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When the water rail hose splits/fails you need to STOP THE ENGINE!!!!!!!!!!
It is sometimes referred to as the B@$T@rd hose or MF hose because of it's location and difficulty to replace.
Customer had his XJR wreckered to me with no compression in several cylinders.
Pristine 1996 XJR is now on the brink of being a victim of a financial quandary.
I thought it might just need a cylinder head repair/replace but when I removed the head today I was surprised at the damage. Never saw AJ16 piston with so much heat damage. Even aluminum 'splatter' and melted cylinder liner damage.
I need to call and find out how far I need to go with this repair.
This car might need a new home with a DIY engine replacement.
Maybe a good-used engine will be within the budget??
The car is otherwise in great condition as far as paint/interior is concerned.
I hope it does not go to the scrap yard!!!
He said he knew the engine was overheating but did not think it was that hot!!!
Oh dear, certainly the temperature needle and red light would have served as sufficient warning. Looks like the engine now would need a complete overhaul to be on the safe side, but a complete engine replacement may be a better option in terms of time and cost.
Oh dear, certainly the temperature needle and red light would have served as sufficient warning. Looks like the engine now would need a complete overhaul to be on the safe side, but a complete engine replacement may be a better option in terms of time and cost.
The problem is I don't think pistons are available any more, except as custom one-offs.
The gauge may not show anything, as when the coolant is dumped out there is nothing touching the gauge sender any more. It might actually show the temp going down since it's no longer in contact with the coolant.
He is now 'on-the-fence' about repairing or selling the car. It is too nice to scrap but he has had the car since 1999 and has many repairs and a lot of money invested.
He is looking at a 1999 XJR in Florida with low mileage and is aware of the timing chain faults.
I am still waiting for his decision.
aholbro1 is showing an interest so hopefully it will be resurrected and become driveable again.
A few USED REPLACEMENT engines have been located. Replacement pistons are NLA from Jaguar and I am not going to spend a lot of time having some made and then deal with relining that cylinder etc.
This car gets a good-used engine or it leaves my shop to get repairs done elsewhere.
The engine crankshaft is likely one of the only major block components worth salvaging. The cams and chains are probably OK also.
All this drama with overheats can be avoided with the installation of a simple thermal switch & buzzer as described in my attachment.
Having a family of four daughters with cars over the years I have used this simple idea on various vehicles.
Here in Australia there is a kit available called "Engine Guard" which performs similar duty, a worthwhile fitting for those who tend to not like or take too much notice of the modern engine temperature gauges.
Many of the newer cars have reverted back to just engine temp. lights which really may be even better than a gauge if the warning light is big & prominent.
08-03-2017, 08:40 PM
When the water rail hose pops!!!!!!!!!!!
