Search results

  1. T

    Mercruiser 4.3 general questions

    I just bought a 1991 Bayliner capri with the mercruiser 4.3 V6. I am wanting to change the oil and plugs before I take it out. I did see that getting to the pugs are going to be fun. My issue is I can not feel a drain plug on the oil pan. Also i can not seem to find the oil filter. Can anyone...
  2. T

    rpm issues on rebuilt 3.0 merc

    Hello all. I need some help here. I just rebuilt my mercruiser 3.0 140 hp motor out of my 84 VIP boat. I had about 2 hours of runtime on the rebuilt motor and everything was doing great. When heading back to the other side of the lake from my fishing spot my rpm's started bouncing up and down...
  3. T

    need 1 question answered asap please!

    I need to know if the mercruiser 3.0 181ci 140hp out of my 84 vip boat is mechanical lifters or hydrolic?
  4. T

    replacing pistons on a 3.0 - quick question

    I am replacing the pistons in my mercruiser 3.0 140hp motor. What are the torque specs , or are there any, for connecting the connecting rod to the crank shaft? And while im on this subject, what are the torque specs for the head bolts?
  5. T

    140hp mercruiser 3.0 gasket question

    I am in the process of rebuilding my mercruiser 3.0 140hp motor. It came out of my 1984 VIP boat. I have been told this is the chevy 2 motor. Of course after breaking the motor down I do see GM stamping all over the place. Can I buy the oil pan, valve cover, and exhaust manifold gaskets from a...
  6. T

    merc 3.0 rebuild

    I have a mercruiser 3.0 that gave me some trouble last week. I after doing a leak down and compression test I decided to pull the head off. When I removed the head I first noticed that the 4th piston had about a 1/2 in hole burned in the center of it. I then noticed a blown head gasket all the...
  7. T

    boat manufacturer question.

    Ok, I am getting ready to buy one of three boats. First is a 1991 Ebb Tide 18'6" open bow. It has a fresh mercruiser 4.6 v6 and is really clean Second is a 18' 1990 Maxum open bow with the 4 cyl mercruiser motor. This one has been very well maintained. And finally there is a 1989 VIP 17 1/2'...
  8. T

    1984 Mercruiser 3.0 140 hp questions

    I have a 1984 VIP with the mercruiser 3.0 140hp motor. I have some knocking coming from the rockers and had a question. Is this model hydrolic or mechanical? If mechanical what do they need to be spaced at? I am also getting ready to check the timing. Does anyone know what the timing needs to...
  9. T

    3.0 mercruiser low rpm's

    I had recently bought a 1984 vip 19 foot ski/fish boat. Overall this boat is very well kept. The first time we took the boat out we were hitting about 45 mph and at about 2800 rpms. The last couple of trips out to the lake we were only hitting 30 mph and about 2200 - 2500 rpm. I just cant...
  10. T

    1984 mercruiser 3.0 140hp engine swap questions

    What would be a good direct fit motor to replace the 3.0 with. The 3.0 140 hp just isn't enough for this 19' boat I would like to put a bigger motor in it but I'm not sure what would fit good.
  11. T

    1984 vip 19' with mercruiser 140hp 3.0. questions!

    I had just bought a 1984 VIP ski boat that is in very good condition. I am needing to replace the plugs in the 3.0 140 hp mercruiser. What plugs are recommended for this motor and what would the gap be? Also, what is the recomended prop for this boat? It was a dog getting out of the whole and...
Top