Is a bad Stator the cause of so much grief for me?

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,087
Re: Is a bad Stator the cause of so much grief for me?

Your throttle linkage pushing the carb linkgage all the way?
In the drive. Put in F push throttle all the way full throttle.
Turn prop so it engages.That takes any strain off the linkage.
Then go to the carb linkage, push it by hand and see if the lever moves any?
Your motor could have come with 4 different drives.Pics?
Any #s on the top or side anywhere on the drive?
There is a way to identify the drive.Will have to look in my manual and see if I can figure it out.
 

pnwboat

Rear Admiral
Joined
Oct 8, 2007
Messages
4,251
Re: Is a bad Stator the cause of so much grief for me?

That would probably be 1.93:1 drive ratio.
 

hundee r1

Petty Officer 2nd Class
Joined
Mar 24, 2010
Messages
158
Re: Is a bad Stator the cause of so much grief for me?

Got out and did some testing on Saturday.

Had my tacho checked by a shop confirming its spot on.
Water was dead calm, in a river
First WOT run, and as suspected the motor maxed out at 4100 rpm and just under 50km/hr-31MPH-27 knots.
I check with the timing light at WOT confirmed that even tho the timing had been set correct on crank speed only, under load it was 4-5 degrees retarded.
Slowly eased the timing up and the motor started responding well, few tweaks of the carbs along the way and I had the 3 cyl going much better.
Jiggz, fuel filter was 100% full at all times, throttles where 100% level at WOT

So with the 17P we got it to rev cleanly to 4600rpm and max out at 58.6km/hr. -36mph – 31 knots

It was at this stage that we had a good baseline to work with so went back to the ramp to try the 15P.

Straight away we could tell the motor was more responsive, willing to rev freely and make the boat lurch from any revs. Quick check of the timing and it was still bang on, so opened her up and got the same top speed of but this time the oldshool 3 cyl was singing at 5100 rpm.
No rocket ship, but probs as good as it’s going to get with the package as it stands.

Im all ears if anybody thinks this thread needs any more, but I’m content with that.

thanx to all you guys!!
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,087
Re: Is a bad Stator the cause of so much grief for me?

Check the static timing and TDC.
 
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