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My 1987 3.6 Sovereign

Indiana_Jones
Posts: 79
Joined: Wed Sep 14, 2016 9:46 pm
Location: New Zealand

Re: My 1987 3.6 Sovereign

Postby Indiana_Jones » Mon May 27, 2019 11:21 am

Tried additional bleeding, but no joy. Next step is to check the HSMO level, though the green is showing on the window.

With the accumulator and switch, can this become stuck?
1987 3.6 Auto Sovereign 506111

naki_k
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Location: Kirton, nr Boston, Lincolnshire

Re: My 1987 3.6 Sovereign

Postby naki_k » Mon May 27, 2019 6:13 pm

Indiana_Jones wrote:Tried additional bleeding, but no joy. Next step is to check the HSMO level, though the green is showing on the window.

With the accumulator and switch, can this become stuck?


Accumulator sphere- these can loose their gas pressure.

Pressure switches- well known to fail and/ or leak fluid through the rear of the switch. Though sometimes it’s only the O- ring on the front of the switch, which can be easily renewed.
Last edited by naki_k on Fri May 31, 2019 10:04 am, edited 1 time in total.
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

Indiana_Jones
Posts: 79
Joined: Wed Sep 14, 2016 9:46 pm
Location: New Zealand

Re: My 1987 3.6 Sovereign

Postby Indiana_Jones » Mon May 27, 2019 9:36 pm

Cheers mate, so in that case, I'm guessing the switch needs to be removed from the car and then o-ring renewed, which one might as well renew the accumulator at the same time?

Sorry for all the questions, just trying to figure it all out, the Hayne's book is a bit light in this regard.
1987 3.6 Auto Sovereign 506111

naki_k
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Posts: 28505
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: My 1987 3.6 Sovereign

Postby naki_k » Wed May 29, 2019 12:23 pm

Indiana_Jones wrote:Cheers mate, so in that case, I'm guessing the switch needs to be removed from the car and then o-ring renewed, which one might as well renew the accumulator at the same time?

Sorry for all the questions, just trying to figure it all out, the Hayne's book is a bit light in this regard.


That would be the case if it’s the front O-Ring. But if it leaks out of the back of the switches, then I don’t know if they are repairable.
These failures are so common, I think it’s a case of when, not if.

Your first check simply look under the car to check for leaks. The sphere and switches are mounted on the RH front, under chassis rail/ below the position of the green tank. Easy to spot once you get under there.
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

Indiana_Jones
Posts: 79
Joined: Wed Sep 14, 2016 9:46 pm
Location: New Zealand

Re: My 1987 3.6 Sovereign

Postby Indiana_Jones » Wed May 29, 2019 10:55 pm

cheers Naki, will try and take a look this weekend, iirc there was some green stuff on the switch.

Do the later cars have a similar system or are they a bit simpler?
1987 3.6 Auto Sovereign 506111

naki_k
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Posts: 28505
Joined: Sun Feb 21, 2010 9:25 pm
Location: Kirton, nr Boston, Lincolnshire

Re: My 1987 3.6 Sovereign

Postby naki_k » Fri May 31, 2019 10:08 am

Indiana_Jones wrote:cheers Naki, will try and take a look this weekend, iirc there was some green stuff on the switch.

Do the later cars have a similar system or are they a bit simpler?


Green stuff would be leaking mineral oil yes.
As with all minor leaks wipe clean, spray some brake cleaner to clean the area. Then you can better monitor the source and severity of the leak.
The reservoir above can leak too, so it is wise to check.

The entire braking system was replaced for the 4.0 models, in late 89. Girling became ATE.
88 3.6 XJ6 PDH/CEM
90 Range Rover Vogue SE 3.9 V8 LPG
91 4.0 XJ6 Manual
92 4.0 XJR Manual
92 4.0 XJR
93 3.2s - 4.0 Manual conv
93 4.0 Sovereign
93 6.0 XJ81 DD6 x2
93 6.0 XJ81 XJ12
94 4.0 XJR
94 4.0 Daimler
96 4.0 X306 XJR
96 4.0 X300 D6
97 4.0 X300 Sport Manual
2000 LR Discovery ES TD5 A
Breaking 40/ 300

david
Posts: 6586
Joined: Wed Aug 06, 2008 8:09 pm
Location: Cheshire, UK

Re: My 1987 3.6 Sovereign

Postby david » Thu Jul 18, 2019 11:48 am

It is good to see a nice early car on the forum - with the earlier style door mirrors, plenum cowling, early clock and Clarion Jaguar radio - and even the black sticker on the cam cover. They are rare cars now.

These very early cars had a loud 'fasten seatbelt' buzzer warning along with the light on the dash. My father had one of the early cars like this one (his was Feb '87 registered) - and the first thing he had done on the car was to have the seat belt warning disconnected. It was excessively loud and intrusive and removed from slightly later cars so it is likely he wasn't alone in this view. This could have been what has happened with your car.
Image 1992 Sovereign 3.2 diamond blue (1993 model)

stevemc
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Re: My 1987 3.6 Sovereign

Postby stevemc » Thu Jul 18, 2019 12:11 pm

david wrote:It is good to see a nice early car on the forum - with the earlier style door mirrors, plenum cowling, early clock and Clarion Jaguar radio - and even the black sticker on the cam cover. They are rare cars now.

These very early cars had a loud 'fasten seatbelt' buzzer warning along with the light on the dash. My father had one of the early cars like this one (his was Feb '87 registered) - and the first thing he had done on the car was to have the seat belt warning disconnected. It was excessively loud and intrusive and removed from slightly later cars so it is likely he wasn't alone in this view. This could have been what has happened with your car.


want to buy one down road from you :) first registered 27/01/1987 3.6 povo spec leather seats though, no air con, no abs, no cats,no speed control just fun car and quick cause no cats.
Jaguar xj40 1986 build D513 NBU vin number ends 504501
Audi A4 Sline 2016
Image

david
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Location: Cheshire, UK

Re: My 1987 3.6 Sovereign

Postby david » Thu Jul 18, 2019 12:16 pm

What colour is it?
Image 1992 Sovereign 3.2 diamond blue (1993 model)

stevemc
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Re: My 1987 3.6 Sovereign

Postby stevemc » Thu Jul 18, 2019 1:19 pm

david wrote:What colour is it?


westminster blue one in signature
Jaguar xj40 1986 build D513 NBU vin number ends 504501
Audi A4 Sline 2016
Image