Why does my snowmobile only run on one cylinder?
check to see if both your crank case drain plugs are still in the lower front below the Y pipe, if they are loose or missing they will have the same affect on your sled as you are having with your sled, the sled will leak gas and oil mixture out from the bottom of the motor and you will loose crankcase pressure causing …
How much compression should my snowmobile have?
New it should be around 140+psi. When it gets to less than 120 or has more than 5k miles on it, a top end refresh is a good idea.
What does ac43.13-1b say about cylinder compression?
Okay, but let’s look at the opening paragraph in AC43.13-1B. This advisory circular (AC) contains methods, techniques, and practices acceptable to the Administrator for the inspection and repair of non-pressurized areas of civil aircraft, only when there are no manufacturer repair or maintenance instructions.
What does a compression reading of 60 / 80 mean?
Of course, almost all cylinders have at least some leakage, so the pressure gage on the cylinder side will often read lower. So, a compression reading of 60/80 means the regulated air coming into the orifice is 80 psi, but a leakage is causing the pressure to drop to 60 psi on the other side of the orifice.
How to check the compression of a Continental engine?
So, if your Continental engine has a low compression and the A&P wants to pull the cylinder, ask him if he followed the guidelines in SB03-3. Also, be sure he used a master orifice to determine the minimum and that he looked inside the cylinder with a borescope.
Can a compression test be done on a cylinder?
The compression test is a very useful tool to help determine the internal condition of cylinders, but it has limitations and must be used in conjunction with other non-invasive tests. A borescope inspection MUST be done in conjunction with a compression check.