sterlingstone

HOW DO YOU SET / KNOW THAT the TIMING IS SET TDC (TOP DEAD CENTER)?

I think that I have a blown head gasket between cylinders 3 and 4. Does anyone have a quick and dirty list on changing the head gasket, pitfalls, tips, etc? I think I can tackle it, but don't want to cause myself extra misery with a dropped chain, ruined engine, etc etc etc. Thanks in advance for your help. SterlingStone@gmail.com :D:)

I did a compression test (Did not open the throttle at carburetor though) and found cylinders one and two were 155 PSI, while cylinders three and four read only 50 to 55. Suggestions? :confused: sterlingstone@gmail.com

how do you know if a problem with low compression is related to valves (intake or exhaust??) or are just a bad head gasket etc.... THANKS. sterlingstone@gmail.com 1986 Nissan 720 King Cab 4WD 2.4 Litre Naps-Z carburetor based engine.

Hi, I have a 1986 Nissan 720 King Cab Pickup with a 2.4 Litre Naps - Z carburetor based engine. Just yesterday it made a real weird loud panging noise (Kind of metal and thumping (light) together that was noticeable on deceleration. Please help me figure out what is wrong. Seems to have spark to all plugs, no apparent vacuum leaks (by spraying carburetor cleaner on carburetor, intake manifold and all apparent vacuum lines there is no change in rpm.) The engine is extremely rough running and vibrates heavily at idle. It improves a bit around 1800 RPM but something is wrong. The load tapping noise on deceleration scares me. I have made no changes to timing for the past year or two.