When "installing distributor on TDC", use the 0 mark, which is TDC.

However, that is not the timing procedure. Set the spark timing against the 5 degree BTDC mark. Datsun typically specified 5 or 7 degrees timing.

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Hi Guys

i was going through this link

http://datsun1200.com/modules/mediawi ... php?title=Ignition_Timing

Feel that the information is not sufficient enough for me regarding Advace and Retard as i am not a technical as much, can any one tell me when installing distributor on TDC which mark should i select from Advance and Retard is it middle of both ? then configure it later as per the page or what ?

thanks
Regards
sumith

the 0 mark is TDC. The 5 mark is 5 degrees before TDC

HI DD

According to this page
http://datsun1200.com/modules/mediawi ... le=Installing_Distributor

1971-1972 and 1973-1976 has different timing marks isn't it ? mine is 1974 model what should i select 0 or 5 as TDC ? I have selected 5 as TDC now

Thanks
Regards
sumith

hah dd,

I see distributor and help and that's what I give everyone. Shameless self plug :P

Yes

> Find TDC of cylinder #1 by looking at the the valves and the timing mark on your pulley.

Looking at the valves means:
1. Remove the rocker cover
2. Rotate engine until TDC marks line up
3. Check to see if both rockers for 1st cylinder have play
4. If they don't, rotate the engine a full turn
5. Verify that rockers for cylinder #1 have play

That's TDC of the No. 1 cylinder.

Find TDC of cylinder #1 by looking at the the valves and the timing mark on your pulley.

With the dizzy out of the car put the dizzy cap on (with the rotor in there a well) and mark on the outside body of the dizzy (with a marker or something) the centre of the number 1 contact (where you're going to put the number 1 high tension lead.)

Take off the dizzy cap and turn the rotor so it's pointing at the mark before sliding the dizzy back into the engine block. When you get toward the bottom the rotor is going to want to slide anti-clock wise (in the direction of the firing order) so you want to turn the rotor clock wise about 20 degrees or so. So when the dizzy is fully installed it is as close as possible to the mark you made before.

Put in the adjusting screw but leave it a little loose to fine tune the timing later. Install your spark plugs high tension lead and everything else you've disconnected.

Start the car and set your timing. I use roughly 10 degrees base timing at about 800rpm. Then set your dwell after that.

No, TDC will be at 0 mark, not at the 5 mark.

hI dd

I turned the Crank pulley removing no #1 Spark plug and kept a screw driver into it and let the piston to come to the top highest on it , that time the Crank Pulley is 5, so assumed that it is TDC, is it correct ?

thanks
regards
sumith

Yes it looks that way to me.

How did you determine it was at TDC? When you line up the marks, it will at TDC of #1 or TDC of #4.

Just reverse wires #1 & #4, and #2 & #3. It may start up directly.