Cat 3116, 300hp vs 350?

Author Message   David Hays Advanced Member Username: mistahays Post Number: 313 Registered: 02-2006 Posted on Sunday, January 14, 2007 - 09:01 pm:    Guys.... looking at a 1999 searay with twin Cat 3116's rated at 300hp each. My question is this: Some 3116's are rated at 350hp. Does anyone know the difference between the two 3116 (electronic fuel controller?) and are they upgradable from 300 to 350hp?   Capt William Myers Visitor Posted on Saturday, January 20, 2007 - 10:15 am:    David The 3116 has had major problems over its life. I would advise against the purchase of any vessel with these engines. Go on line and check out some of the threads.   David Hays Advanced Member Username: mistahays Post Number: 322 Registered: 02-2006 Posted on Monday, February 05, 2007 - 11:41 am:    upon further research i heard the same. Thanks for the added color.   Donald Steen Visitor Posted on Sunday, March 18, 2007 - 02:05 pm:    Dave, The 3116's that were problems had the engines casted in a Belgium plant. Your Cat dealer will be able to provide you with the bad block numbers...not all 3116's were bad engines, I have 2 great ones in my 42 Sea Ray!   David Hays Advanced Member Username: mistahays Post Number: 346 Registered: 02-2006 Posted on Tuesday, March 20, 2007 - 07:03 pm:    i also heard these were prone to turbo problems. Not sure why since there are thousands of these running in vehicle and non road applications today. Any additional color?   David Hays Advanced Member Username: mistahays Post Number: 426 Registered: 02-2006 Posted on Wednesday, June 20, 2007 - 12:26 pm:    so, I'm back to looking at SeaRays. Specifically the 40 Sedan Bridge, which commonly has 3116's or 3126's. I plan ot spend $200k or so. So far we know to watch for: *those with certain faulty engine block castings *turbo issues *aftercooler issues. Should i really be avoiding these diesels altogether or what? Seems to be a lot of these out there running and holding value. At what hours to these begin to get tired? I'm a very experienced mechanic but not with Cats. Thanks David   David Hays Advanced Member Username: mistahays Post Number: 429 Registered: 02-2006 Posted on Wednesday, June 20, 2007 - 12:40 pm:    I suppose i could go gas, but that's an awful lot of boat to push with a couple MC380's.

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