Timing belt or chain?
#1
Timing belt or chain?
Trying to gather some facts before a purchase.
I am just trying to get a feel for what an X-type engine will need for maintence. As noted in a previous post I am used to 45k mile Timing belt change intervals on my Porsche 944. I know the Jag shares a basic block with the Ford Modeo. So I ask is there a timing chain or belt? On either one are the parts that should demand special attention? Like on my 944S2 the cam chain tensioner tying the intake cam and exhaust cam was usually the culprit in cam failures.
Does the Jag X-type 3.0L had any variable valve timing or cam timing?
What is the compression of the 3.0L?
Any Achilles heel for the Jag engine? I know in BMW's I-6's it is usually the H20 pump and radiator.
Thank you kindly for all the time and help!
~ Charles
I am just trying to get a feel for what an X-type engine will need for maintence. As noted in a previous post I am used to 45k mile Timing belt change intervals on my Porsche 944. I know the Jag shares a basic block with the Ford Modeo. So I ask is there a timing chain or belt? On either one are the parts that should demand special attention? Like on my 944S2 the cam chain tensioner tying the intake cam and exhaust cam was usually the culprit in cam failures.
Does the Jag X-type 3.0L had any variable valve timing or cam timing?
What is the compression of the 3.0L?
Any Achilles heel for the Jag engine? I know in BMW's I-6's it is usually the H20 pump and radiator.
Thank you kindly for all the time and help!
~ Charles
#3
RE: Timing belt or chain?
The 2.0, 2.5 and 3.0 litre 24 valve V6 engines have four overhead camshafts and are driven by two timing chains. All three engines incorporate electronic engine management with distributorless ignition system, sequential electronic fuel injection. All three have two catalytic converters in the exhaust system which includes two oxygen sensors and two catalytic monitor sensors.Viewed from the rear of the engine, the right-hand cylinder bank is numbered 5,3,1 and the left-hand cylinder bank is numbered 6,4,2.The engines include the following:
10.75:1 compression ratio on the 2.0 litre engine.
10.3:1 Compression ratio on the 2.5 litre engine.
10.5:1 Compression ratio on the 3.0 litre engine.
3 Stage variable geometry intake manifold.
Lightweight valve gear.
Unique camshaft lift and duration.
Single knock sensor engine management control.
Continuous variable camshaft timing (VCT) system.
Twin mass flywheel (manual transmission).
Variable Intake System (V.I.S).
The variable intake system consists of a three stage upper intake manifold assembly, two position electronically driven gate valves and an engine management powertrain control system.The powertrain control module switches the intake manifold tuning valves between fully open and fully closed at calibrated engine speeds.The intake manifold efficiency is therefore increased which will also increase the engine torque and engine performance.
10.75:1 compression ratio on the 2.0 litre engine.
10.3:1 Compression ratio on the 2.5 litre engine.
10.5:1 Compression ratio on the 3.0 litre engine.
3 Stage variable geometry intake manifold.
Lightweight valve gear.
Unique camshaft lift and duration.
Single knock sensor engine management control.
Continuous variable camshaft timing (VCT) system.
Twin mass flywheel (manual transmission).
Variable Intake System (V.I.S).
The variable intake system consists of a three stage upper intake manifold assembly, two position electronically driven gate valves and an engine management powertrain control system.The powertrain control module switches the intake manifold tuning valves between fully open and fully closed at calibrated engine speeds.The intake manifold efficiency is therefore increased which will also increase the engine torque and engine performance.
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#8
RE: Timing belt or chain?
ORIGINAL: jasonzimbran
Buy a brand new 2007 Jaguar x-type 3.0 AWD. They probably have great deals since itsa leftover. Also you wont have to worry about doing repairs to the car for at least 4 years 50k miles. If anyone has the chance always try to get into a brand new car.
Buy a brand new 2007 Jaguar x-type 3.0 AWD. They probably have great deals since itsa leftover. Also you wont have to worry about doing repairs to the car for at least 4 years 50k miles. If anyone has the chance always try to get into a brand new car.
If I could have still gotten the X-Type brand new with a manual tranny and a sport package without the chrome, then I'd be all in for one. Otherwise, no.
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#11
Jim, I don't think your info is quite right.
If you're talking Petrol engines, they're all variations of the AJ-V6 engine:
Jaguar AJ-V6 engine - Wikipedia, the free encyclopedia, and they all use chains.
If you're talking Diesel, then the 2.7 was never fitted to the X-Type, however the 2.0 and 2.2 were:
Ford Duratorq engine - Wikipedia, the free encyclopedia
Rgds
Rob
If you're talking Petrol engines, they're all variations of the AJ-V6 engine:
Jaguar AJ-V6 engine - Wikipedia, the free encyclopedia, and they all use chains.
If you're talking Diesel, then the 2.7 was never fitted to the X-Type, however the 2.0 and 2.2 were:
Ford Duratorq engine - Wikipedia, the free encyclopedia
Rgds
Rob
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