2JZ-gte - interference details and random vvti info

[Draven]

This info is ripped from mkivsupra.com, but since they're the best english-speaking source of vvti info, I trust them!

2jz-gte, both non-vvti AND vvti are NON-interference. This changes for the vvti engines (and, debatably, for the non-vvti) if greater than 272 degree cams are installed.

Also, the procedure for changing the JZA80 vvti timing belt is the same as for the lexus IS300.

[cambelt]

Thats interesting ,Maybe the lower comp pistons are not as tall. The N/A 2 J vvti is deffinatly interference , when you do the timing belt on any of the jz engines ,do the idler and tensioner too .

[Draven]

yeah, GE vvti is interference.
the tensioner is what died, so it's definitely getting replaced

[Vios-GT_07]

Thats interesting ,Maybe the lower comp pistons are not as tall. The N/A 2 J vvti is deffinatly interference , when you do the timing belt on any of the jz engines ,do the idler and tensioner too .

so the 2JZ-GTE vvt-i are not - inteference
but the 2JZ-GE vvt-i are inteference??

hm... i thought all 2JZs were non-inteference.. or at least all toyota with Yamaha made heads are non-inteference...

[Draven]

there's been rumours flyuing around about all vvti 2jzs being interference.. as dave said, 2jz-ge vvti is definitely interference

[Soarer]

Non interference below 272 degree cams, but what lift? I've heard 272/9.3 can make them interference...

[Draven]

don't know - I'm offering 2nd hand info here

www.mkivsupra.net if you really want to find out - they're great

[cambelt]

Yes i have seen the result of a tensioner gone bad at 160000klm on a gs 300 , i think we had to order 9 valves from toyota to fix the head .
the oil leaks out of the tensioner and they go sloppy.
Dave