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Porsche Technical Articles

This category contains 29 posts

Kevin Gross – Catellus Engineering

I have been worried about the noises coming out of the transaxle on my Porsche 944 track car. Based on his excellent reputation, I decided to remove the transaxle and send it to Kevin Gross at Catellus Engineering for a rebuild. Note that the 944 uses a “transaxle” which is located at the rear of … Continue reading

Porsche 944 Engine Rebuild – First Startup

I did the first start-up on my engine rebuild yesterday.  Woo hoo! I had a couple of interesting issues crop up. I could not get the oil pump to prime.  I always check for oil flow at the filter as early as I can in the process. I was not getting any flow with the … Continue reading

Porsche 944 Track Car- Upgrades to the Steering

As I originally set up my track car, I had taken the power steering rack that came with the car, removed the hydraulic fluid, and plugged the various openings. After 5 years of use, I realized that there was quite a bit of slop in the steering. I made some investigations of the various components … Continue reading

Porsche 944 Engine Rebuild – Part 5

In Part 4, we installed the cam tower. I have so far skipped over items like the oil pan, oil pump, water pump, etc. In the great scheme of things, these could be installed by now. Here are a few pointers. First, we will look at installing the oil pump. When you installed the crankshaft … Continue reading

Porsche 944 Engine Rebuild – Part 4

In our last article Part 3, we installed the cylinder head on the block. It’s really starting to look like an engine now. Now let’s talk about installing the cam tower. The cam tower is a little bit tricky only in that if you go about it the wrong way, you may bend some valves. … Continue reading

Porsche 944 Engine Rebuild – Part 3

In our last article, we got the pistons installed. Now we will move on to the cylinder head. It is not imperative but I like to replace the head studs with new items from Porsche. I feel that the head studs are the 2nd most highly stressed fastener in the engine, second only to the … Continue reading

RH Classic Design Wheels for Sale – SOLD

FOR SALE – RH Classic Design Wheels – Speedline Style Porsche Style P-3.6  PRICE REDUCED $2000 OBO These wheels came on the 1986.5 Porsche 928 that I purchased 3 years ago. As far as I can tell, the car’s original owner had them fitted to the car during his ownership. As shown in some of … Continue reading

Porsche 944 Engine Rebuild Part 2

In Engine Rebuild Part I, we looked at installing the crank in the engine. In Part II, we will look at installing the pistons and the rods. But first a word about prepping the block. As I noted in Part 1, I chose to clean the block in my blasting cabinet using glass beads. This … Continue reading

Porsche 944 Engine Rebuild Part 1

My Porsche 944 track car donated it’s engine block to my Porsche 944 “R”. That was OK because I had a replacement block waiting in the wings. This series of articles will document in some detail the building of a 2.5 litre normally aspirated 2 valves per cylinder Porsche 944 engine. The starting point of … Continue reading

Porsche 944 – Coolant System Explained

So I’m in the process of rebuilding the engine for my track car and, as usual, I got sidetracked. As I was cleaning up the waterpump, I got to thinking, how exactly does this cooling thing all work? It turned out it was more complicated than I thought, with several interesting features. If you want … Continue reading

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