4 replies to this topic

[Boyee]

Hi guys, should be a quick one!

I cant find my clamp bolt anywhere and been through god knows how many bolts but cant find the right size.

Does anyone know the correct size?

Also, what order does the HT and distributor have to be in?

I thought it was 1-3-4-2 from fan side, and anti-clockwise on the dizzy starting from top right?

So...
cyl.1 to dizzy 1
cly.3 to dizzy 3
cyl.4 to dizzy 4
cyl.2 to dizzy 2

or.
cyl.1 to dizzy 1
cly.2 to dizzy 3
cyl.3 to dizzy 4
cyl.4 to dizzy 2

Think i am confusing myself!

[dklawson]

The clamp arrangement is comprised of several bolts. There are 2 that go vertically down into the cast base holding the sheet metal clamp down, and there is one long bolt that goes "horizontal" and squeezes the sheet metal together to hold the cylindrical body of the dizzy. I believe they are all 1/4 UNF bolts. The two vertical ones are short, hex head bolts. The long horizontal one (from memory) my have a square head to hold it in place against the sheet metal bracket when the nut is being tightened.

The firing order is 1-3-4-2 counterclockwise around the cap. #1 piston/cylinder is the one closest to the fan. The actual position of the terminals on the cap can vary. If the engine is "undisturbed" the approximate position of the #1 lug on the distributor cap would be somewhere between 1:00 and 2:00 o'clock positions when you're standing at the front of the car looking down on the dizzy cap. HOWEVER, it's not at all uncommon for the distributor drive gear to be inserted incorrectly during an engine rebuild and this will throw off the position of the distributor. It's not a big deal, you just need to know where #1 is.

Rather than walk you through this in depth, please see my PDF on static timing. It will tell you how to determine when #1 is at/near TDC on its firing stroke. Once you know that you can determine where #1 is on your dizzy cap and there's a section in the PDF that tells you how to use that information to put the plug wires on in the correct sequence.
Static Timing PDF

[Boyee]

Spot on with the reply

Bolts just been found.

Some concerns to whether the dizzy drive is installed 180degress out, (this is a fresh rebuild and my first). Will read the PDF see if that helps...

Cheers

[lrostoke]

Easiest way see if dizzy drive is 180 out is remove rocker cover.

Turn the engine till it is TDC on No 1 cylinder (closet radiator), check the rocker gear for number one cylinder can both be wiggled, this will mean both valves are shut and its compression stroke. If the rockers can't be wiggled then turn engine again 360 degrees till its at TDC again.

Now look at rotor arm, if its pointing roughly 2 o clock then all is well in the world.

Edited by lrostoke, 19 November 2009 - 05:35 PM.

[Boyee]

All sorted i think. Cheers guys