup:

 

Compare a saw running 135psi and 150psi - that is the difference:biggrin:

[Adamam]

The seals are more likely to go than the crank gasket leaking. The clutch side tends to go first but not always.

 

The brake bleeders produce vacuum and is what I use to vacuum test - pretty easy to use.

 

You could use a bicycle pump a balloon and some tube to pressure check and just apply soapy water around the seals - not a great method but may just work for you!

 

Awesome, thanks Spud!

[felixthelogchopper]

Been wishing for one of these to come my way. Coupled with my Draper Expert 1/4 socket drive set prezzzie I'm chuffed.

 

But - no spark, presuming points behind flywheel - how to get into this thing - its really tightly packed in.

 

A service manual would make life easier. Any tips re: working with one of these would be appreciated.

 

Cheers folks

 

 

 

I had one of those that a customer gave me ages ago. Currently resides on the dead pile where I used to work AFAIK. I think I managed to download a manual for it.

[spudulike]

Been cracking on with a few Stihl MS200T/020Ts that I have had kicking around the workshop far too long. People keep asking me if I have any for sale and the answer now is YES:thumbup:

 

Just finished a 2009 saw in good clean condition, the other one in the pic is a few years older and just started on a clean looking 020T.