To new saw or not to new saw?

[spudulike]

Been working on this saw today, first impression out of the box - exhaust bolt had snapped off and the top cover was cocked over at a jaunty angle. A quick inspection and the top front AV mount wasn't siting right and had a screw sticking in the middle of it. I took the exhaust off, squeezed the AV back in to place and fitted the correct retaining bung.

 

The back of the exhaust was pretty shagged after it had been rattling on one bolt so needs a new one, the bolt was replaced. The sprocket is pretty worn so needs a new one.

 

Anyway, on to the running issues. When I read the description, I thought carb issues or accelerator pump. I did check the new coil and found it had a massive coil to flywheel gap so set it correctly. The fuel line and filter were checked and were OK, the bore looked OK and compression was punchy. The carb was stripped, new diaphragms were fitted, gauze filter was OK and the accelerator pump was significantly worn. The low speed welch plug had a slight leak so was resealed. There was no gasket between the manifold carb plate and the carb so reckon the impulse and inlet could have been leaking a bit. I made one as I didn't wasn't to wait for a new one.

 

Parts now changed (Bar the sprocket and muffler) and the saw idles and revs out as it should, I reckon the coil gap and accelerator pump were the main running issues.

 

[bmp01]

Good result,  another one dragged back from the grave !

 

I have to say that's brilliant service,  running saw AND a detailed diagnosis report. Don't see that too often.

 

Did i mention I hate accelerator pumps  before now . .... I did ?..... Oh ok, I'll shut up then. ....

 

 

[Steve Bullman]

Cool. 40 minute job?

[Mark Bolam]

20 Steve.
But a day each side to post it to his new saw tech....

[billpierce]

20 minutes! I have done 100s of these saws and you can complete rebuild them in 80 seconds

[spudulike]

It was actually 30 seconds and was making a cup of tea and reading the newspaper whilst doing it

 

[byjoshuawilliams]

30 seconds labour charge? I can deal with that!

[josharb87]

Out of curiosity, whats the total cost of your work here spud?

[Mark Bolam]

£4

[bmp01]

And 3 pounds of that was for the accelerator pump parts