Change Fuel Line

C

ChrisHunter

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Feb 25, 2014
63
Hunter Hunter 30 Lake Lanier
As part of my yearly maintenance, I do change my oil/filter every year on my 92 Hunter 30. Every couple years I change the impeller and fuel filters. Not much to it.

My neighbor was replacing his fuel line and I began to think how long they last, before a new hose is needed. Any thoughts? I probably put 150 hours on the engine each year.

Thanks
 
jviss

jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
I think you can inspect them - look for cracks, squeeze them to see if they are still somewhat elastic and not hardened, etc.
 
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Ralph Johnstone

Ralph Johnstone

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Jan 4, 2006
7,069
Hunter 310 West Vancouver, B.C.
I just completed replacing all hoses on the Yanmar 2GM20F within the engine compartment. They were 24 years old. The interior hoses were starting to get a little harder than the hose material on the outside due to the heat. As far as the two fuel lines, I ran the new material to the exterior lift pump and then connected to the old hoses. I did a joint in the return line beside the pump so that it wouldn't be hidden away (with possibly a slow leak) . The old hoses were identical to the new material in every way as they were always in the cold bilge.

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Dalliance

Dalliance

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Oct 6, 2007
1,110
Hunter H30 1982 Chicago IL
Engine hours are not necessarily the issue. It’s time. Rubber and vinyl both deteriorate and suffer dry rot with age. If you see cracks at the outside of bends or the hose feels stiff, it’s definitely time to replace it. Your boat is 31 years old, if the fuel hoses are original, proactive replacement now would be prudent.
 
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Tally Ho

Tally Ho

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Jan 7, 2011
5,321
Oday 322 East Chicago, IN
ChrisHunter said:
As part of my yearly maintenance, I do change my oil/filter every year on my 92 Hunter 30. Every couple years I change the impeller and fuel filters. Not much to it.

My neighbor was replacing his fuel line and I began to think how long they last, before a new hose is needed. Any thoughts? I probably put 150 hours on the engine each year.

Thanks
Click to expand
Good question, but I don’t think engine hours has much to do with it…maybe some, but the fuel is in the lines all the time, which is probably what causes the hose to break down.

I think mine are original….1988:yikes:

Greg
 
TimFromLI

TimFromLI

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Jan 7, 2014
437
Beneteau 45F5 51551 Port Jefferson
Consider replacing them with metal where you can. I am in the process of replacing all of the coolant lines that look original. I'm too embarrassed to post pictures at least until I can show the after pics after this weekend.
 
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Dalliance

Dalliance

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Oct 6, 2007
1,110
Hunter H30 1982 Chicago IL
Tally Ho said:
Good question, but I don’t think engine hours has much to do with it…maybe some, but the fuel is in the lines all the time, which is probably what causes the hose to break down.

I think mine are original….1988:yikes:

Greg
Click to expand
I don’t know how much affect fuel has on fuel hoses over time. It probably has some, but age takes a big toll. Rubber and vinyl both dry out, become stiff with age and start to crack over time. Cracks will show up first on the outside of bends in the hose. Proactively replacing old fuel hoses is cheap insurance IMO.
 
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Tally Ho

Tally Ho

.
Jan 7, 2011
5,321
Oday 322 East Chicago, IN
Dalliance said:
I don’t know how much affect fuel has on fuel hoses over time. It probably has some, but age takes a big toll. Rubber and vinyl both dry out, become stiff with age and start to crack over time. Cracks will show up first on the outside of bends in the hose. Proactively replacing old fuel hoses is cheap insurance IMO.
Click to expand
That makes sense… I guess I was thinking time…with fuel in them…vs engine hours.

Greg
 
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