posted 08-09-2002 08:28 AM ET (US)
I have now had the opportunity to put about 15 hours on a pair of Merc 115 EXLPTEFI4SSW 25" that are on our water rescue boat, and I have a few opinions.First, about the boat...
It is a Outrage 22' cuddy with Whaler Drive and super console. This boat has been set up as a combination fire supression and water rescue vehicle. Through the topside of the cuddy is a high pressure attack gun. This is connected by means of flex hose to a 1000 gpm pump that is mounted under the leaning post.
The boat has a T-Top, full electronics (radar, chartplotter, 3 radios, cell phone, depth sounder), full lights and sirens, complete rescue gear, foam system, etc.
This past winter, Mercury donated a pair of 115 EXLPTEFI4SSW 25" to replace the onld 110 Johnsons.
The new engines are wonderful. While not available in a counter rotating model, any list is easily trimmed out. Starting these motors is a dream. They are so quiet that there have been times that I have had to check the tachs at idle to make sure they were running.
Hole shot is good, but not as immediate as with 2 strokes.
Top end with all the equipment and out team of 3 is about 33 mph.
I am still not sure if these engines burn gas at all. Last night we spent about 4 hours doing a lot of high speed searching (for lost PWC riders AGAIN). Total fuel consumption was less than 20 gallons.
These engines do have one MAJOR drawback however. Shifting from fwd to rev is a complete bear. Merc has said that it is ann ignition problem and they are aware of it. As explained to me, when shifting like this, the ignition shuts the motor off for less than .5 second to allow the gears to mesh into reverse. Well this ignition shut down can not occour until the engines have set below a certain RPM. Replacing the aluminum props with stainless ones have helped a bit, as the added weight of the props help slow the engine quicker; but it is still very noticeable (BTW the stainless props were another donation by Merc).
All in all, I am very impressed with these motors. They have proven reliable, economical, and quiet. Not to mention the reduction in emmissions.
Brian