After not owning a boat since 2003, my wife let me buy one.
I found a 1992 Sunbird Corsair 175 17ft.
The boat checked out, yes, it is an OMC, but the boat is solid. Transom still solid, floors are good, interior in great condition carpet is filthy. A taken care of boat. Oil was just changed in both the motor and the stern drive(I checked). The skeg is broken off, but could be repaired or put a skeg guard on. Prop looked nicked, but I really didn't not look at it that closely.
The motor runs, outdrive shifts... etc.
Now, I took it out last week for the first time and it starts right up. I let it warm up and idled out ast the no wake zone and opened her up. She started to porpoise and slowly came down after about 30 seconds, hmm, shouldn't take that long? Maybe I am not trimming right... All in and acclerate, then trim back out a bit after on plane?
Some other mental notes I took while driving
Idle is not steady in neutral; may sit at 600rpms then shoot up to 1200rpms then it may start to drop back down and then dies. This takes about 5 minutes to do so.
Hard to steer seems like it has a high spot while turning left or right and you then you need to fight it a bit to keep it on the path, straight seems fine.
Noticed some vibration while accelerating, very little.
So I take a closer look at the engine and this is what I found:
Carb a bit dirty on the inside, could use a cleaning on the inside and out. Could be the idle issue
Spark plugs looked a bit rusty on the ceramic, so I replaced them
Plug wires seemed original, but not cracked or torn, in good shape
Water/fuel seperator filter looks like it needs to be changed - could also be the culrpit of the idle
Prop looked pretty beat up on the leading edges, one blade had a nice tear along the the edge about 2 inches long and about 1/4 inch deep. Could be the vibration issue. Prop is marked as a 14 1/2 x 19 R
The questions are:
Am I on the right track for the idle issue, I wouldn't call it a rough idle, it would be more at 600 for a minute or two, then jumps to 1200, then slowly climbs back down. I would call it more of an ADHD idle.
Would the prop(I wish I had a picture of it) cause the little vibration issue?
I was going to order a new prop and since I may have up to 6 people in this boat, should I stick with the current sized prop?
What is causing the hard steering? Do the cables need to be replaced or greased?
What about the porpoising?
I am looking for answers not critisim because it is an OMC.
Thanks
I found a 1992 Sunbird Corsair 175 17ft.
The boat checked out, yes, it is an OMC, but the boat is solid. Transom still solid, floors are good, interior in great condition carpet is filthy. A taken care of boat. Oil was just changed in both the motor and the stern drive(I checked). The skeg is broken off, but could be repaired or put a skeg guard on. Prop looked nicked, but I really didn't not look at it that closely.
The motor runs, outdrive shifts... etc.
Now, I took it out last week for the first time and it starts right up. I let it warm up and idled out ast the no wake zone and opened her up. She started to porpoise and slowly came down after about 30 seconds, hmm, shouldn't take that long? Maybe I am not trimming right... All in and acclerate, then trim back out a bit after on plane?
Some other mental notes I took while driving
Idle is not steady in neutral; may sit at 600rpms then shoot up to 1200rpms then it may start to drop back down and then dies. This takes about 5 minutes to do so.
Hard to steer seems like it has a high spot while turning left or right and you then you need to fight it a bit to keep it on the path, straight seems fine.
Noticed some vibration while accelerating, very little.
So I take a closer look at the engine and this is what I found:
Carb a bit dirty on the inside, could use a cleaning on the inside and out. Could be the idle issue
Spark plugs looked a bit rusty on the ceramic, so I replaced them
Plug wires seemed original, but not cracked or torn, in good shape
Water/fuel seperator filter looks like it needs to be changed - could also be the culrpit of the idle
Prop looked pretty beat up on the leading edges, one blade had a nice tear along the the edge about 2 inches long and about 1/4 inch deep. Could be the vibration issue. Prop is marked as a 14 1/2 x 19 R
The questions are:
Am I on the right track for the idle issue, I wouldn't call it a rough idle, it would be more at 600 for a minute or two, then jumps to 1200, then slowly climbs back down. I would call it more of an ADHD idle.
Would the prop(I wish I had a picture of it) cause the little vibration issue?
I was going to order a new prop and since I may have up to 6 people in this boat, should I stick with the current sized prop?
What is causing the hard steering? Do the cables need to be replaced or greased?
What about the porpoising?
I am looking for answers not critisim because it is an OMC.
Thanks
