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Old 03-14-2020, 05:19 AM   #14
78F350
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Location: Oklahoma
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Quote:
Originally Posted by Homeoboxter View Post
Now that I`m looking at this 987 factory manual, looks like the connecting rod specs are different from what I used on my 2.5 engine. I have a chart with all torque settings that I found here on the forum, and it was a bit confusing because there were two angles listed, 90 and 110 degrees after the 20Nm tightening, I had a thread about it a few weeks back. If you still have the chance, would you mind looking at the conrod bolt tightening specs in your manual? Unfortunately I couldn`t find the manual for the 2.5 Boxster. Thank you for your time!
For the silicone bead, my manual shows the same path, but mirror image (opposite side).

For the rod bolts on a 2.5L, I expect that 90* is fine, but:

There is a table that shows all the engine bolt torques for the M96/20 2.5L, M96/21 3.2L, and M96/22 2.7L supplement 42 dated from 2000 says,
"Connecting rod screws with connecting-rod designation...7R
Initial tightening: 20 (15)
Final tightening: 1x90*

Connecting rod screws with connecting-rod designation...7R
Initial tightening: 20 (15)
Final tightening: 1x110*"

(yes, it says the same thing for both sections except for the final tightening. Is the 7R a typo in one of them?)
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There is a table that shows all the engine bolt torques for the M96/23 2.7L and M96/24 3.2L supplement 64 dated from 2003 says, "Con-rod bolts (replace): initial tightening + final tightening || 20 (15) + 110* torque angle."
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In the section that details the work, supplement 18 printed in 1998, it says:
(following initial tightening to 20 NM)
"2. Final tightening 1 x 90* turn"
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