Setting the correct valve clearances is vitally important for a smooth-running engine. This clearance partially dictates how smooth your engine runs, as well as how long your valve caps will last. As with every component on the vehicle, this clearance is subject to change, due to wear or something coming undone.

The 300tdi manual states to set the valve clearances every XXX km. However, there are instances where you might want to do it sooner. If you venture out into less-developed nations, you might run into a scenario where you’ve been running on low-quality oils, which in turn increases premature wear on the system. Once your clearance is off, your engine might run less smoothly. A ticking noise coming from the engine is a clear indication it’s time to set the valve clearances. Although a 300tdi brake vacuum pump can also be the culprit, oftentimes it is the valve clearances that are off.

With this step-by-step tutorial and template, you’ll have your valve clearance check done in no time. First of all, it guides you in opening and checking the right valves, after which you can easily note down your findings in the template. This way, you’ll pick up any out-of-the-ordinary adjustments quickly. Additionally, you’ll get to look back on your data next time you’re going to check your valve clearance, giving you much-needed insights into your vehicle’s health.

Pro tip from our side:

Put some blocks in front of the tires, select 5^th gear in high, and jack up the left front wheel. Once you’ve removed the rocker cover and started the job, you can now easily move the valves by turning the wheel. Another option is to leave the vehicle as is, in neutral, and use a 27mm socket wrench to turn the engine’s crankshaft.