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| Lower Intake Manifold Torque Order (Page 1/1) |
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Cruzenoob
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JUL 24, 03:11 PM
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Pontiac Fiero V6 1987
Could anyone please tell me the torque order for the lower intake manifold. As far as I read it's 19ft/lbs, but does anyone have a picture in what order to tighten them??
Id be gratefull from the bottom of my heart 😅
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1985 Fiero GT
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JUL 24, 04:40 PM
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From 1986 gm factory service manual, torques in first picture, sequence in second picture, pieces marked with red dots.
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Cruzenoob
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JUL 24, 04:58 PM
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Thank you very much !!! I put the new gasket and applied new high trmp silicone on remaining surface, but forgot to take the Manual with me.... 😅 Should I redo the tightening order? I had to do it like this because the silicone was starting to dry off.
10 6 2 4 8
7 3 1 5 9 (here sits thermostat)
Does it make a big diffrence, anyone know?
Tyvm for any reply
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1985 Fiero GT
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JUL 24, 06:32 PM
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I wouldn't bother redoing it, when I did mine a few months ago, I didn't even know there was a torque sequence or anything, I just did them somewhat evenly until "tight", yours seems fairly even, so I wouldn't bother redoing it.
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Cruzenoob
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JUL 25, 12:45 AM
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Thank you so much ! Haha I made that post when I was in my garage finaly starting to assemble everything, then forgot the manual for torque sequence and my silicone started to harden 🤣
You give me enough confidence to leave it as it is, Tyvm !
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pmbrunelle
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JUL 25, 08:41 AM
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Most auto parts like this do not require a specific tightening order.
It is like applying a sticker to a surface; you begin in the middle, and then push outwards on both sides to avoid wrinkles in the sticker.
By tightening from the middle-out, you first make the parts touch in the middle, and then on the sides, without gaps.
If the parts are curved such that there is a gap in the middle, then if the outer edges are tightened first, a gap may remain in the middle even if the screws in the middle are tightened.
The service book specifies a tightening order that works, but it is really just an application of the centre-out sticker principle.[This message has been edited by pmbrunelle (edited 07-25-2024).]
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Vintage-Nut
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JUL 25, 11:41 AM
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FYI - Get Digital Fiero Manuals from the Internet
https://fieroinfo.com/manuals/ ------------------
Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles
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