Can a 1999 XK8 have chain tensioner problems?
This topic is for discussion of chain tensioner problems on some of the older XK models, and how you deal with them. 1997-1999 XK8s can suffer from timing chain tensioner problems. A 2000 model would be better while 2003-2006 are the best. 2003 XKs had over 900 changes. I just spent $4200 to replace the tensioners, chains, etc on my 1999 XK8.
How much does it cost to replace chain tensioner on Jaguar XK?
Part of my sale included resolution of all existing mechanical issues. One of the mechanical symptoms was: when the engine was cold there was a valve ticking noise. Sure enough, the timing chains, tensioners, blade, guide, several seals and gaskets were replaced. $840 for parts, $1,300 for labor. Warranty paid for it all!
Why are my cam chain tensioners breaking on my Jaguar?
(The new 4.2L version of the Jaguar AJ-V8 engine has double timing chains.) As a result of their weak design and other factors like engine overheating or poor maintenance, the plastic cam chain tensioners on 1997 to 2000 V8 Jaguars began to experience stress fractures, and so did some of the plastic guides.
What kind of tensioner do you use on a Jaguar?
We now use the metal-based third-generation tensioners exclusively when replacing cracked first- and second-generation Jaguar V8 tensioners. When a plastic tensioner shatters or wears to the point the cam chain becomes loose, a rattling around can be heard in the cam area at the front of the engine.
This topic is for discussion of chain tensioner problems on some of the older XK models, and how you deal with them. 1997-1999 XK8s can suffer from timing chain tensioner problems. A 2000 model would be better while 2003-2006 are the best. 2003 XKs had over 900 changes. I just spent $4200 to replace the tensioners, chains, etc on my 1999 XK8.
Part of my sale included resolution of all existing mechanical issues. One of the mechanical symptoms was: when the engine was cold there was a valve ticking noise. Sure enough, the timing chains, tensioners, blade, guide, several seals and gaskets were replaced. $840 for parts, $1,300 for labor. Warranty paid for it all!
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.
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.
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.
We now use the metal-based third-generation tensioners exclusively when replacing cracked first- and second-generation Jaguar V8 tensioners. When a plastic tensioner shatters or wears to the point the cam chain becomes loose, a rattling around can be heard in the cam area at the front of the engine.