Tbaumer
Technical Excellence Contributor
Repeat spill rail leaks at the injectors, from the banjo bolts coming loose. Tightened to the recommended 9nm specification in the manual & overtightened when that didn't hold long. The hard plastic lines transfer vibration to the banjo bolts, so I replaced with flexible Viton tubing (1/8" Fluoroelastomer Hose• 100% Biodiesel Compatible • Max 400°F, Max 100 PSI at 70°F• 1/8" ID, 0.23" OD, 1.33mm Wall) between the injectors, new banjo bolts & crush washers. The previous banjo bolts had stacked copper crush washers (two) between the banjo bolt & injector (& one on the bolt head side). I only see one crush washer on each side of the banjo bolt in the manual, so that's how I installed the new banjo bolts & crush washers. No fresh leaks after a test drive. Hope this problem is solved.
Could the previous stacked washers have caused the frequent loosening?
Could the previous stacked washers have caused the frequent loosening?