Rinker 206 Captiva

[92rinker206]

Hello Folks,

I am new to this forum and just wanted to clarify a few questions.  I did some searching before I posted but still alittle confused.

I just purchased a 92 Rinker Captiva 206 (great condition, Minus some floor rot that the PO took care of before selling to me)

the PO is a long time freind and previous boss, Keeps everything in Mint condiotion... 
Specs:
92 Rinker Captiva 206 Bow rider
5.7 Mercruiser (Brand new maybe 15-20hrs on it before i purchased (it was a long block)
I believe it had a 21P (but was pretty chopped up) So i put on a 19P

~ Today I had three people on Boat (aprox. 600lbs) Me in skippers seat, and 2 in stern (1 port 1 starboard) I couldnt get the boat to plane even at WOT...  My solution was a weight dist. probalem so I moved both people to bow... and boat planed fine. does that sound correct?
~ Before I changed prop it took forever to get out of the whole, and I had to rev it to aprox. 5k Rpms to make it feel like it was actually going at some speed.
, but now that 19P I get a better Whole shot, and the boat moves well (my crappy water PSI speedo says 25mph...  Im thinking its way off GPS on phone said 40 at 4500RPM...fully trimmed down (does that sound about right?)
~ 3rd and final question Im kinda "NEW" to boating and I rarely use the trim, which many people say I should be trimming at all times... when starting off should the trim be trimmed all the way down, or all the way up? 


Thank you for reading my story...  Safe boating

[QC_Mark]

Re: planing with people - I would imagine you should be able to get on plane even with the 2 people in the stern - I've had 4 adults and 4 kids (everyone except me in the stern seating and planed quickly - 226xl with the 5.0 merc).  I wonder if the prop is right or some other factor (unlikely from reading your post, but is the bottom of the boat covered in buildup)?  With one of my last boats I took speed readings every 500 rpm and someone on (iboats.com prop section) was able to tell me the correct prop (with some other data on the boat also) - not sure if someone on this site does that also or not.

With trimming, you should start all the way down and slowly work your way up once you are on plane (don't go over halfway on the trim gauge)...its all by feel (mine seems to run the best close to halfway up - it will improve your efficiency - you will see the rpm and likely speed both climb as you trim up).

[raybo3]

Hey 92rinker206 welcome to the RBO. Sounds to me that maybe you had the outdrive trimmed up when you were taking off. It should be all the way down, once on plane then you can trim up.... Good luck and keep us posted..

[Just in Time]

Start with the trim all the way down, as soon as you come on plane, depending on water conditions you can trim up to a more neutral position. You will feel the difference and a small boost, however your bow will become more sensitive to pitching (up and down) You have to find that sweetspot each time for each condition. If you put your drive up too much, you will cause cavitation (no good).  Repeat each time you come off plane or while at idle speed.
You might want to enhance performance with a hydrofoil, as you dont have trim-tabs (100$-200$ installed), this might give you the edge you need to break plane more easily and get more stable while running at WOT as you will slightly increase your boats running length. (the smaller the boat, the more effective hydrofoils become)

As for your speedo, check if it is clogged (at intake), hose might have a leak or is kinked or if the hose is properly connected to the rear of your gauge, leaking water (thus could explain previous floor rot. Those speedos just suck.

[92rinker206]

Hey folks thank for the replies I know I gave some Vauge information

I know the line is not clogged I shot 30PSI of air through it (From Speedo Side towards the stern)   Once I knew Line was clear I did it in reverse And speedo moved. 
Today I was out on the lake and I was by myself...  ( i didn't have the tips you guys posted ) But according to my speedo, I was doing 20MPH at WOT...  But my gps said 35MPH...  I have read up on this "type" of speedo sending unit is the most inaccurate.  So Im not concerned about the speedo thing...  I am more concerned about my speed in general

I was looking at a hydrofoil (stingray XRIII Hydrofoil stabilizer)  I read the reviews it seems to be helpful.

As for the otherday I was trimmed all the way down when I started.  I was at a dead stop and as soon as i started throttling the bow started raising, so I would back off , then start again... with same result.  Note they were sitting in to two seats facing the bow next to the Motor cover.

Side notes: The boat is freshly waxed and cleaned prior to putting in water about a month ago and still is pretty clean. 

what prop pitch are you folks running?

I hope i answered all your questions, and might be able to help me :)

Thank you folks

John

[QC_Mark]

From a dead stop it is normal for the bow to come up - keep giving it throttle and it will come back down and on plane.  In my boat it is more noticeable with more people in the back of the boat. 

19P 3 blade aluminum prop on mine...nothin fancy.

[frodo13056]

I had a 1988 206 cuddy with the Merc 5.7 / 260 HP / Alpha 1 drive. I ran a 21 pitch stainless when just cruising and could get around 50 - 52 MPH with 3 people and a cooler on board at about 4900 - 5000 RPM. It was a bit slow out of the hole but good top end. Also had a 19 pitch stainless for use when skiing, boarding, etc. Great holeshot but slower on the top end - around 45 - 48 MPH at around 4900 -5000 RPM. I also ran a hydrofoil and was able to keep on plane at around 16 MPH with the 19 pitch prop.
You mentioned that you hit 40 MPH at 4500 RPM - that sounds about right for an aluminium 19 pitch prop. If you took it to 5000 RPM, you'd be in the 45 plus range is my guess.
Aluminium props will flex more than a stainless prop - so the stainless will give you better performance at just about all RPM ranges.
Also, props can have their pitch altered usually only 1 size up or down and can be done usually when having a prop repaired. So, it's possible for a 19 pitch prop (stamped on the body of the prop) to be pitched to a 17 or a 21 pretty easily and you'd never know it by looking at the prop. If the 21 pitch prop was "pretty chopped up", do not put it back on the boat until you get it repaired as the vibration from the damaged prop will eventually cause big dollar damage to the out drive / lower unit.

[92rinker206]

Hey folks just giving an update

Yestarday I Had 4 = ME people on my boat (as described above) all sitting in the aft seats.   The boat took forever to plane I tried acclerating really gradually.   Then I tried WOT  I didnt see much of a difference but gradually worked better.   Then my friend wanted to go tubing so all still in rear so plus one on a tube...  I couldnt get on plane, but then i moved 1 person to the bow got on plane then moved him back to rear.
So im not sure what the deal is...  Im thinking hydrofoil or or auto trimtabs

now here is my other problem can I put a tow mast on this boat?  maybe keeping the rope up a little bit might help the tubing / boating experience...


Otherwise Everything else is good and i appreciate all suggestions

John

[stlouisramsfan]

I put the smart tabs on my boat, made a world of difference... only $120 bucks too... do a search planes out fast now...

[sabre85rdj]

Hi all, I'm new to this group as well but this problem sounds like a trim problem.  I'm running a 90 206 Captiva with an open bow.  The boat came with a 5.0 L engine but was later changed to a 5.7 Corvette project engine that Mercruiser had laying around and didn't need anymore, but that's another story.  If I don't have the trim all the way down the boat takes a long time to get on plane.  With the trim all the way down, and 4 big guys in the boat the boat will get on plane in about 3-4 seconds.  The boat tops out at around 56 mph(according to the speedo) with a stainless 5 blade prop.   I think it's a 13 3/4 x 19. 

[92rinker206]

something has to be wrong with my boat setup...  I had 1 220 (me) 1 girl (90) 2 other guys 215, n 220 all in aft seats and it felt like it took forever...  I def. have a 19P not sure of size...  and my speedo only reads 25tops...  gps says different though...

I think im gonna sell it, get a newer rinker...  I need a new cover now, automatic bilge isnt working, and my convertable leaks
BOAT Break out another thousand

LOL

i need someone experinced to drive my boat, maybe its operator error

And sabre: from what i understand you r supposed to start out with trim all the way down


EDIT*  How do i figure out my WOT for my prop?   I searched it but maybe i didnt enter the right keywords

[MPII]

Hey there.  I'm new to this forum too, nice to meet all the Rinker Boat Owners!!

I have a 1992 206 Captiva as well.  I have a 4.3LX Merc, 4bbl.  I have had 4 peoplem, lots of gear, (Bag with food, towels, cloths, a portable ketlle grill, but had no problem planing out with an alum. 19 pitch.  I even had no problem the next day with a 21 I was testing out.

Are you sure you had the drive down?  Is the Trim Guage Working Properly????