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TOPIC: bayliner 2556

bayliner 2556 23 Jun 2009 15:33 #1

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Hi, does anyone know what speed a bayliner 2556 will plane at? I am still having trouble getting it on the plane!!!

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bayliner 2556 23 Jun 2009 15:50 #2

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Here is a similar thread regarding the 2556.

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Rick E. Portland, Oregon
2850 Bounty Sedan Flybridge model
Twin 270 HP 5.7's w/ Closed Cooling
Volvo Penta DuoProp Drives
Kohler 4 CZ Gen Set

bayliner 2556 23 Jun 2009 16:05 #3

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2850Bounty;313744 wrote: Here is a similar thread regarding the 2556.


Cheers some good tips there :)

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bayliner 2556 23 Jun 2009 17:30 #4

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i start to have trouble keeping on plane at about 18 mph, by gps.

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Tally and Vicki
"Wickus" Meridian 341
MMSI 338014939

bayliner 2556 24 Jun 2009 01:45 #5

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My 2556 was the same when I had my 5.7 turning a 15 x 17 prop. Once switched to a 15 x 15, the boat jumped on plane pretty well.

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Craig Capitola Village, CA
1988 Bayliner 2556 (BoatAsaurus)
1996 Trophy 2352 (Mystic)

bayliner 2556 24 Jun 2009 08:03 #6

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Monterey10;313969 wrote: My 2556 was the same when I had my 5.7 turning a 15 x 17 prop. Once switched to a 15 x 15, the boat jumped on plane pretty well.


I wish my would! I have changed the prop to a 15 x 15 but it will get to about 11mph but just will not get on the plane I have a full tank of gas will that make a lot of difference? and should I trim it all the way down and put the trim tabs all the way down too? thanks for all the help :)

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bayliner 2556 24 Jun 2009 12:54 #7

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You may have either a very dirty hull, and/or an engine that is just not performing as it should.
None of what you are attempting to do can be achieved without first going through an entire engine tune up and/or checks! (compression/ignition/timing/complete fuel delivery system, etc.)

You'll get it.... just run down each area....... P of E (process of elimination..... one item only at a time)........ to find what's holding this boat back.

.

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Rick E. Portland, Oregon
2850 Bounty Sedan Flybridge model
Twin 270 HP 5.7's w/ Closed Cooling
Volvo Penta DuoProp Drives
Kohler 4 CZ Gen Set

bayliner 2556 24 Jun 2009 14:12 #8

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Drive and tabs need to be at full down trim. You won't get on full plane until 18-20 mph. At about 11 mph you've just pointed the bow skyward and dug a big water hole with the stern. The boat has to literally climb the water to get ouit of that hole and on plane. Full down trim and tabs forces the stern up as speed increases, keeping the boat's attitude closer to level as it accelerates.

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bayliner 2556 24 Jun 2009 14:26 #9

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Silly question, does your boat have the 5.7 with a 4 barrel carb? If it has the 2 barrel carb, it would never get up on plane. The 5.7 in excelent tune and 4 barrels wide open is what it takes to slowly climb up onto plane. I can back off the throttles at approx 22 mph and get 1.5 miles per US gal.

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Some other areas to check:
Clean bottom
engine in tune
spun prop hub
bad gas (More common these days)
restricted air intake or exhaust.

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Craig Capitola Village, CA
1988 Bayliner 2556 (BoatAsaurus)
1996 Trophy 2352 (Mystic)

bayliner 2556 24 Jun 2009 16:16 #10

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Yeah, its a 5.7 with a 4barrel q jet I did a full survice new everything and it runs very good I have been up to the boat today to wash it and I thought I would check the trim tabs and they were not moving! It turned out the fuse holder was falty! so now I have the tabs all the way down (they were level) and I have the drive all the way down so its ready to try out tomorrow im guessing that the boat would not plane unless the tabs are all the way down?

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bayliner 2556 24 Jun 2009 16:35 #11

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Some do not give the proper importance to TAT (total advance timing).
This is a critical portion of your ignition timing!

If you raise the RPM, and have your good ole strobe type timing light connected, what is your spark advance doing at 3,000/3,200 rpm?
(see your OEM specs for what this should be)

Yes, you will need to have the harmonic balancer marked off up to approximately 30* clockwise from the TDC mark in order to do this critical check.
If you cannot mark it, take a diameter measurement, go to auto parts store, purchase a decal that will be placed onto the balancer to give you these markings. (clean it well, or it will not stay in place)

This must be the correct decal/tape for the diameter of the balancer in order to be acccurate.

Now you can check your engine's TAT!


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Rick E. Portland, Oregon
2850 Bounty Sedan Flybridge model
Twin 270 HP 5.7's w/ Closed Cooling
Volvo Penta DuoProp Drives
Kohler 4 CZ Gen Set

bayliner 2556 25 Jun 2009 10:30 #12

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Hi does anyone know if you can use "dole fin's" along with trim tabs? I will get the timing gun out too and check the tat thaks for the help :)

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