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Discussion Starter #2
you can see the wear starting on the bolt on the right. The left bolt is the new bolt it starts tapering right at the wear point, so it redirects the load these bolts have been getting. I advise all GT-S owners (2000-2002) to do this before they break. in general it appears the intake bolt takes more damage than the exhaust bolt.


-Tronix(questions?)GT
 

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This must have been the most informative write up since everyone started talking about this....thanks......really.
 

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thanks man. Good job. We need more people like you to save us poor students some money :)
 

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Discussion Starter #12
well, Technically yes, you are suppose to torque them to 7 ft-lbs, but thats not alot of torque, so you can tighten them right with a standard socket wrench. just dont torque real hard and strip out the bolt. you can tell when its tight.

as for the Gaskets,, the 2 we did were just fine, there was no need to replace them.


-Tronix(newtons)GT
 

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I should print that out and bring it to the morons at Toyota. Stupid fools didn't check out my lift bolts when I brought my car in for service yesterday even when I told them about the TSB. My CEL light is still on too.
 

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to be quite honest, your bolt (on this pic) looks fine to me... i don't see how the "new" one is not going to show the same signs of what seems like normal wear after some time... i think toyota might have realized that some faulty bolts found their way into the production lines for some 2ZZGEs and some of these might end up breaking... i'd like to know what percentage of GTS (and at what mileage) have experienced the broken bolt problem...

R
 

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well.. if you notice, the bolt on the right (the old one) is worn a bit from where it meets the rocker shaft.
mine looked like that.. maybe a little worse, but here's my theory:

the rocker shaft can rotate if there's an indentation in the bolt, if it rotates, then lift isn't quite as powerful.
it's not much of an indentation, but i'm sure to an engine, a 1/4mm of play makes a bit of a difference.
 

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I have another idea... if you look at the bolts in that pic, notice where the old style bolt's worn area, on the right, lines up on the new style bolt, on the left. It lines up where the bolt begins to taper...and I'm guessing that would be the strongest point of the bolt because it is essentially an arch rather than straight like the old bolt...

If I'm incorrect, please let me know...I'm trying to apply physics, but I could be off. :D

btw, how's it going Raul?

Usman
 

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well, i have not seen the new bolts myself, by judging by that picture it looks as if the new ones are actually thinner? than the old ones? who knows... the design looks very different...
Usman, same old man... needing an oil change but besides that, nothing much going on in S.FL anymore as most of the guys have moved to orlando for school... so it's just me and Derek (the dude with the EVO, boyracer's brother)...
R
 
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