*THE HULL TRUTH is the world's largest FREE network for the discussion of Boating & Fishing. Whether you're researching a new boat, or are a seasoned Captain, you'll find The Hull Truth Boating & Fishing Message Forum contains a wealth of information from Boaters and Sportfishermen around the world.
Welcome to the updated THT!
If you are having trouble signing in, please email feedback@thehulltruth.com with your username and we will help you. We thank you for your patience as we help you access the new site!
Random Quote: When I pray I don't pray for myself, I pray for my wife. God please give her more estrogen.
You are dead on 2 of our new trucks have 500HP Detroits coming out of a 12 liter (if I recall the tag) block. This same engine would not stand up to over the road use (500K/1M mile service) I was told by the factory. These smaller blocks were not designed to produce that much out of so little. This was done with electronic controls and boost. That's why they use the 14, 15 and now 16 liter engines for the high HP over the road applications. The newer engines are nothing like the old ones. Them old Detroits were a POS, very loud, and leaked everywhere.
Starting from a clean piece of paper I would like (hope) to think that Merc got it right. If they didn't, it could well put them out or at least hurt them badly after the B3 and Opti mess they put themselves in.
__________________ 2003 Boston Whaler 255 Conquest w/ twin 200 HPDI's
I've never been a racist. I don't like the white half either.
Why don't you read what others are saying...I'm not the only one who KNOWS diesels are tougher than gassers and that the very small displacement Verado with big HP will have MAJOR heat and probably poor reliability and longevity.
Why don't you read what others are saying...I'm not the only one who KNOWS diesels are tougher than gassers and that the very small displacement Verado with big HP will have MAJOR heat and probably poor reliability and longevity.
Harry
Some gassers have been tougher than some diesels. Be careful when you make sweeping statements.
Tell me how a Yanmar is simpler than a Verado again.
And some women could kick my butt...but that doesn't make women stronger then men. Of course every generality has exceptions...but the reality is 99.9% of the diesels will be stronger than their equally powerful gasser counterparts.
As for how they are simpler, let's start with no ignition, no plugs, no coils, etc. Add in no variable valve timing (I don't know of any diesels that have this, though there might be some). Let's not forget no spark control, anti-knock sensors, etc. How much more do you want? Both the diesel and the Veranchor will have some sort of fuel/air management, but that's about where the similarity ends. Diesels generally have fewer parts, simpler electronics, and fewer sensors.
Stop kicking a dead horse. You're the only one here that thinks the Veranchor will be as strong or as simple as a diesel. Apparently you ascribe to Ronald Reagans maxim "facts are stupid things". Bottom line is if you push 250 or 275 HP out of a 2.6 liter block, it will not have the longevity of the same HP motor with a larger displacement.
And some women could kick my butt...but that doesn't make women stronger then men. Of course every generality has exceptions...but the reality is 99.9% of the diesels will be stronger than their equally powerful gasser counterparts.
As for how they are simpler, let's start with no ignition, no plugs, no coils, etc. Add in no variable valve timing (I don't know of any diesels that have this, though there might be some). Let's not forget no spark control, anti-knock sensors, etc. How much more do you want? Both the diesel and the Veranchor will have some sort of fuel/air management, but that's about where the similarity ends. Diesels generally have fewer parts, simpler electronics, and fewer sensors.Harry
Don't make general claims if you can't back them up then.
Diesels have a lot of parts that can sink or burn your boat that outboards simply don't have like large raw water through hulls, strainers, heat exchangers for coolant & oil and many feet of plumbing to connect it all. In addition you have exhaust hoses, risers and fittings which can fail due to old age or corrosion. Outboard has no high pressure fuel system under the floor inside the boat that can (and has) burn a boat to the water line. The diesel will also have either a marine gear or sterndrive to maintain either of which is at least as complicated as an ignition system on an outboard.
Some of diesels legendary reliability is just that, legend. The diesel reliablity legend was built on big heavy slow turning turning Cat, Cummins,& Detroit diesels running with less (or no) turbo boost. That is a different story than a Yanmar comparable to a Verado in output with a relatively small 4.1 liter belt driven ohc 4 valve/cylinder turning 3800 rpm through a stern drive.
On top of this a Yanmar/Mercruiser package comparable to a Verado weighs 400 lbs more. For the majority of boats run by THT users a Verado (or other big OB) simply makes more sense than a Yanmar.
My posts started off about why a Veranchor will not have good longevity, You've turned it into a diesel vs outboard, safety, hoses and wires discussion. Get over it! None of the items I mentioned about the diesel vs outboard had anything to do with anything but the motor and it's controls. Nothing about hoses, pumps, thru hulls, etc. You are comparing apples to oranges.
My initial assertion, which almost everyone other than you agrees with, is that the Veranchor makes too much power for such a small package to have any kind of longevity. The longevity issues you speak of with the diesels only backs up my point...the longevity factors in when they try to push too much power out of a block.
Also, I and most of the other posters agree that it is more complex than most, if not all, diesels. That is fact. I'm not talking about ancilliary systems, since you can't compare an IB to an OB in terms of installation complexity. The OB bolts onto the back and is connected by a few wires and a fuel line, while the IB, as you pointed out, requires coolant hoses, longer fuel lines, etc. But that does not change the fact that the diesel engine itself is inheirantly simpler.
As for the weight thing, compare the Veranchor to other similarly powered OBs and you're looking at 10% moreweight for the same power...not a really good trade off IMO.
You r horse will never get up...it's dead, like the Veranchor will be shortly ;-)
There is no comparison in longevity and durability when it comes to diesels vs. gas engines. When a gas engine is dead and forgotten…a diesel is just getting broke-in.
RE: Mercury Verado.......run Forest, run........ 
