Transmission wow's

Hans, Just (re)read the whole thread. Can you please elaborate on what work was done on the engines over the winter? I may be having a problem with my 310 and gathering as much info as possible. So sorry for your troubles and also hope that you are getting closer.
Thanks
 
Good to go. Spring launch in 4 days. Everything thing you can do to the engines has been done. She purs. Runs great.
 
I think his last post is the same post I would put on this board before putting her up for sale. All is perfect now, for sale. I dont know, I think he's done with her?? She has been a thorn in the side for quite awhile. A guy can only take so much.
 
I think that would be pretty disappointing for the board's sake to NOT post what happened.

People in the future could benefit from this thread if they know what the issue and resolution is/was.

Doug
 
Don’t know where Hans is at the moment but I do know he has been busy getting ready for his Daughter and Son-in-Law to come home from Washington State and temporally moving in with him and Linda.

I can tell you his boat is in the water and has been tested and for now at least the noise is gone. Now as for what the final solution to the problem was, well you can probably tell from reading this thread, I’m not sure anyone knows for sure. So many things have been down for this issue since July it is very hard to tell which one was the fix or even which one was a contributing factor. The one thing for sure is the problem originated with the engine and engine knock was transmitting noise to the transmission.

I am sure Hans will post back here with his final thoughts on this, and I venture to say that a good deal of time, effort, and money was wasted on the first mechanics troubleshooting skills.
 
EDIT due to reading prior post as I posted this but at any rate, I figured he was burnt out on it. Glad to see just busy. Hope all works out for this season.
 
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gregkjones said:
EDIT due to reading prior post as I posted this but at any rate, I figured he was burnt out on it. Glad to see just busy. Hope all works out for this season.
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To answer your question, yes, it was a trying experience that I don't wish on anyone.

Wow, it has been a long time since I was on this site. Been busy as hell. My daughter and son-in-law just relocated to the east coast and now living with us until they get settled. Son in law is now working and my daughter is still applying for work.

Got the boat in the water on 11 March for seatrial. Problem is resolved and not sure what the hell happened. During the winter MarineMax removed the heads and had them tested. During the leak down test a leak was found which was causing the engine to run rough. I had a dedicated mechanic that was determined to get the problem resolved. Notable to mention is that the same mechanic offered to take a cruise with us on his own time just to make sure everything was working well. That’s what I call dedication. I’ve read a lot of bad comments about MarineMax in this forum but this goes beyond customer service. Hebrought his tools and computer, hooked everything up and we had a great trip from Gunpowder Cove to Lauderick Creek. It was a good day. The boat checked out fine. The ride was great and the computer didn't show any issues.

In conclusion, now that the boat is running right, I’ve also decided to have it brokered. Not sure where we go from here. I have thought about a bigger boat but for now my attention will be to getting the boat sold. The threat of rising fuel prices is a factor not to be ignored.

During the Christmas holidays, my wife and I flew to Honolulu to spend time with our son and granddaughter aboard his 35ft. catamaran. We were on board for 11 days and had a great time. He keeps his boat in Rainbow Marina in Pearl Harbor. We learned how to sail. Great family time and a super experience sailing the Pacific. Who knows what the future has in store but for now, just going to be busy with my family.Thank you all for your suggestions and thoughts. Still will be cruising the bay until the boat is sold.
 
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You might want to look at the PDQ power CATs... they get great fuel economy, and no sails to deal with...
 
The running gear was removed a number of times to remove the torsion plate then again to remove and install a transmission. I have also heard that there is an exceptable amount of torsional noise. Having been a former aviator, noise = bad!
 
I'm guessing your 380 costs $400/hour for 75 hours/year, or, about 30,000/year to own and operate, or, $2500/month, total, including deducting the interest and figuring depreciation, dockage, insurance, maintenance, fuel... It's probably more than that, but that's a good start. Your 380 probably gets about .7 mpg at cruise. It probably burns about 35 gallons per hour doing it. I'm going to assume you cruise about 3/4 of your engine time (max) - the rest is docking, idling... those fuel burns are insignificant. That means, at $3.50 per gallon, your 2000 (MAX) gallon appetite costs about $7000 per year out of the $30,000 budget. Now, gas goes to $5.00. Your bill is now 10,000. Your cost of the exact same boating went up 3,000, or 10%.

How much would you have to cut back your boating to break even again? You need to pay only 7000 for gas, and at 5.00.gallon, that's 1400 gallons. 1400 gallons/35 gph gives 40 hours. So, to cut your 10% yoy increase in boating costs to zero, you have to cut your boating in half. I think I would keep boating the way I wanted to. Idle around a little more. Besides, the losses you would take selling your boat in this market would probably make the price of gas seem free.
 
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Hampton said:
I'm guessing your 380 costs $400/hour for 75 hours/year, or, about 30,000/year to own and operate, or, $2500/month, total, including deducting the interest and figuring depreciation, dockage, insurance, maintenance, fuel... It's probably more than that, but that's a good start. Your 380 probably gets about .7 mpg at cruise. It probably burns about 35 gallons per hour doing it. I'm going to assume you cruise about 3/4 of your engine time (max) - the rest is docking, idling... those fuel burns are insignificant. That means, at $3.50 per gallon, your 2000 (MAX) gallon appetite costs about $7000 per year out of the $30,000 budget. Now, gas goes to $5.00. Your bill is now 10,000. Your cost of the exact same boating went up 3,000, or 10%.

How much would you have to cut back your boating to break even again? You need to pay only 7000 for gas, and at 5.00.gallon, that's 1400 gallons. 1400 gallons/35 gph gives 40 hours. So, to cut your 10% yoy increase in boating costs to zero, you have to cut your boating in half. I think I would keep boating the way I wanted to. Idle around a little more. Besides, the losses you would take selling your boat in this market would probably make the price of gas seem free.
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Thank you, your figures are pretty accurate. We do get about .7 mpg and last years gas bill was $5,600.00 at just less than $3.00 per gallon. Don't even want to think about the $11,000.00 in repairs last year. If gas goes to $5 or even $6 per gallon, hell, I don't even what to think about it. Not saying I'm getting out of boating, just taking a break.
 
I just read the whole thread. I laughed, cried, then laughed again. What sounds to me is the configuration of this type of running gear is prone to this "tortional vibration" noise from the frequency of the power supply. No engine will ever produce the same, exact power pulse per cylinder. The drive coupling typically will absorb this. Any hiccup in power delivery will let drive coupler ratchet the power flow and gear back lash will be heard. Put your trans in reverse, now a idler gear is used to reverse the power flow. An idler gear means more combined back lash. From this I can see how the "tortional vibration" noise would be more pronounced when in reverse.

Not all can pick up on a miss firing or weak hitting cylinder. Easier on a 4 cyl than a V-8. Even harder on a V-20. Some trained Mechanics even have trouble and tend to just start throwing parts at problems. Some manufactures support this and call it "Component Based Trouble Shooting"...... Other Technicians can instantly pick up on an uneven exhaust note. Then simply cancel cylinders for a firing balance check, then move on with pinpoint trouble shooting and end up at the root cause.

Hans: I feel the "tortional vibration" you heard was a "nature of the beast" thing. Your engines firing cycle was unsteady under certain loads.
 
BonBini said:
I just read the whole thread. I laughed, cried, then laughed again. What sounds to me is the configuration of this type of running gear is prone to this "tortional vibration" noise from the frequency of the power supply. No engine will ever produce the same, exact power pulse per cylinder. The drive coupling typically will absorb this. Any hiccup in power delivery will let drive coupler ratchet the power flow and gear back lash will be heard. Put your trans in reverse, now a idler gear is used to reverse the power flow. An idler gear means more combined back lash. From this I can see how the "tortional vibration" noise would be more pronounced when in reverse.

Not all can pick up on a miss firing or weak hitting cylinder. Easier on a 4 cyl than a V-8. Even harder on a V-20. Some trained Mechanics even have trouble and tend to just start throwing parts at problems. Some manufactures support this and call it "Component Based Trouble Shooting"...... Other Technicians can instantly pick up on an uneven exhaust note. Then simply cancel cylinders for a firing balance check, then move on with pinpoint trouble shooting and end up at the root cause.

Hans: I feel the "tortional vibration" you heard was a "nature of the beast" thing. Your engines firing cycle was unsteady under certain loads.
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Hey Ron,

Thanks for your input. My wife and I spent the night on the boat last night. The water was flat. It was great to be onboard again. Took the boat out this morning for one hell-of-a ride. Got up to 35mph before I pulled back a little. The engines sound great. The bay was flat this morning as well. I probably have the most tuned up boat on the bay right now.
 
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