jon haney

That's okay. My college era math skills are mostly gone, too. Was just pointing out other factors that would affect a real world result. I always laughed at all the text book problems that would state: "assuming an ideal gas" or "assuming constant temperature".

Related to the actual Question: (What is the max rpm of the disc before the cam follower leaves the surface of the disc?) I believe we would need to know spring rate, starting seat pressure, effective mass of the follower/spring combo, and any friction of movement of the follower. As Tomek would say, Fun stuff.

You and I have different definitions of "fun".🤪

I assume you are referencing the photo Tom posted, but I can't open it on my work computer, and I can't use my cell phone in our building due to very weak signal.

Given the same stem diameter, stem length, and head diameter, how can the TI valve still weigh almost as much as a stainless valve? Is the head of the TI valve that much thicker? Personally, I would only use TI valves on intake, but I'm not a pro-stock engine builder. Wait. Is the stainless valve stem hollow, and filled with sodium?

Let the wheelies begin!

LOL. The one place I forgot to look.

Don't see where he said 4000 RPM. That would be too high even for a malfunctioning fast idle circuit.

For FI Birds, there is a mechanism on the throttle bodies that defaults (cold condition) to a fast-idle, and then when the coolant gets warm, it goes to a normal idle. That mechanism may be "sticking", the wax inside the actuator may be leaking/going bad, or the flow of coolant through the tiny hoses may be impeded or blocked. Once all that stuff gets some heat from the engine and exhaust pipes, it's magically fixed. Coolant flow blockage is the most likely. This is something very rare, but figured I would through it out there. I'm always late to the party, so the common/simple stuff has already been mentioned. Good luck.

Like Dion Sanders, I prefer both.

As in not riding it, just in case anyone thought he meant "valve cover".

If that doesn't get you first place at a bike show, I don't know what would.

I really hope this is a photoshop. If not, that is likely the ugliest BB in existence. If the movie Deliverance was made into a motorcycle.

That was so nice of the dealer to suggest replacing the whole transmission, ya know, just in case. FUCKING THIEVES! Most people have no clue how much they are getting screwed when they know absolutely nothing about their own vehicles.

How old do you think I am? 👴

Just guessing, but I think their "vehicles" are much less maintenance when competing for a, uh, "drive".

UPDATE: New terminals and ground cable didn't fix the problem, but helped. Brand new battery with 890 CCA, instead of the cheap 540 CCA battery that was in it, did the trick. Fired right up in 20 degree weather. Interesting how something can work (crank the engine), but not work (no start). Fancy electronics are great, until they're not.

Seen it. Even rode it around the parking lot. Takes some getting used to. I think I would rather build something with 2 Bird motors, and be able to ride/drive it in the rain without getting wet. Thanks for posting the video link. I had never seen that.

I retract my cost comparison statement above. Forgot about the front geometry equation. I've seen a side-car rig that had a front "swing-arm" setup with center-hub steering. Probably have to go that way to make it work. Come on lottery! Daddy needs a new Bird, I mean Birds.

LOL. Fortunately, not too close-up anyway.

They aren't in "like new" condition, but not corroded either. Just a dark outer layer of oxidation. No idea how old they are. I probably put them on years ago for my father-in-law, and just don't remember. Wire brushing the inside of the clamps, and the battery posts seem to do the trick, for now. The negative cable was cut and clamped into the lead terminal, so there is another place where a "marginal contact" can happen. Hence, new OEM clamps and battery. If I have any more trouble with it, I'll replace to the ECM relay. My son has no desire to learn much in the way of auto mechanics or electrical, so want to make sure he doesn't get stranded.

Every vehicle can be made fast with enough money. Two real Birds lovingly connected with some chrome moly tubing and fiberglass has got to cost less than a souped-up VW motor that would push that rig to the same 1/4 mile time.

Truck started just fine this morning, 36 degrees, so I'm thinking Furbird may be on to something with terminal material, and need for max voltage thing. New negative cable and positive clamp on the way (genuine Nissan). Gonna replace the battery too, just to be sure.

Thanks, Carlos. However, after reading "Beetle running gear", I feel like a beautiful women has just undressed in front of me, only to reveal a penis. Sigh.

Tomorrow morning is the first (sort of) cold weather test. The forecast low is 41 degrees. All I did was clean the terminals, and make sure all the bolts were tight on the battery cables. Wife works from home on Wed. and Thurs. so she can take him to school, if it don't start. If it fails, I'll get a new battery, and try again Thursday morning. I did order new Nissan battery clamps, and ground cable, so that will get done, anyway. Hopefully, this weekend, if they shipped them yesterday.