TCBoss302

iTrader: (3)

Thanks, reread thread.

carcrash

Me too. I've spent more on f*king with the engines that I did to buy the boat, on both my last 2 boats. I think I've learned that boats should have boat engines (outboards) or truck engines (diesels), not car engines. They just don't hold up to the sustained load. Think about it: the dyno runs last seconds, and that was OK. Put it in the boat and run for minutes and it blows up (of course you want it to run for hundreds of hours).

These leaks can be caused by inconsistent heating, particularly across the top of the block and the head, combined with very high cylinder pressures. Getting the temperature consistent is not easy. The German car manufacturers need to do this because the Autobahns allow people to cruise at high speed (high load) for extended periods of time. There are very few non-German cars in the left lane on the autobahn. Ferraris? Vettes? Jaguars? Nope. BMWs, Porsche, Mercedes, Opel, VW, yes. I've seen so many GM V8s blown up on the side of the autobahn its bizarre, considering there are hardly any at all over there.

Over the past several decades of owning power and sail boats, and sometimes running serious yachts for much more wealthy individuals, I've seen that maintenance is about 10% to 20% of new boat cost per year.

But I still expect maintenance to be as on a car or house (a very small percentage of original cost). My expectations do not meet my experience...

Marginmn

iTrader: (1)

I've always gone with stock Merc and now Ilmor engines so I've never had a custom engine made. Stupid question here: when you pay a custom builder to put together engines like this- and they grenade on the test run- who eats the cost of fixing the engine: the customer, engine builder, or do you split it?

RaggedEdge

Now that's an interesting question, one that just beggs for an interesting answer.

carcommander

My boat with tame power has not had anything other than maintainance. That was not the case with the big sea rays I owned.

TRL505

Ummmmmm.......well.....ummmmmmmmm......hmmmmm..... .....uhhhhh well......riiiiiiiight. LOL.

BRT

I've been in your shoes a few times with projects. Hang in there, it will work out. I know you didn't ask but in my experience, a conservative approach to the problem has always worked best. Both for my sanity AND my wallet.

Good luck, you can always work on it tomorrow.

Bryan

triple 300s

This has to be one of the worst answers to a question that I have ever seen in my life...

bcfountain

i bet i know the answer to that and probley so do you,,,,,,joe boater

29scarab10

The engine builder in this case did not build complete new engines with all new accessories. He rebuilt 6 year old engines with some 6 year old accessories. If one of these 6 your old accessories caused the problem why should the engine be one the hook?

If it were me, when the engines go back in the engine builder would have his laptop hooked up looking at the called for timing numbers and being verifyed with a timing light First through out the rpm range under no load and then again while under load.

Ofcourse most engine builder will not like this comment because who wants to be in engine compartment at speed with lots off hot stuff and turning belts. Most would agree to due it on the dyno, but ultimately the engine lives (or not) inside the engine compartment.
Allen