Zed Head

Not clear how this halts engine install. Anyway, interesting problem. Here's the Isky page just to round things out - http://iskycams.com/cart/index.php?main_page=product_info&products_id=959

Rising edge versus falling edge. There's a setting for it. http://www.megamanual.com/ms2/pickups.htm Might be GK has already moved on from the BMW parts though. Said he's buying a new sensor but didn't say if it was Bimmer or DIYAutotune. You can also use a GM HEI module to convert the VR signal to a square wave.

The diagram shows a G/W and a B/W. But, either way, that kind of shows that current flow has an effect. If you had them switched from correct then you would have had more current than design, since the resistor is not used for Starting. You probably had Start switched with Run. Too much current kept your tach from working. Maybe.

Didn't know you were using the 3 ohm coil. There's a newer version that doesn't need it, the Ignitor II, that is more of a high energy system and would pass more current through the tach circuit. Sounds like there might be other wires involved? Auto, dual point, relay? Maybe it's more than just a ballast bypass.? Does the tach do anything at all that indicates there's power running through it? Any twitching? ,

You can't wire the ballast back in, to check? Should be simple to do and not hurt anything. Maybe you have too much current through the tach circuit. If so, a parallel circuit might get it back working but still get high current through the ignition circuit. Train driver CO or Steve J might know for sure, among others.

One problem here is that you don't know if the card is wrong or the cam. If Isky sent you their L480 card, then it will be the same card you get from anyone out here. They probably just a file that says "L480 grind" on a computer and print copies out. Or just copy an old card from the 70's on their copy machine. Might not tell you much. Are you saying that you have two cam cards now from Isky that say "L480" but have different numbers? How about taking some pictures and posting them? How far off are the numbers and in what way? What kind of degree wheel are you using? Is it an actual wheel or tape on the damper?

It would be fun to just show up and see if people who could guess who you are by the way you talked and acted. Colliding worlds and all. Of course, some of us would have to keep our hands in our pockets.

Is it just me or is the site's appearance subtly changing on a regular basis? Or am I getting some sort of contact high from Cliff and Mark?

Somebody once said that he drove a train. Maybe light-rail? Electrical?

You're right, I accidentally ran the magnifier over it on his site and you can see the fibers. Leather sounds tougher though. That other one sure does look like a timing belt though. I was just joking around,

The leather one? Won't you need to apply conditioner on a regular basis? Or the timing belt? Probably only good for 80,000 miles. https://zcardepot.com/driveline/rear-axle/differential-arrestor-band-goto-240z-260z-280z.html?search=differential https://zcardepot.com/driveline/rear-axle/differential-diff-arrestor-band-belt-rear.html?search=differential I like the nylon strap. Same material as towing strap, it could be rated for 30,000 lbs. https://www.amazon.com/Smittybilt-CC330-30-Recovery-Strap/dp/B001CF4UXU I converted mine to metal.

Besides that, he lives out here in Oregon. How would you know anything besides some internet posts?

Ron Tyler is one of the most calm and considerate guys on the whole internet. You are way off base Blue. If you have something concrete to show, you should show it. Your general frustration with the world is getting out of control.

Damn. No wonder you've been quiet. I cut the tip of my finger off many years ago and a doctor sewed it back on. It was just a 1/4", not even any fingernail. Took many years until it stayed pink when it got cold out and softened up like a normal fingertip. My grandfather had a perpendicular thumbnail, from chopping his thumb-tip off right at the base of the nail while splitting wood. Pretty sure where he lived at the time if you couldn't sew it back on yourself you were out of luck.

A hockey puck might be the same material as the original coupler but I'm pretty sure it's a lot stiffer. Probably better than the ABS piece, but might not be that different from PU. Weird how the use of PU in certain places has tainted its use everywhere else. But it's also funny how the use of PU in one place led to its application anywhere else it could be jammed in. I still have my old coupler but it's starting to feel like a valuable antique.

I thought you asked him about the progressive rate springs. His answer seems boilerplate for installation. Irrelevant to performance though, and installation in your case. He did have some issues as noted earlier. I'd guess that these are low volume parts compared to his other products, so he probably doesn't have a ton of time for them. John Coffey died in a motorcycle accident a few months ago. He did comment in the past though, over on Hybridz, that he was only doing both sides a favor by telling about the new products. He didn't have anything to do with their development.

I know that MS used some odd labels for their sensor circuits and often recommend using input circuits that don't seem to match the type of signal being acquired. But Matt Cramer is familiar with all of that. Have you been into the MegaManual yet? Probably worse than digging up old BMW wiring diagrams. The search box is your best friend... http://www.megamanual.com/mtabcon.htm http://www.megamanual.com/v22manual/mwire.htm http://www.megamanual.com/ms2/pickups.htm http://www.megamanual.com/ms2/vradjust.htm

I found a STD Repco. You're probably right on the 020. Probably .020". 20 thousandths. http://www.ebay.com/itm/Set-of-4-New-Standard-Size-Repco-Pistons-w-Rings-Pins-Fits-Datsun-510-521-/311549667486?fits=Make%3ADatsun&hash=item4889cea89e:g:BnsAAOSwll1Wuz66&vxp=mtr

Many (most?) overbore pistons come with a stamp indicating size on the top. STD, .010. 020. etc. Nissan might use 0.5 mm, 1mm, 2mm. Any marks on yours?

Up or down won't matter, but I'd worry about the spring rates (see earlier in this very thread. I should have posted the Hybridz link). Hope it works for you.

They have different part numbers. Doubtful. I've never had an R180 though. http://www.carpartsmanual.com/datsun/Z-1969-1978/power-train/differential-gear

You're the guy that tears things down to figure out how they work! The tech probably took your tire to the back room and used one of these on it - https://www.amazon.com/Black-Iron-Tire-Repair-Plugs/dp/B019FZMIDM/ref=sr_1_27/168-6815766-1608455?s=automotive&ie=UTF8&qid=1470792775&sr=1-27-spons&psc=1 I have several in my various tires right now.

I think that just replacing a few valve seats can distort the others because the seats are cut to fit the valves after they're all installed. The seats are an interference fit so they distort the aluminum around them. One thing leads to another...

I don't know the L24 and L26 world well but the engine calculator I use suggests that an E31 should swap right over with just a small bump n compression ratio. 8.3 to 8.5. Same valve sizes. Here's one in San Jose. still has the brass seats and might have other problems. Just in case you find a major problem with the E88. http://sfbay.craigslist.org/sby/pts/5721622083.html http://www.ozdat.com/ozdatonline/enginedesign/ This is how we end up with a car we can't drive in the garage and a less full wallet.

I wouldn't say it all goes away. It's just reduced. PU is definitely more compliant than ABS. I have the PU rack bushings too. I installed the rack bushings and the coupler because I wanted to tighten up the steering. But, I do have one of those spongy steering wheel wraps over the stock 280Z rubber. I'd imagine that if you have a 240Z wheel with wood or some sort of aftermarket wheel, you would get more road feel. Follow the path from hands to road. And we should distinguish between high frequency, like a rough gravel road, and low frequency, like a bumpy road, and shocks, like banging a small pothole, And hand size. Donald Trump probably needs all rubber. Kidding!! Really, all you can do on these questions is recommend a direction. One person's firm ride is another's rough ride.