12mm Fuel Injection Hose?

Maintenance advice to keep your Spider in shape.
Post Reply
User avatar
RRoller123
Patron 2020
Patron 2020
Posts: 8179
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

12mm Fuel Injection Hose?

Post by RRoller123 »

What do we use for the 12mm fuel injection supply hose from the FI tank barb to the fuel filter?

The barb measures 12mm but I don't see that size FI hose available anywhere.

When using 5/16" in place of 8mm, no problem, there is only 0.002" difference, and only 0.017" difference from 7.5mm hose.

But the 1/2" I.D. line is 0.028" oversize, and that seems like quite a stretch.

So do you folks use 1/2" and just clamp it tightly? It is at lower pressure at this point in the system, so I suppose this is ok?

Pete
'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
So Cal Mark

Re: 12mm Fuel Injection Hose?

Post by So Cal Mark »

you don't need high pressure FI hose from the tank to the pump, that's the suction side
User avatar
RRoller123
Patron 2020
Patron 2020
Posts: 8179
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Re: 12mm Fuel Injection Hose?

Post by RRoller123 »

Ah of course, so the 1/2", which is significantly oversize, is fine, just crank it down tightly?
'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
User avatar
RRoller123
Patron 2020
Patron 2020
Posts: 8179
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Re: 12mm Fuel Injection Hose?

Post by RRoller123 »

Finally found some 12mm Fuel Hose. Vick's carries it.

Pete
'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
Post Reply