need flex coupling bolt torque
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need flex coupling bolt torque
Someone suggested I unbolt the drive shaft from the flex coupling between the DS and the manual trans to make a shifter install easier.
Now I need to find the torque specs for the bolts/nuts and if they are reusable.
Hopefully someone can find the torque specs in the service manual and post them. Someone gave a quick look and only found the torque for the single-use bolts between the DS and the trans. The specs for the flex coupling bolts are NOT in the section about the DS but probably can be found by searching for Flex Coupling.
If they aren't in the factory service manual, can the torque be determined from the size and markings on the fasteners? I'm thinking not because these bolts connect the drive shaft to basically a big block of rubber and that material probably dictates the torque to use as opposed to the max torque for the bolts if screwed into a solid metal part.
These are the three bolts that connect the flex coupling to the front of the drive shaft. Drawing of the flex coupling and pictures of my actual bolts are below.
The bolt heads take a 15mm wrench and the nuts take 18mm.
The bolt head is marked "SFT 10.9". The nuts have a "T" marking on one edge and "1 0" on the opposite side. The end of the bolt has a groove cut in it. I don't see any thread locker, at least not anything with a color but the bolt turns easily until it gets to the last thread in the nut and then it gets very hard to turn, sort of like a nylock nut but its not one, so the last thread in the nut is somehow different than the ones before it.
Now I need to find the torque specs for the bolts/nuts and if they are reusable.
Hopefully someone can find the torque specs in the service manual and post them. Someone gave a quick look and only found the torque for the single-use bolts between the DS and the trans. The specs for the flex coupling bolts are NOT in the section about the DS but probably can be found by searching for Flex Coupling.
If they aren't in the factory service manual, can the torque be determined from the size and markings on the fasteners? I'm thinking not because these bolts connect the drive shaft to basically a big block of rubber and that material probably dictates the torque to use as opposed to the max torque for the bolts if screwed into a solid metal part.
These are the three bolts that connect the flex coupling to the front of the drive shaft. Drawing of the flex coupling and pictures of my actual bolts are below.
The bolt heads take a 15mm wrench and the nuts take 18mm.
The bolt head is marked "SFT 10.9". The nuts have a "T" marking on one edge and "1 0" on the opposite side. The end of the bolt has a groove cut in it. I don't see any thread locker, at least not anything with a color but the bolt turns easily until it gets to the last thread in the nut and then it gets very hard to turn, sort of like a nylock nut but its not one, so the last thread in the nut is somehow different than the ones before it.