A neighbor wanted me to look at a acquired Stihl 044 chainsaw. A previous person tried to fix it by buying 2 China carbs to no avail. Told it would only run on fuel dumped into the bore.
Experience would tell you that there is a good air leak. To confirm a quick vacuum and pressure test to locate the leak. Yup there is a leak but it is a really good one but where? Hooking up the shop air compressor to 10 PSI would give a steady flow to be able to water tank dunk. Sure enough a wide section of the case bottom where the gasket is missing air is pouring out. Any guess why the case gasket blows out?
No matter how many carb kits or new carbs installed they would not work due to there is no vacuum to pull on the carb diaphragm to deliver fuel. Some quick simple testing would have cut to the chase and save time and money. I know the of the original worker and know he had the tools to figure it out but since shut down and moved on.
Looking at the saw it has a aftermarket 52mm big bore. Compression is 114psi and light scaring on the intake side due to running lean but little cleaning and new rings should bring back up the compression? Waiting to see what the neighbor wants to spend on the saw to make it a runner. Rings, seals, case gasket. Luckily I have the Walbro and 2 china carbs with it.
What is the value of the 044 with a 52mm big bore kit? Worth fixing? He is a homeowner and rarely cuts wood.
.
Experience would tell you that there is a good air leak. To confirm a quick vacuum and pressure test to locate the leak. Yup there is a leak but it is a really good one but where? Hooking up the shop air compressor to 10 PSI would give a steady flow to be able to water tank dunk. Sure enough a wide section of the case bottom where the gasket is missing air is pouring out. Any guess why the case gasket blows out?
No matter how many carb kits or new carbs installed they would not work due to there is no vacuum to pull on the carb diaphragm to deliver fuel. Some quick simple testing would have cut to the chase and save time and money. I know the of the original worker and know he had the tools to figure it out but since shut down and moved on.
Looking at the saw it has a aftermarket 52mm big bore. Compression is 114psi and light scaring on the intake side due to running lean but little cleaning and new rings should bring back up the compression? Waiting to see what the neighbor wants to spend on the saw to make it a runner. Rings, seals, case gasket. Luckily I have the Walbro and 2 china carbs with it.
What is the value of the 044 with a 52mm big bore kit? Worth fixing? He is a homeowner and rarely cuts wood.
.
