Can a counter balancer be added to an engine?
“Like introducing any new rotating mass into an engine, a counter-balancer adds friction and therefore robs the engine of some power,” Viertlmayr explains. “Plus it’s expensive, and it’s not easy to integrate without making the engine’s dimensions bigger.
When does the intake valve open on a camshaft?
The intake valve opens slightly before the piston is at the top of the cylinder. As the piston moves down, air and fuel are drawn in. Shortly after the piston begins rising again, the intake valve closes for the compression cycle.
How to find the intake lobe centerline in a camshaft?
To find the intake lobe centerline, divide the intake duration by two and subtract the indicated intake opening point as shown in our example with the Comp XE274 example. Intake Centerline = (duration ÷ 2) – IO Intake Centerline = (274 ÷ 2) – 31 = 106 degrees Sometimes you find a very mild or stock cam where the IO occurs after TDC (ATDC).
How are intake and exhaust points calculated on a cam card?
Cam cards publish these points based on the manufacturer’s chosen reference points: typically 0.006 inch for advertised duration and 0.050 inch for a universal checking reference based on an agreed amount of lobe lift where reasonable flow is initiated. The following formula is used to calculate intake and exhaust duration.
How does a balance shaft work on a motorcycle?
The balance shafts do not reduce the vibrations experienced by the crankshaft. Numerous motorcycle engines— particularly straight-twin engines — have employed balance shaft systems, for example the Yamaha TRX850 and Yamaha TDM850 engines have a 270° crankshaft with a balance shaft.
Can a balance shaft failure cause idler gear wear?
Balance shaft failure or guide idler gear wear. Very expensive repair as it requires removing the engine. Problem #2. Camshaft solenoid adjusters. Electromagnets bolted on the fronts of the engine head are defective and need to be replaced. Go to this page and click on Option 1 or 2.
How to check for balance shaft engine issues?
Fault codes 0059, 0060, 0063, 0064, 0271, 0272, 0275, and 0276. These fault codes could be recorded as current in the ECU fault memory. If current or pending these codes are caused by a malfunctioning camshaft adjustment solenoid. If you have these codes you should check for oil leak at camshaft adjustment solenoids.
Are there any aftermarket crankshafts that are balanced?
Similar problems occur with aftermarket crankshafts as with the original equipment. While the aftermarket crankshafts may be balanced slightly better, they too are dynamically balanced and will eventually shift.