F-RIB 360 letting in water

Folding Ribs are a great way of obtaining a hard hull boat but having the flexibility of a sib.
F-Ribs have the 3 or 4 section articulating hinge joint that allow the boat to fold up for ease of storage or transportation.
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Phil
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Re: F-RIB 360 letting in water

Post by Phil » 11 May 2018, 10:58

Paul wrote:A adjustable pair of grips will do the job as it's not very tight being made of plastic mate
pair-mole-grips-steel-adjustable-jaws-increased-torque-used-diy-maintenance-construction-isolated-white-35279639.jpg
Excellent, thanks Paul. I'll pick some up from B&Q or Halfords if I can't borrow a pair from the inlaws.

Cheers,

Phil
F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

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Phil
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Re: F-RIB 360 letting in water

Post by Phil » 09 Jul 2018, 13:48

Resurrecting this thread as I finally found out where water is coming in to the rear section of my F-RIB 360. It's not actually through the rear plug hole, but through the holes in the bulkhead.

I remembered reading a forum member using ear foam plugs to block the bulkhead holes in the below thread:

viewtopic.php?f=8&t=1172

Trying the same method significantly reduced the amount of water getting in from 3-4 inches over the space of a couple of hours without the plugs to about 1 inch with them. You can see from zooming in on the below pic taken out at sea that a trickle of water is still getting in through the plugs from each hole.
IMG_8923.jpg
I forgot to take the plugs out at the end of the day and could hear water swilling around (inside the rear bulkhead, I think) when I came to pack up the boat. The trapped water (about a cup full) drained out when removing the plugs.
IMG_9013.jpg
IMG_9019.jpg
Any thoughts on what’s going on here? Whilst I’m not worried about the seaworthiness of the boat (which is as excellent as always), it’s a bit annoying as if I don’t bail out the water it eventually soaks through the F-RIB bag attached to my rear seat and makes everything inside it wet.

The solution in the interim will be to try and find something like some small cork bunks to block the holes, remembering to take them out to drain the bulkhead when I beach the boat. I might drop F-RIB HQ a note on this too as the boat definitely didn’t let this much (if any) water in when I bought it.

Cheers,

Phil
F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

Shaun
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Re: F-RIB 360 letting in water

Post by Shaun » 09 Jul 2018, 14:25

Interesting, i have a 430 and it has the same holes but i dont get water in. Question is where is the water getting into the bulkhead that allows it to seep through there?

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Phil
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Re: F-RIB 360 letting in water

Post by Phil » 09 Jul 2018, 18:07

I spoke to Ricky at F-RIB HQ this afternoon who’s said he’ll have a look at it and work out what needs to be done when I can next drop the boat down to Hamble.

I think I’ll wait for a break in all this good weather first as it’s too good to miss going out on the boat in :).
F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

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Re: F-RIB 360 letting in water

Post by James » 10 Jul 2018, 22:57

Good find mate.
I've not noticed this on my F360. I'll take a look next time I go out.
James

2015 F-Rib 360 married to a 1999 fully rebuilt 15hp 2 Stroke Johnson engine and 22 litre fuel tank.
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Re: F-RIB 360 letting in water

Post by Martin » 10 Jul 2018, 23:04

This has been brought up a few times over the years, I get a very small amount of water in mine that shows more when I pack it up and the water drains out of the holes.
I think most of mine is when I get a little throttle happy and shift a drop of water aboard that then worms it’s way into the joints.
The gurnard has a family of sand hoppers in his lol..
Just keep an eye on it and have a good look at the mating surfaces next time you fold/unfold to make sure there’s no cracks anywhere 👍🏻
F-RibsAndSibs.Com.... :whistle
Because it's a big old WWworld out there :mrgreen:

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Phil
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Re: F-RIB 360 letting in water

Post by Phil » 12 Jul 2018, 14:25

Martin wrote:
10 Jul 2018, 23:04
Just keep an eye on it and have a good look at the mating surfaces next time you fold/unfold to make sure there’s no cracks anywhere 👍🏻
Curiously all this looks in order and I couldn't see anything when folding up the boat that would suggest water getting in. The boat looks pretty much as new on the hull, bar the odd small mark here and there. But - without the earplugs - it appears that a fair amount more water is getting in through the bulkhead holes than others have reported on the forum (or compared to when I bought the boat last year).

Cheers,

Phil
F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

ArcusFlyer
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Re: F-RIB 360 letting in water

Post by ArcusFlyer » 29 Aug 2018, 17:42

Hi,

Not a solution but just to let you know you're not alone my F-RIB 360 has always been the same since new 3+ years ago - 2-3 inches or more in the rear section.
Usually when I launch the boat and have forgotten to put the drain plug in :) - Come on admit it - you've all done it :)

But seriously I always have that residual amount of water in the rear even on a dry trip with the drain plug pushed in tight. To be honest I haven't worried about it.

Apols not a solution but just to let you know I have had the same thing but never bothered to investigate it because it never seems to get higher than the 2-3 inch mark.

Thanks,
Matt.

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Phil
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Re: F-RIB 360 letting in water

Post by Phil » 29 Aug 2018, 19:19

ArcusFlyer wrote:
29 Aug 2018, 17:42
Hi,

Not a solution but just to let you know you're not alone my F-RIB 360 has always been the same since new 3+ years ago - 2-3 inches or more in the rear section.
Usually when I launch the boat and have forgotten to put the drain plug in :) - Come on admit it - you've all done it :)

But seriously I always have that residual amount of water in the rear even on a dry trip with the drain plug pushed in tight. To be honest I haven't worried about it.

Apols not a solution but just to let you know I have had the same thing but never bothered to investigate it because it never seems to get higher than the 2-3 inch mark.

Thanks,
Matt.
Useful to know, thanks Matt 👍.

Mine sounds like a similar situation to yours where the water never gets higher than 2-3 inches. More of an annoyance than anything with it making stuff in the seat bag soggy.

However, I’ve found the earplugs to be a very effective solution to stopping the water almost completely. Especially the soft blue Boots own brand variety which swell up with water to provide a tight seal.

Now that the lovely UK summer seems to have completely left us, I may take the boat down to F-RIB UK to have a look at all the same as they offered.

Cheers,

Phil
F-RIB 360 with F-RIB wheels, seat cushions and bag and Scotty rod rests
15hp 1992 Johnson GT 10 2-stroke

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Re: F-RIB 360 letting in water

Post by Cliff » 29 Aug 2018, 20:23

Sounds like a design or manufacturing fault that should be covered by warranty , I'd forget the diy fixes and go for a replacement or a dealership repair. If it needed earplugs, then surely they would be factory fitted earplugs :P Good luck with it.
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