I'm after the compound timing gear from a 105 Nord engine. I need the one that has the gear to drive the rev counter.
Its a 2000 one I'm after, thought they were all the same, other than the twin spark ones. Thanks for showing the link, I could use the one from the web site if I can't get one from elsewhere, I will have to ask about postage costsengine?
iirc, they are different between 2.0 litre and 1750 engines.
2.0 litre has a shorter shaft, by some 4,5mm I think.
I did read somewhere that one could (if one is a competent machinist!) drill a normal intermediate timing sprocket to take the tach gear. So that got me wondering, OK, so where do you get a tach gear....
Did a bit of a search and came across this one (8th photo down)
I always thought the whole sprocket was machined as one part!
ENGINE - alfaveloce.com
well, yes, but then you'll need to machineNow knowing that the speedo drive gear is a separate part, a unit from any size engine(Nord) would be OK
None of the above are a problemwell, yes, but then you'll need to machine
a) a hole to press fit the tach cog into (there is no hole there on one that never had the tach cog)
b) if you got a 1750 one w/o the tach cog, you need to do the same, plus machine a tad off the other end, the end that sticks into the block...because that is where the difference is.
c) if you got a 1750 one WITH tach drive, you still need to machine some off the end that sits in the block.
d) I do not know the differences, if any, between 1300/1600 ones and the 1750 or 2000
easiest of course is find a 2.0 litre one WITH tach drive
Question is, what do you have now? None at all, or a 2 litre sprocket w/o tach drive?