Most Recent Video. This standard picnic table is made unique in the easy to build instructions. Featuring ample seating and a sturdy top, paint yours a bold bright color to brighten up any outdoor (or indoor) space. Special thanks to our readers for sharing their photos.
Step 18 - Each intake and exhaust valve utilizes a spring which will return the valve to its original position (closed). If a valve spring has broken or a cam lobe has worn down, it will cause the engine to misfire and run rough due to the loss of compression.
When you remove the oil cap(while the engine is running)and break the valve cover's air-tight seal it prohibits that from occuring. This creates a vacuum leak. Vacuum leaks cause your idle to lower and usually make the engine struggle to run at all.