Some of you would know about a recent engine failure I have had, where a intake valve on cylinder one has dropped on the piston during regular street driving. Upon pulling the motor out and stripping it down we also found that some of the valves were kissing the piston. On Cylinder 4 there was 2 exhaust valves and one intake valve kissing the piston and on cylinder 1 there was only one intake valve kissing the piston, what is really strange that the 1 and 3 banks move the same time as 2 and 4. But there is no signs of valve marks on sides 1 and 3 except for valve dropping on cylinder one. Cam timing was all maintained and checked by another an member off here to verify everything lined up. There were no mishifts or over rev because if that was the case it would have been on the other banks as they move at the same time. Brad the engine builder at JMR automotive developments has declined to fix my motor and has blamed it on the tune. Note that the bores, pistons and rings were all perfect there was no scoring or any signs of detonation. Side note, he had also installed cheap Chinese valves where as I had insisted that he replace with genuine Subaru valves
After almost $15,000 being spent on this motor, I will be taking it through the courts as I have sufficient evidence from builders and tuners who specialize in 4 cylinder performance car vehicles.
Just thought I put it out there if any of you guys are or thinking of dealing with him.
Regards,
Minhaaj.