XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

Intake Manifold Gasket replacement

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Old 01-05-2018, 02:07 PM
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Default Intake Manifold Gasket replacement

Is there a step by step on this procedure in the comments. I could not find one.

Thanks,

Tom
 

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Old 01-05-2018, 05:49 PM
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Tom, you can download the Workshop Manual from this site. Search for JTIS or Workshop manual.
 
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Old 01-06-2018, 06:52 AM
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The workshop manual procedure looks pretty straight forward.......except for removing fuel rail. Is there a special tool to remove spring lock couplings on fuel rail?

Thanks,
Tom
 
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Old 01-06-2018, 12:38 PM
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Originally Posted by talashek
The workshop manual procedure looks pretty straight forward.......except for removing fuel rail. Is there a special tool to remove spring lock couplings on fuel rail?

Thanks,
Tom
Visit your local parts store and pick up something like this;

Amazon Amazon
 
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Old 01-08-2018, 10:44 AM
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Wow. That looks simple......

Thank you,

Tom
 
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Old 01-08-2018, 01:35 PM
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It is not all that big although important task to do correctly. Take your time, walk away when you are having an issue. Come back later and things often work out a lot easier than you thought they would. Plastic connectors were sometimes a pain to get undone, some were already broken at the clip on the connector. Some can be had from Ford, those work great, & are the best solution, others can be a bit of an issue, but someone will have done it, just ask.
 
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Old 01-09-2018, 07:34 AM
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Default Intake Manifold Gasket Replacement

Thanks Wingrider. I'll report back when finished.

Tom
 
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Old 01-19-2018, 11:58 AM
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Default Intake Manifold Gasket Replacement

Is there anything else I should replace while i am in there? other than the upper and lower gaskets.

Thanks

TOM
 
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Old 01-19-2018, 01:21 PM
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There's a coolant hose in the valley, that's a must-do if you're going through the trouble of taking the intake off. MAP sensor and knock sensors are under there, but if no issues that's not value for money.

You don't have to remove the injector rail to change the intake. I had a thread w photos on the naturally aspirated V8 valley coolant hose here: https://www.jaguarforums.com/forum/x...on-s-c-149873/
 
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Old 01-19-2018, 02:10 PM
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Originally Posted by mhamilton
There's a coolant hose in the valley, that's a must-do if you're going through the trouble of taking the intake off. MAP sensor and knock sensors are under there, but if no issues that's not value for money.

You don't have to remove the injector rail to change the intake. I had a thread w photos on the naturally aspirated V8 valley coolant hose here: https://www.jaguarforums.com/forum/x...on-s-c-149873/
I respectfully disagree with not changing the knock sensors. Unless you're getting specific MAP sensor codes, then a good cleaning should suffice, but you should definitely replace the knocks while you're in there. I was amazed by how much better the car ran after replacement.
 
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Old 01-19-2018, 04:58 PM
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If the manifold is off, those eight pesky little rubber gaskets, inside the manifold, would be a good idea to replace.
 
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Old 01-19-2018, 05:52 PM
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Originally Posted by XJ8JR
I respectfully disagree with not changing the knock sensors. Unless you're getting specific MAP sensor codes, then a good cleaning should suffice, but you should definitely replace the knocks while you're in there. I was amazed by how much better the car ran after replacement.
Right--I didn't mean if you had codes, but if you have no pinging or knocking, and no reason to suspect them--it's up to you if you want to replace them. If they're any bit suspect of course now is the time to do those.

If the manifold is off, those eight pesky little rubber gaskets, inside the manifold, would be a good idea to replace.
Is there a source for these intermediate gaskets now, or does Jag sell them?

Which reminds me--if you're ordering the intake manifold-to-head gaskets from Jag, be aware they are only selling you one, not a set.
 
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Old 01-19-2018, 06:12 PM
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Originally Posted by mhamilton
Right--I didn't mean if you had codes, but if you have no pinging or knocking, and no reason to suspect them--it's up to you if you want to replace them. If they're any bit suspect of course now is the time to do those..
Actually, I wasn't getting any codes or anything, but I figured I might as well change them out while I'm in there and it indeed made a huge difference. It really felt like a lot of power lost from age had been restored.
 
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Old 01-20-2018, 06:46 AM
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Default Intake Manifold Gasket Replacement

is this the proper hose from egr. Rockauto URO AJ89554?i
 
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Old 01-20-2018, 09:07 AM
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Default Intake Manifold Gasket Replacement

Originally Posted by Wingrider
If the manifold is off, those eight pesky little rubber gaskets, inside the manifold, would be a good idea to replace.
What do the gaskets look like and where can i get them?

Thanks,
Tom
 
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Old 01-20-2018, 10:15 AM
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Coventry West; Is where i got mine, $134.92 for the two metal, and eight rubber, or silicon gaskets, delivered to my door. Salesman there knew exactly what i was talking about. The dealer has a new manifold available, but knows nothing about any internal gaskets.Thought since Ford has the same gaskets inside their Thunder bird, as well as the Lincoln L S, they would have them, but no such luck.Keep your eyes open, ask questions, pay attention, take your time, and you can almost afford to drive an unbelievable automobile, you will enjoy every time you drive it
 
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Old 01-20-2018, 10:31 AM
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are these the gaskets you are referring too? I got them on ebay from a co. in Austin Tx. $86
 
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Old 01-20-2018, 02:59 PM
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Those are the ones.
 
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Old 01-22-2018, 07:10 AM
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Originally Posted by talashek
is this the proper hose from egr. Rockauto URO AJ89554?
You need AJ811763 for the natrually aspirated V8. The one above appears to be a S/C hose. Similar but different shape. I would stick with OEM on this part, you don't want to be pulling the manifold a 2nd time for the same item. I have not heard the best reviews of URO parts.

 
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Old 01-22-2018, 09:37 AM
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Default Intake Manifold Gasket Replacement

Thanks. I agree on the hose. I forgot to mention in earlier posts that when i first start car the brakes are really stiff, as if they are not getting any Boost.
Is this all inner related?

Thanks,

Tom
 
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