Resto has began! 1988 Image / Ocean express 31 cat TONS OF PICS
09-29-2013 | 10:40 PM
#252
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From: Charlotte Mi.
10-15-2013 | 02:06 PM
#254
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From: Central Square & Fishers Landing, 1000 Islands NY
10-19-2013 | 07:17 AM
#255
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From: Charlotte Mi.
I agree we had so much fun that one day out on Lake Mi it made it all worth while. The motor trouble was all self inflicted so it made it somewhat easier to cope with. Its amazing what will fail when u starve a cooling system for water by introducing air into the mix. With a lot of help & motivation from OSO members & friends Im glad I pushed through, took my time & did it the right way. It should pay off next season when we really get to use it!! Thanks
10-20-2013 | 08:35 AM
#257
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From: Charlotte Mi.
Thanks! I'd be up for that trip. I looked into it a few years ago, rumor has it Chicago is not very boater friendly as I would have expected. I was told just north of there are some nice pleasure boat friendly areas.
10-29-2013 | 11:27 AM
#258
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From: Red Oak, Texas
I may have missed it, but have you opened it up and ran it on max rpm yet?
The reason I ask, is I ran a 177 on a SBC in a 21 foot runabout for several years. Everytime I nailed it and let it stretch out, it did all sorts of crazy things, but all were engine fatalities. It would run all day as long as I didn't run it hard. I'd get comfortable, nail it and just like you, 30 seconds to a couple of minutes, bam! 177 blowers make a lot of heat under load, which leans out the charge for starters. Second, if the carbs have not been reworked for blowers (external reference the power valve or us a plug/jets) when the motor maxes out and settles in, say at 5400 rpm for a bit, the vacuum/pressure between the top of the rotors and the bottom of the carb equalizes and will close the power valves, causing an instant lean situation. Super heat drops hardened valve seats, sticks valves in guides, detonates and bends and burns all sorts of parts, all in a fraction of a second. I tore apart 6 engines in one summer before I figured it out. This was years ago when blowers for boats weren't that common.
I had a carb shop external reference the power valve chamber, by closing off the baseplate passage and installing a "port" in the side of the carb which I ran to the manifold. I could run a numerically lower PV which still allowed me to get a fairly lean idle, but could supply fuel on max boost. Fattened up the rear jets to the point of chocolate plug tips, and it lasted until I sold the rig 3 years later. 75 mph walk-thru!!! It was a hoot!
Maybe something to look at. I read your post and looked at your pics and got alittle deja vue! Hope it helped.
The reason I ask, is I ran a 177 on a SBC in a 21 foot runabout for several years. Everytime I nailed it and let it stretch out, it did all sorts of crazy things, but all were engine fatalities. It would run all day as long as I didn't run it hard. I'd get comfortable, nail it and just like you, 30 seconds to a couple of minutes, bam! 177 blowers make a lot of heat under load, which leans out the charge for starters. Second, if the carbs have not been reworked for blowers (external reference the power valve or us a plug/jets) when the motor maxes out and settles in, say at 5400 rpm for a bit, the vacuum/pressure between the top of the rotors and the bottom of the carb equalizes and will close the power valves, causing an instant lean situation. Super heat drops hardened valve seats, sticks valves in guides, detonates and bends and burns all sorts of parts, all in a fraction of a second. I tore apart 6 engines in one summer before I figured it out. This was years ago when blowers for boats weren't that common.
I had a carb shop external reference the power valve chamber, by closing off the baseplate passage and installing a "port" in the side of the carb which I ran to the manifold. I could run a numerically lower PV which still allowed me to get a fairly lean idle, but could supply fuel on max boost. Fattened up the rear jets to the point of chocolate plug tips, and it lasted until I sold the rig 3 years later. 75 mph walk-thru!!! It was a hoot!
Maybe something to look at. I read your post and looked at your pics and got alittle deja vue! Hope it helped.
10-30-2013 | 09:45 PM
#260
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From: Charlotte Mi.
I may have missed it, but have you opened it up and ran it on max rpm yet?
The reason I ask, is I ran a 177 on a SBC in a 21 foot runabout for several years. Everytime I nailed it and let it stretch out, it did all sorts of crazy things, but all were engine fatalities. It would run all day as long as I didn't run it hard. I'd get comfortable, nail it and just like you, 30 seconds to a couple of minutes, bam! 177 blowers make a lot of heat under load, which leans out the charge for starters. Second, if the carbs have not been reworked for blowers (external reference the power valve or us a plug/jets) when the motor maxes out and settles in, say at 5400 rpm for a bit, the vacuum/pressure between the top of the rotors and the bottom of the carb equalizes and will close the power valves, causing an instant lean situation. Super heat drops hardened valve seats, sticks valves in guides, detonates and bends and burns all sorts of parts, all in a fraction of a second. I tore apart 6 engines in one summer before I figured it out. This was years ago when blowers for boats weren't that common.
I had a carb shop external reference the power valve chamber, by closing off the baseplate passage and installing a "port" in the side of the carb which I ran to the manifold. I could run a numerically lower PV which still allowed me to get a fairly lean idle, but could supply fuel on max boost. Fattened up the rear jets to the point of chocolate plug tips, and it lasted until I sold the rig 3 years later. 75 mph walk-thru!!! It was a hoot!
Maybe something to look at. I read your post and looked at your pics and got alittle deja vue! Hope it helped.
The reason I ask, is I ran a 177 on a SBC in a 21 foot runabout for several years. Everytime I nailed it and let it stretch out, it did all sorts of crazy things, but all were engine fatalities. It would run all day as long as I didn't run it hard. I'd get comfortable, nail it and just like you, 30 seconds to a couple of minutes, bam! 177 blowers make a lot of heat under load, which leans out the charge for starters. Second, if the carbs have not been reworked for blowers (external reference the power valve or us a plug/jets) when the motor maxes out and settles in, say at 5400 rpm for a bit, the vacuum/pressure between the top of the rotors and the bottom of the carb equalizes and will close the power valves, causing an instant lean situation. Super heat drops hardened valve seats, sticks valves in guides, detonates and bends and burns all sorts of parts, all in a fraction of a second. I tore apart 6 engines in one summer before I figured it out. This was years ago when blowers for boats weren't that common.
I had a carb shop external reference the power valve chamber, by closing off the baseplate passage and installing a "port" in the side of the carb which I ran to the manifold. I could run a numerically lower PV which still allowed me to get a fairly lean idle, but could supply fuel on max boost. Fattened up the rear jets to the point of chocolate plug tips, and it lasted until I sold the rig 3 years later. 75 mph walk-thru!!! It was a hoot!
Maybe something to look at. I read your post and looked at your pics and got alittle deja vue! Hope it helped.
Wow, now thats some good info! Thank you ill be doing some research into that issue.
Last edited by GTOKILLER; 10-30-2013 at 09:49 PM.
