What's on your bench today?

[MattyF]

Lol the one you still have is my favourite though when it's working!! Maybe time for some new ones!

[spudulike]

Lol the one you still have is my favourite though when it's working!! Maybe time for some new ones!

 

You may have heard it wailing a mile away around 5.00pm on Sunday today! Seems OK now and idles/revs out fine - you will have to see what you think of it now!

[spudulike]

Latest news on the 880 - new piston fitted, in the process of cleaning the carb - noted the H screw was at 1/4 turn NOT 1/2 as per spec so probably the route cause of the seizure.

 

Pressure check was 100% fine: -

[Treemon]

JB weld my friend - just clean up the surfaces with strong solvent, soap and water etc:thumbup:

 

Just got some ebay - will let you know results:thumbup1:

[VTS]

It all happens at once.

 

The 880 needs a new coil, piston and barrell (18 month old) and the long reach hedge cutter got through a gear head in 5 months.

 

18" bar on the 341 seized the other day aswell.

 

LDV needs a new tyre and tracking sorting.

 

What next?

[VTS]

Update: Ms 880 coil - £74.40.

Cylinder and piston - £352.54

 

OUCH!!!

[Megatron]

Latest news on the 880 - new piston fitted, in the process of cleaning the carb - noted the H screw was at 1/4 turn NOT 1/2 as per spec so probably the route cause of the seizure.

 

Pressure check was 100% fine: -

 

OEM piston?

 

Did you remove the limiter caps and screws to clean the carb?

According to my literature the standard setting (limiter caps in place) is 3/4 turn out on the H. The basic setting (having removed the limiter cap) is one full turn out on the H. (For the HT-12D and HT-12E carbs).

The newer Walbro carb is different.

Edited October 3, 2011 by Megatron

[spudulike]

OEM piston?

 

Did you remove the limiter caps and screws to clean the carb?

According to my literature the standard setting (limiter caps in place) is 3/4 turn out on the H. The basic setting (having removed the limiter cap) is one full turn out on the H. (For the HT-12D and HT-12E carbs).

The newer Walbro carb is different.

 

OEM piston - no, used aftermarket after consulting the customer and going through the prices - tested the old piston for steel inserts and found no steel present - wouldn't Stihl just increase the aluminium thickness to increase strength and the aluminium would conduct heat more efficiently?

 

Limiter caps are off - the saw seized so it is important that I know where the tune is, once I have reset the mix, they will be replaced. The saw was set at 3/4 on the idle and 1/4 on the H screw with caps removed, the rear filter cover says H=1/2 L=1/4

 

Having very roughly got the saw started, the L is at 3/4 and the H at 1 turn, I will do a tune before the saw goes back to use. The carb is a tillotson of a considerable size:thumbup:

 

The damage on the saw was almost definitely caused by the H setting being too lean, possibly by removal of the caps and setting to the settings on the cover - I will leave this on the rich setting to give the piston a chance to run in especially baring in mind the sort of work it will do but will rely on my tach to do the final tune.

 

Happy so far:thumbup:

Edited October 3, 2011 by spudulike

[swinny]

It all happens at once.

 

The 880 needs a new coil, piston and barrell (18 month old) and the long reach hedge cutter got through a gear head in 5 months.

 

18" bar on the 341 seized the other day aswell.

 

LDV needs a new tyre and tracking sorting.

 

What next?

 

ouch

[spudulike]

So the 880 is running, needs a tune, MattyF 357XP has been run up for 30 mins and tached at a conserative 13,500 and it idles fine and revs very swiftly. Time will tell if I have cracked this saws problems!

 

All I know is tat it has good compression, is 100% airtight and the carb is definitely the problem if the idle goes again!

 

Got a Husky 136 on the bench now - needs a new sprocket and tune.