 7A-FE connecting rod bolts, Is the BGB specification incorrect? |
 Dec 9, 2017 - 3:33 PM
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Enthusiast  Joined Apr 24, '14 From Durham, NC, USA Currently Offline Reputation: 0 (0%)  |
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. |
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Dec 11, 2017 - 12:04 PM
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 Enthusiast Joined Mar 15, '07 From Tennessee Currently Offline Reputation: 52 (100%) |
if you are doing this as a learning experience, there is no limit to cost, as what you learn you apply in other cars...
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Posts in this topic
Langing 7A-FE connecting rod bolts Dec 9, 2017 - 3:33 PM
Smaay you are doing a good job at reading the specs and ... Dec 9, 2017 - 10:39 PM Bitter My advice is going to be opposite but I haven... Dec 10, 2017 - 10:51 AM Langing Late at night, on the interstate, she just shut co... Dec 10, 2017 - 5:49 PM Smaay now that i know you grossly overheated the engine.... Dec 10, 2017 - 10:16 PM
Langing QUOTE (Smaay @ Dec 10, 2017 - 10:16 ... Dec 11, 2017 - 9:34 AM |
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