I finally did compression check on no start Volvo AQ131 and had about 95 in the 2 aft cylinders others 130, 150. I've read this points to head gasket . There are many things I enjoy more than working on an engine but out of necessity( the boat mechanics near me are scared of this Swedish thing even though it's basically a car motor with easy access- else I'd gladly pay them) I've replaced both pumps on this and I've replaced the valve cover gasket on my car but this seems much more involved.I have Clymer( not the greatest) manual and the 98 pg Volvo workshop manual( not super specific)
My question to someone who has changed the head gasket on this or it's cousins-How long would this take and could someone with average mechanical skills who took their time do this? I don't see any special tools needed . Is there better, detailed, specific guidance elsewhere? Also if it is the head gasket would that prevent it from starting? (It turns and I've replaced plugs, points,coil wires,fuel etc.)
Thanks. Sorry for ramble....
My question to someone who has changed the head gasket on this or it's cousins-How long would this take and could someone with average mechanical skills who took their time do this? I don't see any special tools needed . Is there better, detailed, specific guidance elsewhere? Also if it is the head gasket would that prevent it from starting? (It turns and I've replaced plugs, points,coil wires,fuel etc.)
Thanks. Sorry for ramble....