claywillard

Anyone know the technical description of the fitting at the fuel rail end of the OEM stainless steel braided flexible fuel line? ie: pipe, tubing, JIC, etc. I am pretty sure it is 14mm, but of the two fittings that I have sourced, neither seems to seat properly. I need to extend this line and cap the inlet port at the fuel rail.

pearlpower

Curious why?

Roverron

Might want to feed the fuel from different part of the rail. Thats just a guess.

claywillard

I am feeding the fuel rail from behind the Throttle Body area. I have looped the rail as well. I just am not convinced that looping alone is adequate. IMO the issue of lean #8 cylinder is due to the close proximity of the inlet to #8. Fuel is supplied via a 5/16" line at high pressure. It enters the rail, which is considerably larger, and hits the rail wall directly across from inlet port. I believe that turbulence, which is increased as pressure drops at WOT, is causing inadequate/inconsistent fuel supply to #8. Looping improves this condition but does not completely eliminate? Just my opinion.

tunaglove

It's called a "Komatsu" thread.

tunaglove

I'm sorry I thought you wanted the name of the fuel inlet thread.....

http://mdmetric.com/4300/Komatsu%20Style%20Adapters.pdf

claywillard

Great. Thanks tunaglove. We actually have Komatsu fittings at work. Again, thanks for the info!

Forrest Gump 9

Good idea. I would "T" the looped line and feed there (of course cap off the stock feed location.