I just bought a nice 1977 Porsche 911S Targa US. I'll make some better pictures soon, to update here.
The following pictures are from before the buy, so better and more detailed pictures will follow.
For now, I'm studying the service history, which I have on paper from 1979 (in California USA) till now, including import documents. Especially an engine rebuild in 2000 has my attention, resulting the lack of "matching numbers".
The engine number gives an '73 Porsche 911T Coupe with a 2341 cc flat-6, while the existing engine, as it should, is an 2687cc flat-6.
A call with the former owner, and later with the company who did the rebuild in 2000 resulted in an explanation.
(Text came from www.rennsportsystems.com by the way.)
Porsche introduced the 2.7 litre engines in 1973 with the Carrera RS 2.7 that never was officially imported into North America. The first and only versions we received in North America were the K-Jetronic-equipped (CIS) units due to increasingly stricter emissions regulations. This precluded using the excellent Bosch MFI system from the RS engines. The 1974 2.7's had no add-on emission equipment and used the early style 3-into-1 heat exchangers that gave these engines more power and lower operating temperatures than the later ones. The various 2.7 litre powerplants used in 75-76-77 were equipped with air pumps and later, thermal reactors that reduced engine life to less than half of the 74 2.7's. Almost all of these engines require extensive machine work to make them durable & reliable.
The magnesium engine cases used in the 2.7 were also subject to pulled head studs and main bearing bore distortion from excess heat. Cylinder heads warped and valve guides needed replacement within 50K miles. These 7R-series cases need very careful inspection by a competent machinist to determine the feasibility of reusing or replacement with a better one. Using a 7R case from a 2.4 litre engine may be preferable due to its less heat stress. The early-style 7R case found in the 2.4 litre engines must be machined to accept 90mm 2.7 litre cylinders.
Here some details
Type : 911S Targa US
VIN-number : 9117211824
Engine numbers
Before rebuild : 6274001
After rebuild : 6532085
1973 Porsche 911T Coupe, 2341 cc flat-6
Code : 77PORSL00701824
Licence number : 41-YB-88
Former Licence nr. : GX-VH-99
USA Licence nr. : 2HWX237
Engine : 911S, 2687cc flat-6
Weight : 1097 kg
Wheelbase : 224 cm
Birth : 30-06-1977
Importdate : 29-09-1993
Colour y4 V4 : L 265 oak green metallic
Interior 12 : Black Leather
Tartan Dress red
Black Velours Pile Carpets
Options factory : M494 Two speakers on rear shelf
M565 Safety steering wheel in leather, 380mm diameter
M566 Rectangular front fog lights
Partnumbers after the rebuild
Cooling fan housing : 901 106 101 5R
Intake Manifolds : 911 110 189 28
Airbox K-Jetronic : 930 110 358 04
Ignition coil : 0 221 122 304 BOSCH
Fuel filter : 0 450 905 079 BOSCH
Ignition unit : 0 227 200 008 BOSCH
Fuel distributor : 0 438 100 006 BOSCH
Crankcase
Left side : 901 101 101 7R
Right side : 901 101 102 7R
Cylinder head : 911 104 345 0R
Oil cooler : 911 107 041 0R
Oil filter : 930 107 764 01
Camshaft housings : 901 105 111 0R
My cat guarding Sally. "If you touch the car, I scratch your face!"
Page 1: BEGINNING
Page 2: RESTORATING SALLY
Page 3: USED PARTS
Page 4: ENGINE DETAILS
Page 5: FRIENDS & EVENTS
