So How Does My Air Conditioning System Work Anyway?

It’s the first hot day of the summer. Uncomfortably shifting in your seat, you turn on that long-neglected AC knob, only to discover an unwelcome blast of warm air streaming out from the vents. A bad situation made worse: that’s when you turn to us—your air conditioning service and repair headquarters. Did you know that without regular maintenance an air conditioner loses about 5% of its original efficiency per year? This means that without proper maintenance, your air conditioning unit may be performing as poorly as other models that are years older! But there is good news: you can still recover most of that lost efficiency. Schedule an appointment with one of our factory-trained professionals—we understand all aspects of AC repair, from modern computerized components to environmental disposal concerns. Today’s AC systems are fairly complex and new improvements are always being initiated. That’s why you need to turn to us, the qualified source for everything related to your air conditioning system. The following is a brief schematic of some of the basic components that comprise this system:

Compressor:
  • The compressor is a belt-driven device that derives its name from compressing refrigerant gas and transferring it into the condenser. While basically acting as a simple pump, the compressor is the core of your vehicle’s air conditioning system.
Condenser:
  • The condenser’s primary function is to cool the refrigerant. It is a heat dissipating apparatus that radiates heat released by compressed gases and condenses them into high pressure liquids. The location of your condenser depends on how new your car is, but typically it’s found at the front of the vehicle, directly in front of the engine cooling radiator.
Receiver (Drier):
  • The receiver is a metal container that serves as a storage receptacle for the refrigerant. It’s also referred to as a drier because it absorbs moisture from the refrigerant and filters out particles of debris and harmful acids that would otherwise harm your AC system. Commonly located on the liquid line of the AC system, you should change your drier every 3-4 years to ensure quality filtration and prevent any damage caused by these detrimental chemicals.
Orifice Tube/Expansion Valve:
  • The orifice tube (also known as the expansion valve) is a controlling mechanism that regulates the flow of refrigerant throughout the system. In addition to this, it also converts high pressure liquid refrigerant (from the condenser) into a low pressure liquid, so that it can enter the evaporator. Generally located at the evaporator inlet, the orifice tube could also be found between the condenser and the evaporator, or in the outlet of the condenser.
Evaporator:
  • The evaporator is designed to remove heat from the inside of your vehicle; therefore it’s a heat exchanger that’s vital to your vehicle’s AC system (not to mention your comfort). The evaporator allows the refrigerant to absorb heat, causing it to boil and change into a vapor. When this occurs, the vapor is removed from the evaporator by the compressor, cooling your car and reducing humidity. Because the evaporator houses the most refrigerant in this heat transfer process, it is the most susceptible to corrosion by harmful acids. Usually this damages the evaporator beyond repair, which is why it’s imperative you see us to prevent this from happening.
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Currently Finishing a “Mild” Chassis Restoration 1970 Corvette

The task here was to “spruce up” the chassis and some underbody components on this 30K mi 1970 Corvette still owned by the original owner. We were careful not to eliminate any original details that were important to a “survivor” like this one. We believe in restoration and preservation so we used epoxy paint and metal treatments so this finish will last for many years.

 Right Rear Wheel Well “Before”

Right Wheel Well “After”

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New Computer Diagnostics All BMW and Mini Platforms

BMW Technical Specification….

BMW Technical Specification

MINI Technical Specification

The Autologic diagnostic tool for BMW vehicles is without doubt the most comprehensive tool to be made available to independent BMW specialists.

Autologic BMW is unique in offering full fault code read and re-set, full component activation, electronic control unit procedures, clearing and setting of adaptation values, full coverage of (ECU) control units coding, full programming capability including engine control modules and transmission control modules, adjustment of engine idle, real-time reading of all dynamic data, procedure for engine and immobiliser alignment, procedure for trial substitution of control units and procedure for the fitting of BMW accessories. Car/Key Memory Function for personalising vehicle.

Models covered by Autologic BMW include:

  • 1 Series: E81 / E82 / E87 / E88
  • 3 Series: E90 / E91 / E92 / E93 / E46 / E36
  • 5 Series: F10 / F11 / E60 / E61 / E39 / E34
  • 5 GT: F07
  • 6 Series: E63 / E64
  • 7 Series: F01 / F02 / F03 / E65 / E66 / E67 / E68 / E38 / E32
  • 8 Series: E31
  • X Series: X6 (E71 / E72) X5 (E70 / E53) X3 (E83) X1 (E84)
  • Z Series: Z4 (E89 / E86 / E85) Z3 (E36 / E37 / E38) Z8 (E52)
  • M Series: M3 / M5 / M6 / X5 M / X6 M / Z4 M / Z3 M

Models covered by Autologic BMW MINI include:

  • R50, R52, R53, R55, R56, R57, R60
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For Sale 1966 Corvette Coupe -Big Block 427/425hp BEAUTY!

This matching numbers Corvette Coupe was delivered new with the Big Block 427c.i./425 hp, solid lifter and the M-21 4spd transmission. The car remains very original and retains all of the original body panels.  It was restored in the early 90’s to Concours condition and shows minimal wear since then. The Trophy Blue exterior color was available in 1966 only and is quite rare to see. The paint is extremely shiny having only minimal flaws. Interior is black with newly redone black leather seats which enhances the wonderful driving characteristics of this beautiful, FAST ‘Vette. The teak steering wheel is an excellent reproduction. The car is additionally optioned with cast aluminum knock off’s wearing  period correct, Gold Line tires, Soft Ray windshield and glass,M21 4 speed transmission, power steering and power brakes. Included with the purchase is an extensive file of receipts and history.  This Big Block Corvette rides and drive excellently and shows pride of ownership throughout its history. It is especially beautiful in the rare factory Trophy Blue color. See the details on our website http://www.techplusautomotive.com/carsforsale

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The Restoration of My 1955 Mercedes 300SL Gullwing

Welcome! Let’s start with the best advice you will ever get. First of all, if you are reading this because you are actually thinking of restoring a Gullwing and if you have not restored many other cars this is not the one to start on!  I have restored many cars over my 54 years starting in high school.  This was not by choice but rather by necessity; if I wanted a car anyone else (e.g. girlfriends) would be seen in, I had to make it that way. Second, but of no less importance, make sure you have the temperment for the a process that will keep you wondering what you were thinking about when you started it for the seemingly endless time it will take to get the project done. Third, make sure your budget on a monthly basis will support the project so it can be done in a reasonable time.  Finally (the list is actually much longer) no matter how carefully you estimate the time and budget required, triple the time and double the budget and hope you are still not wrong by much!

What Are You Starting With?

My experience includes lots of cars I wish I still had but paying my way through Ohio State University required parting with just about as many cars as you can imagine.  You see rust guaranteed the untimely demise of many cars because of the regularly salted roads in the Great State of Ohio! There was a plethora of broken down British iron like MG, Triumph and Jaguar available for various reasons including the proximity of the university. It was really a perfect combination for someone with budding mechanical abilities.  “Gully” looked like this in 1999 when I bought her; beautiful but badly or incorrectly “restored” in virtually every aspect!

(Click Photo to Enlarge)

PART 2 COMING SOON! Click for more photos on Facebook!

 

 

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2001 Porsche Boxter S – What is bedding-in?

  Bedding-in is the procedure in which new brake pads and rotors are mated together to achieve maximum stopping efficiency.

2001 Porsche Boxter S

2001 Porsche Boxter S

  Most drivers are unaware that panic stops initiated before the bedding-in period expires, greatly affect the friction and wear coefficient. Porsche recommends a 200km bedding-in period for new brakes on their Brembo performance package.

2001 Porsche Boxter S

2001 Porsche Boxter S

  Of course in case of an emergency, there is an exception if you have no other choice than to slam on your brakes. Make certain that your service technician(s) follow the brake rotor manufacturer instructions on how to identify and handle specific coatings and anti-corrosion treatments that are often put on the rotor at time of manufacture. If you have any questions about your high-performance brakes, feel free to contact us at Tech Plus Automotive in Scottsdale, Az.

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Fuel leaks can be deadly…but not if we can help it!

2001 Land Rover Discovery II. Customer Concern: Fuel smell coming from cabin. Cause: Fuel leak at fuel pump sending unit assembly. Correction: Replace fuel pump assembly. Test system for proper operation.

Tech Plus Land Rover

Tech Plus Land Rover

If this is not how it is spelled out to you, you are getting your vehicle repaired at the wrong facility. A repair like this put off too long could be disastrous. Let us service and repair your Land Rover, and even wash it for you if you don’t mind. Here at Tech Plus Automotive in Scottsdale, Arizona.

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