Crap! Not AGAIN!

[rgreenwell8962]

Well, after painfully deciding to sell our 2500scr, we finally listed her and got an offer. I had absolutely no worries, as I have taken such good care of her. Replaced the engine 200 hours ago, new bravo III and complete transom assembly two seasons ago, new port manifold last year due to freeze damage, likely caused by a brief power outage whil out of town because I have a bilge heater.

Survey says? Cracked stbd manifold with 130 and 160 compression in 2 of the cylinders due to water likely caused from the cracked manifold. Obviously I am going to make this right for the buyer and get her ship shape but DAYAMN! I know what the manifold is going to run me but anybody have any clue how much I should expect to pay for one, maybe two cylinder jobs??

I swear I could have bought two boats after the money I have dropped in this one. I have no idea how this could have happened. I take every precaution to care for the engine. I even drain the manifolds during the winter to prevent freeze damage should the power go out again. The mechanic doing the compression check said it was likely cracked last year from the inside and overlooked during inspection when the port manifold was replaced, because he suspects the two cylinders that need fixed were caused from water slowly leaking since last year.

Secondly, the surveyor said that there "may be" cause for concern in a stringer because it "sounded hollow". NOT soft, hollow. The mechanic, who my broker has looking at it says he does not see or hear any sings of that. BUT, since the surveyor says so, we have to do a minor core sample.

Nonetheless, I am going to make this boat right and hope that the buyer does not get scared away. Hell, it will be darn near new by the time we are done with it.

Back to my question. Whataya think the cost to do two cylinders would be?

Happy boating everyone!

I am now thinking twice about a bigger boat.

[Phillbo]

What year 2500?

[rgreenwell8962]

2001

[mmwjr]

rgreenwell8962, this is why you should not just drain the mainfolds (and engine block) but back fill with antifreeze as power outages are common and you end up with as you said CRAP. What did the other cylinders compression test at? Are they both on the same bank (side of the engine)? Did the mechanic say the low compression was due to a head issue or piston rings, price to repair depends on fault. Frankly 160 doesn't sound that bad but all cylinders should be within 10% of each other. Lower 100's not good.

[rgreenwell8962]

mmwjr. Can't argue with that.
I am waiting for the report, but I believe that they are on opposite sides. The 160 is on the opposite side. The one that is on the side of the cracked manifold is much lower. All others are within spec, even the 160. The 160 is a teeny bit low, but still within spec.

[mmwjr]

I don't understand what a cracked manifold (exhaust or intake) has to do with low compression. Low compression would be the result of a blown head gasket, cracked head, bad valve (intake or exhaust) in head, bad valve seat, worn piston rings, hole in piston, or crack in cylinder wall.

[mmwjr]

sorry stopped mid thought, had to run. Anyhow most of what I mentioned would result in very low to zero compression. I believe you have a leaking valve due to either a bad valve or valve seat. If you manfolds have been leaking while you used the boat last season this would have allowed water to enter the cylinder by the engines back pressure. Water cause the exhaust gas temp to rise and result in a burned valve to seat. A valve good would fix the problem. This could run ~$1000.00 for both heads.

Not sure what to think about the hollow sound on the stringer. Typically that would mean rotten wood.

Best of luck

[rgreenwell8962]

You are spot on. I believe there was a slow leak. As for the stringer, two other mechanics cannot seem to hear what the surveyor heard but the buyer is going to have it drilled to be sure.
Looking at 3g for new manifold and the heads shaved.

[mmwjr]

Ouch, but that's sounds about right for the work you listed.
If no one else thinks the stringer is bad you might be ok here.
The surveyor is payed buy the buyed and looking after his interest, you would want the same for yourself. Is the buyer paying fo th core sample and repair?

[rgreenwell8962]

Yeah, I want the buyer to enjoy this boat as much as my family has so I am going to do whatever it takes to make it right. Sucks that I have to put so much money into it and not get to enjoy it, but it is the right thing to do. Core sample is in the morning. Stay tuned. Yes, buyer is paying for that.

[rgreenwell8962]

Core sample DRY!!!!!!! Get these heads shaved and the manifold replaced and start looking for a bigger hole in the water.

[mmwjr]

Great News!

So how big of a whole are you looking to make?

[rgreenwell8962]

Good question Mike. 36+. Figure I would go for broke.