Crankshaft timing marks-meaning ?

[backlander]

What do each of the marks on the crankshaft mean. T= 1= F=


So if your told to line up on the T1 mark, each of which has a line, do you line up with the T or the 1 when installing your timing belts. I have read it both ways, line up on the T mark, line up on the 1 mark, It's driving me crazy. :swoon: :smilie_happy: :smilie_happy:

 

[joedrum]

with the one mark is what i do ...the f mark is the fire mark for plugs....dont know what the T mark is

 

[dan filipi]

It will say T-1 with a line cut in the flywheel that lines up with the case mark. That line is what should be used.

 

[joedrum]

on 1200 there lines at T,1 and F ...i think 1100s and 1000s are marked different

 

[backlander]

Yeah, I'm watching a Steve Saunders video on a 1200 right now and he says line up on the T mark on the 1200. Mine has line up marks in the middle of the T, 1 and the F mark.

 

[Bobo]

"T" = Timing
"F" = Firing

For timing belts it's as has been said "T1" centerline lined up with the mark next to the sight hole on top of the engine and the pulleys lined up with marks at top of the shield behind them.

 

[danf]

This might help.. The T-1 is used to set your Timing The F-1 is read when you are shooting a timing light in at idle on #2 spark wire, F-2 will be read on the #4 spark wire, this can be done using the timing inspection cap at idle..Oil must be new and clean to read it well..

 

[backlander]

Thanks littlebeaver. :good:

 

[ekvh]

There's also another line with no marks used to check timing dynamically, with a light, at 3k rpm. I've always set mine statically, but I just read a post stating that many Dyna ignitions are off because the rotor from Dyna is larger than stock. Recommendations are to drain a quart if oil to lessen splashing losses out the hole. Another suggestion is to use a length of PVC to catch the splash.

 

[backlander]

Thanks for the info ekvh. Littlebeaver sent me a sight glass he makes out of pvc and plexiglass that screws into the sight hole. It's pretty nifty.

 

[dan filipi]

There's also another line with no marks used to check timing dynamically, with a light, at 3k rpm. I've always set mine statically, but I just read a post stating that many Dyna ignitions are off because the rotor from Dyna is larger than stock. Recommendations are to drain a quart if oil to lessen splashing losses out the hole. Another suggestion is to use a length of PVC to catch the splash.

I tried a piece of PVC, light flashed off everything but the timing marks but beave's plug works nice.