crank pulley torque spec - Technical Troubleshooting discussion in Forkliftaction's forums

Toyota 52-6FGCU35:
crank pulley torque spec

Toyota 52-6fgcu35 s/n-61080 with gm 4.3l

16mm bolt passes through crank pulley and damper pulley into crankshaft. Strange setup as this pulley also drives the driveshaft for the hydraulic pump. There is no keyway or spline to keep the pulley from slipping so I guess the torque spec is important. If anyone is familiar with this set up any info would be appreciated. Torque spec, locktite if recommended.

Thanks

Posted 13 Sep 2016 05:14
Modified 14 Sep 2016 00:14 by poster
Discussion started by mitch

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Mitch, is this a special bolt with a flange sticking out slightly?
If so, you need to use loctite 272 (red high strength) apply to the threads of the bolt and also on the threads in crank snout and also between the pulley and balancer. Have a small amount of oil applied to the flange of the bolt to aid in torquing do not let the oil contaminate the loctite. Bolt torque 311 ft. Lbs. This is right from toyota.

This isn't a mercruiser, you will damage the balancer and pulley after they come loose and they are close to 1500$

Also if the balancer was off you need to put sealant around the inside and where the keyway is or it will seep.

Posted 14 Sep 2016 04:48
Modified 14 Sep 2016 05:19 by poster
Reply by stam
Ontario, Canada

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Yes, typo there. Thanks

Posted 14 Sep 2016 00:15
Reply by mitch

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GM 3.4? dont you mean GM 4.3?

in any case the crank bolt (or vibration dampener retaining bolt) torque spec is: 70 ft lbs (some of these require the use of a mild thread lock compound)

Posted 13 Sep 2016 22:55
Reply by swoop223
North Carolina, United States

You've been swooped!
swoop223@gmail.com

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