 |
Return Create A Forum - Home |
 |
--------------------------------------------------------- |
|
Chainsaw Repair |
 |
https://chainsawrepair.createaforum.com |
|
--------------------------------------------------------- |
|
***************************************************** |
|
Return to: Carb Fixes and Mods |
|
***************************************************** |
|
#Post#: 90651-------------------------------------------------- |
|
Purgers going bad |
|
By: joe_indi Date: June 4, 2024, 12:29 am |
|
--------------------------------------------------------- |
|
Why do purgers fitted on carbs fail so quickly? |
|
So many carbs replaced where the culprit was the purger. It is |
|
usually the inlet valve on the purger that fails and when that |
|
happens the metering diaphragm no longer gets pulled down by the |
|
vacuum created in the metering chamber, because that leaking |
|
purger valves bleeds air back into the metering chamber. |
|
I have tried getting the valves working on these purgers. Used |
|
every solvent and detergent I could lay my hands on, except the |
|
waters of the sea of Galilee! Tried carb cleaners and WD40 too. |
|
Toilet cleaners, hand soaps, dishwashing fluid, ether, thinners |
|
of all grades. |
|
It was not a total failure though. The two on the right have |
|
their valves functioning properly. |
|
I just cannot afford to keep replacing carbs on my machines nor |
|
for my customers, especially on 4Mix engines which seem to be |
|
looking for any reason to quit running |
|
#Post#: 90652-------------------------------------------------- |
|
Re: Purgers going bad |
|
By: Chainsawrepair Date: June 4, 2024, 7:02 am |
|
--------------------------------------------------------- |
|
Like your seeing there. Only the stihl design ones I have seen |
|
this on here too. |
|
Other brands never see this yet. Knock on wood. |
|
#Post#: 90658-------------------------------------------------- |
|
Re: Purgers going bad |
|
By: joe_indi Date: June 6, 2024, 3:54 am |
|
--------------------------------------------------------- |
|
One unique carb cleaning method used by some people here is to |
|
immerse everything in a detergent solution and raise the |
|
temperature just below boiling point then flush out the carb |
|
using a syringe and water. I have never tried this , maybe i |
|
should |
|
***************************************************** |
