[Roadsters] Top dead center for #1 piston

[Bubba]

Quick way to see if you are at TDC on the correct stroke.

Mark the distributor (not the cap) where No. 1 spark plug is, and pull the 
distributor cap off.  If the rotor is pointing at or near #1 you're right, 
if it's opposite, you are off by 180 degrees.  Turn the crank one 
revolution.

Saves having to pull the valve cover.

Bob Winslade
1966-1600 Missy
1967-1600 Bender

----- Original Message ----- 
From: "John F Sandhoff" <sandhoff at csus.edu>
To: <datsun-roadsters at autox.team.net>
Sent: Tuesday, November 06, 2007 4:47 PM
Subject: Re: [Roadsters] Top dead center for #1 piston


>> ...until the TDC mark on the crank pulley is lined up with the timing
>> mark on the front cover...
>> Still have to be sure you are at TDC by checking that cam lobes
>> are pointing upward.
>
> If the mark lines up (and is correct), you'll be at TDC. You may be at
> top of the compression stroke (#1 firing) or the top of the exhaust
> stroke (#4 firing). But you're at TDC.
>
>> how is the tick marks on the crank pulley marked? Where is 0 degree
>> and what is the increament?
>
> Zero degree is the 'last' hash mark (in relation to the rotation of
> the crankshaft). Each mark is 5 degrees. Make it easier on yourself,
> rub a piece of chalk on the marks to make them stand out.
>
> Remember to plug the vacuum advance line, and the idle speed
> must be correct during dynamic adjustment (if idle is too high
> some mechanical advance starts to be applied).
>
> -- John
>     John F Sandhoff   sandhoff at csus.edu   Sacramento, CA
> ________________________________________
>
> bubwin at mts.net
>
> Datsun-roadsters mailing list
>
> http://www.team.net/archive
>
> http://autox.team.net/mailman/listinfo/datsun-roadsters