Author Archives: David Zhang

About David Zhang

David Zhang https://plus.google.com/100859094862564923225?rel=author

Five ways to tear packing tape without any tools

https://youtu.be/289hMnHQv4g

Maybe you have attempted to tear packing tape with your bare hands, but failed big. The more you keep wanting to break it and the angrier you are, the harder it may be to break it, and it is so embarrassing especially if your friends are watching you.

Sometimes you just have zero tools available to you when you really want to tear the packaging tape. Based on different methods and different tapes, the reasons for failing to tear it successfully may be different. This video will show you some methods and demonstrate the precise steps and conditions to successfully tear the tape without any special tools.

https://twitter.com/RealGeniusAsian/status/1178047806608568320

Tracy Arm fjord in Alaska near Juneau

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Tracy Arm is a fjord in Alaska near Juneau. The most common access is by boat using Stephens Passage and entering Holkham Bay and Tracy and Endicott Arms. Large tour vessels and smaller commercial cruise boats frequently use Tracy Arm as a tour destination or as a stop along their normal tour routes.

During the summer, the fjords have considerable floating ice ranging from hand-sized to pieces as large as a three-story building. During the most recent glaciated period, both fjords were filled with active glaciers.

The twin Sawyer Glaciers, North Sawyer and South Sawyer, are located at the end of Tracy Arm. The wildlife in the area includes black and brown bears, deer, wolves, harbor seals, and a variety of birds, such as Arctic terns and pigeon guillemots. The mountain goats, which are usually found in the higher elevation areas, have been seen near the base of Sawyer Glacier.

Princess departs from San Francisco. This is part of a 10-day Alaska cruise.

The description from Princess Cruise’s website:
Named after Civil War general Benjamin Franklin Tracy, this narrow fjord is located approximately 50 miles southeast of Juneau. Breathtaking Tracy Arm extends over 30 miles long, with nearly a quarter of its area covered in ice. In fact, it encompasses some of Alaska’s largest glaciers, including the twin Sawyer glaciers, which often expel enormous chunks of ice into the waters below in a magnificent process known as calving. During the summer when Princess ships visit, icebergs float along the surface of the glistening water in an array of sizes, from just a few inches up to three stories wide.

Protected within the Tongass National Forest, Tracy Arm Fjord is a haven for wildlife. Black and brown bears, deer, wolves, harbor seals, mountain goats and a variety of seabirds have been spotted in the area.

As you glide through the pristine fjord, you’ll first pass by a lush forest where a number of beautiful waterfalls cascade down, and then you’ll be treated to views of snowcapped mountains and blue-tinged glaciers more spectacular than you could ever imagine.

The 4K version is here:

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Change engine oil quickly, safely and correctly for a Subaru

https://youtu.be/DLcraYvfldI

Did you know if you have your oil changed at a non-dealer garage, they might install the wrong oil filter? Last time I had my Subaru oil changed at a non-dealer garage, they installed a wrong filter because it has the wrong bypass pressure for a Subaru. So it is important that you use a correct filter.

Most of the time going to a dealer for service is more expensive. So in this video I am showing you the easiest way to change your oil in under 20 minutes. You want it to be quick, but also safe. For a Subaru Forester, there is no need to jack up the car, the SUV is high enough, and the oil drain plug is within arm’s reach from the front. If your head is too large or your car’s clearance is too low, watch my other video on how to raise your car safely without a jack:  https://youtu.be/KwJRQKDszyo

You need to loosen the drain plug first. If your arm is not strong enough, watch my other video on how to use your foot to loosen it:
https://youtu.be/C074os54sQM?t=97

I put an oil pan in a box. The box will catch oil splashes and it also lets me adjust the pan under the car more easily. If you don’t have an oil pan, watch this video about how to make a zero cost oil pan:
https://youtu.be/aPYtICiotEc?t=26

My oil filter socket fits the correct oil filter from Subaru, but it is too small for the Metrostreet filter. If you don’t have an oil filter wrench, watch my other video on how to remove the filter without purchasing a filter wrench:
https://youtu.be/QPVs03aZjmc

Lastly, when you pour oil, there are various ways to do it without using an oil funnel:
https://youtu.be/QHIiFG0FlSw

Best car battery troubleshooting, correct diagnosis and proper fix with certainty

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What is the difference between a Hydrometer and a load tester? Can epsom salt recondition a battery with sulfation? Depending on what is the problem and what tools you have, there are different ways to resolve your problem. Some of these may work for you, some won’t, this video will explain to you the “why” part, i.e. what are conditions under which the solution will work for you and what are the limitations.

We propose various steps for you to diagnose your car battery problems, and suggest alternative ways to test if you don’t have the best tools.

Diagnose car battery problems & find proper fix, everything you need to know about a battery

Note, with my old cars, when I did not have a voltage meter, I used the method of disconnecting the battery when the car was running. But now new cars may have more sensitive devices, and since the voltage may spike without battery connected, it may cause some electronics malfunction. So it is safer if you use a voltage meter (if you have one) instead.

We should also remind you that the charge-discharge cycle will shorten the battery life. When your battery passes hydrometer specific gravity test but fails the load test, you have no other option but to perform the charge-discharge cycle. But if it is something other than this condition, don’t cycle unnecessarily.

When you need to replace your battery, if a bigger battery costs the same as the smaller one, you can choose the bigger one even if it is wrong sized, check out my other video on how to replace with the least cost: https://youtu.be/hymGI0ra7gE
A bigger battery may mean either the dimension is bigger or more importantly the weight is higher which means it has more lead.

Another important factor is the price. Big stores such as Costco, Walmart, Home Depot have high volume, and can sell the same quality items at lower price. The smaller stores auto specialty stores such as AutoZone, O’Reilly, Pepboy may give you better service, but higher price for commodity products.

In addition to the weight, sizes, and prices, you should also pay attention to the number of years warranty the battery provides. Note that free replacement is more valuable than the pro-rated “warranty” which may only take about a few bucks off the price of the new one, if you buy it from them again.

Below some samples prices:

Walmart:
$50 ValuePower brand: 12V car battery with 1-year free replacement warranty.
$94 EverStart Maxx brand: An included five-year warranty (three years free replacement and two years prorated) provides peace of mind.

homedepot:
$89 Exide brand. SPRINTER 12 volts Lead Acid 6-Cell 35 Group Size 550 Cold Cranking Amps (BCI) Auto Battery
2-year free replacement
$99 Exide brand. SPRINTER MAX 12 volts Lead Acid 6-Cell 35 Group Size 650 Cold Cranking Amps (BCI) Auto Battery
3-year free replacement

Costco:
$79 Interstate brand: three years free replacement.

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Best Bidet: How to Select, Install and Use a Bidet

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This video starts with comparison of different kinds of bidets and will show you the best way to install a bidet on a conventional toilet. Installation will take about 20 minutes. We’ll walk you through our detailed 10-step instructions. It is actually quite easy, requiring no special skills at all. Even though each owner’s manual comes with some instructions for you to follow, since many popular brands have very similar products, we will discuss some overall principles and the strategies so that this video can be applied to your situation. The sample product used in this video is a Biobidet model BBC-70 simplet.

A bidet is far better(cleaner and healthier) than toilet paper, because a bidet will rinse away fecal residue and remove almost all odor. Paper won’t do that. It will bring comfort to people with hemorrhoids. But do you know how to use it? Watch to the end of this video to get the answer.
Bidet Test
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