What kind of hydraulic hose does a Jaguar XK8 use?
This information on the hydraulic hose, latch and lifts and will cover XK8 XKR MY 1997 to 2006. Several years ago I had a hydraulic hose fail that operates my roof on my 1999 xk8.
Why does my Jaguar XK8 not leak oil?
But they do not always leak, because the chunks of congealed oil act as leak-plugs, which means the problem worsens with age, while remaining invisible. All that changes when the fluid is flushed.
Where to find chf11s fluid in Jaguar XK8?
The first clue can be seen in one of the pump reservoirs, shown after thorough flushing and change to CHF11S fluid. You can see the fresh CHF fluid as green liquid in the bottom of the reservoir. Above that, lining the bottom of the reservoir, you see a slimy mix of the two fluids.
Are there any issues with the Jaguar XK8 convertible top?
I’ve written a few articles about the issues with Jaguar XK8 Convertible top hydraulics over the years. I’d like to begin by referencing Jaguar’s own technical service bulletin on this topic – Issue: early XK8 Convertibles may experience slow operation of the convertible top, or slow or erratic operation of the latch.
This information on the hydraulic hose, latch and lifts and will cover XK8 XKR MY 1997 to 2006. Several years ago I had a hydraulic hose fail that operates my roof on my 1999 xk8.
How to install a hydraulic pump on a Jaguar XK?
Put the catch pan on top of the folded fascia to hold the pump assembly during installation. a. Use the T30 bit with a ¼ drive socket (or right angle T30 if available) to remove the two screws that hold the pump in place. b. Make note of the hydraulic oil level in the tank. It should be between the two lines on the tank.
What kind of oil is in Jaguar XK8?
At the front of the reservoir is a hard lump of what started out as Jaguar hydraulic oil, circa 1998. We already know the old hydraulic fluid was prone to thicken and solidify in chunks. What we now know is that those chunks get into the seals of the rams and latch, and chew them up.
Are there any problems with the Jaguar XK8?
During the past six months three early XK8 Jaguar convertibles came into Robison Service with slow convertible top complaints. Two cars were leak free; the third was showing the familiar hydraulic oil drip from the header bar.
How does a one stage pump work on a Jaguar?
They are using a pump that operates off non-concentric rings, sort of like a wankel engine. Pressure is created when the rings come together and suction when they are apart. The value is that it generates high pressure with low volumetric flow in a one stage pump. This is not possible with a 12V motor using more convention types of pump.
Where are the passages in a Jaguar engine?
The passages are buried in the pump body and I will use compressed air to trace them out. They are using a pump that operates off non-concentric rings, sort of like a wankel engine. Pressure is created when the rings come together and suction when they are apart.
Where are the cylinder liners on a Jaguar XK8?
This was particularly true for owners who primarily made only short journeys with their XK8/XKR and thus did not get the engine regularly up to optimal temperature. If your XK8/XKR is pre-2000, it is highly likely that Nikasil cylinder liners were originally installed in the engine bay.
Why does my Jaguar XK8 engine not start?
And you’ve learned (the hard way ) to always run the engine up to temperature before switching off – it’s a known “feature” of these engines, apparently. This is the ‘start/stop syndrome’ that has plagued 6 and now 8 cylinder Jaguars for years. The flooded cylinders cause loss of compression by thinning piston ring lubrication.
What to look for in a Jaguar XK8?
Instead of jumping in to assess the proficiency and overall condition of various components under the bonnet when viewing a Jaguar XK8 or XKR, start with the basics of establishing the year of manufacture, alongside its engine number. This will ascertain whether or not Nikasil cylinder liners were fitted in your engine.
Are there cylinder linings in a Jaguar XK8?
There’s a dark secret within the engine bay of pre-2000 model year Jaguar XK8s. If you’ve got Nikasil cylinder linings, there’s a few things you need to watch out for…
And you’ve learned (the hard way ) to always run the engine up to temperature before switching off – it’s a known “feature” of these engines, apparently. This is the ‘start/stop syndrome’ that has plagued 6 and now 8 cylinder Jaguars for years. The flooded cylinders cause loss of compression by thinning piston ring lubrication.
What did sulphuric acid do to Jaguar XK8?
The sulphuric acid ate away at the Nikasil lining, allowing the piston rings to score the cylinder walls and lead to low compression. This disappointed Jaguar immensely, for this was the very problem they’d been trying to avoid when opting for Nikasil over aluminium linings.
When did Jaguar stop using Nikasil cylinder liners?
Jaguar replaced Nikasil with steel liners after 2000 and therefore vehicles from this year onwards should be relatively safe bets. So, does that mean you should reject a pre-2000 XK8/XKR entirely?
What was the problem with the Jaguar XK8?
Unfortunately this coating led to problems, as the high level of sulphur in ‘Nineties fuel turned to acid during the combustion process and corroded the coating. This led to a serious loss of combustion, the only cure being a new engine and affected all XK8 V8 units to 2000 (VIN 042775).
Can you play Jaguar XK8 tuning EP 1 on YouTube?
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Is it worth buying a Jaguar XK8 convertible?
With the cost of fine examples of these very useable 155mph grand tourers now equalling that of an oh-so-boring secondhand Euro hatch, XK8 ownership – whether a coupé or convertible – has never been more affordable.
Can you change the hydraulic fluid in the XK8?
XK8 convertable roof fluid…. Has anybody got any experience of changing the hydraulic fluid in the XK8’s roof mechanism? A friend has an early XK8 nad is having problems with the roof and thinks that changing the fluid is the solution……
How to upgrade the convertible top on a Jaguar XK8?
Jaguar XK/XKR Hydraulic Convertible Top Upgrade Instructions Background Information: This upgrade kit is designed for the Jaguar XK8/XKR model years 1996-2005. The automatic convertible top in these model years is operated by a hydraulic system manufactured for Jaguar by the Power Packer company.
At the front of the reservoir is a hard lump of what started out as Jaguar hydraulic oil, circa 1998. We already know the old hydraulic fluid was prone to thicken and solidify in chunks. What we now know is that those chunks get into the seals of the rams and latch, and chew them up.
XK8 convertable roof fluid…. Has anybody got any experience of changing the hydraulic fluid in the XK8’s roof mechanism? A friend has an early XK8 nad is having problems with the roof and thinks that changing the fluid is the solution……
Why is my Jaguar XK8 convertible top slow?
Issue: early XK8 Convertibles may experience slow operation of the convertible top, or slow or erratic operation of the latch. These conditions are caused by a tendency of the Univis hydraulic fluid in the system to slowly evaporate, and in certain conditions to gel within the hydraulic system pipes and hoses.
What to do about roof latch on Jaguar XK8?
Lubrication of the ram shafts can be done by spraying WD40 on a rag and rub it on the ram shaft and this can be done when the roof is in the closed position. The roof goes up to the latch but the latch does not grab the roof and close or the latch opens and the roof will not pull back to open.
What causes a slow leak on a Jaguar XK8?
A slow leak could be caused by a hose connector beginning to fail or a ram shaft seal that has been dislodged all due to high pressure. When you see a green fluid in the header light or in the rear tire wheel well (it would be a moist area forward of the tire) it is a sign of a leak.
A slow leak could be caused by a hose connector beginning to fail or a ram shaft seal that has been dislodged all due to high pressure. When you see a green fluid in the header light or in the rear tire wheel well (it would be a moist area forward of the tire) it is a sign of a leak.
Lubrication of the ram shafts can be done by spraying WD40 on a rag and rub it on the ram shaft and this can be done when the roof is in the closed position. The roof goes up to the latch but the latch does not grab the roof and close or the latch opens and the roof will not pull back to open.
What causes oil leak on Jaguar XK roof?
The leak occurs in the seals that ride on the shaft as it goes in and out to raise and lower the top. A quantity of oil is lost during each roof operation. Jaguar XK Hydraulic Upgrade Kit Contents:
What should I do if my XK8 convertible top leaks?
The lesson for owners of pre-2000 XK8 convertibles: If you have trouble with the top, be prepared for the possibility of leaks after flush, and if that happens, rebuild the whole thing and have done with it because the alternative will be replacing everything one part at a time, which will cost you a lot more in the end.
What kind of hydraulic system does a Jaguar XK8 have?
Hydraulic System Upgrade for 1996-2006 Jaguar XKR/XK8. Hydraulic System Upgrade for your 1996-2006 Jaguar XKR/XK8, excluding pump. Includes Rebuild Service for the set of 3 Hydraulic Cylinders/Rams, and a Full Set of 6 Replacement Hydraulic Lines/Hoses.
How to repair a Jaguar XK convertible top?
The ’07 and up XK convertible top is completely different from the ’97-’06 cars Removed the rear seat 2 nuts located at the floor, and rear seat back 2 screws at the bottom. Removed both left and right rear cushion over the top of the speakers. 3 screws each. Removed both speaker covers left and right.
How many hydraulic cylinders are in a Jaguar convertible?
We currently upgrade Jaguar convertible hydraulic cylinders for the 1996-2006 XK8/XKR models with their high-pressure systems containing two top lift cylinders and one latch cylinder, plus six hydraulic hoses. The rod seals used for the cylinder rebuild/upgrade are far superior to the original ones in geometry, size and material choice.
How do you replace a Hyd latch on a Jaguar?
Drop the assembly. If you replace the latch you will need the key wrench to manually lock the latch. In doing so you put the pin you need to remove in position. Remove the C clip and pin. Open the linkage over the top of the Hyd latch and remove the Hyd latch.
How much does it cost to rebuild a Jaguar top hydraulic system?
Pump rebuild/upgrade service is available separately. Order a complete, upgraded Jaguar XK/XKR top hydraulic system from our inventory for $2,699 plus $2000 refundable deposit. Includes the full set of cylinders, the hydraulic pump unit PLUS a new full set of Top Hydraulics’ upgraded hydraulic hoses.
How long does it take to rebuild Jaguar cylinders?
Core Exchange is currently NOT available for Jaguar cylinders. Once we receive your cylinders, the turn around time for Jaguar cylinders is up to two days for rebuild service, and we will ship the cylinders back to you by Priority U.S. Mail (2-3 days domestic delivery time). We ship internationally on a daily basis.
During the past six months three early XK8 Jaguar convertibles came into Robison Service with slow convertible top complaints. Two cars were leak free; the third was showing the familiar hydraulic oil drip from the header bar.
We currently upgrade Jaguar convertible hydraulic cylinders for the 1996-2006 XK8/XKR models with their high-pressure systems containing two top lift cylinders and one latch cylinder, plus six hydraulic hoses. The rod seals used for the cylinder rebuild/upgrade are far superior to the original ones in geometry, size and material choice.
Jaguar XK/XKR Hydraulic Convertible Top Upgrade Instructions Background Information: This upgrade kit is designed for the Jaguar XK8/XKR model years 1996-2005. The automatic convertible top in these model years is operated by a hydraulic system manufactured for Jaguar by the Power Packer company.
Why is my Jaguar XK hydraulic top not working?
If the reservoir level is persistently going down and requires periodic attention, then the cause is probably a leaking lift cylinder. The leak occurs in the seals that ride on the shaft as it goes in and out to raise and lower the top. A quantity of oil is lost during each roof operation. Jaguar XK Hydraulic Upgrade Kit Contents: