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1978 Mercruiser 140, Delco distributor. I have a dial-back advanced timing gun. When you set the advanced timing, do you subtract the intial timing of 6 from the 35@2000 and set the gun to 29 degrees, or do you just set the gun to 35 degrees and move the distributer to match TOD. After the...

Have a 1989 Wellcraft with Mercruiser 3.0L, alpha 1 outdrive. Motor is actually a 1978 though. I have what sounds like a rattle of some sort coming from the back of the engine down by the drive shaft. I was looking on iboats lastnight and saw that the exhaust shutters can cause quite a...

I have a older style quicksilver shift box, 1989 year, that has a slop in the remote shift cable attach point in the shift box. Its almost an half inch. I cannot get my shifting adjusted properly and i think this is my issue. Any suggestions.

Hello All. Took the boat for a ride with "new" motor today. Its a 3.0L mercruiser. Have an alpha 1 drive. At 2500 rpm when coming off the throttle i get a pretty serious vibration. It you try to cruise at 2500 same viration only not as bad. Seems like it is happening when the drive gets...

I purchased a used 3.0 to replace mine with a cracked block (motor has a 30 day warranty). I ran it for the first time today out of the boat on the ground. After i ran for about 5 minutes or so, i shut it off, and removed the valve cover oil cap. I notice a water/oil milky mixture in the...

Hey guys. Here is my dilemma. I am replacing my 3.0 mercruiser which currently has the valve cover mounted shifting. I have been having problems with the shifting out of foward and reverse even after a new shift cable and following the adjustment procedures. The new to me motor I just...