Where do you find the dead center mark on an engine?
For most engines, the zero or top dead center mark will be the first mark, or will be clearly marked in a different color or manner than the other marks on the pulley. Note: If you are unsure of which mark indicates your engine’s top dead center, refer to a service manual to ensure that the engine is turned to the correct position.
Can a top chain tensioner be replaced on a Jaguars?
You MIGHT get away with just replacing the top chain tensioner which can be replaced without excessive dismantling. Firstly, Jaguars were not designed to be easy to repair? discover why the apparently simple task of checking the timing chains is far from simple.
How to remove chain guide on Jaguar XJ6?
Remove the secondary chain tensioner held by two bolts (note wrong bolts in picture – they should be flanged head bolts M8 x 25mm – and are now!). It should have an arrow pointing upwards, and can only be removed after the camshaft position sensor has been removed – remove carefully as the piston will be expanded on the end!
Is it easy to repair a Jaguar timing chain?
Firstly, Jaguars were not designed to be easy to repair? discover why the apparently simple task of checking the timing chains is far from simple. Do use 6 point sockets to start the 10mm bolts – the bolts are often in so tight the standard 12 point sockets started to slip on the heads. The preliminaries
You MIGHT get away with just replacing the top chain tensioner which can be replaced without excessive dismantling. Firstly, Jaguars were not designed to be easy to repair? discover why the apparently simple task of checking the timing chains is far from simple.
How is the chain on a Jaguar XJ6?
The damper on the tension (right) side of the chain is straight and fixed. The chain is slack and has dropped in the picture, take care NOT TO TURN THE ENGINE in case it jumps a sprocket. Looked at end-on you can clearly see the amount of wear on this tensioner. The new tensioner looked much better! this shows both secondary guides.
How do you find the dead center on an engine?
Usually it can be found by looking at timing marks; but on some engines these marks may be lost or hidden. Fortunately there’s an easy way to discover top dead center without the use of any timing marks. So, Being able to accurately find Top Dead Center (TDC) is a critical step; no matter what engine you are working with.
Can you hook behind the timing chain on a Jaguar?
You can’t hook behind it because it is flush to the sprocket. Two alternatives – either get it off somehow; or remove the timing cover!!!