I started to install the nuts to secure our intake manifold to the heads. The nuts got tight pretty quick, before they were completely engaged on the stud. I backed off for fear of loosening a stud from the head. I measure the studs at about 22.5 exposed length. The parts catalog lists 25. Even then, it seems the stacked items (not including height of 2 paper gaskets) should allow full engagement.
Questions:
- Did I simply not apply enough force (i.e. lock nut and / or aluminum washer require a lot of torque?
- Do the different manifolds have different base heights?
- How the heck are you supposed to measure torque on these nuts given the lack of access? Best I can tell, these are meant to be torqued to ~14 ft. lbs.
Notes:
- 1970 914-6 (same as 1969 911T) engine
- Shroud openings have been ground to allow full seat of gasket and manifold on the heads
- Have 901-108-321 1R manifold without threads for vacuum ports. Technically not original for our car, but since we're not planning to use the emission control system didn't see the harm.
