Tech

Vehicle Preparations before and after a trip

Road trips don't require much preparation, but 4×4 trips off the beaten track are a different thing altogether. There is no help available off the highway, so the vehicle has to be in good shape and the driver must be well prepared to deal with any eventuality. Of course, the idea is to avoid breakdowns in the first place, so a number of things have to be looked at when setting out on a 4×4 trip out into the wild.

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April 2, 2008, by Khalid Omar & Imad Ali | Comments

The ultimate 4x4 site

This page has the ultimate collection of 4×4 links:

WJ's 4×4 & Offroad Homepage :: For the persistent, no road is impassable.

Very detailed and informative articles & links on all things 4×4. It would take months just to go through all the linked material...

August 16, 2006, by | Comments

Jeep Rebuilders Redux

There are a few Jeep workshops in Karachi who do world class restoration work. I had known that many of their jeeps from Karachi end up abroad, with one great example in the Smithsonian Museum in the World War II section, and another in the New York Museum of Arts. Recently I found out that there was even a documentary made by an American channel about the local jeep rebuilders:

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May 17, 2006, by Khalid Omar | Comments

Vehicle Maintenance 101

There are some good introductory articles on vehicle maintenance on Autoblog.

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April 11, 2006, by Abid Omar | Comments

How well do K&N air filters work?

This is a question which has been long debated. There are those who swear by K&N filters, and many who swear at them. From Autoblog:

Fortunately, a Duramax owner tired of the lack of scientific evidence pursued a path of testing that eventually ended with a lab performing the ISO 5011 procedure on a number of replacement air filters.

Read the full test results here. The gist of the tests is:

The K&N and UNI filters were far less efficient at trapping dust, and note that they lose their flow advantage after filtering about 180 grams of dust.

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October 6, 2005, by Khalid Omar | Comments

Free Wheeling Hubs: Why Have Them?

Interesting article on free wheel hubs. There are two opposing camps about free wheel hubs, and never the twain shall meet. After many years driving a Willy's jeep with permenantly locked hubs, I've never had a single problem with the front axles, or with mileage, loss of power etc.

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June 14, 2005, by Khalid Omar | Comments

Comparing Diesel Types

An interesting overview of marine diesel engines, also applies to car engines.

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June 5, 2005, by Khalid Omar | Comments

Fluid selection

Good article on oils: Fluid Selection:

Today, the automotive service industry is faced with a daunting variety of fluids. One type certainly does not fit all applications. This article summarizes some of the most common fluids and the unique OEM specifications that have appeared over the last 10 to 15 years and that are in use today.

May 13, 2005, by Khalid Omar | Comments

Toyota Technical Articles

These are training materials used by Toyota. I've collected them from various places on internet. They are a very good introduction to EFI engines in general. Recommended reading for anyone planning to install an EFI engine, or just wanting to know more about how they work. To view them, you will need Adobe Acrobat Reader.

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April 26, 2005, by Khalid Omar

Diesel Motorcycles

We've been saying it for years, the future of vehicles is likely not hybrid, it's TDI - Turbo Direct Injection Diesel. Thunderstar seems to agree, having just developed a three-cylinder, 1200cc, TDI motorcycle. Weighing in at 455 lbs, ready to roll, it produces 90hp and 150 ftlbs of torque in stock trim.
Thunderstar TDI Motorcycle

The engine is a VW 3 cylinder diesel (from the VW Polo), recast to fit the motorcycle. Apparantly these things don't go very fast, the current speed record for diesel motorcycles being 85.46mph. (Diesel KLR650 Sets Speed Record)

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April 15, 2005, by Khalid Omar | Comments

Pass the lab coat

New passenger-car diesel engines from the Ford-Peugeot Citroen alliance will require workers to be trained to work in a sterile environment. The common-rail diesel design, requiring all cylinders to be injected with fuel at the same pressure, needs a dirt-free environment to ensure there is no blockages in the fuel lines.

"With the old tractor-type diesel engines it didn't matter too much about a bit of dirt, but these new engines have much less tolerance of any dirt particles, especially in fuel lines and the fuel head," a Ford U.K. spokesman says.

Such attention to detail will require workers in high-tech environments to labor under sterile conditions and powerful lighting. They will be required to wear white coats and protective footwear.
>> Pass me the lab coat; I have diesel engines to build

Whatever will local mechanics do? Especially when the majority of workshops in this country look like this? Common rail diesels are now becoming common in all the new diesel cars and suvs. A 28,000 psi encounter with a bit of dirt is not going to be pretty...

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March 11, 2005, by Khalid Omar | Comments

Hot under the Bonnet

Proper cooling for an engine is like oxygen for us - you don't care about it until you're not getting enough of it. That's why cooling systems tend to go unnoticed until something bad happens, usually accompanied by a lot of huffing, hissing and steam.

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February 26, 2005, by Imad Ali | Comments

Jeep Re-builders

There was a time when Jeeps were only owned and maintained by the either the Landlords for a visit to the lands or shikari's (hunters) or contractors engaged in construction/mining in remote areas. With the introduction of Pajero’s and Land Cruiser’s a more comfortable approach to the wilderness was available to the not so outdoors kind. Pakistan Army, the single largest possessor of Jeeps gradually phased out the American Legend and replaced its fleet with Toyotas, the auctioned Jeeps found their way in the driveways of enthusiasts, sparkling and shining re-built by a few Master professionals.

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May 15, 2004, by Taimur Mirza | Comments

Motivation Equation

1KZ or 2LT, 3B or 13BT, 1C and 2L, confusing numbers and alphabet game or engine designations, who knows... it might as well be Greek for those who aren't engine savvy. If you are even considering building a Jeep in Pakistan, you should know the various engine choices available to you. Read on and enlighten yourself.

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October 15, 2003, by Imad Ali

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