the timing chain on my nissan pathfinder broke and i was wondering if this would ruin the valves in the heads of my motor i believe it is a 1991 pathfinder. if you have any clue please let me know!
yes its an interference engine..you can look it up here
http://www.gates.com/part_locator/index.cfm?location_id=3598&go=Interference
in most cases, yes, but there have been a few cases where i just throw another timing chain/belt on and the car fires right up like nothing happened. i would say either tear apart your head and look for bent valves, pushrods, etc. or throw a new timing chain on her and see if she’ll start up. good luck.
References :
experienced mechanic
A broken timing chain will stop the motion of the valve train. It’s pretty much guaranteed that your heads and valves are damaged.
References :
put chain in do comp. check on all cylinder see if they seal up(valves)
References :
Call a Nissan service department and ask them if the valves are interference or non-interference. Interference valves will bend, break or punch a hole in the top of a piston when the timing chain breaks.
References :
yes its an interference engine..you can look it up here
http://www.gates.com/part_locator/index.cfm?location_id=3598&go=Interference
References :