What's on your bench today?

[spudulike]

Spud. What compression should i expect on the hs80 hedge trimmer?

 

Cheers

 

Not really my sort of thing but would expect 140psi using a Gunson Hi gauge with the engine fuelled and NOT dry!

[GardenKit]

cheers Spud - metering diaphragm was knackd - no flex in it, like a piece of cardboard- replaced it and runs like a new saw. So, it was holding pressure when flexed one way but too stiff to flex back after opening the needle and so constant flloding.

Before I had the pressure tester I used to change all dias and gaskets as a matter of course - but that's expensive if they're fine - this is a helpful reminder to double check their condition.

Am wondering is there any way to recondition a metering diaphragm that's gone 'card-boardy'?

 

 

Anybody - it's a Makita DCS34 - when I google it's telling me this is a commercial grade saw? is that right? Certainly cuts with oomph.

 

Cheers

I would always fit new diaphragms and gaskets during a carb clean, they will not be as good as they were when new after being subjected to the solvents in petrol.

 

They are not expensive generally and it saves a lot of agro in the end as you have found the hard way.

[GardenKit]

Not really my sort of thing but would expect 140psi using a Gunson Hi gauge with the engine fuelled and NOT dry!

You wont be far out there Steve.

[agg221]

Any opinion on carb kits? Aftermarket ones seem to be about a tenner, genuine Stihl branded seem to be in excess of £30. Is there any difference?

 

Thanks

 

Alec

[GardenKit]

I usually get genuine kits, but in Zama or Walbro packets, rather than the same thing in, say, a stihl packet. Usually around 1/3 of the price.

 

However the Carb manufacturers are not always allowed to sell the kits, especially for some later saws. One example was yesterday when I wanted a kit for an MS261, but had to get genuine, Ouch.

 

I am a bit wary of the non genuine 'pattern' parts. I guess some are OK, but others..??? As I am selling my services to my customers rather than working on my own kit, I prefer not to take the risk.

[Eddy_t]

I usually get genuine kits, but in Zama or Walbro packets, rather than the same thing in, say, a stihl packet. Usually around 1/3 of the price.

 

However the Carb manufacturers are not always allowed to sell the kits, especially for some later saws. One example was yesterday when I wanted a kit for an MS261, but had to get genuine, Ouch.

 

I am a bit wary of the non genuine 'pattern' parts. I guess some are OK, but others..??? As I am selling my services to my customers rather than working on my own kit, I prefer not to take the risk.

 

Many carb kits are exactly the same, had 2 different carb models, 2 different kits (apparently), exact same shape and fit!

[spudulike]

All I know is that Stihl sting you for what you can get from the carb manufacturer for 1/3rd of the price:thumbdown:

 

I do what Barrie does:thumbup:

[Rich2484]

Yep fitting genuine parts is a must if services are for trade.

 

Wouldn't want anything to come back because the parts have been sub standard.

 

If its your own tool then go for it and let us know how it goes.

 

On another note what are the thoughts on porting an old dolmar saw?

[agg221]

Thanks All, Rowena it is. It's for the 026 - inlet needle rubber end has broken up and it's £7.60+VAT for that part alone from Stihl, hence thinking about whether I just re-use the diaphragms. If Rowena come up with a decent price I will put a whole kit on, which I suspect won't be much more than the above single part.

 

Alec

 

edit: just ordered from Rowena, very helpful man, £24 for two kits, one to fit the 026 and the other for an 070 which is gradually being put back together as the missing bits show up on ebay.

Edited February 13, 2013 by agg221

[Rich2484]

One ms200t stripped cleaned and awaiting new seals and bearings. (Below).

 

Finally got to the bottom of the 200t with vertigo.

 

The plate holding the carb boot to the cylinder was upside down causing it to work lose and let air into the cylinder.....