Volvo Penta AQ 130 D overheating giving me fits

[Allbutwet]

Re: Volvo Penta AQ 130 D overheating giving me fits

Ok ranger. It took me sometime to remember.(thanks to captmellos link) But yes you are right. The only hole should be the ones for the bolts and the drain hole in the bottom of the elbow. The manifold should fill completly with water on the water side. The water exits via the copper tube going into the exhaust elbow. And both gaskets are identical as you posted. So if the horse shoe shaped section was open then you were not getting enough water flow to the head. I'm actually surprised it didn't peg your temp gauge out.

 

[ranger55]

Re: Volvo Penta AQ 130 D overheating giving me fits

Thanks allbuwet, this has been a real pain, new to volvo motors and have not worked on any motors in years. It appears the previous owner made his own gasket and put it on upside down, or on the exhaust elbow. I do believe he could not figure out why it was overheating, thus good price on the boat. He did have the motor completely rebuilt. I believe he put all the parts back on himself and when he put the exhaust elbow on he put the opening on the gasket over the opening on the elbow, upside down, if you know what I mean. I can see how he was easily confused, as I was. Just glad I did not blow the motor or head gasket. Thanks to captmello for the link, it did confirm my thoughts and cleared up the confusion. I should have the gaskets in a few days hope it will take care of the problem, I will update. Great forum, great people, THANK YOU ALL.

 

[capt.sam]

You must have the correct thermostat. When I bought the boat the engine had no thermostat and eventually blew the head gasket and cracked the head and valve seats at the rear of the head.So I found a used car head and ground the valves and machined the head for the tube in the front of the head and bolted it on and yes now the heat sender is at the rear of the head. Temperature reading was over 200 and yet at the front of the it was cool. After viewing the thermostat and the design of the thermostat distribution housing I came to the conclusion on how the system works also with some information from factory repair manual. See attachment.

 

[bruceb58]

Don't resurrect 4 year old threads.