7A-FE connecting rod bolts, Is the BGB specification incorrect? Options

[Langing]

Beginning to rebuild my Celica ST 7A-FE engine (finally).

Page EG-132 of the repair manual asked me to measure the DIAMETER of the connecting rod bolts (at the measuring point - some 20 mm from the head of the bolt).

They specify the standard diameter: 8.860 - 9.000 mm (0.3488 - 0.3543 ")

And the minimum diameter: 8.60 mm (0.3386")

My bolts measured about 7.22 mm (0.284"), which is less than the minimum, which means I need to buy new bolts.

Then I checked my Haynes manual and found they had a different minimum bolt diameter spec of 0.2992". Still, my bolts are 0.015" smaller than the minimum and I still need to buy new bolts, BUT. . .

The Toyota manual spec seems so much larger than my bolts, AND the Haynes manual spec is quite close, so I question whether Toyota has a mistake in their manual, and would like to know if anybody has a correct spec for this bolt, or can tell me where I might find it. I am suspecting that I would not get much help if I called Toyota. Maybe I am wrong.

[Smaay]

you are doing a good job at reading the specs and following directions. Toyota manuals i use as gospel over a haynes or chiltons. Now here is my 17+ years of experience in building toyota engines. use the original bolts. unless you are building a monster HP engine out of a 7A, use the original bolts and save your money. this is a 7A you are building. its not a high revving engine, it dont make any power. you will be just fine.