MFI hard line install

[neilk]

Hello,

After years of having a box full of MFI parts, including a pump having recently gotten a clean bill of health from Mark Jung, I have started the conversion process from carbs to MFI. I look forward to a cleaner smelling garage with the replacement of my weeping Webers.

The pump and cleaned up throttle bodies have been installed as well as new fuel injectors that I bought 5 years ago. I started installing the hard lines but after torquing down the first line, I noticed that the line would move as I did the final tightening. When I disconnected the line from the injector, it no longer lined up. I realize that the lines are flexible to a certain extent, but is there a recommended way of installing the lines so they are not slightly torqued/twisted?

Should I put any anti-seize on the threads? I couldn't find any links, besides install torque, on how to install the lines.

Thanks for any advice.
Neil

[edmayo]

ALWAYS antiseize on the threads. and even so you may need to hold a line in position while you tighten the line nut. In addition to the rubber dividers on the throttle bodies that help cradle the lines, there should also be a clamp holding the three lines together usually positioned near the MFI pump.

[neilk]

Thanks Ed!

Will add antiseize. I have the dividers on the throttle bodies and will look for that clamp on the lines.

Hopefully all will go well and I won't have to flatbed it to your shop

thanks again,
Neil

[RSTarga]

Make sure and use the proper flare wrenches and progressively tighten at both ends too.

[SIMI BOB]

Make sure there is some lubrication between the line and the fitting, not just on the threads.
Bob B

[xpensivewino]

I used a crows foot up at the top of the pump. It helps with several of the lines that are hard to torque.