rickmarlin62 Posted September 18, 2016 Share Posted September 18, 2016 my mate has a stessl striker 5.5 and has had two lots of holes in the bottom of the hull...there are no sinkers or hooks lodged anywhere ..he has tested the wiring and cant find anything leaking to the hull..we are assuming the earth is coming from the engine..does anybody have any experience with this problem ???? rick Link to comment Share on other sites More sharing options...
JonD Posted September 18, 2016 Share Posted September 18, 2016 My mate had a brooker virtually dissolve after two years, turned out to be grinder filings under the floor. Jon Link to comment Share on other sites More sharing options...
dunc333 Posted September 20, 2016 Share Posted September 20, 2016 does he have a battery isolation switch ? Link to comment Share on other sites More sharing options...
rickmarlin62 Posted September 20, 2016 Author Share Posted September 20, 2016 yep...the latest two holes have a black ring round them.....we are thinkin the engine is earthing to hull and creating these holes in the forward section of the hull basically where it touches the water when planning...any ideas anyone ??? Link to comment Share on other sites More sharing options...
DrownNprawns Posted September 20, 2016 Share Posted September 20, 2016 (edited) Do the nav lights have good earth Edited September 20, 2016 by DavidA Link to comment Share on other sites More sharing options...
Jewdreamer Posted September 20, 2016 Share Posted September 20, 2016 Run a positive and negative wires to everything, Don;t rely on the hull for any earth returns Your engine anodes should then also help protect the hull Chris Link to comment Share on other sites More sharing options...
tackleberry Posted September 20, 2016 Share Posted September 20, 2016 this thread got me thinking so i grabbed my multi meter and put + lead to bat + and the - to the hull and got 14.7v motor running while i was flushing so it must be earthing through the donk is this normal or do i have a problem . Link to comment Share on other sites More sharing options...
takethebait Posted October 2, 2016 Share Posted October 2, 2016 Hi Tackleberry. That shouldn't be a problem. Your hull should be grounded, but that doesn't mean that current returning to the battery is going via the hull. There should be a return wire to do that. Problems occur when there isn't a return wire, it's broken or has a poor connection. What you measured was the potential between the positive and the hull in a path that doesn't usually occur. But I'm just a hack, so check with your mechanic next service. Cheers. Link to comment Share on other sites More sharing options...
tackleberry Posted October 2, 2016 Share Posted October 2, 2016 yeah i did some more checking and its ok i did all my wiring the right way with earth wire return . Link to comment Share on other sites More sharing options...
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