ZR-1 Maintenance Tips

General Maintenance

by Jim VanDorn

 

The most common call we receive by far is from a confused ZR1 owner. After years of reading everything from which thermostat to use, to what type of spark plug is best, the average owner is totally and completely confused...and for good reason. There are many varied opinions of what is best for our cars but that may depend greatly on how you use your ZR1.

 

After seven years plus, many ZR1's are finally accruing some mileage. We have had the opportunity to closely inspect many engines with a variety of types of use from normal street driving to severe "weekend" use (track time). Compiling this information we can now offer the ZR1 owner some observations. One rule we've adopted after hearing so many owners say the same thing is the "DIMWIT" or "Darn, if I didn't Mess With IT" rule. In other words, if you didn't have a problem, then what are your intentions in the first place? To date, the only company known to have a fleet of engineering ZR1's to test with was GM and it's affiliates.

 

Therefore, we must ask ourselves if their suggested procedures and parts recommendations should have a considerable amount of merit. Obviously they do, but on the other hand, there are no doubt areas for improvement. Although we will begin our segment discussing the routine and normal maintenance of the ZR1, there are many areas where an upgrade will be suggested.

 

Please understand that these are personal opinions and experiences and are not intended to conflict with service procedures outlined in the appropriate service manual.


  Articles

Routine Maintenance

The AC air filter is of the highest quality but must usually be serviced at much greater intervals than the 30,000 miles indicated in the owner's manu...

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Here is a method of testing the condition of the master hydraulic clutch cylinder after the slave cylinder has been replaced.   Simulate the ve...

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By far, the most common complaint made by the Corvette owner is "overheating." There are several concerns here.   First, the Corvette ZR1 has n...

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Drain, flush and refill system with new coolant as follows:   A. When engine and radiator are cool, remove pressure cap on coolant fill reservo...

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How to: Jack up a ZR-1

How to: jack-up a ZR-1.

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How to lift/jack-up the ZR-1

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Some of you have found out the hard way that the LT5 engine is not "cleaning friendly." IN fact, we would more likely say that the LT5 is a real chall...

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The most common form of preventive maintenance is the routine oil change. If you drive your car in hot weather, or under severe track conditions (high...

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Depending on your driving habits and conditions, we recommend the following. Street driven cars can adhere to the recommended lubricant's and service ...

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How to remove the number 8 spark plug.

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As with many other systems on the ZR1, constant improvements were made each year to enhance handling performance. With the exception of the '95 model ...

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It seems the items most easily accessible to the owner are also the most popular to change. We've all heard the claims of better and more, but the tru...

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The LT5 requires much the same routine care as most other engines. As we've mentioned before, unless your car will see severe duty, we highly recommen...

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