I can't find a definitive answer anywhere. I know 1991 is when Nissan switched over to using a timing chain rather than a timing belt, but I've read mixed results online about whether it is an interference or non-interference engine.
Unfortunately, now that my timing chain has broken, I really need to know whether the interior of my engine is fine, and I'm looking at a couple hundred dollar repair job, or a twisted mess of broken valves and pistons that I might as well push off the edge of a cliff.
Does anybody out there know for sure?
2007-01-23 16:23:36 · 3 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Nissan
Since your chain is gone already, just pull the valve covers, spark plugs, and loosen the camshaft(s) (to close all the valves) then if you have a compression tester plug it into the number one cylinder (make sure you took out the schrader valve from the tester hose) then put air pressure to the hose and listen to where the air is going... if you hear it come out the exhaust or intake, or another plug hole, then your valves are shot. Make sure you check all the plug holes.
2007-01-24 14:06:44 · answer #1 · answered by quick_ridez 4 · 0⤊ 0⤋
An educated guess...it depends on the rpm when it broke. Also, you can take off the valve cover, put a little, 5psi, air into the spark plug hole with the valves closed, if it pushes the piston down, or does not come out the air cleaner or the exhaust, then that cylinder is good. Move to the next. A bent valve is not really a sick twisted mess.
2007-01-23 16:44:59 · answer #2 · answered by charlie at the lake 6 · 0⤊ 0⤋
Valves will hit the pistons.
2016-05-24 03:13:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋