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Author Topic:   Latest on my Repowered 16SL
UnderDog posted 06-10-2003 12:06 AM ET (US)   Profile for UnderDog   Send Email to UnderDog  

Hello all, almost 2 weeks have passed since I drove one hour (three hours on the return trip) to get my boat from the Evinrude dealer. They were to have installed a new 90HP ficht outboard. Upon my arrival the dealer still had not fired up the motor, nor had they finished the full install ... I had called them before I left, to confirm that it would be ready...... famous last words.. Guaranteed to jinx any install. I was very eager to pick up my boat, as I had plans to take out my family on Sunday (also another sure way to jinx, making plans before boat is done). After the dealerships mechanic put the last screw in the wire retainer,
My Whaler was taken outside to test the motor.
water goes on, squeeze the fuel bulb to prime the gas line, turn on the key switch to let the electric fuel pump prime the fuel lines the rest of the way to do the engine self check. And now, itís finally time to hear my new motor for the first time!! click goes the key, and weeeeeeeeeeee, goes the starter motor, but alas no sound of the engine even moving. The mechanic thinks it might be my battery. I knew that it turned my old motor just fine last week, before the powerhead blew. The mechanic replaced my battery with his "known good one" and it didn't work. I got to grin and a big ďI told you soĒ. He even tried to jump and boost both batteries ... but still no cupie doll. My brand new motor was still sitting on my beloved whaler dead. I suggested that it sounded like a bad starter, but was told it was tested at the factory, and there was no way the starter was bad.... Happy to say we were both right, we pulled the starter motor out, and the mechanic said every thing looked OK, I agreed. However, there was no gear on the end on of the starter motor shaft. After reviewing the technical drawings the mechanics and I concluded there should be a gear on the shaft. The gear was missing, but where did it go? After a quick probe with my finger, I located the gear right up beside the flywheel. But, where did the c-clip go? Unfortunately, this all was going to have to wait until the next day. The mechanics wanted to go home. Saturday morning I spent on the phone, waiting to hear if they could locate that missing c-clip. No luck! They had opened up the cowling around the flywheel to search for the clip. It wasnít there. They ended up replacing the clip with a new one. Finally they called me to come pick up my boat. All was well!

when I launched her that night, the motor purred like a kitten, even my wife was pleased on how quite the motor was. We drove her very slow,
(break in time). First hour no more then 1000 rpm's, second hour 2000 rpm's etc etc etc. First weekend with new motor consisted of lots of slow driving. In the first four hours of driving my new boat, I only used eight gallons of gas. hmmmmm might be nice, but then again I was driving slow. On the second weekend, I decided it was time to test the prop setup.

Enter big "Sal DiMercurio" who lives in my neck of the woods. My wife went to school with his son (small world). If you ever have the pleasure to meet Sal, you will be impressed on how down to earth and knowledgeable he is. Sal came over to my house, and looked over my boat. He took some measurements and told me my motor was to low. On his recommendation, I raised the motor up all the way. Sal also pointed out I was using the wrong size prop, for my setup.

Original set-up -
ss 14 x 21
wot 4900 rpm's
gps 31 mph

Salís advised -
moving engine up
new prop 13 X 19
wot 5400
gps 36 mph

Sal re-evaluated and suggested new prop size again
prop 13 1/4 X 17
wot 5900
gps 44 mph

Sal brought his whaler out (nice whaler at that) , and ran next to me on the water. According to his water speedometer, I was doing 48 Knot's he says that's close to 50 Mph..... too cool
The boat jumped up on plane and was very smooth on the water. It felt really nice to have her perform so nicely!!!!



Sal DiMercurio posted 06-10-2003 12:50 AM ET (US)     Profile for Sal DiMercurio  Send Email to Sal DiMercurio     
Keith, the water speedo is 4 mph off, [ slower ] at anything over 40 mph but my sonar [ Furuno LS6100 ] is right on the money, matches my gps & the police depts radar.
You were bouncing back & forth at 48 & 50 mph, I could see you back off the throttle when she went to 6,000, i'm not certain but i think your engine maxes at 5,800 but recently read the new FICHTs are 6000 rpms, so better check the manual on that.
I should have brought a camera because your "little toot" [ 16sl ] really rides pretty for such a short boat.
I have a hunch the 13 x 19 is going to be the prop after she's broke in.
Glad your pleased.
Perry posted 06-10-2003 02:08 AM ET (US)     Profile for Perry  Send Email to Perry     
Why does one gps measure max speed at 44 mph and the other 50 mph?
Sal DiMercurio posted 06-10-2003 10:30 AM ET (US)     Profile for Sal DiMercurio  Send Email to Sal DiMercurio     
Because it's not adjusted right.
When I first got my gps, it read 29 mph at wot, when my true speed was low 50s.
About 20 kts off.
Bigshot posted 06-10-2003 10:56 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
How does one adjust a GPS? I thought it is a satelite signal.
bobgilsp posted 06-10-2003 03:07 PM ET (US)     Profile for bobgilsp  Send Email to bobgilsp     
I've got a Honda 90 on my 16SL with a 13.25 X 17" pitch prop. I also hit 5800 rpm with a light load on board. Haven't checked the speed with GPS, but I think its's in the low 40s (mph), maybe about 35 kts. My cavitation plate is just below the bottom of the "V". Should I try rasing the engine one or two holes?
Bigshot posted 06-10-2003 03:24 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
UnderDog posted 06-10-2003 03:27 PM ET (US)     Profile for UnderDog  Send Email to UnderDog     
Hello Bobgilsp, the answer to your question is.... yes, raise her up to where the av plate or cav plaate is above the bottom of the v, you will be suprised how much better she will run, you might even have to run a different prop like a 13 X 19 once my engine is past the break end time, i will also have to change my prop....


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