variations and questions 7mgte internals

Gengus · 02-21-2008, 04:56 AM

does anyone know if there are any variations for any of the clearances or other specs inside the 7mgte engine over the years. i have a 91 but i am borrowing a toyota manual from a friend for an 88. i read that there was some kind of alteration to the turbo over the years but i wasnt sure if that was all.

also i couldnt find ring to cylinder wall clearences but maybe i wasnt looking hard enough.

the manual also says nothing about shaving the head it simply says replace if warped past spec. ive read about many people shaving there head and i really dont wanna know how much a new head costs. opinions on this subject?

the machinest i talked to says he dosnt use shims anymore, he explained to me how he adjusts the valves but i cant remember as it was a while ago, i will ask him again about this. he does all of the machine work for the toyota dealership here if that makes any difference. should i just order shims and do the valves myself? i might do this anyways for the cost but am still curious as to the different methods used.

i will also be adding pictures of the car and engine as i go through this process so everyone can have a look

thanks everyone in advance and timely responses are appreciated as i will be tearing the engine down over the next couple of days.

02-21-2008, 04:56 AM	#1
Gengus Stock Join Date: Apr 2007 Location: Charlottesville, VA Posts: 17	variations and questions 7mgte internals does anyone know if there are any variations for any of the clearances or other specs inside the 7mgte engine over the years. i have a 91 but i am borrowing a toyota manual from a friend for an 88. i read that there was some kind of alteration to the turbo over the years but i wasnt sure if that was all. also i couldnt find ring to cylinder wall clearences but maybe i wasnt looking hard enough. the manual also says nothing about shaving the head it simply says replace if warped past spec. ive read about many people shaving there head and i really dont wanna know how much a new head costs. opinions on this subject? the machinest i talked to says he dosnt use shims anymore, he explained to me how he adjusts the valves but i cant remember as it was a while ago, i will ask him again about this. he does all of the machine work for the toyota dealership here if that makes any difference. should i just order shims and do the valves myself? i might do this anyways for the cost but am still curious as to the different methods used. i will also be adding pictures of the car and engine as i go through this process so everyone can have a look thanks everyone in advance and timely responses are appreciated as i will be tearing the engine down over the next couple of days. __________________ 91 Supra turbo. 5 speed. targa top. Engine being rebuilt.