Author Topic: Troubleshooting 997cSI, no dpeth on plane  (Read 125 times)

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Offline FishPig

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Troubleshooting 997cSI, no dpeth on plane
« on: June 09, 2017, 12:05:54 PM »
Have an older 997cSI with Y cable and 2 transducers - the SI 'ducer mounted on the transom and a round one epoxied into the hull. I no longer get any readings while on plane, and it takes a couple minutes or so for it to start reading again once off plane. Everything else works perfectly. Cables appear to be properly connected at the Y and the unit (if they weren't I suppose it wouldn't even work at slow speed). The round' 'ducer was already replaced once before. I have to literally tear the back end of the boat apart to get at it, so I tried to be VERY careful and epoxy it in well the last time. But my guess is that it must have still come loose so only the SI 'ducer is working.

Best way to trouble shoot? Something to try without tearing the boat apart?


Offline rnvinc

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Re: Troubleshooting 997cSI, no dpeth on plane
« Reply #1 on: June 09, 2017, 07:57:01 PM »
Add water in the bilge enough to cover the xducer and test - this may determine if the epoxy has failed by filling air voids between the xducer housing and the epoxy  ...

Did the bilge xducer work correctly before now??

Rickie
« Last Edit: June 09, 2017, 07:58:28 PM by rnvinc »

Offline FishPig

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Re: Troubleshooting 997cSI, no dpeth on plane
« Reply #2 on: June 21, 2017, 04:45:07 AM »
Been on vacation, just getting back to this.....

So do I do this while the boat is in the water I presume? I can't think of how I would "test" it otherwise unless I can drive the boat on plane. How would I get water into the boat - bring a handheld pump or bucket?

Offline rnvinc

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Re: Troubleshooting 997cSI, no dpeth on plane
« Reply #3 on: June 21, 2017, 06:01:42 PM »
Been on vacation, just getting back to this.....

So do I do this while the boat is in the water I presume? I can't think of how I would "test" it otherwise unless I can drive the boat on plane. How would I get water into the boat - bring a handheld pump or bucket?

Yes test on the water and bring a bucket to get water into the bilge  ...

Rickie


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