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Old 06-19-2013, 08:12 AM
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Well the motor is in my boat so the water shoots out the exhaust, so it would be hard to tell that

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Old 06-19-2013, 10:03 AM
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Well I hear a little hope, I got my compressor and pumped so air in there, the ones with good compression just pumped up and were fine the one with zero compression and the one with 110 I can hear it coming through the carb
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Old 06-19-2013, 02:52 PM
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Ok guys got the heads off, the cylinders look fine. I flipped the heads over and filled the valve area with water and the 0 compression one drained out the intake valve real quick, and the cylinder with 110 drained as well just a little slower, the others were fine
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Old 06-19-2013, 05:00 PM
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Pull those two intake valves and look at the seat in the head and the seating face of the valves. It could be a chunk of carbon or it could be something distorted the valve seating areas. If all that looks good look at the valve stem where it goes into the guide for any bend or burr that maybe preventing the valve from closing against the seat.
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Old 06-19-2013, 06:10 PM
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It's a bent valve
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Old 06-19-2013, 08:00 PM
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Now for the tough question, what bent the valve? They typically do not bend on their own so most likely the engine injested something that got caught between the valve face and the seat and the valve spring bent the valve. But the obvious question is what was it and where did it go? Hate to see you put it all back together and later find there is a screw lodged in the top land area of the piston or some such "ah sh..." event.
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Old 06-19-2013, 09:22 PM
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Well in that cylinder it burnt the electrode off the spark plug so maybe that jammed in there, other than that all the other plugs looked fine
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  #23 (permalink)  
Old 06-19-2013, 09:37 PM
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or if the engine ingested a screw or something,it could have also ruined the plug
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Old 06-20-2013, 11:45 AM
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Need an opinion guys.... My funds are low due to the economy so I'm trying to figure out the best options to get the motor back together so my kids can have some fun for the summer, here are some options

#1 just replace the bad valves and run the boat and do the major fix in the winter
#2 get some good 350 heads, drill the steam holes and run them, I can find them pretty cheap on Craigslist
#3 try and somehow get the money to have mine redone that will be around 400-450
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Old 06-20-2013, 12:14 PM
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A machine shop will charge you probably $325.00 plus the new valves to go through those heads. Head gaskets, plugs. Dont overdue the timing. 36MAX in a boat.
Whats the "major repair"?
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Old 06-20-2013, 06:47 PM
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I would go with option #1 - just replace the two intake valves that are bad/suspect, replace the head gasket, and put some time on it before you decide if it needs anything else.

The other cylinder compression number seemed OK, I gather the engine was running good prior to the episode.

No saying that a major engine overhaul would hurt anything but before you sink a lot of money into it I would want to know more.
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Old 06-20-2013, 06:54 PM
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I would remove engine and do a proper repair job
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Old 06-20-2013, 10:53 PM
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Thanks for the input guys I'll try and see what I can afford to get this fixed
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Old 07-01-2013, 07:10 PM
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Another question, I ordered the gaskets and the manifold gasket that I took off has these little dime size holes for these center ports and the ones that came in dont have the holes, what are these hole and do I need them and if so can I just cut round holes in the new gaskets?
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Old 07-01-2013, 08:07 PM
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I am not sure about the hole size in the gasket but are they in line with the steam holes in the block/head? If so yes you need to open them to allow the engine to cool properly.
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