I just had a Mazda 929 (89 model) same engine. Idler pulley on t-belt came apart on highway at 80mph. No bent valves. He got lucky.

I give it a 50/50 chance. I have done many Volvo (2.1), Honda (1.5), Mazda (3.0), and Mits. (2.0 DOHC), all interference engin... Login to read more.