Everything posted by Zed Head
-
Need help with brakes
Oops, I didn't read the full message. Things have slowed down, forever. Datsuns Northwest has closed their doors. Not looking good for car clubs. Maybe the Seattle area. But it looks like somebody will be organizing the occasional cruise or meet. So, keep the site in mind. Probably these guys, Datsuns Northwest. I never joined but the Canby show was/is always a big deal. Things have slowed down a bit since I got in to the game but that doesn't mean they'll stay slow. Worth a look. http://datsunsnw.org/
-
Need help with brakes
If you swap them the bleed screws will go to the top. If they're on the bottom that's your problem. It's a common problem.
-
Need help with brakes
Check the bleed screws. Pretty common for people to install the calipers with them on the bottom where they're easy to reach. But they need to be at the top where the bubbles are. The calipers can be swapped.
-
Isolation Videos/Content to Keep Spirits High: Post Something (Non-Virus) for Entertainment of Others
Eagles and foxes
-
Urgent - 77 280z head match N42 or N47
Makes sense. Nissan used the N47 head on the N42 block until they changed to the F54 block in about mid-1980. Nissan did do some odd things with the cam lubrication though in 1977. They switched from the spray bars to the internally oiled cam. Make sure that those parts are right. Carry on.
-
COVID-19
A house divided. Competing with, probably, Jared Kushner, Or Jared is actually the drug dealer making the deal, controlling the market. Get your own PPE! https://www.nejm.org/doi/full/10.1056/NEJMc2010025
-
Urgent - 77 280z head match N42 or N47
Only the engine block can be matched to the chassis and that is only up to 1976 (maybe 1977), Nissan put the engine block serial number on the ID plate by the brake master cylinder. Either the N42 or N47 head will work exactly the same on the N42 engine block. But the exhaust manifold for an N47 head does not work well with an N42 head. So that's really what you need to match, the exhaust manifold. If you have an N42 head with a square port exhaust manifold it will bolt right on to the block and work fine. Your mechanic should know this. p.s. 1977 was the year that Nissan changed from the N42 head to the N47 head. So you could have either. Your mechanic might be looking at some sort of database and using 1977 as a guide. But the N42 head is found on 77's also. Just rebuild that N42 head and use it.
-
When is It “too far gone“ to be worth resorting?
It's just math, time and understanding. New is easy. I screwed up in my first post because the rotor is separate from the hub. I was thinking of other cars where they combine the two.
-
Won't go into gear
Thanks HS30. Looks like one of those companies that split off a division or two. It's what big companies do. It's hard to tell who's who sometimes. Surprising that it broke, but who knows what abuse it might have seen. http://eac.exedy.com/eac/company/history/ https://www.exedyusa.com/company/
-
When is It “too far gone“ to be worth resorting?
He asked if they were still good. They probably are. So, not really a dumb question. There are still a few NAPA stores and small shops around that have a guy that knows how to run the rotor turning machine. The way they do it allows you to keep the bearing races in. (Edit - since the rotor is separate bearings don't come into play, my mistake). Why waste money if you don't have to? Take 'em off, drop 'em off, pick them up in a couple of hours, bolt 'em right back on. It's old school. And, who knows what "new" means these days?
-
Ignition Timing Mechanical Advance
10 initial + 18 vacuum + 20 centripetal = 48. 34 is just initial + centripetal. High PRM cruise could get both vacuum and centripetal max'ed out maybe. What's also interesting is that the PCM/ECM/computer "learns" and holds on to variable to optimize certain things. The O2 sensor feedback probably comes in to play along with EGR. Anyway, finding 50 degrees on a Hyundai is one of those things you probably would never know without the scanner. My point. Once you see it then you can try to figure out why the automotive engineers made it happen.
-
Won't go into gear
-
When is It “too far gone“ to be worth resorting?
Most of those parts are still good. Rust "grows" so it looks worse than it is. The rotors can be turned, the hubs are still good on the inside where it matters, the struts can have shocks inserted, etc. The insulators at the tops of the strut are hard to find. The half shafts and u-joints are probably still good. The steering rack rubber looks intact. Lots of good parts there.
-
Won't go into gear
How does a person forget about a spare transmission? Don't forget that the first gear ratio matches certain diff ratios best. You might be going back to a better match if the diff was never changed. The close ratios used a 3.9, the wides a 3.54, in general. Not a big deal just something to consider.
-
Won't go into gear
Which brand of pressure plate? Any numbers or markings. To be avoided.
-
saturday night music thread
This one just belongs here after that one.
-
COVID-19
Not sure I heard him right or if the media is fixing it for him. Never mind.
-
saturday night music thread
Seems to fit, a bit...
-
COVID-19
I can easily imagine a civil war within a civil war. The people who bought all of those guns using them against the people who don't want to fight the virus, but also bought a bunch of guns and ammo. Here is Alex Jones back in the public eye. This stuff used to be just crazies on the internet but now they are out and active. This can't end well. Stay At Home makes even more sense now.
-
COVID-19
This data set, below, can be sorted by clicking on the column header. Click "Deaths per one million population". The USA is moving up fairly rapidly. Look at all of the countries below us, doing better. Of course, the data is always suspect, but still, we're supposed to be "the best". It really is amazing that all of this is happening. This is not the America that anyone recognizes. We're not saving or helping some other needy part of the world. This is all internal, no matter where it started. https://www.worldometers.info/coronavirus/
-
COVID-19
He is a desperate man, a wounded animal. Jail time, or at least years of trials and exposure, is waiting for him if he doesn't get re-elected. It's probably going to get much worse, especially as the election gets near, if the polls show him behind. If he loses, that lame duck period will be extraordinary. I'm talking about the man himself, not the party. These are fascinating times.
-
Cars for Sale: 1978 280Z
That's actually a nice car for the price, even with the terrible paint and the sunroof. I wonder if they gave it a 2+2 price but don't realize that it's a coupe.
-
COVID-19
I hope that Dr. Birx is watching Governor Cuomo's briefing. Because he knows much more about the heart of the testing problem.
-
Ignition Timing Mechanical Advance
If you want to see what the manufacturers do when they have complete freedom from the mechanical stuff, get an OBD reader with live data capability and look at what your other vehicle does. It's pretty interesting. Here's a screen shot from a 2003 Ford, fully warmed up. Running coil packs (wasted spark) with EDIS, and a crankshaft trigger. Factory stock. They control timing and use an IACV to hit a target RPM, apparently. p.s. I don't have aftermarket engine control, but I've considered it. I got in to the factory systems and the OBD readers because I had a code on a used vehicle that I could not figure out. It was caused by a vacuum leak. This live data is read directly through the PCM.
-
want to put 240z bumpers on 280z
It's all good. We need more parts suppliers. Good luck.