Don East

Well the saga goes on. Quick review. I've completely rebuilt the fuel system. I just completed rebuild of the dizzy. both of these items has made a difference. The car ran like like a dream for 24 hours and about 60 miles, and then, starvation type systems again. I was able to crawl home at under 2000 rpms. A person earlier had suggested vacuum problems so I'm going to check every hose. Still open for any ideas. Has anyone ever had a problem like this because of the brake assist chamber? Thanks to all who have made suggestions to date. Things are getting better. It's been many years where I've had a collection of smaller problems all leading to one big problem. We must all really love these cars. Don

Well, It's running. finally finished the dizzy with a Petroniz pickup unit. Still have some additional driving tests to do and some fine tuning.

Altabow, thanks for the input. I started out with the same idea. I have changed filters, cleaned all of the gas lines and even had the tank reconditioned. I'm now working on the dizzy approach to the problem. The thin gun metal metal plates in the dizzy were rusted and the shaft on the updated dizzy had begun to sizes up. Finding a replacement has been a bit of a challenge. I have found an original single point dizzy for my car and I'm looking for rebuild with electronic interior parts. If anyone has suggestions I'm open for ideas. Thanks Don

Thanks Wade, I needed that! Don

Another question: When I had this car and it was new, I was able to tune the car to a point when the tail pipe was gray inside. At this condition the car was tuned perfectly. For many years I have not been able to achieve this level of tune. I've begin to think that the gray came from the fact that I was running 100 octane gas. Remember it was available in 1972. Anyone have thoughts on this idea? Thanks Don

I took the dizzy out and there was some rust on the thin metal plates also one ball bearing is missing. I've been trying to find a rebuilt or replacement. and the only think I can find is from Mallory. Does anyone have any other suggests? Thanks Don

Well I've gone completely through the fuel system including having the tank redone. No change. Tomorrow its dizzy time. Don

EScanlon, this sounds like my next , take a look and see, thanks for the input. I looked at the vacuum hose and it looks fine. Thanks Don

I need to ask a dumb question: What is a dizzy? I'll have time to answer madkaw's questions later this evening. Thanks Don

What kind of a switch did you make? Thanks Don

I have a 72 240Z. I thought I had a fuel starvation problem. I've installed a new mechanical fuel pump. Blown out all lines, Removed the gas tank and had it refurbished by a professional, replaced all hoses and made sure there are no restriction in the lines. I just installed an electric fuel pump near the fuel tank. I have not field tested the electric pump while driving as of yet. I'm waiting for a replacement fuel indicator. Here is my question what else could be causing the problem? The distributor has been replaces with a newer electronic distributor. My Son did this and I believe it was from a 260Z. The car also has a MSD ignition system and Coil. On level ground the car runs great. I can rev it up to 5,500 rpms in all gears no problem. I start pulling a hill and it just runs out of power. Anyone out there have any ideas? Thanks Don Just thought I'd and a note: I've had this car since it was new.

Where do I get a Nissan part?

I had just replaced the sender before I made this thread. I guess the brand new one could be bad. I'll try and find a gauge that I can hookup to the car and test the pressure. Thanks to all for input and ideas. Don

I have a 72 240 I've had since new. My son and I restored it about 15 years ago. I was driving it the other day and the oil pressure gauge went to almost "0". I've checked the gauge by grounding the lead and it worked fine. I've replaced the sender and no readings, or very slight reading. If I take the oil filler cap off and look in, oil is splashing around inside the engine. I changed the oil and filter about 6 weeks ago. The engine runs and sounds fine. Any suggestion on what to look for next? Thanks Don