What's on your bench today?

[Rich2484]

If the saw will run. Even tho it may be run I would try and get it warmed up and do another comp test. One hot one cold. May give a small indication on compression.

 

That's if the saw will run.

[AlvinD]

Thanks Gardenkit, it does drop fairly easy when held by the pull cord. It's just had a new piston and rings in it though that would lead me to believe that the bore has widened?

 

Rich2484: with a working carb on it behaves as a normal ms200 should. I swapped carbs with a working saw, it idled no probs and revved up to full with no probs again but I haven't tried it through wood.

Edited November 28, 2012 by AlvinD

[spudulike]

Funny one that, I had an MS200T run without the impulse line being conected, forgot all about it until Gardenkits post - very strange but glad it is fixed.

 

Alvin - is the piston wet with fuel/oil as on a dry piston, I have had 135psi and it has gone up considerably once the fuel/oil is around the piston and rings.

 

The other thing is was it a quality piston and if the saw was seized, was ALL the aluminium transfer removed carefully?

 

It is unlikely the bore has widened to a degree where it is causing 20psi loss of compression - if it was that worn, I would expect to see aluminium coming through the Nikasil plating.

 

On a standard 200T, I would expect 145 - 155psi, on a modded one 160 - 180psi:thumbup:

 

Oh, this is with holding the throttle wide open while pulling it over with the gauge in!

[AlvinD]

I do remember the piston packaging came in a white box Spud. Cause of failure is unknown to me but I'll get a Meteor piston in the post and strip it all down again good possibility of aluminium transfer still on barrel. Back to square one.

[spudulike]

Any aluminium transfer left on the bore will soon ruin the new ring and the white box pistons are not as good as the Meteor ones!

 

Been working on a Husqvarna 40 - what do you all reckon on this sprocket - time to change it yet:lol:

[Rich2484]

Chain slipping by any chance spud??

[twistedhicap]

Spud just get the welder out it will be fine lol

 

got there moneys worth out of it then !

[spudulike]

No idea if the chain was slipping but it looks like it would have, just needed a service which it is getting!

 

Found this pretty shocking though!

[Rich2484]

Yeah looks a bit shocking. Shows how far people will check there climbing gear every time they climb but not there saws every time they sharpen or change the chain....

[GardenKit]

Looks like a Farmers saw to me!!