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Lower intake manifold retorque

  • Thread starter Thread starter BaBiLuTH
  • Start date Start date Dec 7, 2005
B

BaBiLuTH

New Member
Apr 3, 2005
48
0
0
Dec 7, 2005
#1
  • Dec 7, 2005
  • #1
Hey, I have an 88 5.0 and have a sorta weird question. My question is about torqueing the lower intake manifold. I am about to install Gt40 heads and Gt40 upper and lower intake manifold and am concerned about the torque. My friend and I replaced his head gaskets last week on his 5.0 and after I was done torqueing the lower intake manifold, I went to go recheck the torque with the torque wrench and found that the bolts had to be torqued again. I torqued them down and recheck and found that the passeneger side bolts were still not torqued but the drivers side ones were. I continued with the torque sequence again (never loosening the bolts, just continuing) and after rechecking again, I found the the passenger side bolts needed to be tightened again as the drivers side was tight. I did this step about 4 times all together and then just left the bolts alone. To me I dont think that the bolts were stretching or anything like that, should I have continued torquing or sound I have stopped? I dont want to run into this problem with my car but if I do what should I do? Please let me know as I'm starting this prject very soon. Thank you.
 

TT91

Active Member
May 23, 2003
1,536
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36
Paramus, NJ
Dec 7, 2005
#2
  • Dec 7, 2005
  • #2
do you know the torquing sequence?
 

Blk91stang

Member
Jan 3, 2003
607
0
16
North Brunswick, NJ
Dec 7, 2005
#3
  • Dec 7, 2005
  • #3
Do the torquing sequence and keep going over and over them until their all about the same. When I did my lower intake, I had to do the whole thing about 10 times before all of them tightened up equally at the torque setting. You don't want any bolts loose...
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
6
99
Arkansas
Dec 8, 2005
#4
  • Dec 8, 2005
  • #4
On my intake I have had to do them 6 or 7 times in the proper torque sequence. I go by feel...
 

Mavrick

Founding Member
Aug 29, 2002
2,264
0
46
Collingwood, ON
Dec 8, 2005
#5
  • Dec 8, 2005
  • #5
I did mine 3-4 times over at 22lbs or so.
 

RYC CUKR

Founding Member
May 19, 2002
1,437
1
38
Orlando
Dec 8, 2005
#6
  • Dec 8, 2005
  • #6
Same thing here. And after a few heat cycles I go back pull the upper and check the torque on them again.
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
6
99
Arkansas
Dec 8, 2005
#7
  • Dec 8, 2005
  • #7
The bolts will get loose after some heat cycles and some settling.
 
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