EST VK

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Page created by T June 16th 2007:
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Distributor and Coil from an EST VK (6 Cylinder) Commodore. Note the Distributor body is very thin because it does not hold any balance weights and there is no provision for fitting a Vacuum Advance Unit. Click to Enlargen. Photo by Kenscars.

1 EST VK:

[edit] EST VK:

Electronic Spark Timing was fitted to Carburettor 6 Cylinder VK Commodores. EFI VK Commodores do not use EST. They use a Distributor with Balance Weights and a Vacuum Advance Module similar to those used in VC, VH,WB 6 Cylinder Engines.
See also Bosch EST.

EST VK Engine. Note the Air Injection Pipes. Click to Enlargen. Photo by Tom1569.	EST VK Engine. Click to Enlargen. Photo by Tom1569.	EST VK Engine. Click to Enlargen. Photo by Tom1569.
I always like to clean the threads on the manifold studs to remove burrs and rust. This ensures a smooth torquing of the nut, and maximum "pull down" as opposed to the nut binding which is not desirable. I'm using a 3/8" UNF Nut die for the job LMH. The image also shows the Air Injection holes drilled, threaded and leading into each exhaust port. Click to Enlargen. Photo and info by LMH.	Everything is ready. Gasket surfaces are clean, block painted to re seal the metal after years of leaks and spillages. Grub screws are installed in the air injector ports, and brass block-offs in the old TVS (Thermal Vacuum Switch) ports. LMH. Click to Enlargen. Photo and info by LMH.	The manifolds have now been installed and the Weber adaptor installed. Note I still use the Varajet heat shield. Don't forget to use a gasket both bottom and top side of the heat shield. I have installed 3 Weber base gaskets to ensure the linkages clear the adaptor. This may seem a little dodgey but in practice it actually works very well. In previous installations I have had several years usage without any problems. These are a very dense gasket, and act as a good heat insulator as well. LMH. Click to Enlargen. Photo and info by LMH.
The Photo shows the EST Crankshaft has a Dowel for positioning the Flywheel so that the Trigger Magnets will be precisely positioned. Click to Enlargen. Photo by Stuart.	EST VK 3.3 Engine. Click to Enlargen. Photo and Info by Stuart.	The Crankshaft Boltholes are drilled offset meaning the Flywheel of Flexplate can only be fitted in one position. That's true for any red/blue/black 6. Click to Enlargen. Photo by Stuart.
	EST VK Commodore. The Smog Pump can be seen on the right hand side of the Engine. Click to Enlargen. Photo by Kyle.

L P Trimatic Half Bellhousing from a 6 Cyl EST VK Commodore. Note the Hole in the Top for the Speed Sensor. This is the only Trimatic to have the Top Hole and use a Speed Sensor. Click to Enlargen. Photo by 383HGBrougham.