4.3LX Mercruiser (1994) Tune-up Questions

Woody-jh

Seaman
Joined
Jul 24, 2005
Messages
59
Engine Serial is OF421280. (1994 Mercruiser)

1) I am not getting consistent specs for the tune-up that I am going to do.

a)Engine Cover Decal
-Plugs 0.035" gap and Timing 8 BTDC
b)Owner's Manual
-Plugs 0.035" and Timing 10 BTDC.
c)Mercruiser Manual 18, pg 1B-7
-Plugs 0.040" and Timing 8 BTDC.

Which values do I use? An for removing the plugs, cold or warm engine?


2) Also, how easy (or not) is it to remove the Rotor and Wheel, since I understand that they are secured to the distributor shaft with Loctite? The procedure is in Mercruiser 18, Page 4B5

Thanks, Woody-jh
 
Last edited:
Top