mick
Member
Is there a simple way to measure RPM (Bukh 10HP), without going to the bother of permanently installing a rev counter?
RPM
- Thread starter mick
- Start date
summerwind
New member
Measure the diameter of the crankshaft pully and the size of the alternator pully.
Calculate the percentage size of the alternator to the crankshaft.
Paint a small white dot (It must be white) on the edge of the alternator pully wheel.
When the engine is running, count how many times the white dot passes the top of the alternator in a minute.
Apply the above mentioned percentage. This will give you the rpm of the engine.
Calculate the percentage size of the alternator to the crankshaft.
Paint a small white dot (It must be white) on the edge of the alternator pully wheel.
When the engine is running, count how many times the white dot passes the top of the alternator in a minute.
Apply the above mentioned percentage. This will give you the rpm of the engine.
G
Guest
Guest
the respondent above must be a whizz at counting b....dy fast!
buy, borrow, or hire an optical rev counter. this requires you to put a reflective marker on the crank pulley, and the rev counter counts the number of times a minute this marker passes it.
buy, borrow, or hire an optical rev counter. this requires you to put a reflective marker on the crank pulley, and the rev counter counts the number of times a minute this marker passes it.
LadyInBed
Well-known member
Buy a cycle 'trip computer' from halfords.
I think they will tell you, amongst other things, the pedal cranking speed in RPM
I think they will tell you, amongst other things, the pedal cranking speed in RPM