Speedometer Issue

[mojocowboy]

My 2006 200 Select has no speedo... I've checked the lower unit of debris and it's clean. I really don't know where do go next. This usually isn't an issue until skiing. Every thing else on the dash works, both the digital readout option and the traditional gauges. Any help will be appreciated. For the meantime I will be using my phones ap.

 

[JimG]

Did you stick a drill bit up in there?

Some of the newer digital speedos have an engine mounted transducer... if so check connections there. Then pull the hose loose there and blow back through it and look for bubbles. Or get underway and see if water flies out of it.

 

[dlvwill]

Agree, if the line is clear probably the transducer (881879T11) mounted next to the port exhaust riser at back of engine.

 

[CNYBoater]

My 1994 200 pickup was in the leg. Replaced the speedometer with a Faria GPS speedometer. When I pulled the no longer needed hose out of the starboard wire chase I found that it was kinked in several places, which was the cause of my not having a reading. no idea how it became kinked, since it was tied up every 24" with all the wires.

 

[mojocowboy]

Yes I've tried it all. I'm afraid its looking like a Stealership issue. I noticed that all 3 of the guages on the cluster are linked with a yellow, red and green wire. I think but no tube for pressure from the motor. I assume it may be an electeical issue.

 

[mojocowboy]

OK so got in the boat yesterday working on the speedo line. I disconnected it from lower unit and blew out lower unit. Lots of water came out and maybe a deep clog. I tried to trace it into the boat with no luck in the time I had. I did notice a lot of things I have no clue about and a few I'm happy about. Love the new convience of plugs and winterization options. Did see a big black plastic plug in bottom of boat, and one zip tied to some cables. I really need an owners book.

 

[JimG]

The plug in the bottom of the boat sounds like your depth sounder, and the one zip tied is a dummy plug to put back in the hole if you take the sounder out.

Your manual should be available on the Sea Ray web site under "Owner's Resources".

 

[Lazy Daze]

Wait... You have Smartcraft gauges, right? You said the digital readout for speed is working? You do not need to mess with the pitot or checking for any type of clog. The analog speedo gauge (and the others, as well) is redundant - it does whatever the tach (Smartcraft) gauge tells it to. The issue is either with the tach gauge (computer), speedo gauge or possibly just a loose/corroded connection between the tach and the speedo. Try disconnecting, cleaning and reconnecting. Regardless, the issue is an electronic issue at the dash - nowhere else.

 

[mojocowboy]

Wait... You have Smartcraft gauges, right? You said the digital readout for speed is working? You do not need to mess with the pitot or checking for any type of clog. The analog speedo gauge (and the others, as well) is redundant - it does whatever the tach (Smartcraft) gauge tells it to. The issue is either with the tach gauge (computer), speedo gauge or possibly just a loose/corroded connection between the tach and the speedo. Try disconnecting, cleaning and reconnecting. Regardless, the issue is an electronic issue at the dash - nowhere else.

No, the digital speed stays at 0mph, everything else works in both places.

 

[Lazy Daze]

Just to be clear... In your first post you said that the digital readout option worked. But you are saying that the digital readout works, EXCEPT for the MPH? Going on that assumption...

At this point you have disconnected the pitot tube at the QD just above the anti-ventillation plate, right? And you have good air flow? Did you run the boat afterward, or are you still hunting for the problem? If so, once you find the pitot sensor at the back of the engine, you can disconnect there and again blow through... or go for a ride and see if water squirts out. If all is good, chances are the pitot sensor is kaput - at least according to the "most likely" scenario anyways. Just for giggles, though, disconnect the plug at the sensor, clean and replug it in.

 

[mojocowboy]

Just to be clear... In your first post you said that the digital readout option worked. But you are saying that the digital readout works, EXCEPT for the MPH? Going on that assumption...

At this point you have disconnected the pitot tube at the QD just above the anti-ventillation plate, right? And you have good air flow? Did you run the boat afterward, or are you still hunting for the problem? If so, once you find the pitot sensor at the back of the engine, you can disconnect there and again blow through... or go for a ride and see if water squirts out. If all is good, chances are the pitot sensor is kaput - at least according to the "most likely" scenario anyways. Just for giggles, though, disconnect the plug at the sensor, clean and replug it in.

Everything digital works on the digital readout except the MPH. The sensor at the back of the engine is the one I'm having trouble finding.I'm not sure where that is.

 

[dlvwill]

Look at back of engine, top of the port side just behind the intake manifold. There will be a black plastic tube that runs into the brass sensor with a plug at the other end. Here is a pic of the sensor

 

[mojocowboy]

Look at back of engine, top of the port side just behind the intake manifold. There will be a black plastic tube that runs into the brass sensor with a plug at the other end. Here is a pic of the sensor

Thank you I will get on this after work today...Now If anyone knows anything about horns...I have a horn post too. lol

 

[Lazy Daze]

Horns... One of the most common things to fail . They last for a long time in a car because they are out of the elements and protected. No real way to do that in with this style horn in a boat. Check for voltage at the horn, then backtrack if needed. If you have to replace, it's super easy.

 

[mojocowboy]

Horns... One of the most common things to fail . They last for a long time in a car because they are out of the elements and protected. No real way to do that in with this style horn in a boat. Check for voltage at the horn, then backtrack if needed. If you have to replace, it's super easy.

yes we are on the 2nd one in this boat. I'm not sure what is best to buy for a replacement at this time...I thought about an equipment backup beeper/horn that's designed for the elements...as I'm sure as soon as water gets in the OEM replacement that it will die as well.

 

[mojocowboy]

Look at back of engine, top of the port side just behind the intake manifold. There will be a black plastic tube that runs into the brass sensor with a plug at the other end. Here is a pic of the sensor

Ok found it...all connections are showroom clean and I’ve blown tube from petot to lower unit clean. Is there a way Ivan check to see if petit has gone bad?

 

[CNYBoater]

Do you have a second person that can sit at the helm while you blow into the tube directly into the sensor? I’m not sure of the sensitivity of those, if you can use your lungs or a quick weak blast of canned air will show a wiggle reading at the helm? Just to test the sensor.

 

[Lazy Daze]

If you verified that the pathway from the tube at the pitot sensor (with the tube removed) to the lower unit HOLE is free and clear - and NO LEAKS in between, then chances are the sensor is bad. The only other possible explanation becomes an electrical one after the sensor... which is much further down on the "likely culrpit" scale given that the SC gauge seems to be fucntioning normal.

I've never tested a pitot sensor, but I would venture a guess that you would need to apply pressure to it while monitoring output on a DVM.

I'm not one to replace things w/o knowing for sure if they're bad, but in this case (again, verify NO LEAKS), if it was me, I would feel comfortable taking a little leap of faith and replace the sensor. Was the inside of the sensor clean (where the tube attaches)? What CNY mentioned is fine to do, as well - if for nothing else than to further verify the issue isn't with the tube.

 

[mojocowboy]

If you verified that the pathway from the tube at the pitot sensor (with the tube removed) to the lower unit HOLE is free and clear - and NO LEAKS in between, then chances are the sensor is bad. The only other possible explanation becomes an electrical one after the sensor... which is much further down on the "likely culrpit" scale given that the SC gauge seems to be fucntioning normal.

I've never tested a pitot sensor, but I would venture a guess that you would need to apply pressure to it while monitoring output on a DVM.

I'm not one to replace things w/o knowing for sure if they're bad, but in this case (again, verify NO LEAKS), if it was me, I would feel comfortable taking a little leap of faith and replace the sensor. Was the inside of the sensor clean (where the tube attaches)? What CNY mentioned is fine to do, as well - if for nothing else than to further verify the issue isn't with the tube.

Yes we blew into it with an air compressor on about 15 lbs of pressure and nothing. I also tried more and still nothing. I'll be trying to find the best deal on a new one.

 

[mojocowboy]

Look at back of engine, top of the port side just behind the intake manifold. There will be a black plastic tube that runs into the brass sensor with a plug at the other end. Here is a pic of the sensor

Is there an official name for it...I'm looking to buy a replacement and I can't find it listed anywhere. under sea ray pitot sensor