Need help locating and replacing fuel lines in 308QV

1859 Views 7 Replies 0 Participants Last post by David Feinberg, Nov 10, 2003

Discussion Starter · Nov 9, 2003

Hello everyone.

I am planni

Hello everyone.

I am planning on replacing all of the fuel lines, hoses, tubes, pipes, etc in my '85 308QV this winter. The hoses were suppose to have been replaced at the local Ferrari dealer several years ago, but it appears that they billed for work they never performed. As such, I want to replace the hoses for safety reasons. I have contacted Ferrari UK as to which hoses I should replace, but they only indicated two hoses (see attached photo). I know that there have to be many more than just two fuel lines that need to be replaced. Does anyone have a detailed list or diagram that lists all of the hoses, tubes, pipes, etc that are in the fuel system and that should be replaced? I have the parts book for my car, but it is confusing as to which lines are in the system.

Also, the book mentions hoses, pipes, and tubes for what appear to be hoses for the fuel system. What is the difference between these three items? Case in point, the big braided line (hose for lack of a better term) that runs from the left gas tank to the right gas tank is referred as to a pipe in the parts book. Is this item really a metal pipe with braiding on the outside, or just a heavy duty braided rubber hose?

Finally, the two hoses that are labeled in red in the attached diagram appear to be metal (stainless steel???) braided hoses on my car. Are these the original hoses, or have they been replaced? (i.e. are they suppose to be rubber) They have yellow paint on the ends which many of my clamps have too. Even though the dealer was suppose to have replaced the hoses in the fuel system (my car had major fuel contamination issues since the previous owner stored the car for 13 years. The entire fuel system was suppose to have been replaced due to the gas turning into carmel), I do not trust that the hoses really were replaced. Is there anyway to verify that the hoses on my car are original or not? Also, are all hoses and clamps with yellow paint original from the factory?

Sorry for so many questions, but I feel that replacing the fuel lines is very important, and often overlooked by owners.

Thanks.
Ken

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Discussion Starter · #2 · Nov 9, 2003

Ken,
Regardless of Ferrari mo

Ken,
Regardless of Ferrari model, the most important hoses that need to be replaced...and possibly overlooked by some owners, are the hoses which are not shown in your diaghram.

Here's a list of "must replace" hoses, to be done every 5-10 years....

1-Fuel filler to RH tank inlet
2-RH tank to 1st alu cross-over tube hose
3-1st alu cross over tube hose to LH cross-over tube
4-LH cross-over tube hose to LH fuel tank
5-Rubber feed hose to fuel pump

The two hose you refer to in the diagram are stainless steel braid over either synthetic rubber or teflon tubing. As these are high pressure hoses, it wouldn't be a bad idea to change these, as well.

Yes...the factory does put a yellow dab of paint on hose, clamps, connectors, as do some shops as a reminder that the fitting has been properly tightened.

Pull up the Ferrari UK picture for the fuel tanks and fuel pump...You'll see the hoses I'm refering to.

Regards,
David

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Discussion Starter · #3 · Nov 9, 2003

Thanks a million David. This

Thanks a million David. This was the info I was looking for. Do you happen to know whether or not the items in the diagrams labeled as "pipes" need to be replaced too? The parts book, and UK Ferrari, refer to the big hose leading from tank to tank as a pipe. This "pipe" is braided too. Thanks.

Ken

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Discussion Starter · #4 · Nov 9, 2003

Ken,

Seems it comes down to

Ken,

Seems it comes down to translation issues...Pipes could be rubber hoses, as we call them. As I just did this (hose replacment) on my BB and the tank cross-over setup is near identical to the 308/328 series cars, the cross-over "pipe"(HA!) hoses all have the same PN...and you need three of them. They are about 4" long by 1.5" i.d. approximately...and a bit pricey, I thought.

I do believe that Ferrari does refer to "rubber hoses" as "pipes"....

Hopefully, this will add a bit of claity to your project needs.

Regards,
David

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Discussion Starter · #5 · Nov 9, 2003

Hi Ken,

I agree with David,

Hi Ken,

I agree with David, that the most important hoses that need to be addressed are the "rubber" hoses. Most of these are on the bottom of the car. All of the plastic fuel lines on the top of the engine are considered to be of lifetime quality, meaning they don't need replacing unless an individual hose develops a problem, then only the bad hose would be replaced. The rubber hoses on the bottom are another matter, as they suffer from rot and in your situation should all be replaced during your winter maintanance/upgrade project. On the vapor recovery system the hoses are the standard cloth covered rubber in various sizes and can be purchashed in bulk to meet your needs.

Regards, JRV

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Discussion Starter · #6 · Nov 9, 2003

I didn't see a fuel filter

I didn't see a fuel filter listed anywhere (maybe I missed it) but it would be a good time to install one of those also.

Excellent procedural how to by Carl Rose: http://www.ferrari-talk.com/discus/messages/30/287.html?1055301917

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Discussion Starter · #7 · Nov 10, 2003

Dave--I see two 1.5" hoses

Dave--I see two 1.5" hoses --one one each side of the car near the bottom of the fuel tanks ( '85 308)--where is the third one you refer to?

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Discussion Starter · #8 · Nov 10, 2003

Bill,

I just checked my 308

Bill,

I just checked my 308 parts book, to verify my memory of the set-up. It appears that just the BBs use the three hoses I previously described, as the alu cross-over tube is a two piece unit on a BB, versus a one piece unit on the 308 series cars...so, only two of the larger hoses are required. Thanks for asking...

Regards,
David

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