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It is so difficult to tell from recordings due to the quality of the recording and reproduction systems but I can't say that I can hear anything particularly untoward.
The most common problem with the earlier 5.0 tensioners is the alloy insert which forms the pad against which the hydraulic tensioner operates. Being relatively soft, this wears until the tensioner runs out of travel. Why JLR thought that saving a few grams by not using a steel insert was a good idea is beyond me.
You were spot on Richard,
I hope others will learn from my mistakes.
My chain rattle was very very light
and only on cold start.. into the shop tomorrow
this is beyond my expertise although the motor cranks just fine
the PCM wont allow spark cause the timing is too far off.
I also feel for you with this issue and I so much appreciate that you keep us updated on this.
I understand your car suffering this issue is a 2010 XK. Not sure you mentioned your mileage though - I would be very interested to know at what mileage you started to notice the chain noise issue on startup.
Not without reason I am following here with great interest. I drive a 2011 XK with approx. 35k miles on the odo (it has the narrow version of the chain as visible trough the oil filler hole, see pictures above).
UPDATE, my mechanic suspects injector failure,
and not timing chain, I did do the valve cover gaskets
and clean injectors mechanically 3 weeks ago.
Upon stalling I had tons of smoke out the exhaust.
which is why he suspects injector failure, (common)
I will update after he does a compression test and inspects
The valves and injectors.
UPDATE, my mechanic suspects injector failure,
and not timing chain, I did do the valve cover gaskets
and clean injectors mechanically 3 weeks ago.
Upon stalling I had tons of smoke out the exhaust.
which is why he suspects injector failure, (common)
I will update after he does a compression test and inspects
The valves and injectors.
If the exhaust smoke was black, then yeah, probably injector.
As a caveat to that, all the raw fuel in the exhaust can easily foul the catalytic converter. Watch for codes once your car is running again. Also maybe as a pre-emptive, run a can or two of Catalytic Converter Cleaner through the fuel.
Pulled spark plugs from cylinder 1 and 2 on drivers US side,
heres what I got any thoughts?
Im changing all the spark plugs and 1 bank of injectors
apparently removing injectors with the alide hammer is
detremental to your injectors
Im back up and running and my fuel trims on one bank
have zerod out at idle. Amazing. 70k miles original plugs after injector failure and engine flood.
Pulled spark plugs from cylinder 1 and 2 on drivers US side,
heres what I got any thoughts?
Im changing all the spark plugs and 1 bank of injectors
apparently removing injectors with the alide hammer is
detremental to your injectors
Im back up and running and my fuel trims on one bank
have zerod out at idle. Amazing. 70k miles original plugs after injector failure and engine flood.
