Will low compression on a single cylinder cause an engine not to start?
It’s easy to see how low compression could create a problem for a motor vehicle. If you have car engine compression problems, your car will either misfire when you start the engine, perform poorly or, if you have low or no compression in all cylinders, won’t start at all.
Are there cylinder linings in a Jaguar XK8?
There’s a dark secret within the engine bay of pre-2000 model year Jaguar XK8s. If you’ve got Nikasil cylinder linings, there’s a few things you need to watch out for…
Can a Nikasil cylinder lining still be in a Jaguar?
If the engine number and the lack of an official Jaguar plate leads you to suspect Nikasil is still present within the engine, all may not be lost. This is where it pays to assess the other merits the vehicle has to offer as well as try to establish where the car has been driven. If playback doesn’t begin shortly, try restarting your device.
Is it OK to walk away from a Jaguar XK8?
Some would advise walking away, but if your chosen XK8/XKR is otherwise boasting particularly strong condition, other than this niggle, cautious assessment could potentially bag you an excellent example of the model.
What do the VIN numbers mean on a Jaguar XK8?
First, look for the VIN to check what you’re dealing with – a six-digit sequence at the end of the VIN indicates Nikasil liners while five-digits mean steel liners are fitted.
What is the compression ratio of a Jaguar?
If we take 8.9:1 and 14.7psi for example, you get 130.8 psi I’ve heard that if you multiply the compression ratio by atmospheric pressure you should get a result. If we take 8.9:1 and 14.7psi for example, you get 130.8 psi
What’s the CR of a Jaguar XKR 4.0 AJ27?
I’m fairly sure the XKR 4.0 AJ27 has a CR of 8.9, which is low, and different to the normally-aspirated XK8.
How does a check valve affect engine compression?
Also bear in mind that the length of tube running from spark plug hole to gauge will alter i.e. reduce the CR possibly by 10% or so when you consider the pipe length and ID. Finally consider that the gauge has a check valve, so the measurement is cumulative, so not pure measurement of a single cycle.