Re: 345 sucking water-solved
Pressurize each cylinder. Remove the coolant cap and you should be able to determine which head is giving you the problem. Its all part of a leak down test.
Good results/news....
Well I pressurized each head, and found some air to pass thru the exhaust , so I plugged the exhaust pipe, and then had the air leak into the radiator (indicating to me that they must be a hole/failure in the head some place, allowing the air pressure to leak thru).
I tested both sides, and found the same scenario, so ordered a set of JD heads ($130.00 each)for the 590V and bought some lapping compound and pulled my valves, springs, and seals, I did quick a compression test after i had it all together, and found the it in the 140 PSI range (was 115 PSI before).
It started right up, and ran fine, the thermostat cycles as it should, and I mowed lawn with all the vigor it had before.
I want to thank you for the suggestions.
I always say, that I am not a mechanic, but I can follow direction if told what to do.
Take care, and enjoy the summer!
Clarence