Fuel Starvation Problem

[Chino 240Z]

Cool deal Marty! Glad to hear problem gone and had a perfect track day. We got back last night from our track day and was also awsome. Was worried about the rain we had the day before, but it cleaned up our track with 85 to 90 degree sun and puff white clouds in a blue sky. I'll put up a couple pics tomorrow. Everything worked great, cut 2 more seconds on my best lap times and still feeding off the high!

An insullation gasket will do it I guess. You might be able to spray some starting fluid around intake gaskets, caps, hoses and such (caution flameable) to help find leaks. The motor will change in it's idle as the ether is taken in. But you might already know that... anyways...

Thumbs up for a great track day! Cheers

Craig

[Marty Rogan]

I'll put up a couple pics tomorrow. Everything worked great, cut 2 more seconds on my best lap times and still feeding off the high!

An insullation gasket will do it I guess. You might be able to spray some starting fluid around intake gaskets, caps, hoses and such (caution flameable) to help find leaks. The motor will change in it's idle as the ether is taken in. But you might already know that... anyways...

Craig

2 Seconds, great job! It may not sound like a lot to some people, but 2 seconds at the track is huge!

I have heard about spraying carb cleaner around the throttle linkage, but I would not have thought to spray it on the carb insulator.

Anyway, I am very happy to have that problem behind me.

Marty

[raminduction]

I had a similar problem on my '71. The thing ran FINE until I installed a oil cooler on the right side of the radiator. Amazing how much heat those bad boys give off! It took me a while to figure out what I had done, but once I got my head out of the "dark place", I realized that the heat coming off the oil cooler was causing the mechanical pump and the fuel filter to over heat and cause vapor lock. I solved the problem by adding some ducting to direct the oil cooler "exhaust" out the bottom of the car and away from the brakes too< and added another small duct to keep the mechanical pump and filter cold. Haven't had a problem since. Engine screams all the way to 7k with no fuel starvation problems.

On the OTHER hand, for all you early FI people (280Zs) having fuel starvation problems, it isn't always the tank. While this is new to me (first time with a fuelie car), it probably isn't to those that have already been through the school of hard knocks: there is a NON-DOCUMENTED fuel screen in the suction of the electric fuel injection pump that's cone shaped, not on any parts lists, and NOT shown on ANY of the fuel pump cut-aways, even in the factory service manuals. Fortunately, this little troublemaker can be fairly easily removed with some needle nosed pliers, thoroughly cleaned, and replaced.......

Hope this helps to solve some of the fuel "starvation" problems.