madsoul

I have a 73 240z that leaks oil when the engine is running. It does not seen to leak when the engine is off. A friend told me that this was a spesific symptom of a leak at the oil pump, and that I should look in to replacing it. Has any one heard of this before? And couldn't the oil stop leaking when the engine is off because there is no pressure in the system, therefore the leak could be anywhere? thanks Madsoul

I bet you could get a few hundred dollars for a right side mirror in america.

I just posed a simular question to my parts guy a few hours ago. He told me that the 240z's never had mirrors on the passenger side, in america. The mirror that 70-73 240z have are the squarish chrome mirrors. Then after 73 we got the plastic round mirrors.However, in europe and asia cars did get both mirror but they weren't made by Datsun but by some italian company. He also said that "Z" race cars in America got cool cast iron mirrors that are convex and extremly hard to come by. I don't know how much of this is fact, because I just met the guy. If you want to speak to him directly about this subject let me know and I will give you his e-mail address. Sadly my Z only has one mirror. I would love to have the other mirror. If the Z's over there are right hand drive, do you think it would be possible for you to send me a stock chrome driver side mirror, that I could place on the passenger side of my car. send my an E-mail at bassplaynfool@yahoo.com if you think this could be a possibility. -Madsoul

I looked in the repair book a few days ago and I think it was 3.4 psi. I don't remember what it was in pascals or what ever the metric measure is but I could look it up if you want me to. madsoul.

Thanks for you help guys. It looks like the solution is pretty clear. I will look for some round tops and not the webers.

I have a 73 240 and I think that its probobly time to rebuild my carbs. Every one I talk to seems to have an intense dislike for the flat top carbs. So I'm thinking that I might just want to pick up a nice set of used carbs. Either 71's or maybe some double webers seem to be more readily available although they are also a little more expensive. What do you guys think about the cost vs performace of these two systems. Or which set do you think that Ill prefer. I have helped to install 71's and that seemed to be fairly easy. How much more complicated are the weber 32/36s to install? Any thoughts or theroys are much appreciated, madsoul

I have a 73 240 with flat tops. My runs like it is starved fuel. It feels like I am running out of gas if I maintain a high rpm. So, I dropped in some fuel dryier and replaced my fuel filters, then I replaced all my vacume lines and just recently checked my fuel pressure, cause I figured that the pumps couldn't keep the float bowls full and to my suprise the pressure ranged from 4.4 to 4.6psi. At idle and under load. I was wondering at what point too much fuel pressure becomes a problem? I was also wondering if anybody knew what the spec on the fuel volume was? Thank you for your time, madsoul

thank you, youv'e been very helpful

I still have the flat top hitachi's. You are right it could very well be a vapor lock issue. I was thinking that vaporlock was the kinda thing that would only happen once in a while one really hot days if the engine runs hot and stuff like that. Now I will definatly try to block the water to the carbs. I will see if I can get results like that then I guess I will try replacing the Mech pump. I really don't want to have to replace the electrical pump. I just rebuilt the carbs and have been blocking off stuff llike the throttle positioning valve and the gulp valves. I would also like to unistall the smog pump. I have read that you are a big fan of the Ztherapy carbs. If I can't get these carbs to run well, then what kind of replacement carbs would you reccomend for a guy can't spend the money on ztherapy stuff.

Has any one had good results form filling dash cracks?

I just bought my first 73 240z and I am having trouble with my high end fuel delivery. I just replaced both fuel filters, and I think its time to buy a new fuel pumps too. So basicaly I wondering if I should buy both pumps, or if any one has found that one pump fails more then the other? How can I tell which one has failed. I would like to be able to drive on the freeway again, so any advice is helpful. -Jesse

I just bought my first Z and I have a problem that I can't figure out. When I am idling and rev the engine the throttle fluctuates normally but it's in gear and lets say around 3500 rpms and I pop the cluch in the rpms stay a 3500 and will not drop down in till I shift into the next gear up. So I cleaned the carbs and lubed the throttle return spring and they feel ok. So I am wondering if any body thinks that the clutch is not fully disigageing and also happens to be worn just right that I am actually speed shifting. Thanks for your help. Madsoul