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

Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited (kojab)

Fri, 08 Dec 2017 20:33:57 GMT

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.

Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited (MCT_MR2)

Fri, 08 Dec 2017 18:31:28 GMT

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.

Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited (kojab)

Fri, 08 Dec 2017 14:23:38 GMT

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.

Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited (kojab)

Fri, 08 Dec 2017 11:13:09 GMT

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.

Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited (Reddtarga)

Fri, 08 Dec 2017 10:58:01 GMT

FWIW, for 3S motors the Toyota service manual says to use red Locktite on flywheel bolts.

Re: Opinions wanted on wether or not a lightened flywheel should have it's bolts Loktited (TomsMR2)

Fri, 08 Dec 2017 09:56:11 GMT

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?

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

Fri, 08 Dec 2017 08:46:29 GMT

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/