Interesting - maybe it was only on cars destined for hot climates e.g the middle east ?
Working on my project 750 Highline and ripping out a lot from the engine room for replacement of many wear parts such as fuel lines, plugs, dizzy caps, injector nozzle o-rings replacement, cleaning,
intake polishing
and other things, I find that the fuel return line goes INTO the aircon tube for cooling and then out again to be re-fed to the tank. Have not seen that on my other 750's. It might be against vapor lock? Someone knows that?
And that was my special tool to get the injectors out
No, actually a joke when we talked about what is the best method
http://www.bimmerboard.com/members/t...l/CIMG4248.jpg
Interesting - maybe it was only on cars destined for hot climates e.g the middle east ?
1991 BMW 525i sport manual, BBTB, Mintex Extreme Pads, Bilstein dampers and Eibach springs,Viper2 chip, //M5 Replica.
mercedes v8's have it too.... its to help cool the fuel since a constantly recirculating fuel system like bmw and mercedes used then would actually heat up the fuel in the tank by bringing it up past the hot manifolds and then sending it back to the tank, this cooling from the ac suction line helps to counteract that.
Originally Posted by shogun