"bat"
Burning Brakes
Joined: Feb 2009
Posts: 785
Likes: 3
From: Richmond Virginia
The manual is refering to the battery (BAT) positive (+) cable connection
--as "1963SS" statedSince the starter is used when checking compression I'm unsure why the manual would want the battery disconnected ??---remove the coil wire and have at it.
Last edited by TWISTERUP; Sep 27, 2011 at 02:17 PM.
Thread Starter
Advanced
Joined: Dec 2006
Posts: 60
Likes: 1
From: Finland , 1995 LT-4 P-1SC
Yes, the manual want you disconnect the distributor connector (4 wire), but how you rotate the motor if your battery is disconnected ?
Burning Brakes
Joined: Nov 2008
Posts: 995
Likes: 1
From: Naples Campania
Big *** wrench.
There is a bolt on your crank shaft balance. Remember, the chevy motor rotates counter clockwise in relation to you WHEN YOU ARE IN THE CAR.
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Drifting
Joined: Dec 2007
Posts: 1,647
Likes: 4
From: Argillite KY
Really, to do a compression test just pull the coil wire and crank the engine.
1) Remove coil wire
2) Remove plugs
3) Open throttle
4) Screw compression tester into spark plug hole
5) Turn engine over using the key
6) Record cylinder number and pressure reading
7) Repeat seven more times in different spark plug holes
You're looking for all cylinders to be about equal with not much more than 10% difference between all readings.
And then there's the "Wet Test".
1) Remove coil wire
2) Remove plugs
3) Open throttle
4) Screw compression tester into spark plug hole
5) Turn engine over using the key
6) Record cylinder number and pressure reading
7) Repeat seven more times in different spark plug holes
You're looking for all cylinders to be about equal with not much more than 10% difference between all readings.
And then there's the "Wet Test".