This is a main big end for the Isuzu FVM and FTR model truck. A big end is the end of a connecting rod that engages with a crankshaft. The top end of the connecting rod is called the small end, and the bottom end is called the big end. He crawled under the engine every 15 miles or so to examine the big end for overheating.
Valve stem seals provide a leak of the oil to keep the valve system lubricated. When the lubrication is in a controlled manner, this helps the valve guide to slide without any harm. Too much oil and it causes carbon buildup; too less of oil, and it causes the stem and guide wear.
For Isuzu FVZ & FVR model trucks with the 6HK1 engine.
Camshaft bushings provide support and flexibility in the proper operation of a vehicle’s braking system .A camshaft bushing may become worn, allowing some non-rotational movement of the camshaft. Pulling on the camshaft by hand generates a combination of lateral and rotational movement and does not provide an accurate assessment of the bushing’s wear.