QUOTE(porschetub @ Dec 3 2019, 08:34 PM)
QUOTE(bdstone914 @ Dec 4 2019, 10:58 AM)
@Willisbegood 0 compression on one cyl? What are the numbers on all four?
Might be time for a rebuild.
These motors do not use head gaskets. They were used at the factory but discontinued use.
Before you drop the engine check the valve train for problems that could cause the compression loss.
Forget the race motor. It is a type I and does not fit a 914.
And t b.f at is not a good street motor.
Seem to remember the head gaskets were deleted as per service letter around 1990,my point was that there will be people that fitted them because they are in the gasket sets and not all know they are not suitable.
The service bulletin you refer to was for the VW bus, it has nothing to do with any 914. It does not even mention the 914 in the bulletin.
Most of us do not have the skills needed to properly setup a Type IV without the head gaskets. To do so requires lapping the cylinders into the head, and making sure the deck height is exactly the same on both cylinders so they seal correctly. Using the head gaskets insures a good seal between the head and the cylinders when the deck height is not perfect between the two cylinders.
I know someone is going to say Jake Raby doesn't use them. But Jake has a huge machine shop, all the correct tools, and is very, very picky when doing the machine work.
Do you have the same facilities, tools, and skills as Jake? I know I don't. I use the head gaskets, and I have for all 410K miles in Betty's car.