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I'm not sure what happened with the edit but my suggestion refers to what appears to be the plaster delamination and not the paint issue. For the paint, is it possible the base is too "lime" hot for the paint? If so it will need to be sealed for any acrylic to work. Do a ph test on the wall...

It looks to me like you have a keying (bonding) problem between the base and finish coat. If the base coat is still solid then your best option is probably a liquid key. If possible avoid using gypsum with lime and vice versa. At 100 years your wall is on the cusp and could go either way. Also...

36" tig welding rods might work but what about a broom? Cut it to length, put a point on the end and pound it into the ground. A push broom that also has a threaded hole on the top might offer interesting options also.

Another thread reminded me of this. Sometime, probably in the 70's Suzuki said something like this, for something to be "real" it has to have a least one piece of retrievable information. One example he gave that I remember was a point in space. I remember this example because of his...

Sorry, stall speed and rotational equilibrium. Accepting a steady RPM without a change in acceleration as rotational equilibrium where torque is zero.

I had many doubts about saying anything to a subset of a community about that community. My thoughts are not directed at any individual or personality but they are about my experiences. There is a long history of "experts" in the "public eye," but today with the explosion of social media or just...

As an agent for a European auto co. in the 90's I met and worked a lot with Jim Thornton. He's credited as the inventor of the Funny Car and torque cancelling chassis along with being the driver for Chrysler's Ramcharger Team and Head of their racing division. We spent a fair share of time...

No argument with you when referring to engines or vehicles with manual transmissions. A vehicle with an automatic transmission will have it's RPM, HP and torque relationship determined by the choice of torque convertor.

I long ago gave up on expecting anything from anybody. As far as your work, possibly life's work goes, it's up to you to choose its value and if it has any inherent need for dissemination as a public good. It's unrealistic though to expect the general public to subscribe to journals and expect...

There was a time when I probably would have agreed with you. If it wasn't for the journalists the health issues and needed services demanded because of Agent Orange would still be denied vets and now their children. Your subject matter experts squeezed their cheeks in fear of the backlash from...

The OP has never been back so addressing peripheral issues as they are brought isn't interfering with the OP's question. That aside, the OP's question was answered. Directly with a number like you've done? No. Where the OP can go to find the standards to the question, yes. In the US the...

Thanks for the replies but they were rhetorical questions. Poorly done I gather? In the 60's NASA gave it a name, Rotogravic Environment. Something I learned in a lecture along with this, In the early years NASA was protective of it's work being defined by popular culture rather then...

Does pack journalism existing have anything to do with a void left by scientists and researchers?

Sorry my fault. How does this induced gravity as you call it differ from actual gravity? What is it if not gravity?

Powertrain matching...

What's the speed of the station where the apple is dropped?

RacerMan12, If you have the time before going what are your caster angles? Lead? Also, what exactly are you referring to with "swing arm?" How long are the tracks your running on? Might as well ask about the banks too. It would also be helpful if your son, as the driver, can give an indication...

OK. Once again I thought he was building a car. I understand now he's only modifying one.

Wow, the OP hasn't been back but what does that matter? This is the OP's statement: Then these statements were added: It may have been wrong of me to think the OP meant car when he said car and for me that suggests a planned use. Had the OP said "experimental vehicle," I probably would...

They were proven wrong until they were proven right. https://www.scientificamerican.com/article/fact-or-fiction-lead-can-be-turned-into-gold/ Not a challenge here Jack. I'm with you on this. How's this for a definition, denying the need for ideologies is in itself an ideology.

Hadn't followed Autodesk for a long time so I looked it up. Seemed more then alright and it's a free download for students, hobbyists and enthusiasts. That's hard to beat. There you go Seth.

I fully agree with you about the significance and educational value of methodology as well as history and philosophy of science. So many people today—and even professional scientists—seem to me like somebody who has seen thousands of trees but has never seen a forest. A knowledge of the historic...

7 or 8 years ago I needed AutoCAD R14 which was long gone. I made a few phone calls and found a local architectural firm that sold me an old copy of theirs. For $100 I got the license and the Windows 98 machine the program was still on plus while I was there an old HP "D" size pen plotter was...

Jason, Thanks for the msg and I'll be answering soon but Chris and others will be helping you from here on. Remember Newton's 3 laws of motion. You're dealing with rotational or angular analogs but they still apply. Body at rest, body in motion stuff. What happens at TDC? It's also time to take...

Because for a lot of reasons iron is a better metal to cast and forge if needed then steel. Also anyone that has heard an engine with a steel block knows the noise it makes doesn't suit the family car.

JLD Co, Had a PM to answer so maybe I can help? There's a trend now with "barn finds" to leave vehicles as original as possible. I understand that and also understand why tires, plug wires and the like are replaced for safety. Rubber deteriorates. For some reason the harmonic balancer is usually...

An engine you have an affinity for is a good choice. For the graph comparison I was referring more to how "clean" yours is to Chris's actual engine. Chicken or the egg? Would working on units and values help him more to get to where he wants to go or would helping him get to where he wants to...

What a loaded question. First off, I for one an grateful for the quality of the vehicles we have today. Wasn't long ago a car with 100k miles was pretty much wore out and almost unsellable. That's the mileage of the first tune-up now. Some of us remember how it was when planned obsolescence was...

I was wondering if your simulation was for an actual engine or as you say, "a dummy engine?" It might be helpful if you could move on from the dummy engine to an actual engine you can compare your simulation model to. Both the simulation model you referenced here and the one I just added use...

Obviously you're right but I'm not sure it's necessarily so clear. 1. I am looking for a way to calculate the pressure in each cylinder of any Four Stroke Engine at any given crank angle of Cylinder One. 2. I have been trying creating a spreadsheet 3. One cylinder is fine, but trying to make...

I understand but as I said he's asked for an equation to do it all at once. He's also asked for a an existing equation which the equation would need to be universal for every engine. You can't assume the valve timing which effects pressure for every engine is the same. Can't assume combustion...

Just adding more kudos for the excellent answer. Adding your thoughts on a writers ability to organize and present information was an added bonus to your answer. Technical publications are often difficult and it's due to no fault of the reader while unfortunately the reader is wondering why...

Great input. Have you ever run into old prints that are spec'd with "As Needed?"

My first thoughts also but I don't think that's what he is asking. I think the question is; When cylinder 1 is calculated for pressure at a given crank angle is there an equation that will concurrently give the pressure at the remaining cylinders at that same moment. It's why I brought up offset...

From a quick search I found on a samurai forum, port and polish the exhaust the best you can. For the intake it's as Rouge One said except to get rid of any obstructions from casting. Leave the edges and the rough surface. This is typical for most heads. Turbulence on the intake helps...

Based on the crank angle alone, no, there is not an equation for pressure. There are many more variables involved beginning with if there is a piston offset or not.

Interesting. I know nothing about pneumatic starters but where and how it would be integrated into the ECU should be an enjoyable challenge. What are the benefits of going pneumatic? Are you really throwing the battery out? That raises a lot of questions.

https://www.dieselnet.com/tech/diesel_fi_common-rail_control.php

No problem. I thought it was a good paper for showing the extent of the interactive relationships going on in an engine. The extent of the answers to your question here a good example of the relationships. You can discuss the topic of torque with 5 different but knowledgeable people and become...

It seems your gear ratio question may irrelevant. The optimum ratio has more to do with the end user's preferences and not a formula. If you have the time consider temporarily adapting your lever design to a multi-speed bicycle, grab a chair, head someplace where there are a lot of people and...

http://r.search.yahoo.com/_ylt=A0LEVwl0TcBYZVsAGfFXNyoA;_ylu=X3oDMTBzdWd2cWI5BGNvbG8DYmYxBHBvcwMxMAR2dGlkAwRzZWMDc3I-/RV=2/RE=1489026549/RO=10/RU=http%3a%2f%2fwww.seas.upenn.edu%2f~cse400%2fCSE400_2005_2006%2fPhillipsSaris%2fFinalPaper.pdf/RK=0/RS=9H190RVZ8RpLATbnMAifNFD3REQ- [Broken] The link...

There are a number of ways used to control pressure. Isn't the most common to return the fuel to the tank?

Turbo lag is the result of using an engine with two torque curves. BTW, seldom mentioned for some reason but superchargers have their lag also. Both take time to spin up and effect the load on the engine. Examining the torque curves of an engine shows there is not an appreciable power loss...

Sounds like a great project and you're getting some great help. After reading the thread I have some questions if you don't mind. First I'm unsure of the lever design as described. I may have missed this but will power be delivered on both the forward and back strokes of the lever or only in...

Very impressive

That makes a world of difference. Why didn't you mention disposal? A metal shear will work or your gator action. Bear in mind you will be crush cutting fiberglass which can be messy. Would it be possible to heat the blades to soften and fold them? Again, a materials used issue.

My 2 cents. When you're reading what's in the journals related to your discipline, is what's grabbing your attention coming from academia or the private sector? That's probably not going to change and might offer some direction.

Dirk, I think you've missed the most important points of my post. I doubt you will be able to get a shear to reliably cut your blades. A metal shear is the closet cutting machine to a guillotine I can think of. Without any consideration to the materials used it's the shape of the blade that...

Remember there is Brake Horsepower (BHP) and Wheel Horsepower (WHP). BHP is measured at the flywheel and WHP is measured at the wheel(s). WHP averages about 15% less than BHP. The difference is due to the rotational mass of the drivetrain. Rotational force is what?

I can't suggest any actual studies but it's hard to believe it isn't out there. What I have seen is documentaries comparing the old to new. Particularly I'm thinking of a documentary I saw on joinery used in Japanese construction through time and how the study of techniques from the past are...