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Fairing block help

Old 05-10-2018, 10:54 AM
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Default Fairing block help




Noticed a crack in my fairing block (aft section), not complete. Not sure how it happens? My local electronics guy says “it has to be replaced and will cost at least 1000”. Was hoping for a more macguyver approach, 5200? Any advice
Old 05-10-2018, 11:58 AM
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Is it on the front..or rear?
Old 05-10-2018, 12:27 PM
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looks like the back of it.. I would replace

Buy an Airmar in line splice and new B275 fairing block from Gil @ Semperfi

Cut cable somewhere like 30 inches from the transducer. Rip it out cut new fairing block, pop it back it and then just match up the colors in the cable red to red black to black etc.
Old 05-10-2018, 01:43 PM
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it is the back, already have a r509 to furuno fcv295, this is a b260 (backup) I never really use it. its hooked to a bsm1 so I cant do chirp transducer. what is the down side of repairing it? cant they just replace fairing block or they have to scrap the entire transducer?
Old 05-10-2018, 03:39 PM
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Fill if full of JB Weld...clamp it with a C-Clamp till it closes back tight.....till it sets...it bet it will hold
It's a try worth, but i fear rhat nothing sticks well on this kind of urethane.
You may drill two or three small, countersunk holes to add a few wood screws to hold the two parts together
The third redneck solution would be to use a dremel to cut off the broken part and grind/sand it to a new, similar plane wing shape.

Is the empty space visible the place where the thru-hull bolt went? If so, where is the bolt now?
If the bold snapped and one part is sticking inside the hull you should pull that bolt and close the hole professionally.

cant they just replace fairing block or they have to scrap the entire transducer?
Depends how they installed the transducer and fairing block, if they used abundant 5200 then damage to get the transducer out of the hull and then out of the fairing block is to expect.
The cost for doing this job slowly to save the transducer is probably more expensive than installing a new transducer and fairing block
Old 05-10-2018, 04:59 PM
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I recently removed the same transducer with fairing; the fairing is lost but the transducer went out easily except for the bolt that had to be cut.
Old 04-30-2020, 02:03 PM
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What did you end up doing? I've got a similar crack, mine doesn't look quite as bad. I was thinking of injecting some epoxy in the crack.

Also, should the gap between the transducer and fairing block be filled to reduce turbulence?



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