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    AQ131D Timing Question

    I have the AQ131D, have had nothing but problems trying to set the timing after the head was rebuilt. I added a rebuilt carb as well. I aligned the timing marks as follows: Cam dot on pulley to the notch in the plate attached to the valve cover. The crank sprocket (small gear that the...
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    Aq131d cylinder head question

    Well after months of trying to work out a back fire issue, I decided to tear the engine down and do some cleaning. I also decided to get a new carb which I recieved today, came ready to install from the box. I also picked up a cylinder head in excellent condition from a running aq151, here is...
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    Volvo aq131d cylinder block question

    The # 4 cylinder has a steel ring just inside the exhaust port. Mine is rotted and I was able to pop it out cleanly. Where can I get a new one to put in and can I use a bit of JB weld or some other bond to place behind it to help keep it sealed so there is no leak between the block and the...
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    Cannot get rid of a Backfire on AQ131D Volvo

    Not sure what the problem is, been through everything numerous times. Started when the fuel tank pitted and sea water got in the fuel, killed the engine. I repaced the fuel tank and all lines hoses, etc. cleaned the Carb and did a rebuild kit on it. Adjusted the air mixture 9 1/2 turns per...
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    Alternate Carb for Volvo Penta AQ131D

    I have a Volvo Penta AQ131D with the Solex Downdraft Carb. I have had the carb rebuilt and it still doesn't work properly. I would like to switch the carb with another similar or something that is compatible iwth the engine that I can buy new. I have tried to find other Solex carbs like the...
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    AQ131D distributor

    I had some issues with timing last year, and have resolved those. The engine still backfires even after a carb rebuild, so I got to thinking maybe the distributor or timing was a little off. I rotated the crank until the #1 cylinder was TDC and rechecked the timing marks, all line up...
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    volvo penta AQ131D idle issue

    I had some issues with this boat after ingesting water through a faulty gas tank. I replaced the tank, fuel filter, fuel pump, and rebuilt the carb, cleaned out the intake manifold, and replaced all plugs, cap, rotor. Had some trouble getting it to start, needing multiple throttle pumps and...
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    fuel question on volvo pent aq131d

    Replaced the fuel tank, hoses, rebuilt carb, replaced fuel filter. I turned the boat over and it just cranked and cranked and cranked, no fuel coming to the pump. Pump is mechanical and works fine. do I need to syphon gas into the filter first? Do I fill the carb bowl with fuel or just keep...
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    fuel sending unit

    I purchased a used fuel tank (poly cross link type) with a sending unit installed, I have it hooked up normally, the pink wire to the center of the unit and the black to the clip on the side of the unit. My old unit was the same except it was aluminum and had the same sending unit with the same...
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    Need help with Volvo Penta

    Volvo Penta AQ131D 4cyl. Last October was the last time this boat was running, at that time the only issue it has was a backfire when I throttled the engine up slowly, if I did it quick no problem. Well that last time out, I took a few waves which ended up getting into the gas tank which was...
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    Replacing Fuel Tank

    I have a volvo penta 4 cyl. AQ131D engine. The boat is a 20 foot 1984-87 Tiberias Fisherman 185 with a 32 Gal. below deck aluminum tank. Last October, I was out on the bay when the boat went dead, got towed in and found out I had a bunch of holes in the top of the fuel tank which allowed salt...
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    Alternator question

    I have a volvo AQ131D 4 cyl engine. I had issues before with timing and got that corrected. My new problem started about 3 boat trips ago. I went out and noticed that the volt meter only read about 10 amps, it never went up when driving. Boat started every time as well, so I assumed no...
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    good samaritain ruined my day!

    I tried to help a stranded jet ski and ended up running aground rather quickly in a fast current and sucked a lot of beach sand into the motor, I took the strainer out and it was filled to the top with sand. Boat temp quickly rose, turned it off and while sitting in the channel getting hammered...
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    Volvo Penta Aq131d Backfire

    After a stuck tension pully through off my timing, I got the boat running after replacing all the timing gears (old were corroding) and a new tension pully. reset the timing . I adjusted it to 6 degrees by the manual specs. put it in the water and it ran fine until I throttled up, once I...
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    Volvo Penta AQ131D will not start

    I believe the engine is a 1989 AQ131D 4 cyl. I had the boat since last May, ran great through the winter until this past March. I took it out and when I throttled up, the water temp rose to 200-220. Immediately shut down and began to try and find the cause, no problem found, ran the boat at...
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