Tuesday, May 30, 2023

Porsche 911 3.2

Looking for information on the Porsche 911, air-cooled engines, or the G-Model? You've come to the right place! The Porsche 911 has a rich history, dating back to its debut in 1963. This iconic sports car has undergone numerous updates and redesigns over the years, setting the standard for performance and style.

One notable model is the Porsche 911 3.2, introduced in 1984 as a successor to the 911 SC. As the last air-cooled 911 before the transition to water-cooled engines, the 3.2 brought a refined and modern touch to the classic design. With redesigned front and rear bumpers, integrated fog lights, a larger lip spoiler, and a more aerodynamic rear spoiler, the 911 3.2 boasted improved aesthetics and enhanced downforce at high speeds. The interior received updates as well, including more comfortable seats, improved ergonomics, and better sound insulation.

Under the hood, the Porsche 911 3.2 featured an evolved version of the 3.0-liter engine from the previous 911 SC model. Porsche increased the engine displacement to 3.2 liters by modifying the bore size and stroke. They also made significant improvements to the compression ratio, fuel injection system, and engine internals using durable materials. One standout feature was the adoption of hydraulic valve lifters, eliminating the need for regular valve adjustments and ensuring a more reliable and low-maintenance engine.

The Porsche 911 3.2 came in various configurations. The standard engine produced 217 horsepower and 195 lb-ft of torque, while the optional "Sport" package increased the output to 231 horsepower and 209 lb-ft of torque. The "Sport" package included higher lift camshafts, a larger diameter exhaust, and a revised engine management system. Equipped with a 3.2-liter flat-six engine and a five-speed manual transmission, the 911 3.2 accelerated from 0-60 mph in just over 5 seconds, with a top speed of approximately 150 mph. The car's precise steering, excellent balance, and upgraded brakes with larger discs and calipers ensured exceptional handling and stopping power.

Regarded by many as the pinnacle of air-cooled 911s, the Porsche 911 3.2 represents the culmination of engineering and design expertise. It remains highly sought after by collectors and enthusiasts, with well-maintained examples commanding six-figure prices. With its timeless design, outstanding performance, and undeniable Porsche legacy, the 911 3.2 is a classic sports car that continues to captivate automotive enthusiasts worldwide.

Consider the Porsche 911 3.2 if you're in the market for a classic sports car. Its enduring appeal and reputation as an icon of the air-cooled 911 era make it a truly exceptional choice. Experience the spirit and legacy of Porsche with the remarkable 911 3.2.

In comparing the recent models of the Porsche 911 to its air-cooled predecessors, it's important to note the significant advancements that have taken place. While the air-cooled 911s, like the 911 3.2, hold a special place in automotive history, the modern iterations of the 911 offer cutting-edge technology and performance.

Today's Porsche 911 models feature water-cooled engines, which allow for improved efficiency, power, and reliability. The transition to water-cooling took place with the introduction of the 996 generation in 1998. These newer engines benefit from advanced engineering, utilizing technologies such as direct fuel injection, variable valve timing, and turbocharging.

The latest Porsche 911 models offer an impressive range of engines, including turbocharged options with increased horsepower and torque outputs. These engines deliver exhilarating acceleration, with 0-60 mph times that rival or surpass those of the air-cooled 911s. Additionally, the modern 911s boast enhanced handling capabilities, thanks to advancements in suspension systems, aerodynamics, and electronic stability control.

The interior of the recent Porsche 911 models reflects contemporary luxury and technology. High-quality materials, state-of-the-art infotainment systems, and advanced driver-assistance features provide a comfortable and connected driving experience. The cabin is designed with meticulous attention to detail, combining modern convenience with the timeless Porsche aesthetic.

While the air-cooled 911s hold their own charm and are celebrated for their historical significance, the recent models of the Porsche 911 represent the pinnacle of performance, technology, and refinement. Porsche has managed to evolve the iconic sports car while staying true to its heritage, creating a harmonious blend of tradition and innovation.

Whether you appreciate the rawness and character of the air-cooled 911s or desire the latest advancements in automotive engineering, the Porsche 911 lineup offers a wide range of options to suit various preferences. From classic enthusiasts to those seeking the latest cutting-edge features, there is a Porsche 911 model for everyone, each delivering an exceptional driving experience that upholds the legacy of this legendary sports car.

Friday, December 25, 2020

Speed Sensor Replacement

My 911 could not start. Both alternator and fluid pump were working fine. Using the diagnostic method below I found out the resistances were zero. 911 3.2 engine requires both Speed and Reference sensors to work to start the engine.

Speed and Reference sensor connector locations and diagnostic method.


Sensor with harness part numbers. Other part numbers -91160621501
91160621500 - this is an old number
ref. 026121002 and cross reference 12141708619 m14

Sensor positions and gaps between the sensors and the crankshaft.

Tuesday, December 22, 2020

Porsche 911 3.2 - Transmission Fluid Change Out

This is to show some experience I went through during the fluid change out. 

First transmission drain and fill plugs part number. They both are the same plug. 


Drain plug captured some metal shavings. Not a good sign. The plug on the left is new. 

Monday, November 23, 2020

Porsche 911 3.2 Oil Change

Engine Oil - Valvoline VR1 20W-50 High Zinc.
Oil drain plug for oil tank -
 
 
Oil drain plug for crane case - The part number shown in the picture below is WRONG for 911 3.2 engine.

New crush washers -

A few good oil change videos.

Friday, September 6, 2019

Porsche 911 Fuel Pump Relay Survival Kit

This is to show how I make a jumper to bypass the Fuel Pump Relay. This isn't a permanent solution but it can start up the car.

Connect the wire between pins 30 and 87 to turn on the DME and between Pins 30 and 87b to turn on the fuel pump.
  • Pin 85  [1] - Ground to the DME/injector relay coil
  • Pin 30  [2] - +12V directly from the battery
  • Pin 86  [3] - Switched +12V from ignition switch (bus 15)
  • Pin 87b [4] - +12V to the fuel pump, switched by the fuel pump relay 
  • Pin 87  [8] - +12V to the DME and fuel injectors, switched by the DME/injector relay
  • Pin 85b [9] - 0V switched to the coil of the fuel pump relay from the DME, pin 20

 Diagram shown is looking into the connector in the CAR.

  
This is shown the 87 and 87b are connected to the wire. As soon as pin 30 is connected with the other 2 pins, the fuel pump should start to run even without the ignition key in the car.


To make the jumper, put 2 wires with RC plugs to make a 3 connections together.

Saturday, August 17, 2019

911 Engine Removal

Engine removal time lapse.

Engine removal high level steps:
  1. Disconnect Battery First
  2. Remove Fuel Pump Relay Under Driver Seat
  3. Empty Oil from Engine Sump
  4. Empty Oil from Oil Tank
  5. Raise Car on Jack Stands
  6. Disconnect Hard Oil Line
  7. Disconnect & Remove Rubber Oil Line
  8. Disconnect Clutch Cable, Arm, and Helper Spring Assembly
  9. Disconnect Starter Solenoid Electrical Connections
  10. Disconnect Reverse Backup Switch from Transmission
  11. Disconnect Heater Hoses From Heat Exchangers
  12. Disconnect and Remove Shift Coupler
  13. Disconnect A/C Compressor and Tie to Side of Car
  14. Disconnect all Fuel Lines
  15. Disconnect Main Engine Wire Harness
  16. Disconnect Breather Hoses
  17. Disconnect Accelerator Linkage Bar
  18. Disconnect Cruise Control Cable
  19. Disconnect Oxygen Sensor
  20. Remove Four Nuts that Hold Engine to Tranny
  21. Remove Engine Motor Mount Bolts
  22. Lower Engine Down
  23. Pull Engine Away from Transmission
  24. Lower Down onto Cart and Remove
Another video shows engine removal time lapse.

911 915 Clutch Adjustment

This video shows how the clutch wire movement.


Here is a video shows detail clutch adjustment.

The high level procedure is :

  1. Disconnect cable.
  2. Adjust bolt attached to the large release lever arm until clearance 1.2mm
  3. Attached the clutch cable.
  4. Tighten up the cable until the clearance reduce to 1.0mm.