Go back to home

Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited

Author
Post
Essentials Only Full Version
kojab
MR2 Deity
  • Total Posts : 235
  • Scores: 40
  • Reward points: 3666
  • Joined: 2012/02/28 11:44:25
  • Location: Sydney/Sutherland Shire
  • Status: offline
2017/12/08 08:46:29 (permalink)
0

Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited

I have built a few engines in my time but have never resorted to using Loctite on any parts.  Mind you most of these engines have been standard so in this case being a high performance engine, probably seeing 7000 + RPM would it be advisable to Loctite this lightened flywheel?
 
http://www.xtremeclutch.eu/product/25893/FTY001CL/

92' SW20 3SGTE   GEN2 GT Hardtop Holden Ls1 ECU
87' AW11 3SGTE   Delco EFI ECU & 21 psi boost
71' KE25 3TGTE    Delco EFI ECU Standard engine 24 psi boost
78' KE55 L67        Delco EFI ECU
#1


6 Replies Related Threads
    TomsMR2
    MR2 Scholar
    • Total Posts : 206
    • Scores: 16
    • Reward points: 5057
    • Joined: 2011/04/07 19:51:15
    • Location: Perth WA Australia
    • Status: offline
    Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited 2017/12/08 09:56:11 (permalink)
    0
    In my opinion the locktite is not just there to hold the flywheel on, the bolt holes in the crank are open to the oil so it does help seal from minor oil leaks in this area.
    For the sake of following correct procedure why not just do it?
    #2
    Reddtarga
    MR2 Deity
    • Total Posts : 2175
    • Scores: 249
    • Reward points: 5547
    • Joined: 2011/04/07 19:51:15
    • Location: Vic Australia
    • Status: offline
    Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited 2017/12/08 10:58:01 (permalink)
    0
    FWIW, for 3S motors the Toyota service manual says to use red Locktite on flywheel bolts. 

    1990 ADM NA
     
     
     
     
     
     
    #3

    kojab
    MR2 Deity
    • Total Posts : 235
    • Scores: 40
    • Reward points: 3666
    • Joined: 2012/02/28 11:44:25
    • Location: Sydney/Sutherland Shire
    • Status: offline
    Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited 2017/12/08 11:13:09 (permalink)
    0
    Thanks guys.  That's two positives so it will be locktited.  Did the Toyota service manual say the locktite code number?  From memory I think they use a three number code, some thing like 241.  I will check it out.

    92' SW20 3SGTE   GEN2 GT Hardtop Holden Ls1 ECU
    87' AW11 3SGTE   Delco EFI ECU & 21 psi boost
    71' KE25 3TGTE    Delco EFI ECU Standard engine 24 psi boost
    78' KE55 L67        Delco EFI ECU
    #4
    kojab
    MR2 Deity
    • Total Posts : 235
    • Scores: 40
    • Reward points: 3666
    • Joined: 2012/02/28 11:44:25
    • Location: Sydney/Sutherland Shire
    • Status: offline
    Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited 2017/12/08 14:23:38 (permalink)
    0
    Did some searching, found this
    https://www.yotatech.com/forums/f123/toyota-adhesive-sealant-cross-reference-chart-251907/
     
    Looks like Loctite 271 is the go.  Only worring thing is you have to heat up the bolts to 260 degs C to remove them.

    92' SW20 3SGTE   GEN2 GT Hardtop Holden Ls1 ECU
    87' AW11 3SGTE   Delco EFI ECU & 21 psi boost
    71' KE25 3TGTE    Delco EFI ECU Standard engine 24 psi boost
    78' KE55 L67        Delco EFI ECU
    #5
    MCT_MR2
    MR2 Deity
    • Total Posts : 626
    • Scores: 104
    • Reward points: 4232
    • Joined: 2011/04/07 19:51:15
    • Location: Melbourne Victoria Australia
    • Status: offline
    Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited 2017/12/08 18:31:28 (permalink)
    0
    I assure you that it is highly unlikely that you will need to heat the bolts to remove them, especially if you follow torque specs.

    '88 MR2 4AGTE W/ EFR6258

    224.6KW @ 20PSI

    more to come......
    #6

    kojab
    MR2 Deity
    • Total Posts : 235
    • Scores: 40
    • Reward points: 3666
    • Joined: 2012/02/28 11:44:25
    • Location: Sydney/Sutherland Shire
    • Status: offline
    Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited 2017/12/08 20:33:57 (permalink)
    0
    That's reassuring.  I am going to torque the new flywheel down to 80 ft-lb and clutch cover to 14 ft-lb as per 1990 3SGTE service manual.
     
    Also thanks to TomsMR2 post regarding sealing the threads to stop oil seepage into clutch area.

    92' SW20 3SGTE   GEN2 GT Hardtop Holden Ls1 ECU
    87' AW11 3SGTE   Delco EFI ECU & 21 psi boost
    71' KE25 3TGTE    Delco EFI ECU Standard engine 24 psi boost
    78' KE55 L67        Delco EFI ECU
    #7
    Jump to:
    © 2025 APG vNext Trial Version 5.5