Where is the timing chain located on a Jaguar?
Assemble the VVT unit, the exhaust camshaft sprocket and the secondary chain. Then, position the assembly to the camshaft. Make sure to place the chain correctly over the tensioner. Next, place the VVT unit into the intake and the sprocket inside the camshaft.
Where is the chain tensioner on a Jaguar?
Lodge the chain tensioning tool to the exhaust camshaft sprocket. Then, place the chain on the crankshaft and the VVT unit sprockets. Make sure there is no space on the drive side of the chain for any movement. Also, ensure the VVT is not turned on the camshaft. Next, install the primary chain tensioner blade and position the tensioner assembly.
What causes a 2004 XJ8 Jaguar timing chain rattling noise?
What could cause a 2004 XJ8 Jaguar to produce a timing chain rattling noise? This could be from a damaged intake cam gear variable valve timing (VVT) unit. The spring inside the unit could be at fault causing this noise. The best option is to replace the entire VVT assembly as it cannot be replaced in parts.
What do you need to know about timing chain replacement?
Also verify that your model is equipped with a timing chain and not a timing belt. These two parts perform the same task, but replacing them can be quite different. This procedure is only for replacing a timing chain. Clean the engine with the proper degreaser thoroughly before beginning.
Assemble the VVT unit, the exhaust camshaft sprocket and the secondary chain. Then, position the assembly to the camshaft. Make sure to place the chain correctly over the tensioner. Next, place the VVT unit into the intake and the sprocket inside the camshaft.
Lodge the chain tensioning tool to the exhaust camshaft sprocket. Then, place the chain on the crankshaft and the VVT unit sprockets. Make sure there is no space on the drive side of the chain for any movement. Also, ensure the VVT is not turned on the camshaft. Next, install the primary chain tensioner blade and position the tensioner assembly.
What could cause a 2004 XJ8 Jaguar to produce a timing chain rattling noise? This could be from a damaged intake cam gear variable valve timing (VVT) unit. The spring inside the unit could be at fault causing this noise. The best option is to replace the entire VVT assembly as it cannot be replaced in parts.
Why does my Jaguar make a knocking noise?
Read below where Experts online have provided answers to owners’ questions about Jaguar timing chain issues. What could cause a Jaguar to make a knocking noise on a cold start up? This could be due to a cracked timing chain tensioner and guide. The best way out is to inspect the plastic inside the valve covers for any crack.
What was the problem with the chain tensioner on my 1998 Jaguar?
Nalley of Roswell, GA, Thsi tensioner thing is a real problem. I have a 1998 VDP with the 4.0 liter engine. With the car out of warranty and with 69000 miles on the engine, one of the chain tensioners failed, resulting in one of the valves punching through a piston.
What causes the chain to bind on a Jaguar?
Turn the crankshaft in a clockwise direction until the triangular arrow indent on the drive plate is exposed through the access hole. Additionally, avoid spinning the crankshaft in the opposite direction. This causes the chain to bind leading to an engine damage.
How does a chain tensioner work on a JAG?
That’s an expensive failure. Gwen – The Jag V8 you have uses a chain drive (like a bicycle chain) to drive the cams that open and close the engine’s valves. The tensioners keep the chain tight so it doesn’t flop around; they work like the spring loaded derailleur on a bike.
Nalley of Roswell, GA, Thsi tensioner thing is a real problem. I have a 1998 VDP with the 4.0 liter engine. With the car out of warranty and with 69000 miles on the engine, one of the chain tensioners failed, resulting in one of the valves punching through a piston.
Turn the crankshaft in a clockwise direction until the triangular arrow indent on the drive plate is exposed through the access hole. Additionally, avoid spinning the crankshaft in the opposite direction. This causes the chain to bind leading to an engine damage.
That’s an expensive failure. Gwen – The Jag V8 you have uses a chain drive (like a bicycle chain) to drive the cams that open and close the engine’s valves. The tensioners keep the chain tight so it doesn’t flop around; they work like the spring loaded derailleur on a bike.