Injector seal refresh

As much of this engine was filthy and in need of a refresh and resealing, I thought it wise to do the fuel injector seals too!

The 16v comes standard with the green top Bosch fuel injectors.

I purchased a seal kit from Mr Injector that comes with the correct size seals plus the filters, shims & end caps. For about £20 it's a bargain.

The seals are easy to remove, the only challenge is how to remove the filter that's inserted into the one end.

I found a useful guide on Youtube. Secure a screw in a vice - about 4/5mm thick - then screw the injector onto the screw and pull away from the vice. The filter should be left behind on the screw. Easy peasy as they say.

The new filter is simply pushed into the injector - I used the face of a flat head spanner to press against.

But before I applied the new seals and inserted the filter - I gave the injectors a refresh!

Firstly I masked up the ends...

Popped them into a make shift spray booth:

All nice and silver now!

And with new seals!

Comments

Engine out the top - Easy Peasy

After reading numerous posts, the Porsche workshop manual and Clarks Garage step-by-step engine removal guide - I felt confident enough to tackle the job. But I wanted to remove the engine from the top. As I discovered, it was pretty straight forward even for a novice! Result. I wanted to avoid removing the cross member and disturb the front suspension to do something I was convinced could be done easier from the top. Posts such as this one convinced me to give it a go at least. And I'm glad I did. In summary I was able to remove the engine from the top without needing to remove the bonnet/hood; torque tube; transaxle; bellhousing; clutch; clutch slave cylinder; cross member; front suspension; and radiator. Contrary to many so called internet experts opinions and many confusing threads this was painless and without dread. All that was necessary to remove was the starter; power steering pump and alternator (I figured to make the bottom of the engine narrower); intak...

Bellhousing & Clutch fork removal

Removing the bellhousing from the Porsche 944 engine is not as complicated as it may seem - such as in this situation with my replacement engine. When I removed the original engine I detached it from the bellhousing in the car and removed the clutch pressure plate bolts through the starter motor hole - see my other post for details . In this case I decided to remove the clutch fork pivot shaft bolt. Begin by removing the four 17mm bellhousing bolts - you'll find that the bellhousing doesn't detach completely from the engine. It'll feel like its hooking on something. That something is the clutch fork pivot shaft inside the bellhousing. The bellhousing will be loose enough to rotate - turn it 180 degrees and peek through the access port which is now on top - this is what you'll see: If the engine is still in car you'll be looking at this from underneath. The pivot shaft needs to be extracted from the clutch fork. It's held in place by a small bolt on the...

New Steering shaft bearing Nightmare removal

In my quest to tighten up the handling on the 944, I bought a new Needle Bearing from Porsche in an attempt to eliminate the fore-aft play in the steering at the top universal joint. The part number for the replacement is 477.419.059 and costs £88.86 posted from an OPC. Nothing like the effort required to actually remove the old one... I began the process by reading section 48 of Porsche Workshop manual. It appeared a simple enough process but two things bothered me: firstly, it required a chisel to remove a shear bolt (which in my limited experience never "shear"; and secondly a drill to remove two screws from the ignition lock. I was bothered because a quick look under the dashboard made it quite obvious that whoever had written the manual hadn't performed this task - well not without a dashboard in place that's for sure. I was bothered before I'd even started. Furthermore, the manual doesn't detail the replacement of this bearing at all - just the rem...

Living with a Porsche 944

Search This Blog