kingtut512
Recruit
- Joined
- Apr 22, 2011
- Messages
- 2
I recently purchased a 1973 Delta with a 170hp Volvo Penta I/O. Now I'm hoping it's not as big of a loss as I think it is.
You see I checked the oil when I first bought it. Crystal clear. The guy I bought it from said it hasn't been changed since 2007. I don't know if oil can look fresh out of a bottle if it's been sitting that long. We ran the engine for a minute or so and it ran fine. Didn't get to run water through it because he didn't have one of those hose adapters that cover the water intake.
So I take it home all excited to have a supposedly good running boat I could take to the lake the next day. I went over the engine to make sure it would be able to handle the lake the next day. Got out my stern hose adapter ( or whatever you call it), started the water, and started the engine.
Had it running for a good five minutes when I noticed oil leaking from the oil cooler? I think to myself, "A little leak, no big deal, I'll check it out." I disconnected the water line on the oil cooler and oil/water came pouring out. When I cranked the engine a lot more water/ oil came pouring out. I then removed the oil pressure switch, and volla more water/ oil.
I looked over the engine for cracks and couldn't see any. However I did notice one of the freeze plugs had just been hammered back in place. Then I did a compression test and they read:
Cyl 1 = 130 PSI
Cyl 2 = 128 PSI
Cyl 3 = 140 PSI
Cyl 4 = 100 PSI
Cyl 5 = 115 PSI
Cyl 6 = 130 PSI
I'm not sure how to diagnose this any further without ripping apart the engine. If you notice cylinder 4 and 5 are significantly lower than the others? Could it just be a head gasket? Or is my block cracked on the inside? How would I know if it was asides from ripping the engine out?
Thanks,
Kingtut512
You see I checked the oil when I first bought it. Crystal clear. The guy I bought it from said it hasn't been changed since 2007. I don't know if oil can look fresh out of a bottle if it's been sitting that long. We ran the engine for a minute or so and it ran fine. Didn't get to run water through it because he didn't have one of those hose adapters that cover the water intake.
So I take it home all excited to have a supposedly good running boat I could take to the lake the next day. I went over the engine to make sure it would be able to handle the lake the next day. Got out my stern hose adapter ( or whatever you call it), started the water, and started the engine.
Had it running for a good five minutes when I noticed oil leaking from the oil cooler? I think to myself, "A little leak, no big deal, I'll check it out." I disconnected the water line on the oil cooler and oil/water came pouring out. When I cranked the engine a lot more water/ oil came pouring out. I then removed the oil pressure switch, and volla more water/ oil.
I looked over the engine for cracks and couldn't see any. However I did notice one of the freeze plugs had just been hammered back in place. Then I did a compression test and they read:
Cyl 1 = 130 PSI
Cyl 2 = 128 PSI
Cyl 3 = 140 PSI
Cyl 4 = 100 PSI
Cyl 5 = 115 PSI
Cyl 6 = 130 PSI
I'm not sure how to diagnose this any further without ripping apart the engine. If you notice cylinder 4 and 5 are significantly lower than the others? Could it just be a head gasket? Or is my block cracked on the inside? How would I know if it was asides from ripping the engine out?
Thanks,
Kingtut512
