Cam Shaft lumpy bits-Which lump up

[Eldrick]

 Rebuilding the top of my engine (400f) and I am at the camshaft now. I have set the timing for 1-4 to TDC as per the manual (and NurseJulies rebuild thread). I have the camshaft sprocket aligned correctly (levelled the marks) with the top of the engine and I have put the chain over the sprocket.
It seems to me there is two options for rotating the camshaft so I currently have the lumpy bit for #1clynder pointing down toward the piston. Is that the correct way round?
I have not torqued the rocker cover over the top yet, mainly because I want the cylinder bolts to sit overnight so I can double check my torque values again. That means I have plenty time to adjust the camshaft if it is upside down.
thanks
Kenny m

[taysidedragon]

It doesn't matter which cam is up. Number 1 and 4 fire at the same time, one is a wasted spark.

[Eldrick]

It doesn't matter which cam is up. Number 1 and 4 fire at the same time, one is a wasted spark.

AHHH!
Clever stuff.  thanks

[McCabe-Thiele (Ted)]

As has been said with the wasted spark system as timing is 1/4 and the cam runs at half crank speed it makes no difference as there is no distributer reliant firing order. The advancer will only fit in one position so it's not bothered if it's 1 or 4 on compression as there is always a spark at the right time on both those cylinders.

Just make sure you use the correct valve timing mark T on the advancer.

I did have doubts after I did mine! https://www.sohc.co.uk/index.php/topic,27959.msg261801.html#msg261801

[Eldrick]

Definatley on the T 1-4 mark not the F mark. I have one of those electronic points, Boyer I think it is, so next complicated job is maknig sure the timing is correct. Maybe get to that by Wednesday

[McCabe-Thiele (Ted)]

There are a few versions of the Boyer system when I fitted a Dyna electronic system to my 400 it was easy enough to do the static timing on 1/4 to get it running. When it came to setting  the dynamic timing for 2/3 that took me some fiddling.