Check for leaky intake manifold, clogged muffler and leaky, burnt or sticky valves
Diagnoses incorrect timing
Determines accurate fuel pump pressure
Locates leaks in gas line
Readings shown and interpreted on face of multi-colored dial. 3-1/2" gauge has English and metric scales. Has range of 0-28 inch (0-70 Cm) vacuum and 0-10 PSI (0-0.7 Kg/Cm2) pressure. Complete with hose, three fittings and operating instructions. Packed in a storage pouch.
