Everything posted by zKars
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Unusual Non Z car spotted
Well it is a K-car... But the rear end isn't wide enough to be Kardashian..
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Eeny, meeny, miny, moe
Tease!!! That's not fair. Not all of us can go for a Z drive right now.....
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Dump the heater, keep the fan?
That's an A/C evaporator core you seeing in there from the dealer installed A/C unit from the time. Heater core is in where granny says it is. No wonder you're concerned about the foot well space. Those ancient things are massive. You have to retain at the very least some warm fan powered air on the defrost to make driving in cool wet weather safe. Whether you want to retain the A/C part, get it working is totally up to you. They are separate, I'm sure you can remove the A/C box and leave the fan and heater stuff alone.
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Question about bump steer spacers
The reason that shortening the strut/spring via the use of shorter springs or strut change causes an issue is that you alter the angular relationship between the control arm and the tie rod from the rack to the wheel hub. Generally speaking, stock, the front control arm is at a approx 10-15deg angle to the ground as viewed from the front (wheel side lower of course) and the tie rod end follows the same angle. When you shorten the strut, however done, the control arm generally ends up more parallel to the ground. To compensate, you need to put in a spacer to restore the strut to stock length to get your steering geometry back when going over bump (control arm moves up, tie rod does not, result is some steering input you don't want... Overly simplified, its a 3D problem, but I hope you get the gist) So, after you change out your strut assembly and get the car on the ground and settled (move car back and forth and steer L and R) just look at the control arm. If its more or less parallel with the ground, put the spacer in. If its still angled nicely like stock, don't bother. In any event, on a street driven car you'll likely never feel the difference either way....
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Im still confused (alternator issue?)
Any alternator and voltage reg that keeps the system voltage over fully charged battery voltage will keep things generally running. 13.8 at idle is wonderful. Relax.
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hole size
You mean the hole that give you access to the 24mm head of the long bolt that is the Moustache bar end mounting point? Its about this big : '------------------------------". Or at least a 24 mm craftsman socket has about 1- 1.5 mm clearance around it when its on the head of that bolt. There's not supposed to be a plug to cover that hole.
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Strange NEW electrical problem??
Sure sounds like grounding issues. There most certainly WERE ground wires on the stock EFI harness. Obvious open bare ring terminals with black wires attached into the harness. The ones that comes to mind are right on top of the intake manifold, more or less in the center. Another is on from the AFM harness to one of the AFM mounting bolts, or rather from a simple black wire with ring terminal ends jumper that connects the body of the AFM with its mounting bracket on the body. Its mounted in rubber feet, so it needs that. SHould see a dangler somewhere on that EFI harness. Hunt!
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Auto to stick conversion
There is a welded bracket on the frame across from the starter where the clutch hard line connects to the flex line to the clutch slave. Its the same as any brake line L-bracket at any wheel. If the car has no such bracket, or the bracket it has looks poorly attached, it likely was an auto.
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Early 1971 240Z and Rheostat
George my response was a test of your resolve. Now that we understand shortcuts are not your thing, you have a heck of a job ahead of you. I'll have to take a picture of the back side of a dash so you can at least see how the thing mounts and what you're up against to get its two mounting screws out. Now since the windings are all exposed, you "could" flush it in place with a contact cleaner, some small ID plastic hose to aim the spray, a mirror, a light held in you teeth, goggles to protect from splash, spray and twist the handle back and forth. etc etc etc... DId I mention that alot of contact cleaners are hard on kinds of plastic, don't spray it just anywhere.... Then all you have to do is re-connect it! Simple, eh Zedhead?
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Early 1971 240Z and Rheostat
Option 2. Don't fix it, just disconnect it and re-connect the two dash-side leads to effectively bypass it. This just puts the dash lights at maximum brightness. Unless you have replaced your bulbs with fancy LED's or the like, you won't likely find the dash lights too bright. If anything you may actually be able to see your gauges at night for the first time!
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Help; Maximum carb air horn length?
Mikuni 40's are a hair under 5"
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Cannon Intake Manifold rod end possible solution
Now we need a source for just the right coil spring. AFM flap spring? old Thermostat bi-metal coil spring, innards from a tape measure? Think man!!
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Cannon Intake Manifold rod end possible solution
Zeddy: Anti-rotation feature = spot weld. John, don't confuse us with simplicity and reason at this point. We are on a design adventure here!
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Ring and Pinion
Numerically lower or higher ratio? I noticed MSA via Kameri has a listing for a ring/pinion sets in 3.154, 4.875 and 5.143 Motorsport! Kameari R200 Differential Gear Set, 4.875 Ratio, 70-89 Z/ZX - The Z Store! Nissan-Datsun 240Z-260Z-280Z-280ZX-300ZX(Z31/Z32)-350Z-370Z Parts
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Cannon Intake Manifold rod end possible solution
and a torsional style spring tension can be adjusted SO simply by just wrapping it more tightly or loosening it. No more hunting for just the right return spring! Brilliant!
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Cannon Intake Manifold rod end possible solution
Well, couple of options for you. 1. Weld up that out of line hole and re-drill it in the right spot. Yes it means taking the manifold off and having at least the welding done. But its the "right" way. You could also JB and drill/tap the hole back in the right spot too. I just don't like the permanance of the JB'ing the rod end into the hole. Makes taking the linkage apart a real bugger. 2. Or how about this. Get a long 1" x 0.5" aluminum bar to go across the three manifold holes and mount the three rod ends in this new bar. This has two advantages. First it allows you remove the entire linkage for alignment and service anytime you want VERY EASILY, and you get to place the rod ends where you want to best support it based on where you have your carb arms and throttle cable attachment point etc. I have this arrangement and like it very much. I especially like the ability to have the entire linkage on the bench when aligning the three arms to each other and to the bar. In fact I have a little connector/sync linkage between the front two carbs and only run two rod ends and two carb arms/push rods from a much shorter (and hence stiffer) 3/8 bar. I wish I had a picture handy. Maybe a comprimise would be to drill the existing hole large enough to accept a threaded bushing, so you glue in the bushing after its centered, but leave the rod end free to thread into the bushing. Could just grind off the sides of 5/16 18 nut to make the bushing. Many options, more will be suggested I'm sure
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Striking Rod
This is the remains of a scrapping of a dead late 5speed about 2 years ago. I salvaged the shifter ears to design/test short shifters, so had to take that nasty pin out to get the shaft out. Since this thread got posted I've thinking "dang I know I kept the ears part, but I must of tossed that shaft, didn't I??" I finally went to look, and guess what I found!!! That and I have more Z bits laying around than I know what to do with....
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Striking Rod
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Door Skin Weld Broken?
This is a common failure point. Seen it on lots of Z doors. There is another crack spot at the rear in the same relative location.
- Harness's for the 77 280
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Air box door cable clip
I can pop one in the mail for you tonight from Calgary. Drop me a note to z240@shaw.ca with an address.
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Distributor Help
yellow wire is likely water temp sender wire. Bullet connector on the front of the upper rad hose housing.
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Getting that vinyl off the interior scuff plates
Heat. Lots. Burn the sucker off.
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DIY Air-Fuel meter
This should get us on the same page. "Technology for Tuners"Newsletter #3 :: Exhaust Clamp, XD-1, How Wideband Sensors Work, and more! Modern, affordable accurate wide band AFR is available to masses without having to build our own circuits. One of the better known systems: Innovate Motorsports LC-1 and LM-2 WBo2 WideBand o2 Systems Megasquirt Kits / Assembled Engine Management Systems, Wideband o2 Sensor Systems and tuning products - DIYAutoTune.com
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Heater/vent tubes
Pretty tricky to fix permanently. Old flexible plastic parts don't mend easily. Duct tape just doesn't seem right. Someone will chime in with some ideas, but if one or more pleats are ripped now, then more will happen soon. I have some spares if you get stuck.