To achieve optimal performance in My Summer Car, understanding carburetor tuning and its relationship to engine temperature is crucial. Proper tuning involves adjusting the air-fuel mixture screw on the carburetor to achieve a specific air-fuel ratio (A/F). This process is best performed when the engine has reached operating temperature, indicated by the temperature gauge needle being fully upright.
Achieving the Right A/F Ratio
A key indicator of the A/F ratio is the color of the exhaust smoke. Black smoke signifies a rich mixture (too much fuel), while white smoke indicates a lean mixture (too much air). The goal is to achieve a light-grey or transparent exhaust, indicating a balanced A/F ratio.
With the engine at operating temperature and the choke off, locate the adjustment screw on the carburetor. Observe the exhaust smoke while adjusting the screw. Small adjustments are key; turn the screw until the smoke color changes to the desired light grey or transparent. You can manually rev the engine using the throttle spring on the carburetor to better observe the exhaust.
Alternatively, a mixture gauge, available in the in-game catalogue, provides a more precise tuning method. Install the gauge and adjust the carburetor screw until the reading falls within the green range, ideally around 14.9.
Addressing Engine Pinging (“Ting-Ting-Ting”)
A “ting-ting-ting” sound from the engine indicates incorrect valve timing, a serious issue caused by the pistons contacting the valves. To rectify this, remove the rocker cover with a screwdriver. With the engine running, listen for the pinging sound. Each cylinder has two adjustable screws on the cylinder head, one for the intake valve and one for the exhaust valve.
Carefully adjust these screws until the pinging ceases. If the engine stalls or the sound persists, reset the valves by turning them more than 20 times in one direction and then 10 times in the opposite direction. This establishes a safe baseline setting. From there, fine-tune the adjustment a few clicks at a time to find the optimal setting, eliminating the pinging sound. Precise valve timing can be further refined to enhance torque or fuel efficiency.
Engine temperature plays a crucial role in carb tuning in My Summer Car. A warm engine ensures consistent fuel vaporization and accurate adjustments. By observing exhaust smoke color or utilizing a mixture gauge, you can achieve the ideal A/F ratio. Additionally, addressing valve timing issues by adjusting the valves eliminates engine pinging and ensures smooth operation. A properly tuned engine will provide optimal performance and reliability in your virtual Finnish countryside adventures.
