Interference or Non-Interference 720?

[rudolfgreen]

Hi, couldnt find much through the search.. is an 81 720 Z22 Interference or Non-Interference? It appears the left side tensioner/guide has come apart some and although running fine.. making a little bit of a racket and wondering the risk in driving her. Much appreciated..

[breadbox]

I'm not positive in if the same is true in the 720, but in a 240sx(similar motor) if your chain guide breaks the chain will eat through the front cover into the water jacket. that happened to the spare motor I picked up. I found the plastic POS chain guide in tiny pieces in the oil pan with both of its bolts and the tension bolt fell out too, but it fought with the crank gear and lost.

You should get a timing kit and start thinking of installing it.

[rudolfgreen]

Tearing into it..thanks