25, 2019 11:15 AM

Subject: RE: Ready Mix Bolts

1.

The 8 horizontal bolts should be torqued to 249-305 Ft Lbs and not the 70 ft Ibs as indicated in
the workshop manual. I’ve submitted a notification to the publisher to correct the torque
value. | would recommend setting a click type torque wrench to 249 ft Ibs and check the torque
on all eight fasteners. Should you come across any that can be removed by hand, | would
recommend removing all eight of the fasteners since most likely Loctite 271 wasn’t used. When
reinstalling, please make sure Loctite 271 is used to secure the fastener. Torque the
replacement fasteners to 277 ft Ibs which is middle of the torque range. Caution should be
taken in removing the existing bolts so that the aluminum flywheel housing isn’t damaged due
to the Loctite installed. It is recommended heating the area to ease in the bolt removal if it
doesn’t removal easily by hand.

a. Bolt part # is 23-09446-225

b. Torque is 249-305 ft Ibs

c. Loctite required is Loctite 271
The vertical fasteners that secure the engine to the frame rail mounted bracket uses a grade 8
fastener with a prevailing torque nut. It’s not uncommon for there to be a slight spinning
movement of the lower isolator due to the weight of the engine compressing the upper rubber
bushing. The bolt itself should not spin due to the isolators having an inner sleeve. Please set a
click type torque wrench to 216 ft Ibs and check the torque to make sure it hits the minimum
torque value. The torque range of this fastener is 216-265 ft Ibs.

I've included a screen shot of the proper torque values and I’ve attached a copy of the installation
document used for this unit. It calls out for a -003 installation and the unit has a 3 degree angle set.

Please have Ft Worth submit a DPR for these loose fasteners.