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Spark Plug Lead One

Posted: Mon Jun 16, 2008 4:28 pm
by rubisubi
Excuse me for being a dumb ass but if im looking into my engine bay at an EA81 motor, which is the no. 1 spark plug lead???

Cheers in advance lads.

Posted: Mon Jun 16, 2008 4:43 pm
by Gannon
If you are looking for cylinder no 1, it is (looking at the engine) the closest cylinder to you on your left. If you are looking for spark lead no 1, it depends on where the rotor button is.

Best way is to find TDC of cylinder no 1 on compression stroke, then where the rotor is, that is spark plug no 1

Posted: Mon Jun 16, 2008 4:48 pm
by rubisubi
Cheers, so how do i find TDC of cylunder no 1???

Posted: Mon Jun 16, 2008 6:08 pm
by littlewhiteute
Pull out the front drivers side spark plug (NO.1).
Take out the timing blanking rubber in the bellhousing on the drivers side.
Here you can see the flywheel, place your finger in the spark plug hole and rotate the engine until you feel pressure blowing against your finger. The flywheel has the ignition timing marks and TDC marked as (0).
At this point keep rotating until the zero (0) mark lines up with the pointer in the bellhousing. The is TDC NO.1 (and 2) and NO.1 is at the end of the compression stroke.

Posted: Mon Jun 16, 2008 10:02 pm
by El_Freddo
littlewhiteute wrote:Pull out the front drivers side spark plug (NO.1).
Take out the timing blanking rubber in the bellhousing on the drivers side.
Here you can see the flywheel, place your finger in the spark plug hole and rotate the engine until you feel pressure blowing against your finger. The flywheel has the ignition timing marks and TDC marked as (0).
At this point keep rotating until the zero (0) mark lines up with the pointer in the bellhousing. The is TDC NO.1 (and 2) and NO.1 is at the end of the compression stroke.
Make sure your not 360 degrees out from top dead centre on the spark stroke. To find this trace the No 1 spark lead back to the dizzy cap and turn the engine over til the rotor button lines up under the No 1 spark lead (dizzy cap off). Then line up the timing marks for TDC on the spark stroke of cylinder No 1.

Cheers

Bennie

Posted: Mon Jun 16, 2008 11:29 pm
by chubby37
were are you...if you get lost someone mite live close enough to stop in and lend a hand