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Contender Question

Old 12-30-2008, 08:13 PM
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Default Contender Question

My buddy is getting ready to buy a 1998 Contender 27 open. There is a few minor things wrong with it like the speedometer and fuel gauge not working. I'm not sure if it has digital gauges but the dealership said they power up but do not register. The boat has 4 fuel tanks but does it have only one sending unit. Do you have to fill all the tanks seperately or are they connected together somehow? The speedometer is no big deal but I would like to fix it. Do ox66 engines have the hole in the front of the lower unit for the speed pickup and if so would it be on both motors or just one? Thanks for any help. We're supposed to give it a test ride Thursday and the sooner I get everything fixed the sooner we go fishing.
Old 12-30-2008, 08:23 PM
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Default RE: Contender Question

4 tanks in a 27? Most (all?) are rigged as totally seperate tanks, seperate filler, seperate fuel level sender. Choose what tank to run off of in bilge with valves.

Yes they have pitot tubes in lower unit. Pretty accurate when working too. Speedo will be hooked to only one of the motors. Could be plugged hole, broken loose pressure tube / hose or just broken guage.
Old 12-30-2008, 08:30 PM
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Default Re: Contender Question

I haven't checked it out yet but the broker told us it has 4 tanks, 100 gal in the middle, 50 on each side and a 40 in the front. If there is 4 separate senders then it will be real easy to determine if it's a gauge problem or not. When you switch tanks how does it let the gauge know what tank to read from?
Old 12-31-2008, 04:06 AM
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Default Re: Contender Question

My 31 has 3 tanks, 3 fillers & 3 gauges. Main tank off of the Yamaha Digital gauge and 2 other analog... sounds like an odd set up if all 4 run off one gauge.
Old 12-31-2008, 06:46 AM
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Default Re: Contender Question

A 27 with 4 tanks will have 4 seperate senders with 3 guages. There will be an unmarked toggle switch on the console near the guages to switch from the front sending unit to one of the side tanks. The digital guage will read the main tank. Most likely the problem is the sending unit has gone bad in the main tank and the speed pito tube on the motor that the guage turns on with is kinked or clogged. It is very easy to kink this tube when replacing a lower unit after a service.

All of them fill seperatly and there will be the appropriate valves in the bilge to switch from tank to tank.
Old 01-02-2009, 07:50 PM
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Default Re: Contender Question

I've got the fuel gauge deal figured out. The digital gauge isn't hooked up because they probably didn't know how with there being 4 tanks. There is 1 regular fuel gauge with 2 switches under it, 1 labeled front/rear and the other labeled left side/right side. You switch 1 of them on and the gauge works. I'll probably try to hook the digital gauge to the main tank. I found the 4 fuel valves in the floor. They are plumbed kind of funny like a bottom left, top left, top right, bottom right order with no labelling of any kind. Can someone tell me which valve works which tank?
Old 01-02-2009, 08:00 PM
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Default Re: Contender Question

Fuel gages are easy to install and wire. The sending units usually have a float that sends a signal to the gage through a single wire. So, each tank should have a sending unit and each tank should also have a gage. Yeah, you can use switch, but buying gages is a lot cheaper than getting stuck offshore with no fuel, because a tank with a dead sending unit read full when it was empty. I have a gage for each tank and if he buys the boat, he should allow a couple hundred bucks for gages and sending units. The Yamaha gage that is a part of the fuel management system is a bar gage. That's OK, if you like 'em. Give me a needle and something that says "Full" and "Empty". I want to see the needles move as the boat bounces.

I may be old fashioned, but I consider the fuel gages first priority, water pressure gages (one for each engine) second priority and the rest of the stuff. the than the compass to be optional.
Old 01-03-2009, 02:25 PM
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Default Re: Contender Question

I would reccoment a fuel amnagement system (flowscan). I love it. I do sill have fuel guages as a cheeck and balance, but fuel management is the way to go.
Old 01-03-2009, 03:27 PM
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Default Re: Contender Question

The boat already has the fuel management system. The last owner said he used that for his fuel burn used so he didn't worry about the fuel gauge not working.
Old 02-21-2009, 04:59 PM
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Default Re: Contender Question

Okay guys, I have just about everything on my buddy's boat ready to go but now I have to figure out how the fuel valves work with it having 4 tanks. I don't want to start unhooking and tracing fuel lines to see where they go. The bilge has 4 valves in it, 2 upper and 2 lower. The 2 lower are just on/off valves. The 2 upper have 3 inputs and 1 output. One of the fuel lines goes into a T fitting then goes to the 2 upper valves. Would that be from the main tank or the reserve? Nothing is marked so I have to figure it out on my on. I now I could just fill every tank, switch both valves one direction and then use the process of elimination after a few trips but I would rather now exactly what I'm dealing with to start with. Any help would be great guys.
Old 02-21-2009, 08:24 PM
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Default Re: Contender Question

I believe on my boat the two top valves control the center tank, and the bottom valves control the saddle tanks, my center tank has two pick-up tubes, one for each engine. My saddle tanks have 2 valves that are are colored labeled red and green. If your running of your center tank than your saddles should be off, and vise versa. If you have a fourth tank it would be an optional auxillary tank, not sure where the valves are for that tank, maybe your auxillary tank is tied in with your center tank. This model boat carries total of 210 gal, 106 on the center and 52 on each saddle. If yours has an auxillary tank, then it holds an extra 40. I would check with contender on how to operate this tank, and see if the boat really has one. Bill@contender.com, he might be able to answer questions. good luck.
Old 02-21-2009, 08:52 PM
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Default Re: Contender Question

Kerno,
Water Pressure gauges! Thank you sir!
Old 02-22-2009, 07:37 AM
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Default Re: Contender Question

Lunkerlure - 2/21/2009 7:59 PM Okay guys, I have just about everything on my buddy's boat ready to go but now I have to figure out how the fuel valves work with it having 4 tanks. I don't want to start unhooking and tracing fuel lines to see where they go. The bilge has 4 valves in it, 2 upper and 2 lower. The 2 lower are just on/off valves. The 2 upper have 3 inputs and 1 output. One of the fuel lines goes into a T fitting then goes to the 2 upper valves. Would that be from the main tank or the reserve? Nothing is marked so I have to figure it out on my on. I now I could just fill every tank, switch both valves one direction and then use the process of elimination after a few trips but I would rather now exactly what I'm dealing with to start with. Any help would be great guys.
I have 4 tanks with two of these valve setups, one port and one stbd. The top valve goes to the saddle tank for that side. The center valve is for the center (main) tank and the bottom one is for the aux tank. Both engines can run off the main and aux tanks but only the port will run off the port saddle, and stbd off the stbd saddle. Not sure what the other 'bottom' valves that you are referring to are.

The other valves might be to allow you to run either engine off the saddle tanks but that is just a guess.


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