Loctite or re-check on inner CV joint bolts

[Dennis Nicholls]

I'm just about done with my project. 

 

Different sources say different things about those bolts that connect the inner CV joint to the transmission flange (in my case the 5 speed of the base 986).

 

Bentley manual just says install bolts to 29 ft. lbs.

 

Dempsey's manual says install clean, grease-free bolts to 29 ft. lbs., but "CV bolts should be checked after about 500 miles of driving".

 

Postings on forums says to put on a drop of Loctite then torque to 29 ft. lbs.

 

What's the best practice?  I presume when they say Loctite they mean "blue" Loctite 242.

[JFP in PA]

I'm just about done with my project. 

 

Different sources say different things about those bolts that connect the inner CV joint to the transmission flange (in my case the 5 speed of the base 986).

 

Bentley manual just says install bolts to 29 ft. lbs.

 

Dempsey's manual says install clean, grease-free bolts to 29 ft. lbs., but "CV bolts should be checked after about 500 miles of driving".

 

Postings on forums says to put on a drop of Loctite then torque to 29 ft. lbs.

 

What's the best practice?  I presume when they say Loctite they mean "blue" Loctite 242.

 

Bolts and tread holes should be clean (spray brake cleaner is fine), a dab of Loctite, torque to specs.

[Dennis Nicholls]

I wonder why Porsche thinks it's OK to drive 29 ft. lbs. via a 6mm hex wrench.....

 

On the first bolt I tried to torque, my SNAP-ON 6mm hex bit just twisted like taffy.

 

I went and bought one of those super-long hex sets from HF.  They worked just fine.

 

My Snap-on bit was purchased for VW work circa 1986, so it's not even recent vintage stuff.  However, I always thought it was strange that the working end was clear cad plated, not the black chromate that most hardened Allen hex bits show.

 

For future reference:  you really need to use a super long (e.g. 4.75" shaft) 6mm bit for the CV bolts.  The CV's rubber boot pushes sideways on the body of shorter bits and IIUC won't let you enter the recess straight on.