Lund Gas Vent

imasking

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Joined
Oct 12, 2018
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I have a 2012 Lund Tyee. It has a plastic Attwood gas vent cover on the outside of the hull. I managed to shear it off flush with the hull leaving the vent hole open and exposed to spray. I ordered a replacement cap that is threaded and designed to be threaded into the fixture inside the hull. I was able to screw out the remaining part of the broken piece. I assumed the fixture inside the hull was secured in place and all I had to thread in the new part. WRONG!!! Turns out the inside fixture is not secured. It was just sitting off center of the hole in the hull and free. Apparently, it was just supported by vent hose. I could still see it but there was no way I could thread in the new part. I could not reach the fixture from the inside of the boat due to padded upholstery. Finally, using a 1/4 inch copper pipe with a very small tooth I bent in the end, I was able snag the threads of the inside fixture and pull it towards the hole, push the new part down the pipe and, with much time, and many failed attempts, I was able to thread the new part into the inside fixture and pull out the copper pipe. My question to this forum - If I were to break this new one off, does anybody have a smarter approach to replacing the vent cover? I thought about snagging the inside part, coating the face with epoxy, and pulling up against the inside wall to stick it place, Or using one of those Clam Shell covers to go over the exposed hole. Your thoughts please.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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Jul 23, 2011
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49,593
vent fittings are like a bolt. shoved in a hole from the outside, and you tighten the nut on the backside. then connect the bonding wire, and then the vent hose.

buy a new stainless (plastic only lasts about 5 years) fuel vent. remove all bits of the old one

install the new one

and yes, the vent hose is supposed to have the loop in it going upward to prevent water from getting to the tank. do not cut the hose short.

if you have further questions, feel free to read the appropriate CFR https://www.govinfo.gov/content/pkg/CFR-2010-title33-vol2/pdf/CFR-2010-title33-vol2-sec183-558.pdf
 

imasking

Recruit
Joined
Oct 12, 2018
Messages
3
vent fittings are like a bolt. shoved in a hole from the outside, and you tighten the nut on the backside. then connect the bonding wire, and then the vent hose.

buy a new stainless (plastic only lasts about 5 years) fuel vent. remove all bits of the old one

install the new one

and yes, the vent hose is supposed to have the loop in it going upward to prevent water from getting to the tank. do not cut the hose short.

if you have further questions, feel free to read the appropriate CFR https://www.govinfo.gov/content/pkg/CFR-2010-title33-vol2/pdf/CFR-2010-title33-vol2-sec183-558.pdf
Thank you for your response. Problem is there seems to be no access to the backside of the hull because the boat is upholstered and there is no access port in that area. I need to investigate further. Surely there has to be a way to access that fitting.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
49,593
Removing the upholstery would be the first step
 

airshot

Vice Admiral
Joined
Jul 22, 2008
Messages
5,093
Yep, you have some taking apart to get er done!! Not a fun job, but being a fuel vent, you really want to fix it right !! I have to say this, never saw a plastic vent before, all mine have been metal...cheap ole diecast, but at least metal !!
 
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