Originally posted by am
Hi Edward, THANKS.
A P5 is an offroad Novarossi engine. Sorry not to explain that.
I will try to find tha link to germen air modelling web site.
How do you messure degrees. I now i can make a 360 deg cirkel and monunt on crank but i find it to be not very accurate.
How is going?
If it is off-road engine I will not recomend to make 35-65 timing on induction. To be honest- I have never deal with off-road engines, but I do belive that 37-60 should be good numbers for it.
I use contractor's protractor I bought in "Home depot" here in USA. It is made by "Quint measuring systems" Please see attached pic.
I am attaching it to cranckshaft. Engine has to be firmely attached to some sort of frame. Then you put piece of wire to that frame and set cranckshaft position to bottome dead center and wire pointing on "0" on protractor. Then you will measure when induction port open on cranck and when it closes. the same way with transfer and exhaust.
Edward