Dear Arkady,

Since you are now in Morocco (?) you may find it easier to obtain
hose locally than order from the US.

At 08:08 AM 4/10/2010, Arkady Mirvis wrote:
>I am planning to replace all 19887 Westy fuel system hoses. Can
>anyone inform me about exact inside diameters of hoses:
>
>1. Fuel tank - fuel filter

11 mm (I.D.) by 3.5 mm (wall thickness).  VW p/n for 5m roll N 020 300 1.

>2. Fuel filter - fuel pump

11x3.5 same p/n

>3. Fuel pump - canister ( I have no idea what purpose it serves ) *

7x3 high-pressure hose (system works at 3 bar, pressure could rise to
7 bar or more if regulator malfunctions).  VW p/n 5m roll N 020 281 1.

The canister is a big fuel filter.  Some Vanagons have one, some the
other, some (like yours) both.  Supposedly it's permanent, but I
think that's optimistic.  p/n 1H0 201 511A.

>4. Canister - to fuel line **

7x3

>5. Fuel line - thru firewall fitting

8x1 plastic tubing, shouldn't need replacing as such.  p/n for 5m N
020 130 2.  Says also use 2 ea 191 201 316A 6x29 mm sleeve and some N
018 014 1 14x0.8 insulating hose (I think this last may be for inside
the engine compartment).

The plastic firewall fitting is unsafe -- replace with a metal one or
do without.  Recent parts drawing shows a grommet and 7x3 hose to
pass through firewall.

Return line to the tank is also 8x1 plastic tubing but different
p/n.  5m roll is N 020 130 2.  Also use 2 ea 191 201 316A sleeves.

>6. All other fuel system hoses in the engine compartment .

The hoses are all shown as N 903 397 02 (fuel hose, 56 cm long)
shortened as necessary.  Dimensions not stated but I believe list
vendors use Conti 6 mm I.D fuel injection hose.  The protective
sleeving is 15x0.8, 5m p/n N 018 015 4.

Good luck,
David