New Meteor piston in 257xp

[Dinosaw]

Just finished a 257xp. Came in with 100lb compression and slappy noises. Piston looked fine but couln't find any other reason for low comp so fitted a new one anyway. Now up to 175. P & V test was ok but on startup could not reduce idle speed. Used Spud's "spray WD40 on the inlet manifold connection" and got a result. I don't like that horrid manfold clip but wiggling it slightly cured the problem. Think I'll replace it with one of those narrow Norma jubilee clips if it plays up again!

[SawTroll]

Fine - but the 257 never was an xp saw - just 257.

[Dinosaw]

Well spotted that typo error----357!

[spudulike]

That 357 and for that matter, 345, 350, 354, 346 etc manifold connection is a bit pants IMO. it is usually difficult to get a good seal and have found either a new manifold or a very small "O" ring placed on to the small plastic impulse connector before fitting the rubber manifold will get a perfect seal.

 

The metal clip is OK and have had issues with jubilee clips!

[Dinosaw]

The "O" ring sounds like really good idea but by "jubilee" clip I mean those narrow stainless ones that are the same width as the dodgy Husky one. Have you had trouble with them then?

[spudulike]

The "O" ring sounds like really good idea but by "jubilee" clip I mean those narrow stainless ones that are the same width as the dodgy Husky one. Have you had trouble with them then?

 

I used a fatter one but the problem appears to be around the impulse connector on older manifolds!

[SawTroll]

Now old is this saw?

 

There was an update to the intake clamp etc in 2006.

SB intake clamp 346_357 2006 and carb 357 2008.doc

Edited June 15, 2014 by SawTroll