How to Bulletproof Your Nissan Patrol’s ZD30 Engine

If you own a Y61/GU Nissan Patrol with a ZD30 3.0ltr turbo diesel engine, these are invaluable tips to help you increase the life expectancy of your engine……

The ZD30 engine has suffered a poor reputation for premature failures including melting/cracking pistons and overboosting, largely due to some common issues. These engines run a variable vain turbocharger with boost controlled by the ECU, and to meet stringent european emission standards run an exhaust gas recirculation (EGR) system. Running fairly high boost levels from factory causes the ZD30 to be a heavy breathing engine and oil vapour is forced into the inlet tract contaminating the Mass Air Flow sensor (MAF), working its way through the intercooler and into the inlet manifold. The EGR system can turn this oil vapour into a thick tar like consistency, blocking inlet runners, which in turn can lead to some cylinders running rich and some lean, resulting in melted pistons…

What can be done to maximize engine life?

1. Fit an oil/air seperator (catch can). This will reduce the amount of oil vapour/blowby entering the air inlet system.

2. Regularly clean the Mass Air Flow (MAF) sensor located in the inlet pipe near the airbox. A contaminated MAF sensor can cause faulty signals to the ECU resulting in overboosting. Suitable MAF cleaners are available from your local auto parts store.

3. Fit a boost gauge and an exhaust gas temperature (EGT) gauge. Whilst this won’t prevent anything, it will give you a heads up of any warning signs.

4. Fit a free flowing exhaust system, this will lower EGT’s dramatically. We fit and recommend 3″ mandrel bent exhaust systems.

5. Never fit a “Chip” without doing the exhaust system as well. A chip will increase the amount of fuel into the engine, increasing your exhaust gas temperatures, so a free flowing exhaust system is required to lower the EGT’s. We use and recommend Steinbauer and DP chips.

6. If you are noticing boost pressure spikes over 20psi (upto 25psi is not uncommon), fit a boost limiting device such as a dawes valve. These can be set so that the turbo can’t boost over say 18psi…… This is a bandaid not a cure, as their will be other issues causing the overboosting.

7. If your intercooler looks as though it has oil leaking from it, it can also leak boost pressure. Replacement units where the tanks are welded on instead of the factory crimp fittings are available.

8. Have your inlet manifold removed and cleaned. We have seen inlet runners closest to the EGR almost 50% blocked.

9. Although illegal, their are EGR blank off kits available.

10. ZD30’s need regular oil changes, every 5000k is recommended.

If you are not interested in GCLUB , then you have already missed a lot.

Where To Get Elusive Auto Parts

In some cases you may find it hard to get auto parts for your car. This is usually common if you own a classic car. The reason as to why you might find it hard to get your parts of interest is because many stores tend to stock parts of only the most popular vehicle models.

While this is usually the case, there are a number of things that you can do to ensure that you find the elusive auto parts for your car. Here are some of the things that you can do:

Join car clubs and online car forums

Joining a car club ensures that you are in touch with people that you have several things in common with. Here you will meet people that might be having the same problems as you. When you meet someone who owns the same car as you, you must ask him/here where he gets his parts.

This way you will easily learn some of the places where you can get your parts. The members in the club might also be auto part sellers; therefore, you will easily get parts for your car.

Finding an auto club is easy. This is because all you need to do is to visit the Ads section in car magazines and you will most likely find a car club in your area. You can also search online. Here you need to look at the authoritative websites and blogs.

Hunt online

You should use the internet to your advantage. When online you should visit some of the online auto stores and see what they have to offer. If you find good online stores, you should bookmark them and visit them regularly to check for any updates.

It’s also recommended that you contact the online stores and ask them if they have the parts that you are looking for.

Visit scrap yards in your area

If there is a scrap yard in your area, you should make an effort of visiting it. This is because you can easily get good quality parts at very low prices.

Get a newly manufactured part

If all your efforts to find auto parts have hit a rock, you should consider getting newly manufactured parts. Here you need to visit manufacturing companies and ask them to custom make the parts for you.

While you will get high quality parts using this method, you should be prepared to pay hefty prices.

Advantages of Using Car Wreckers

Disposing of old automobile parts and accessories is a difficult task that relies on innovative technology and expertise. Car wreckers have the heavy-duty tools and know-how to dismantle the wide range of vehicles that have no future practical purpose. Many of the vehicles in these yards are old, no longer operable, severely damage, or deemed to be a total write-off by insurance companies.

The process of breaking down a car and using or recycling the parts is much more favorable than using a landfill site. This not only gives an economic advantage, but also has the ability to offer environmental benefits.

Here are several benefits that relate to using the services of the car wreckers:

Saves you money

Car wreckers generally have a long list of genuine vehicle parts in stock that can be purchased at a very attractive price. Buying second-hand parts from a yard has the potential to save 50% to 90% of the store-bought prices. Before crushing the body of the car the reusable parts are removed with the intention of selling on in the future. So, for the car restorers, gear-heads, or others planning vehicle maintenance, repairs, or an upgrade, a first stop to source the required auto parts or accessories can include the car wreckers.

Environmentally friendly

Car wreckers offer the more eco-friendly solution to help dispose of an old or neglected vehicle. Cars left on barren land or landfill sites will at some point start to leak harmful chemicals or pollutants into the ground or the atmosphere. This will result in long-term damage to the local soil or water sources and make it difficult for the same ground to be used for other purposes in the future.

Nearly 76% of all parts in an automobile can be reused in another car or truck which is appreciated for its ability to give long-term benefits to the planet. Many of the salvaged materials from the wrecked vehicle are reused in the automobile industry. For instance, rubber sourced from an old vehicle can be recycled and used in the production of floor mats, gas pedals, and tires.

Earn a profit

For those planning to have their old vehicles removed by the car wreckers it is possible to get cash reward in return for some of the metallic parts inside the car. After dismantling a vehicle, the yards, rely on a high-powered magnet which has the capacity to easily collect every last piece of scrap metal which is resold to other companies that have a practical need for it.

In addition to collecting the metallic parts, the car wreckers can also drain the vehicle’s fluids like oil, coolant, and gas, which is sold on to other parties or reused in the fully functional vehicle.

Buy obsolete parts

With the speed in which automobile technology is progressing, it can be difficult to source certain tools, parts, and accessories which are deemed to be obsolete. So, for those searching for parts to fit the older vehicle model long out of production, it can help to get in contact with a local car wrecker company to see if they have the types of parts and accessories needed. Most of these services are likely to dismantle all makes and models of vehicle, so are more likely to have a greater inventory of old stock compared to the automobile shop.

In view of the fact that automobiles are one of the most recycled products, there should be no shortage of supplies need in the process of completing a future upgrade or renovation.

Insider Secret To A Show Car Paint Finish

Have you tried polishing a car by hand lately? If you have, you might think your car polish is defective when the real issue is your vehicle’s paint. That’s because automotive paint finishes have become much harder in the past few years, allowing them to last longer and resist scratching and chipping like never before.

The changes in paint technology, while very beneficial, have introduced a new problem for car owners. While it was possible to maintain automobile paintwork by hand just a few years ago, today’s new paint finishes make it nearly impossible. If your vehicle’s paintwork has minor scratches, swirl marks or water spot etching, you will need a buffer polisher to correct the problem. The good news is that the number one buffing machine for both home and professional use, the Porter Cable 7424, is very effective on even the most modern paint finishes, including the latest ceramic paints used by Mercedes-Benz.

The original Porter Cable Polisher and the new 7424xp are dual-action polishers. What this means is that the polishing head rotates (free-spins on its spindle) and orbits (powered by the motor) around the center spindle. A mass counterweight mechanism on the spindle dampens vibrations. This polishing action, often referred to as “random orbital” or just “orbital,” totally prevents symmetrical buffing marks, paint burns and the other types of automotive finish damage that people associate with high-speed buffing machines. That means if you use the polisher as intended it’s virtually impossible to damage your car, even with no experience.

This type of electric polisher closely mimics the motion of circular hand polishing. Imagine being able to make 2,500 to 6,000 tight hand circles in a single minute. That should give you a pretty good idea of how this machine does its job. Basically it works just like you do, only at super-human speed. Plus, it never gets tired!

If you have previously owned a car waxing machine that made a lot of racket, but did little else to fix the damage and restore shine, you will appreciate the brilliance of one of these buffing machines. It has all of the power needed to get the job done, yet it’s small enough and light enough that it’s easy to use.

The secret to using a dual action polisher with shining results is choosing the right polish and polishing pads for the job. Basically polishing pads come in three grades: cutting, polishing and finishing. A cutting pad is coarse and used to remove damage. A polishing pad has a bit if coarseness, but not much. It’s used to remove very minor damage and restore full gloss. A finishing pad is very soft. It’s used to polish without cutting and to apply waxes and glazes.

You must use an appropriate polish with each type of pad. Like the pads themselves, polishes have different grades of cut. A compound, for example, is a cutting polish. Compounds are rated by the level of sanding scratch they can remove. A compound designed to remove 2000 to 2500 grit sanding scratches will effectively remove swirl marks and water spots, whereas a product that can remove 1200 to 1500 grit sanding marks will remove fine scratches. If you can feel a scratch with your fingernail, you should remove it with 2000 grit wet and dry sandpaper before polishing.

If you’re confused about which polish to use to remove swirl marks, fine scratches and water spots, let me recommend Meguiar’s Ultimate Compound. It’s probably the best consumer grade product available today, and it’s easy to find at your local auto parts store.

After compounding to remove damage, you might think the finish looks great, but I recommend finishing off the job with a fine polish. Most compounds, including the new Meguiar’s product, will leave just a touch of hazing in the clear coat. All it takes to remove the hazing and restore a brilliant shine is a fine paint polish. I prefer and recommend Klasse All-In-One. It’s an amazing product that will produce a final finish that blows you away.

New automotive paints may be too hard to maintain by hand, but the solution is easy. A Porter Cable 7424xp gets the job done faster that you ever could by hand, and it’s a quality machine that will last a lifetime.

How To Get Great Fuel Economy Out Of Used Cars

While some complain that used cars are more expensive due to poor fuel economy, this is not always the case. There are forces at work in your favor. Most drivers have noticed that gas prices are beginning to dip lower than the national average, which has been above $3.00 per gallon since 2010. To add to these savings, there are several things you can do to save money on gas. With fewer dollars going to gas, set the extra money aside for car maintenance. Additionally, adjust your driving habits to save fuel.

Under the Hood

The experts agree: a properly tuned engine increases the fuel economy in used cars. Use the money you’ve been saving at the pump to correct any serious problems under the hood. For example, a bad oxygen sensor can destroy your fuel economy. Fixing this issue will save you a lot of cash.

Tire Pressure & Oil

One do-it-yourself tip is to check the air pressure in your tires. Your used car’s owner’s manual should state how much pressure is needed for each season. While you’re at it, be sure you or your mechanic have been putting the correct type of oil into the engine. Additionally, when you have your oil changed, ask the technician to show you the air filter. If it’s dirty, purchase a replacement. Many people don’t realize this common mistake is costing them extra money.

Gas Cap

While you’re at the gas station, check your gas cap. If it’s loose, cracked or appears leaky, it’s time for a new one. Another clue may be that your check engine light is on. This is often remedied by replacing the gas cap. If you need a new cap, try visiting your local auto supplies store, or order one from an auto parts warehouse online.

Driving Habits

Still not getting the mileage you want? Check your driving habits! Are you always speeding? Do you stop and start quickly? Do you do a lot of city driving? These could all be culprits. Give yourself plenty of time to get from point A to point B. Go easy on your gas and brake pedal. Take highways when available instead of city streets. Call your fellow co-workers and suggest carpooling to cut down on your driving time. Never sit with your car idling for long. If you’re waiting, turn off the engine. While you’re working on your driving habits, you may want to consider the weight of items in your car. A trunk full of unnecessary objects makes the engine work harder and use more gas.

As you can see, with the right strategy, you can get great gas mileage out of used cars. It could well be worth your time to heed the tips offered above to save at the pump.