XJ XJ8 / XJR ( X308 ) 1997 - 2003

Thermostat Housing Torque spec's

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Old Apr 19, 2008 | 05:13 PM
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Default Thermostat Housing Torque spec's

Any one have them for a 1999 VDP 4.0?
 
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Old Apr 19, 2008 | 06:54 PM
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Default RE: Thermostat Housing Torque spec's

Does the intake manifold have to come off for this job? If I pull it off, are the intake manifold gaskets reuseable? It looks like the rear thurm housing bolt are hiting the botom of the intake manifold before they are fully unscrewed.
 
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Old Apr 19, 2008 | 06:57 PM
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Jaguar did a great job on this intake/thurm design, what a cluster F this job is. I give a one finger solute to the engineers at jaguar once again..
 
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Old Apr 19, 2008 | 07:28 PM
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Default RE: Thermostat Housing Torque spec's

Removethe front bolts completely from the t-stat housing. Then remove the rear ones part way. As they come up evenly, start to lean the housing forward and keep removing the bolts.
It will come off without removing intake. I advise against reuse of gaskets if you choose to remove intake.
Also, do yourself a favor. Remove two bolts from the thermostat cover and use them on the rear of the housing, and the two longer ones from housing, put back in thermostat cover. Hopefully you are changing thermostat with it.
 
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Old Apr 19, 2008 | 08:00 PM
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Well I took off the intake manifold bolts and cracked the manifold up a bit to take the housing off. I have some one coming to buy the car tomarrow so I'm going to take the chance and reuse the intake manifold rubber gaskets. I did buy the thermostat. Thanks for the tip. Does any one have torque spec's on the intake manifold bolts and therm bolts?
 
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Old Apr 19, 2008 | 08:03 PM
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Default RE: Thermostat Housing Torque spec's

If you really need them I will get them. Its becomes a feel. Tighten them snug evenly then just make themtight. Do not overtighten.
 
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Old Apr 19, 2008 | 10:12 PM
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Well at this point its getting put together with out them. I just enjoy using my cool snap on electronic torque wrench.
 
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Old Apr 20, 2008 | 08:17 AM
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Default RE: Thermostat Housing Torque spec's

Lol. I have Snap-on 1/2" digital. I love it. But not for thermostat housing bolts....LOL
I am sure it is not my much torque.
 
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Old Apr 20, 2008 | 06:43 PM
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After I put it back together I had no vacuum leaks or coolant leaks. And sold the car this morning. Thanks for every ones help. It was sad to see it go so cheep, I enjoyed this car more then most of the M-benz and BMW's I've had in the past. I did find a cheep 2001 S-type the other day that I mite purchase, the only problem is it has a V6 in it.
 
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Old Apr 20, 2008 | 07:11 PM
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Well if you pick up the S we will be here for you again, albeit in a different room...LOL
 
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Old Aug 9, 2011 | 08:38 PM
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Thanks.
 
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