Intake Plenum Fuel Line

Maintenance advice to keep your Spider in shape.
davery
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Your car is a: 1985 Spider
Location: Ohio

Intake Plenum Fuel Line

Postby davery » Tue Feb 21, 2017 8:34 pm

I would like to replace the fuel hose going into the intake plenum. How does this hose attach to the fuel rail? It seems to have some sort of collar at the this end.
Don Avery
Dayton, OH/Sarasota,FL
1985 Pininfarina
2011 Eos
2012 Mercedes E550 Cabriolet

klweimer
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Joined: Tue Mar 27, 2012 7:45 am
Your car is a: 1982 Spider 2000
Location: Arvada, Colorado

Re: Intake Plenum Fuel Line

Postby klweimer » Tue Feb 21, 2017 9:20 pm

The fuel lines are pushed on over barbed fittings that end with a collar that holds the end of the hose to keep it from expanding under pressure. You can carefully cut the old hose off the fitting (because you will never pull it off). What you don't want to do is cut nicks into the barbed fitting when you cut off the hose. Possible leak path later. I replaced the hoses and put hose clamps on everything, as I don't know if the new hose is the same diameter as the original stuff.
Kirk

davery
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Joined: Sun Apr 15, 2012 8:51 pm
Your car is a: 1985 Spider
Location: Ohio

Re: Intake Plenum Fuel Line

Postby davery » Tue Feb 21, 2017 9:45 pm

klweimer wrote:The fuel lines are pushed on over barbed fittings that end with a collar that holds the end of the hose to keep it from expanding under pressure. You can carefully cut the old hose off the fitting (because you will never pull it off). What you don't want to do is cut nicks into the barbed fitting when you cut off the hose. Possible leak path later. I replaced the hoses and put hose clamps on everything, as I don't know if the new hose is the same diameter as the original stuff.
Kirk

Thanks for the info. You happen to have a pic of the collar with out a hose would you? I'm having a hard time visualizing what you are saying.
Don Avery
Dayton, OH/Sarasota,FL
1985 Pininfarina
2011 Eos
2012 Mercedes E550 Cabriolet

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lglade
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Your car is a: 1984 Pininfarina
Location: Mukilteo, WA

Re: Intake Plenum Fuel Line

Postby lglade » Tue Feb 21, 2017 10:46 pm

Here's a picture of the collar:
http://www.midwest-bayless.com/p-8169-fuel-injection-hose-collar-fiat-124-x19-131-strada-lancia-beta-oe-renewed.aspx

and here's a kit to replace all of the high pressure FI hoses:
http://www.midwest-bayless.com/p-8163-fuel-injection-fuel-hose-kit-fiat-124-spider-131brava-1980-on.aspx

If you're going to replace one of the high pressure hoses, then you may as well replace them all. The low pressure hoses will need replacement too, so plan on doing them after you get the high pressure ones replaced and your knuckles quit bleeding.
Lloyd Glade- Mukilteo, WA
1984 Pininfarina Spider Azzurra
1962 Fiat 500D - wife's car
2015 Subaru Outback
2017 Ford Focus RS

klweimer
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Your car is a: 1982 Spider 2000
Location: Arvada, Colorado

Re: Intake Plenum Fuel Line

Postby klweimer » Wed Feb 22, 2017 8:18 am

Here's a pretty good thread on the replacing fuel lines.
viewtopic.php?f=9&t=31673&p=246621&hilit=fuel+line+replacement#p246621
Kirk

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RRoller123
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Your car is a: 1980 FI SPIDER 2000
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Re: Intake Plenum Fuel Line

Postby RRoller123 » Wed Feb 22, 2017 7:20 pm

You can use Fuel Injection Hose Clamps too. They won't tear the rubber.
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle

davery
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Your car is a: 1985 Spider
Location: Ohio

Re: Intake Plenum Fuel Line

Postby davery » Thu Feb 23, 2017 1:55 am

RRoller123 wrote:You can use Fuel Injection Hose Clamps too. They won't tear the rubber.


Can I use Fuel Injection Hose Clamps on both ends with a 5/16 fuel hose?
Don Avery
Dayton, OH/Sarasota,FL
1985 Pininfarina
2011 Eos
2012 Mercedes E550 Cabriolet

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RRoller123
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Re: Intake Plenum Fuel Line

Postby RRoller123 » Thu Feb 23, 2017 6:12 am

Yes, 5/16" is 7.94mm. Always tighten properly and check carefully for leaks regardless of what materials are used. Recheck regularly thereafter. I have made it a habit to open the hood after just about every drive, and take a good look around underneath. Usually with the engine still idling. Have found a couple of minor leaks, loose bits, etc. well before they were able to cause any serious trouble. We should never forget that these things are antiques. Lovable antiques! :D
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle

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joelittel
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Your car is a: 1980 Spider 2000 FI
Location: Evanston, IL

Re: Intake Plenum Fuel Line

Postby joelittel » Thu Feb 23, 2017 9:31 am

+1 I'm a frequent checker and it has saved me numerous times

davery
Posts: 804
Joined: Sun Apr 15, 2012 8:51 pm
Your car is a: 1985 Spider
Location: Ohio

Re: Intake Plenum Fuel Line

Postby davery » Thu Feb 23, 2017 12:13 pm

RRoller123 wrote:Yes, 5/16" is 7.94mm. Always tighten properly and check carefully for leaks regardless of what materials are used. Recheck regularly thereafter. I have made it a habit to open the hood after just about every drive, and take a good look around underneath. Usually with the engine still idling. Have found a couple of minor leaks, loose bits, etc. well before they were able to cause any serious trouble. We should never forget that these things are antiques. Lovable antiques! :D

Thanks. Now I just need to figure out how to get the barbed end off.
Don Avery
Dayton, OH/Sarasota,FL
1985 Pininfarina
2011 Eos
2012 Mercedes E550 Cabriolet


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