GD427 MK IV

GD427 MK IV
What my car should look like when finished - Stoneleigh 2015

Thursday, 2 May 2024

Engine Detailing

I always wanted something to cover the ignition coils on the engine, but I wasn't too sure about the normal fibreglass covers.  I have seen a few people using classic rocker covers so I saw a cheap set on eBay and went for them.

Once they arrived, they looked good.  I removed the original covers to replace them with the new versions.  I had to transfer the vent pipes for my oil catch cans, but these just pulled out and pressed into the new ones (A tight fit).  I bolted the new covers down complete with new oils seals.

I set the covers on the top of the coils to see what it will look like - it will look good, but will require some modifications...

On the drivers side, GD have a bracket where the Vectra steering column fits to - I don't need it so it will have to be cut off since the new covers can't go on with it in place.  Also, the drivers side rear coil pack points directly at the chassis and so will need to be rotated slightly for the ignition leads to clear.

The cover has holes for the coil packs to go through, but even the dipstick will prevent the cover from going on!

I decided to machine out the holes to complete openings so that the cover can be lowered straight down with the coil packs connected.  You can't see the holes anyway.

I put the covers to a friend who has a CNC machine who machined the holes out for me.  Once bolted in place I think it simplifies the engine bay.


Vectra Bracket needs to go!

Dipstick prevents cover from going on




Bracket Removed - Could have been neater


Before Covers

Cleaner look


Machined openings

Bracket installed to rotate coil for wire clearance



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