AZ-240z

I don't post much on this site, but do enjoy reading all the interesting posts here on a daily basis. I am looking for the summer 1997 issue of the now defuncted "Z Car Magazine". If any of you have a spare issue you would like to sell, I would love to buy it. Thanks for listening.

Hi Guys, This is a general question to the forum. Is there a way to measure an E-31 head to determine if it has been shaved below tolerances while still installed on the engine, or, must it be pulled to get an accurate measurement? Thanks for your input. Dan

Hello Group. I don't post often but I follow discussions on this forum daily. I have a restored to factory specs 71 series 1 Z and have done everything seen in this forum to solve my cars warm disposition. The latest, which had a large impact on the gage reading, was to correct the gage reading by adding 5 ohms of resistance in series with the heat sensor. I used Joseph Demers article in the summer 2003 Sports Z mag to validate and correct the gage. Instead of physically taking out the gage and risking breaking it by moving the needle as he suggested, I used a correcting resistance at the heat sensor. anyway, my thought and question to all. With the close proximity of the thermostat housing and heat sensor to the exhaust manifold, how likely is it, in your opinions, that the heat sensor is being adversely affected by this parasitic heat and is measuring exhaust manifold heat along with coolant water temp? I did use an infra-red thermometer and got a temp reading on my car of 240+ F on the bottom of the thermostat housing where the temp sensor is located and a reading of 195 F at the top of the housing. All other areas of the engine read 185-195 F range. These are just my observations and would be interested to hear your thoughts.

A question for the cooling system experts about the indicated water temp on my early '71 240z. Referencing Joseph Demers article ,"Steaming Over Your Z" in the summer 2003 issue of Sports Z magazine, I am trying to determine what my temp gage should be reading. I have put together a series of resistors equal to 37.3 Ohms which is equivalent to 185 degrees F. according to Dr. Demers and plugged it into the temp circuit to check where the needle on my gage falls, which is one needle width right of center. My question to everyone, given that the min gage reading is 120 degrees and the max reading is 250 degrees, would you all agree, or not, that the middle of the gage index is equal to 185 degrees. ( 250 - 120 = 130; half of 130 = 65; 120 + 65 = 185) If my reasoning is correct, I have determined that if I add in 5 Ohms to my temp sending unit circuit, the gage should read 185 degrees and be exactly in the center of the gage. Sorry for the long post, but I need to have an accurate temp gage in the AZ climate. Thanks for listening and for your help.

Hi Guys, I am an avid reader but infrequent contributor to this forum. I do need some help and thought that someone may know. I am installing a splash pan on my newly restored 1971 Series 1 240 in hopes that it may help in aiding the effectiveness of the rad. cooling fan. I need to know the bolt size and thread pitch for the bolts that mount the pan and would appreciate any info. Thanks Dan

Victor, If you don't find the plastic VR cover, and I am also in search of one, you might check with Banzai Motors (www.zzxdatsun.com) as I believe that part is on the drawing board for one of there next reproduction parts. It may be a while before they have it in production. Let me know if you find more than one.

Great topic, Harry. I am the proud original owner of a ''71 series 1 Z which has recently undergone a frame up, very original, restoration. My main point; there aren't that many series 1 cars left that are in restorable condition. Of those, most will probably be highly modified instead of restored to factory specs due to the availability and cost of original parts. Value was not the primary consideration for doing this restoration which cost me in the $30,000 range, but I have been told by those in the business that I got off cheap. Nissan ended up doing only about 40 instead of 200 restorations due to availability of part. Considering all of these factors, I believe that these original restorations will rapidly increase in value in the near future. My car has many new, not reconditioned ,parts that can only be found, very rarely, in dusty store rooms or in the dreams of a restorer. I am by no means wealthy, but, having owned this car for over 32 years, this is something I had to do, something my wife and friends will never understand.

I am interested in seeing your MSA pics. Could you possibly provide a link to them or tell me where I can go to find them. Thanks