Nope, 2 sets of gauges show the same. This Gen VI engine has 200 psi compression. Base timing is now set to 2 deg. BTDC, was originally 10 deg. BTDC before the issue showed up.
So my Volvo Penta 7.4GL with an EST electronic distributor was missing at over 3000 RPM. The engine runs fine at lower RPMs. This is a relatively new GM gen VI engine. The mechanical aspects of the engine are excellent with compression values of 195 to 200 PSI on all cylinders. I was originally...
So I spent a lot of time investigating the marine EST ignition timing curve by running the engine in the water under load and measuring the timing with an advance timing light. I also discussed my findings with the EST distributor manufacturer (United Marine). The result is that the EST timing...
I contacted a distributor vendor and he sent me the attached timing advance curve for the marine EST distributor. Total timing would be the base timing value plus the values in the attached curve.
I have a Volvo Penta 7.4GL engine with a new EST distributor (the old VP EEM ignition finally died). I have set the base timing per the instructions (10 deg. BTDC when in spark advance lock-out mode). Here's my question: Does anyone have the full timing advance curve for this engine and...
I have a 2 year old Teleflex SL3 top mount control. The control is in pristine shape and looks like it is right out of the box, no corrosion anywhere. The "throttle only" or "neutral" button sticks in the "in" position when the throttle lever is in the neutral position several times each trip...
I will be replacing my 1996 VP DP-S drive soon. I see that there are several newer versions of VP duo-prop drives (DPS-A, DPS-B, DPS-M). What are the differences and pros/cons for each version? Which one is most durable/longer lasting? Or should I just replace with a new DP-S drive? I realize...
I have a Mariner Magnum 40 (2 stroke, 4 cylinders, 2 carbs, long shaft, power trim, oil injection). The serial number is 0G297526. What year is it?
Thanks,
Keith
