Hello, I'm looking for some direction on a newly acquired boat that had suffered engine damage in the past. The boat is a 2003 Chapparal 190 ssi with a Volvo Penta SX drive and a 5.0 GXIB engine Prod # 3869134 Ser. # 4012080909 (fresh water flush kit installed by dealer when new). This was a salt water boat used in the Ft.Lauderdale, FL area.
The original owner (purchased new) stated that approx 3 years ago he had a hard time starting the engine (crank over no fire), pulled the spark plugs blew some water out and started the engine, it ran good afterwards. The next used the same no start problem, crank over no firing. He let the boat sit a week or so and then retried it to find the engine locked up, even unable to bar over with the spark plugs out.
Now it has sat a few years with the spark plugs out. I removed the engine and found the exhaust risers to be very corroded, one crumbled at the hose connection. I had to beat the pistons out for removal and I am in the process of a rebuild. New riser elbows were purchased #3862664 same # as originals. I thought maybe the original internal exhaust flaps were corroded out, but now a local Volvo dealer informed me that this original application did not use exhaust flaps. I'm used to seeing water flaps in Merc Cruiser engines. I don't want the rebuilt engine to suffer this costly issue again. Before I reinstall the engine is there a better fix, or were the very corroded and occluded risers my problem all along for the water in the cylinders.
Thanks
The original owner (purchased new) stated that approx 3 years ago he had a hard time starting the engine (crank over no fire), pulled the spark plugs blew some water out and started the engine, it ran good afterwards. The next used the same no start problem, crank over no firing. He let the boat sit a week or so and then retried it to find the engine locked up, even unable to bar over with the spark plugs out.
Now it has sat a few years with the spark plugs out. I removed the engine and found the exhaust risers to be very corroded, one crumbled at the hose connection. I had to beat the pistons out for removal and I am in the process of a rebuild. New riser elbows were purchased #3862664 same # as originals. I thought maybe the original internal exhaust flaps were corroded out, but now a local Volvo dealer informed me that this original application did not use exhaust flaps. I'm used to seeing water flaps in Merc Cruiser engines. I don't want the rebuilt engine to suffer this costly issue again. Before I reinstall the engine is there a better fix, or were the very corroded and occluded risers my problem all along for the water in the cylinders.
Thanks
