Unofficial Off Topic Thread

[sk47]

Hello; Did a search and found a link to at least one episode.

Bing Videos

I have not worked with the link to see if the other episodes can be had???

Hello; A different link.

my mechanics restoration - Search Videos

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[Balr14]

Bing videos are just YouTube with additional layers. You might like these:

https://www.youtube.com/@I_Do_Cars
https://www.youtube.com/@TheDavidFreiburger

There's another one on YouTube, but I can't get the link I type to work. It's called LegitStreetCars

 

[sk47]

Hello; I finished the episodes available of MY MECHANICS today. This guy must have a hell of a shop. I do not know if some parts fora 74 Z car are hard to find or he just likes to make his own. He made a ball joint ball from rod stock. He made bolts and nuts. I guess I had known such can be done but had not seen it done before. The episodes stopped with rebuilding the rear end in season one.

 

[sk47]

pro or con of having both port injection and direct injection in an engine? - Search

NOTE- go to the second video listed. For some reason I cannot post it separately by itself.

hello; I was talking to a friend about the new straight six dual turbo Ram engine for a future pickup. He is a lifelong MoPar buyer. We got to talking direct injection. I mentioned that some engine builders use both direct and port injection such as the Coyote V8 in the Mustang and the boxer engine used by Toyota/Subaru in their sports car.

i got the part about carbon buildup on the intake valve as being a problem with direct injection but there is more to be known. The link above is among the best explanations of advantages & disadvantages of the two types of injection. it also gives some detail as to why "DUAL" injection is a good overall fix.

Picking a key thing for Coyote owners is the high RPM's that engine can run being a reason for dual injection.

I also think I now understand something which has bothered me for a while. Maybe. Some members have posted images of scored cylinder walls in a Coyote. I now suspect the direct injector spraying high pressure fuel may have washed oil off the cylinder walls as in illustrated in the video.

The video is over 20 minutes but worth the time to me. I knew much of what was presented but watching did straighten out a few things. Knock vs preignition for one thing.

 

[Balr14]

A bad injector can cause bore scoring. A properly functioning direct injector will atomize fuel better than any other form of fuel delivery. You seem to have some interest in learning more about engines. If so, you should watch this:

 

[sk47]

You seem to have some interest in learning more about engines. If so, you should watch this:

Hello; been interested about how cars work since a child. I can recall when around nine or ten sitting n watching an uncle change the brake shoes on a set of drum brakes. I have often thought about (decades later) him blowing away the dust with his breath. This was in the 1950's back before they took asbestos out of brakes & clutches.

I know of Freiburger. I have almost all the ENGINE MASTERS episodes saved.

Thel link I referenced in a recent post stated in early DI systems the nozzle may have been pointed at cylinder walls. He implied later iterations cured that fault.

 

[Balr14]

Thel link I referenced in a recent post stated in early DI systems the nozzle may have been pointed at cylinder walls. He implied later iterations cured that fault.

Interesting you should mention injector nozzle orientation. It reminds me that In the latest LegitStreetCars posting, it appears the spark plug must be pointed at the injector. If it's clocked too far from injector it can cause serious damage. Mercedes has service bulletins about this and it may result in denying warranty claims. I don't trust any car that uses an aluminum block with no liners, so this seems like a manufactured excuse to deny claims.

On the other hand, if you buy an unlined aluminum block engine, you should know they can have failures that rarely affect lined engines. So maybe it's justified.

 

[sk47]

AA2bkjES?ocid=msedgntp&pc=U531&cvid=6a97058546294c89b201577d889a9e6c&ei=98

Hello; Saw this featured on a PBS program a couple weeks ago. The idea is to spray a coating onto parking lots and i suppose roads. in the PBS program the test was done in a large parking lot. The white coating does not absorb sunlight and change it into heat energy within the surface of the pavement the way a black surface will. DUH- touch a black car and then a white car out in the sun.

Some folks seem astonished that the energy within the sunlight simply does not go away. The reflected sunlight off a white surface still has energy and gets absorbed by air molecules and anything else the reflected light happens to land on. Again DUH. Back in my youth I was a spelunker. Had a few carbide lamps which were the main light source used.
The lights had a brass body with a screw on cup into which you put some dry carbide pellets. Add a bit of water and a chemical reaction yielded acetylene gas. The gas exited a tube near the center of a chromed reflector and could be sparked into a bright flame. That reflector (concave maybe) focused a nice beam. The cabide lamps were more reliable than battery lights and candles of the time (1960's) You could easily recharge them. I spent nearly three days in a cave near Pennington Gap VA using such a light. I carried candles & a flashlight as well.

Back to the point. outside in the sun I could focus sunlight off that reflector to ignite dry stuff with the focused sunlight. Back some years ago I had new shingles put on my roof. I picked a very light-colored shingle over the traditional black. Kind of wish I had gone full white.
My house is a dark red brick. in the evening after the sun goes down the side of the house facing the afternoon sun radiates heat well into the night. i have considered painting the brick white but know such cannot be undone.

 

[IPOGT]

AA2bkjES?ocid=msedgntp&pc=U531&cvid=6a97058546294c89b201577d889a9e6c&ei=98

Hello; Saw this featured on a PBS program a couple weeks ago. The idea is to spray a coating onto parking lots and i suppose roads. in the PBS program the test was done in a large parking lot. The white coating does not absorb sunlight and change it into heat energy within the surface of the pavement the way a black surface will. DUH- touch a black car and then a white car out in the sun.

Some folks seem astonished that the energy within the sunlight simply does not go away. The reflected sunlight off a white surface still has energy and gets absorbed by air molecules and anything else the reflected light happens to land on. Again DUH. Back in my youth I was a spelunker. Had a few carbide lamps which were the main light source used.
The lights had a brass body with a screw on cup into which you put some dry carbide pellets. Add a bit of water and a chemical reaction yielded acetylene gas. The gas exited a tube near the center of a chromed reflector and could be sparked into a bright flame. That reflector (concave maybe) focused a nice beam. The cabide lamps were more reliable than battery lights and candles of the time (1960's) You could easily recharge them. I spent nearly three days in a cave near Pennington Gap VA using such a light. I carried candles & a flashlight as well.

Back to the point. outside in the sun I could focus sunlight off that reflector to ignite dry stuff with the focused sunlight. Back some years ago I had new shingles put on my roof. I picked a very light-colored shingle over the traditional black. Kind of wish I had gone full white.
My house is a dark red brick. in the evening after the sun goes down the side of the house facing the afternoon sun radiates heat well into the night. i have considered painting the brick white but know such cannot be undone.

To your point, lately, there’s been a fashion trend where people are painting tile roofs black. They think it looks classy. It hides a roof that needs to be cleaned, but most of all the heat load is obviously increased within the dwelling and the roofing materials will likely break down sooner due to the temperatures.
it’s ridiculous, but I feel as soon as people figure out the obvious, it will be a short lived trend.

 

[HoosierDaddy]

My house is a dark red brick. in the evening after the sun goes down the side of the house facing the afternoon sun radiates heat well into the night. i have considered painting the brick white but know such cannot be undone.

Plant trees, tall bushes, vines. I did that for just my AC units on cement pads and cut my electric bill drastically.

Or hang huge sheets of anything hangable and roll them up remotely when you want to stare out the windows, etc..

 

[Balr14]

I saw that PBS documentary. Miles O'Brien always has interesting and offbeat articles.

 

[sk47]

I saw that PBS documentary. Miles O'Brien always has interesting and offbeat articles.

Hello; Thank you. It was Miles O'brien. I did not recall.

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