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    Aq151, New head gasket and bolts, confused about torque.

    Replacing the head gasket and bolts on a aq151a, the Volvo manual says 20nm - 40nm then 120 degrees. The instructions that came with the new head bolts say; 20nm-40nm-60nm, then loosen 90 degrees, 60nm then 90 degrees. Do they differ in specs cause of the bolts are new?
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    RTH: Leak behind raw water pump after replacing belt.

    Yesterday I replaced the serpentine belt on my 4.3gxi-b, in the process I kinda pulled a little on the pump and now there is water coming in once past 2000rpm.. Got a big trip tomorrow planned..
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    whats the purpose of these PCV valves? defect?

    I have a 4.3GXI-B, see sig for serial. on top of the exhaust risers are a "PCV valve" #3857761, the starboard side does "gurgle" alot after engine is stopped, the port side however is not making a sound at all.. are one of these valves defect since they behave differently, whats the purpose...
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    4.3GXI-B Slurping sound when shut off.

    Hi all, VP 4.3GXI-B. see sig for serial. Edit: look at post #4.. i know these pumps are supposed to make some sound, but what is normal? I feel like mine is making a rather high pitched noise. at idle it is the only noise i can hear from the engine.. quite sweet to have such low engine noise...
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    beach switch and leak/play in steering cylinder..

    Hi gurus.. Engine 4.3GXI-B 3869132 serial. 4012077611 Sterndrive DP-SM1.95(M22) 3868913 serial. 4202059888 I got no "beach switch" on the boat, so I can limit the tilt of the outdrive. want to adjust it so I can limit the tilt so it dont hit the bathing platform when I take the boat out of the...
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    Play in steering. replaced cable and hub. what now?

    reagrding VP 4.3GXI-B 4012077611. I got some play/loose steering. replaced the cable and steering hub. got better, but I feel the play is not within the cable/mechanical, more like it is the hydraulics if you know what i mean, it got some drag but it does not move the stern?? about 20 degrees...
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    Webasto, diesel heater. tips to installation.

    as i have bought a new boat, I plan to stay a few nights and evenings in it and would like to install a dieselheater/Webasto etc in it. but wondered where to install it..? got a 22ft daycruiser with a I/O. should i install the heater in the enginebay, then just one outlet in the cabin? easy and...
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    Essential instruments. what do you have?

    rearranged my instrument layout today so I could flush mount my chartplotter. now I`ve done it so that I have an option for a 6th instrument on the port side of the steering wheel. I have; rpm with hour counter mph fuel level coolant temp oil pressure volt meter trim gauge I use faria...
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    Bought myself a new boat, my first VP.. joy!! 4.3GXI-B some questions..

    Hi gurus of the sea.. bought myself a new boat today.. Its a 22ft 2007 Miami 670, designed by the legendary Jim Wynne.. It got a VP 4.3GXI-B in it with the duoprop sterndrive. cant wait to get it in the water, going to be a huge upgrade from my ol 1986 MCM140.. wondered though: Is there...
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    Power Tilt basics, help...

    Hi Gurus of the seas... I bought my first boat last season, with an Mercruiser 140 and Alpha one sterndrive. one thing that puzzled me was the way the power trim acted. today my setup is like this: two switches, one off/on/on and one up/down. pic...
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    defroster on a raw water cooled Mercruiser 3.0 140HP

    Hi guys, I was terribly annoyed with fogged up windows last season. and I want to install a defroster so I can have some nozzles pointed on the window. tried everything last year but I realized i need something more to get rid of the condensation.. got plenty of space to put it under the...
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    Live help needed! tourqe specs. MCM 140

    After my original 1985 MCM140 block went bad, i`ve aquired a 1977 donor engine with a good block. 86 #A401501 77 #4648980 so i`ve used the cylinder block from the 77, and the head from the 86. but it blew a head gasket just after 5hrs of boating. I torqued it to 93 ft/lbs, I wonder if this is...
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    Mercruiser 140, 1977 block, 1985 head. service manual?

    Hi fellow boaters.. After my original 1985 MCM140 block went bad, i`ve aquired a 1977 donor engine with a good block. 86 #A401501 77 #4648980 gotten all bearings, seals, gaskets new now. and are about to put it together. going to use the 77 block and pistons, and the 85 head, carb, pushrods...
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    alternative oil pan gasket merc 140.

    hi all. rebuilding my Mercruiser 140 this week. but I got a little problem. i can no longer get a hold of a oil pan gasket for my Mercruiser 140, 1986, A401501 here in Norway. and i need to get the boat floating and ready to go on friday. would it be alright to use "engine sealant", i couldn't...
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    Mercruiser 140 busted.. got a donor engine, decoding serials..

    hi guys, first time i`ve posted here. been reading alot since i got my first boat 1month ago.:) i have a 1985 Draco 18 suntop with the Mercruiser 140 engine and alpha one stern unit. but the cylinder block is busted, leaks both water and oil. suspect previous owner neglected to prepare for the...
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