A10ha10ha7
Recruit
- Joined
- Sep 3, 2018
- Messages
- 1
Good day, I just bought a 72 Glastron v 187 Tri Hull open bow with an Volvo Penta AQ170 inboard on an AQ270 drive.
when I got the boat the freeze plug on the cylinder head was popped. Little bit of water in the engine oil.
i m planing to replace the freeze plug to test if the engine has a good block.
i couldn’t find a workshop manual for the AQ170 so I got the Volvo 1969 164 b30 workshop manual instead. But seems like the water cooling system is totally different.
ive been reading a lot of tip and knowledge people share on the AQ170 seems like everyone is pointing to a weak cooling system.
I don’t understand how the cooling system works on my AQ 170. Do the raw water pump pumps water to the recirculating pump and the engine uses raw water pump to cool the block? Or does it use antifreeze to cool the block. I don’t have a strainer on my, and no antifreeze overflow no heat exchanger that holds antifreeze
i was thinking to myself since AQ170 is an old rare engine if my block is good after replacing the freeze plug I m thinking mabe I should use the car side of thing for cooling by using air cooled radiator and a fan and antifreeze make it into a close loop for the block. I saw Ipdusa sells some flexible lower and upper radiator hose and a 160f degrees thermostat for the engine.it seems very doable it must extend the life of the engine by not letting sea water in the block I think.
and useing the sea/raw water pump to cool only the exhaust. But I can’t find any info on the AQ170. Has anyone had done this before can give me some pointer to which cooling pipe to block off to go close loop antifreeze radiator and fan setup.
when I got the boat the freeze plug on the cylinder head was popped. Little bit of water in the engine oil.
i m planing to replace the freeze plug to test if the engine has a good block.
i couldn’t find a workshop manual for the AQ170 so I got the Volvo 1969 164 b30 workshop manual instead. But seems like the water cooling system is totally different.
ive been reading a lot of tip and knowledge people share on the AQ170 seems like everyone is pointing to a weak cooling system.
I don’t understand how the cooling system works on my AQ 170. Do the raw water pump pumps water to the recirculating pump and the engine uses raw water pump to cool the block? Or does it use antifreeze to cool the block. I don’t have a strainer on my, and no antifreeze overflow no heat exchanger that holds antifreeze
i was thinking to myself since AQ170 is an old rare engine if my block is good after replacing the freeze plug I m thinking mabe I should use the car side of thing for cooling by using air cooled radiator and a fan and antifreeze make it into a close loop for the block. I saw Ipdusa sells some flexible lower and upper radiator hose and a 160f degrees thermostat for the engine.it seems very doable it must extend the life of the engine by not letting sea water in the block I think.
and useing the sea/raw water pump to cool only the exhaust. But I can’t find any info on the AQ170. Has anyone had done this before can give me some pointer to which cooling pipe to block off to go close loop antifreeze radiator and fan setup.