Problem - Loss of Power. Fuel filter loses prime.
Obvious problem. #1 and # 2 Return cloth covered lines wet and # 2 leaking with a little pressure on low pressure fuel system. Ordered new vw/MERCEDES 3.5mm line (on-line). In the interim, used rubber fuel return hose available at Advanced auto. (Because could not get the VW 3.5mm cloth covered rubber line locally).
# 2 injector behind pump would not stop leaking. Fuel filter still loses prime.
Pressurized fuel system and leak will not stop with rubber hose. I tried some used pieces of cloth covered hose with no avail. Bottom nipple on #2 leaks.
Swapped @ 2 injector with # 4 to eliminate possible cracked output nipple on #2, but the new # 2 leaks at rubber hose. Old #2, now # 4 does not leak at rubber cap.
May be as simple as wait for cloth covered 3.5mm hose, install and test with pressure, but the rubber hose should have held temporarily.
It takes a little pressure to create leak, but it always leaks at #2 bottom nipple. And it definitely loses prime.
This is a daily driver, the cloth cover return lines had only @ 50K (2yr) so little early to be aged, vehicle normally gets about 700 miles per week on it. Recent problem.
Been driving VW diesels since early 80s, never had one lose prime with aged worn return lines. But it loses prime and will not self bleed fully. Will self bleed enough to run. Pressurize prime, and it fires up. with full power, but slowly loses prime. Less fast than at first, but definitly not driveable.
Incidently -New fuel filter, new Air Filter 3/4 tank. No other leaks. http://****************.com/smile/emthup.gif
So while I wait next week for 3.5mm cloth covered rubber hose to be fedex'd I am asking myself, is there something else that contributes to losing prime and loss of power.
Tank is venting. I am using the vent hose at engine bay to pressurize tank, so know I have vent. Removed fuel cap and it pressure won't build. So I am venting.
I guess the cloth cover acts as a clamp on this line. I feel like a fireman who can't put out a fire because I am missing something and cant build water pressure.
This will be the last time I am out of this cloth covered rubber hose. I ordered enough for 3 vehicles.
I am writing this because there is no priest locally and I am not catholic anyway, but frustrated enough to be quite sinfully foulmouthed about my little truck being grounded. I'd really be perturbed if the cloth covered rubber hose does not fix it.