Ed

I'm a home and work guy, if the boss (wife) gets on me for spending too much time on at home then I just wait till I get to work. There nobody really cares.:classic:

Tom, sounds like you have a short somewhere. Start by inspecting all your ignition wires. Clean all connections with some sandpaper and use some dielectric grease. You need to be thorough and insure you don't have a short anywhere. I can't remember this test so someone help. You should be able to connect a voltmeter to the battery or it's connecting wires to see if there is a drain or short. HELP????????????

280zgod, I understand your need for speed. I think all of us do. But I can tell you that a little more is never enough. It addictive first this, then that, it really doesn't stop. Until you run out of money or bolt on mods. Seeing that your on a budget you might want to reconsider the cam. Properly done parts alone will cost you close to $500 bucks. I know MSA offers the cam for $160 but that will only get you started. You will need new springs, rockers and lash pads. You don't want to do one without the other or you might as well send me the money cuz you will be doing it over again. Without new parts you will destroy your new cam. Now if you have the money to do it right I would go with cam A, .480 lift and 274 duration. Anything hotter and you will start to have problems. If it was me I would first tend to the # 6 cylinder which seems to have low compression compared to the other five. You mentioned you had a N42 head. The N42 is a good head and has the large valves. Only bad thing is it has less than desirable intake valve seats. With age these seats tend to "sink" (I can't think of the correct word). And would probably need replacing along with a valve job. I could go on but I better not. Let me know if you have anymore questions.:classic:

Found this on e-bay and thought it was a weird way of repairing the frame rails. Notice the notches. And is he just covering up the old rusted metal? What do you guys think?

Porting = Opening up the intake and exhaust passages by removing extra casting material. Take your finger and run it along the port walls. You will feel little bumps and extra casting material. Now you can have mild port work done where only the rough surface is removed or you can have the port worked and opened up to it's maximum effeciancy (done properly with a flow bench and years of experience). Polishing = This is where you polish the port wall to a smooth mirror finish. You will hear contriversy on this one. Some people say polish only the exhaust ports for smooth air flow. But leave the intake port walls rough to promote air flow. If you have a smooth surface in the intake then your air/fuel mixture will stick to the walls.??? Valve job = Replacing or resurfacing valve seats. As long as the valve is still in good condition, they will cut a 3 angle surface on the valve (for better air flow). They should also check the valve guide to valve stem clearance.

There are other factors you must consider before purchasing a cam. Someone correct me if I'm wrong. 1. Will you ever use this car on the street to go get groceries? 2. What sort of fuel system will you be running (carbs or injection)? 3. What type of engine do you have (L24,26 or 28)? 4. Which head do you have and does it have any port work? 5. What type of exhaust are you running? 6. What type of ignition system (stock points, electronic, or other)? 7. Have you upgraded the brakes yet? As you can see these are some factors that will determine what cam will best suit your needs. The more upgrades ($) the engine has the bigger cam you can run. But on the other side of the coin you won't be able to drive it on the street without loosing a couple of fillings.:classic:

Whats with the cloth seats?

Since you have the head off I too would take it to a machine shop. I had bought a head where the PO obviously tried to do some machine work himself and the drill went the wrong direction. What a mess. I had to have the hole welded, redrilled and retapped.

Yes it was. She's quite the handfull.

On mine the front crossmember was about 5" from the ground. I found this a bit too low for a couple of reasons. 1. My jack is 5 1/2 high, so if I wanted to jack the front end up I would always have to drive my car onto a couple of 2x4's. 2. Going over speedbumps was always a nailbiter. I would creap over as slow as I could go because if the bump was a bit too high when my car would come down the exhaust would hit. 3. If you have a front spoiler. Going up and down driveways that had a bit too much angle would result in a scraped spoiler. You might not see speed bumps or driveways everyday but that one time you do you will find yourself between a rock and a hard place. $.02 I will be keeping my car at the same height because I love the way it looks.

One thing that the manual won't tell you to do. You will probably notice it when you remove your old cartridges. Before you put in your new cartridge you need to put about 1/4 cup of ATF in the strut assy (in the hole where the cartridge goes). Not only will this help prevent moisture from rusting out your cartridge it also helps disipate any heat that builds up during heavy use.

Sounds like I need to go out and get a "sacraficial" car. My daughters are approaching driving age. I took my oldest (13) and gave her a lesson in my Maxima. She couldn't stop laughing, the whole time, ha ha, ha ha, ha ha, . I felt like I was with Beavis. I can hear it now "Dad can I borrow your Z to go out with my friends"? Who will be lauging then?

This is the way I did mine. If you have the stock springs you should use spring compressors or you will have a hard time clearing the wheel well.

After sitting for three year you could have several problems. Brakes sticking, master cylinder sticking, or e-brake cable. You will have to give her a "physical" start by removing the rear drums and inspect the cable, cylinder and the shoes. Once the rears are working good move on to the front. Remove the calipers and see if you can manually push the piston back into the caliper. Sometimes these will rust and get stuck to the caliper. If you plan on driving it for a while you should rebuild or get some new calipers. It's good stopping insurance. Bleed your brakes with some fresh DOT 4.

O.K. Now who's the dummy? I took the test and at the end it wants my credit card information to send me the results. I got my results. 127. No credit card required:stupid: .

Here is a picture of a head (N42) for reference. As far as I know and someone please correct me if I'm wrong, numbers 1-11 red are all studs. And numbers 12-17 blue are all bolts. Which ones are supposed to be the long studs I don't know. Maybe someone else knows?

Joseph, not sure if they are the same but the bolts on my 72 have a T R and #7 stamped on them.

Thanks Carl, I think I'm going to go with the studs suggested by gramercyjam. They seem to have quite a good selection for a pretty good price. Edit: I just did my home work :stupid: . Anyway I pulled a couple of old studs out of my spare engine and found 2 different lengths. Total length of the short ones are 43mm and the long ones are 48mm. The thread length is the similar on both 14mm on the short side and 19 mm on the long side. The only difference is the length of the center of the stud (the blank space). The short ones are 10mm and the long ones are 14mm. (+,-.5mm) When I looked through the Mcmaster catalog I couldn't find the correct size. Sorry. I guess it's back to E-bay. :stupid: :stupid: :stupid:

If the oil pressure goes all the way up it's because there is a short somewhere in the wire that goes to the sender. This is a way to test the guage. You ground the wire and if it goes all the way up then the guage is working, similar to the water temp guage. It might be a short or your sending unit may be faulty.

Start by topping up the oil then drive it to a car wash. Use the high pressure hose to clean the engine. Then start it up and drive it home. Once you get home you should be able to see exactly where the oil is coming from. I would bet it's your valve cover gasket. You said it was fairly new but it might have gotten pinched or isn't sitting correctly. Replace it. The torque for your valve cover bolts is 5-8 lbs. If you do use a new gasket re-torque after a few days. The price tag on an engine rebuild varies alot. You can spend anywhere from $1000 - $10,000. It all depends on what you want. A basic rebuild, bearings, seals, gaskets, and rings, basically a re-fresh, no machine work just a rebuild. Will cost you close to $1,000. If you pull the engine or leave it in the car will also be a variable. How many miles does the engine have? Does it burn oil?

Hope this helps. 240z-chassis-measurements.zip

I thought they were all the same. But after seeing this I thought I'd ask. Here

Is there a difference in the length of the studs that hold the intake/exhaust manifolds to the head?