
Originally Posted by
barnacle bills marine
In the 2005 model year we have about 30 3.3 liter ETEC's running around. The 2005 model year was a hard engine to get. Large backorders that took months to fill. We received some of the first ones off the line. Out of these engines we had 2 one a 250 and he other a 200 that seized up solid without any warning. Both enignes had under 10 hours on them. Both were some of the first batchs. After that that is all the powerhead failures we have seen. We did have a 2006 225 that blew up but the customer was running with cheap West Marine TCW3 oil when the ETEC was set up to run XD100 oil. It lasted 80 hours on this oil. If yours were delivered in July then that was a later batch. Our model year change over is in July so the 2006 were right around the courner.
The tech should of pulled the spark plugs out. It would be a sure sign if it was in the gearcase or powerhead.
There are a few things that I would look at if it is the powerhead. First is the oil tank. Is the right oil being used and is there any water in the system? The second is the running and temps profile to see if everything has been running at the correct ranges. Is the enigne sitting on a bracket? If so take a good look at the temps and see where its been running. I also like to install the high flow water pickups on all bracket boats. This is a very cheap and easy to install kit. I think its under $20.00 This will allow more water to be pulled into the engine. I would ask if the boat is propped out right. The 225 should be turning between 5150 to 5500 rpms. Im guessing the tech had a laptop with him to check for any codes. Did he find any and if so what were they?
As you can see there are many items that will need to be looked at. Who is doing the service?