The Fuel Tank Cap from Hell
- Thread starter BrianG
- Start date
The friendliest place on the web for anyone who enjoys boating.
If you have answers, please help by responding to the unanswered posts.
If you have answers, please help by responding to the unanswered posts.
O C Diver
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There is a store in Fort Pierce called Marine Liquidators that would likely have it as they buy all sorts of closeouts. Unfortunately this isn't a place you can buy on line from. You would need to go in and match it. Don't know if there is an equivalent store or boat salvage store in Santa Barbara.
I would probably be inclined to buy a whole new fill pipe assembly. It's certainly more work, but you can buy a better quality to avoid a repeat performance.
Ted
I would probably be inclined to buy a whole new fill pipe assembly. It's certainly more work, but you can buy a better quality to avoid a repeat performance.
Ted
FF
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IF you replace the entire deck fitting slipping a 1/2 or 3/4 piece of GRP or starboard under the fitting will keep the sealing O ring from being tested till there is a lot of water on deck.
Pete Meisinger
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If you are able to get the bottom piece out, try a liberal "gob" of Marine Tek to put it back together.
pete
pete
PMF1984
Guru
High Wire
Guru
If you have access to the back side, remove and replace the whole fitting with new.
If not, drill and tap two 1/4-20 machine screws so you can torque on what is left then clean up the threads and take cap to a machine shop. They could be metric , BSP, or something else.
If not, drill and tap two 1/4-20 machine screws so you can torque on what is left then clean up the threads and take cap to a machine shop. They could be metric , BSP, or something else.
OP
OP
BrianG
Senior Member
Sanded and tried some JB Weld Metal. Hope it holds
OP
OP
BrianG
Senior Member
Thank you but mine is slightly larger
OP
OP
BrianG
Senior Member
If the expoxy doesn't hold, that'll be my next move. thanks!
OldDan1943
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Take the male part to a marine parts store, find the female deck fitting that fits.
Buy the proper new male unit, throw the old one away.
While you are at it, buy more male caps and extra O'rings too.
Buy the proper new male unit, throw the old one away.
While you are at it, buy more male caps and extra O'rings too.
OP
OP
BrianG
Senior Member
3 different stores no luck. also, and all o rings too thick. btw a perko o-ring is $12 at westmarine.
markpierce
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Undo four screws then remove the fitting, then replace it with a standard one?
OP
OP
BrianG
Senior Member
That's last resort. But the entire assembly isn't cheap and access is a beyotch.
BruceK
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I`d have high hopes for the JB Weld. As to O rings, I bought on Ebay a box of about 800, a range of sizes,allegedly fuel solvent resistant, imported from "that" country, for < $20 delivered.
OldDan1943
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I would be very hesitant to install one new deck fitting. Change one, you will have to carry parts for two type.
And spending money on trying to make it work as is and going from store to store and the best you can possibly end up with is still the old, discontinued, unit is somehow preferable? I'm having a hard time seeing it. Do it the right way and only have to deal with it this one time.
GoneFarrell
Guru
Brian,
That looks like the fill fittings on my BC-built Farrell trawler (30 years old.)
I have been looking for spare threaded caps since I bought the boat and have struck out on that treasure hunt in OR, WA and BC. Not helping you much, but its not just you.
They are a fine thread with a thinner section O-ring than current Perko parts. I might try digging around in Dagmars north of Everett this month. Last resort is to turn some from bar stock at a pal's machine shop.
Carry backup rubber stopper if the worst happens.
That looks like the fill fittings on my BC-built Farrell trawler (30 years old.)
I have been looking for spare threaded caps since I bought the boat and have struck out on that treasure hunt in OR, WA and BC. Not helping you much, but its not just you.
They are a fine thread with a thinner section O-ring than current Perko parts. I might try digging around in Dagmars north of Everett this month. Last resort is to turn some from bar stock at a pal's machine shop.
Carry backup rubber stopper if the worst happens.
Last edited:
RT Firefly
Enigma
Greetings,
Mr. BG. Why not screw the pieces together? Drill and tap the base and goop the space between the pieces with a good gasket sealant before tightening down. WALLA. A one piece cap again!
Mr. BG. Why not screw the pieces together? Drill and tap the base and goop the space between the pieces with a good gasket sealant before tightening down. WALLA. A one piece cap again!
OP
OP
BrianG
Senior Member
That's what I'll do if the JB weld doesn't work. Changing the assembly would require replacing both fills, miserable hours trying to access and remove the old ones and most projects on boats expand. For example, maybe the new fittings don't have the same footprint as the old -- it'd be a miracle if they did. So now have to cut the deck, Epoxy seal the new hole, break out the Sikaflex or butyl. These things can go sideways.
