6G Celicas Forums

Welcome Guest ( Log In | Register )

> 7A-FE connecting rod bolts, Is the BGB specification incorrect?
post Dec 9, 2017 - 3:33 PM
+Quote Post
Langing

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.
 
Start new topic
Replies
post Dec 11, 2017 - 12:04 PM
+Quote Post
njccmd2002



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...


--------------------
Learned a lot in 10 years... I hardly log in anymore, last login Today Sept 6 2019, and I was forced just to clarify a post. LOL

If you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in

2grfe Swapped... Why I chose the 2GR, before you ask read here...

A great civilization is not conquered from without until it has destroyed itself from within.


@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



Lo-Fi Version Time is now: March 28th, 2024 - 6:33 PM