Fuel tank leak

KINGFISHER 6 said:
I'd be surprised if it was the tank ... the boat can't be very old. More likely a connection somewhere.
Click to expand...
That is what I am hoping. But the amount of fuel coming out is worrying, it’s slow but steady. With the boat out the water, with the fuel taps off, where can it come from? Is there a drain plug in the tank?
 
Can you find the tank manufacturer plate? They”ll probably have tech drawings so you know exactly where to look to rule out fitting points.

defo neat diesel? Not water / rain water contaminated with diesel (I’m ever the optimist)
 
Mr Googler said:
Can you find the tank manufacturer plate? They”ll probably have tech drawings so you know exactly where to look to rule out fitting points.

defo neat diesel? Not water / rain water contaminated with diesel (I’m ever the optimist)
Click to expand...
If I still had my Volvo I would have recycled it. But of course I don’t put anything in my boat tank that I can’t swear by so I just dispose of it (responsibly).
The tank looks a custom fit. It has a vee shaped bottom that perfectly fits the boat. I’ll look for a mark.
There is a (viewing?) hole in a stringer that the tank rests on. I noticed that yesterday for the first time. I want to put my endoscope and have a look around, unfortunately my back won’t allow me to get in that position for at least till next week (when troubles come, they come not single spies but in battalions)
 
I guess no sight tube either on the side of the tank Bouba?
one or two vents?
can you see where the vent exits the tank (granted would be plain silly not to have the vents at the top but you never know...)

if it's indeed tank leak, I'd put my money on a screw tip on the other side of the bulkhead fouling and eventually holing the tank.
 
Just a few random thoughts. Does the tank have a drain point lower than the supply take off somewhere? Also, I'd be surprised if you could see anything with an endoscope inside the tank - the hole would have to be a gusher to see daylight. Would be useful in seeing the drip out though (I had a similar experience at home last winter - a wet patch in the ceiling below 2 bathrooms. I drilled some holes and stuck an endoscope through and finally found the drip which lead me to find the leak- a pinhole leak in some copper pipe. I used this https://www.amazon.co.uk/gp/product/B07ZH9P8QH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
 
markc said:
Just a few random thoughts. Does the tank have a drain point lower than the supply take off somewhere? Also, I'd be surprised if you could see anything with an endoscope inside the tank - the hole would have to be a gusher to see daylight. Would be useful in seeing the drip out though (I had a similar experience at home last winter - a wet patch in the ceiling below 2 bathrooms. I drilled some holes and stuck an endoscope through and finally found the drip which lead me to find the leak- a pinhole leak in some copper pipe. I used this https://www.amazon.co.uk/gp/product/B07ZH9P8QH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Click to expand...
Yes I have one of those and another with a bendy wire. I thought if I could get some spotlights I might just see a pin hole but I also wondered about baffles in the tank stopping the endoscope having a good look around.
 
vas said:
I guess no sight tube either on the side of the tank Bouba?
one or two vents?
can you see where the vent exits the tank (granted would be plain silly not to have the vents at the top but you never know...)

if it's indeed tank leak, I'd put my money on a screw tip on the other side of the bulkhead fouling and eventually holing the tank.
Click to expand...

I can’t see any outlets/inlets from the tank that aren’t on the top. Your theory sounds good, the tank isn’t old so shouldn’t have corroded. I’ve never had water in the fuel and I’ve always used treatment. But of course I don’t know how low the pick up pipe goes.
No sight tube
 
Alright guys you now have very little time left to solve this problem !
I’m going to the boat tomorrow. If I don’t at least find the source of the leak, the wife has threatened to go talk to Beneteau?
 
Bouba said:
Alright guys you now have very little time left to solve this problem !
I’m going to the boat tomorrow. If I don’t at least find the source of the leak, the wife has threatened to go talk to Beneteau?
Click to expand...

A real man knows when to kick back, relax and let the wife go to battle. Chin chin. We're open for cocktails Friday noon.
 
Bouba said:
Alright guys you now have very little time left to solve this problem !
I’m going to the boat tomorrow. If I don’t at least find the source of the leak, the wife has threatened to go talk to Beneteau?
Click to expand...
Have you got a diesel heater or water heater.
 
You must log in or register to reply here.

Share this page

Top