Mechanics

MY TIMINGBELT BROKE WHILE DRIVING REPLACED IT ,SET ALL TIMING MARKS/TDC.STILL WONT TURNOVER.

1993 Nissan Pathfinder • 35,000 miles

I was driving to work and my engine just died out.I thought I ran out of gas, I fueled up - turned on the key and noticed it was a timing belt problem just by hearing how it crank.I opened the front cam cover, the belt was striped up.I tried putting a new timing belt aligned both cam timing marks/crank pulley time mark I also set no.1 piston to TDC but it still wont turnover.I followed my chilton repair book step by step and still cant start. Could it be a bent valve e.T.C?Ive done timing belt issues before but a nissan pathfinder 93 VG30 seems difficult. Any good advice?
Avatar
Ron1374
May 22, 2012.



Do a compression test on the engine that will tell you how the valves are bent or not. Let me kwow what you find.

Saturntech9
May 22, 2012.
You sure its on the compression stroke/TDC instead of exhaust stroke 180 out-double check

Rasmataz
May 22, 2012.
How to tell the if the #1 piston TDC is on compression or exhaust stroke?

Tiny
Ron1374
May 24, 2012.
If your cam and crank timing marks are dead on then you know your timed correctly. If they are do a compression test and post the results.

Saturntech9
May 24, 2012.
Because that engine can bend valves.

Saturntech9
May 24, 2012.
Timing marks matched up. It turned over but keeps dieing out.I think the distributor is off its mark, I cant seem to figure out the 15 degree mark or where to set the rotor.I removed the distributor a few times, advanced, & retard it. All it does is backfires- sometimes it stays running only when I gas it, but wont idle. What should I do?

Tiny
Ron1374
May 27, 2012.
Remove the distributor set the timing to 0/TDC at crank pulley and then reinstall the distributor making sure the rotor is pointing to the no.1 cap tower and then retime the ignition

Rasmataz
May 27, 2012.
Also make sure the the cams are lined up so you know the valves are closed when it reads number one top dead center.

Saturntech9
May 28, 2012.
Im with rasmatas on this one my thoughts exactly.

Cadieman
May 28, 2012.