[Grady Clay]

ErrieKruger,

Good question. Keep them coming.

I assume you have Wayne’s engine book and others.
Please list your ‘library’ so we can spot any critical omission.
You are correct, there is no ‘one source’ and there is occasional seemingly conflicting information.
This Forum can help you sort through everything.

It will be valuable for you to post a ‘plan’.
Take Wayne’s lists (appropriate for a CIS 2.7) and apply that to a 2.2T.
I would not buy any parts until you have a complete plan and posted it for ‘peer review’.

You have a nice engine to start with.
It will respond to a few up-dates and the knowledge gained from 40-year hindsight.

Your case should already have the piston squirters – good.
It is a mag case. Even with the relatively low stress of a 2.2T, most will recommend inserts for the cylinder head studs and a few other.
There is an ‘oil bypass’ mod that is important.

Critical is inspecting and measuring. Ollie’s and others can help.
What are the measurements on the crankshaft?
What are the measurements of the connecting rods?
What are the measurements on your 2.2T P&Cs?
How “redone” are the cylinder heads?

What is the condition of the Zenith carburetors?
Have the Marelli distributor run on a test machine to determine its condition.
What is the condition of the exhaust system?

I assume your 912 has a type 901 or 902 transmission.
You will not be able to use the 225 mm pull-type 2.2T clutch/flywheel assembly with that transmission.
You will need a complete set of 215 mm push-type parts from 1969 911 and earlier.

Assuming you have the original 2.2T engine oil cooler and the long engine oil out hose, you will need an oil tank from ’71 and earlier (somewhat hard to find good used).
If you use a later (’73->) oil tank, you will need to change the engine oil cooler and the oil-out plumbing.

It will be desirable to find a ’70 or later engine electrical panel with the 14-pin connector harness.
This will let you maintain your ’71 engine electrical wiring harness.

What alternator do you have?
You will need a compatible voltage regulator.

Please post good images of all the parts.
This will allow us to spot anything that may need attention or is missing.

Please post some images of your car.

Best,
Grady