I decided I would start up a thread dedicated to installing the PMO 46mm carburetors that I've selected for my warmed up 3.2L engine.
Background Information
Info regarding the 3.2: engine I'm building can be found here:
http://forums.pelicanparts.com/911-engine-rebuilding-forum/785959-gordos-3-2l-engine-rebuild-ready-reassemble.html
Info regarding some of the fastener's I used to install the carbs & manifolds can be found here:
http://forums.pelicanparts.com/911-engine-rebuilding-forum/746290-studs-b-b-exhaust-pmo-manifolds.html
Attaching the PMO Intake Manifolds & Carburetors to the Engine
I started by placing a manifold gasket on the studs/against the head - then placed the PMO insulators on the studs - then I placed another manifold gasket on top of the insulator (the insulator is sandwiched between 2 gaskets).
The manifolds can be installed with the carburetors attached or separated. I test fit both ways and recommend installing the manifolds with the carburetors attached/fastened to the manifolds.
My vehicle is a 1983 SC which requires a vacuum source for the brake booster. The PMO manifolds that I bought have a vacuum port (threaded hole toward the center/base of the manifold) for this purpose -
the vacuum ported manifold should be installed on the left side of the engine, the port over cylender #2:
Both of the gold anodized
throttle linkage brackets should be mounted so they bend/
face toward the rear of the vehicle / alternator assembly.
The left manifold should also have a bar sticking out of it (to mount a throttle linkage bracket) - this bar/bracket should face the front of the vehicle/flywheel end of the engine:
I purchased "K-nuts" (
K-nuts: self locking nuts for motorsports | K-NUTS.com) from Henry Schmidt / Supertec to fasten the manifolds to the heads. The K-nuts have a 10mm hex head and the base circle is the diameter of a M8 nut (which doesn't fit - see 2nd link provided above). I placed a washer on each stud before I installed the nuts.
I used a 10mm socket with a universal joint and open/boxed end wrench to tighten the fasteners (I couldn't fit my torque wrench - calibrated wrist to tight enough
)
Once the manifolds were installed, I placed manifold gaskets on each port and fastened the carburetors to the manifolds using M8 nuts.
With the carburetors installed, I turned to working on installing the throttle linkage.
Throttle Linkage Installation
I initially assumed I would be using the original throttle bell crank assembly/bracket that mounts to the engine, but quickly figured out it wasn't required and wouldn't fit:
Original throttle linkage assembly / bell crank laid on top of the PMO shaft with bell crank:
File size is getting large for a single post - to be continued in another post...
Gordo