Question about Jaguar XJ6

1 Answer

I have a 1996 Jaguar XJ6, 4.0 litre engine, about 138,000 miles. I recently replaced the head gasket due to finding coolant in the oil. The head gasket,intake and exhaust manifold gaskets were also replaced upon reassembly. After reassembling all parts ,i started car and it would run for about 15 minutes and then shut off and would not restart. i removed spark plugs and found them all to be foulded with black carbon soot. cleaned plugs and started car only for same thing to happen again and again. I did read about running hotter plugs in it but i had been running the same plugs in it before i changed the head gasket. Any advice would be appreciated. thanks

Posted by on

  • 2 more comments 
  • rbradley3 May 17, 2011

    Thanks. I've check that and it seems okaky. Is it possible that the camshafts are not aligned properly due to
    the sprockets slipping pass one of the timing chain teeth when the
    timing chain was slack. I did mark the position of the camshaft,
    sprockets and timing chain before disassembly but after the slippage of
    the chain and cam sprocket, I'm not sure of their correct position.
    There is a camshaft timing tool that I can order online that is a bit
    pricey after shipping but will order if no other alternative. But might
    you know of an alternative to checking the camshaft alignment without
    the tool.

    thanks again

  • rbradley3 May 17, 2011

    It is possible that the camshafts are not aligned properly due to the sprockets slipping pass one of the timing chain teeth when the timing chain was slack. I did mark the position of the camshaft, sprockets and timing chain before disassembly but after the slippage of the chain and cam sprocket, I'm not sure of their correct position. There is a camshaft timing tool that I can order online that is a bit pricey after shipping but will order if no other alternative. But might you know of an alternative to checking the camshaft alignment without the tool.
    thanks again

  • rbradley3 May 18, 2011

    Thanks! I appreciate the help.

  • rbradley3 May 18, 2011

    Thanks. Hopefully this will work....

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,702 Answers

Have you had the codes checked?sounds like there might be a vacuum hose off, or an air leak behind the mass air sensor. also are you sure that you have the valve timing correct, if you have it off even 1 tooth it will cause a very rich condition. if the engine ran fine before you removed the cylinder head then i would recheck every thing i did when changing the cylinder head. check these things and get back with me.

Posted on May 17, 2011

  • john nail
    john nail May 18, 2011

    i think i would re-check the camshafts, the tool does make it much easer, but it can be done with out it but almost need someone to help hold one of the camshafts wile you install the chain. i do think you are on the right path as much as you dont want to hear it but hay we all make mistakes.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1996 RAV4 coolant pooling in spark plug well


head gaskey leaking or bad water/coolant jacket in the head or poably warped head from over heating

Apr 03, 2013 | 1996 Toyota RAV4

1 Answer

1994 Mazda B3000 V6 engine oil pushes into coolant. Have to add engine oil all the time and drain the recovery bottle. 65,000 miles. Never been overheated.


Failure of head gasket between cylinder head and block.

Because oil pressure is higher than coolant pressure, oil will creep across poor sealing area of head gasket from the oil riser drilling that feeds the cylinder heads cam assembly's.

Worst case scenario would be a cracked cylinder head/s. No totally unheard of but rare.

Continued oiling of the coolant system will rot out the coolant hoses from the inside to the point they will burst.

Due to the year of this engine it may be prudent to find a used engine with less miles and swap it out.

Jan 18, 2011 | 2007 Mazda B3000

2 Answers

My honda has 580,000 miles on the original engine and I am now getting oil in the anti-freeze (coolant). The car's compression and power is as good as ever. I recently replaced the cat. converter. There...


You obviously have taken care of your car with that many miles on it. Oil getting into the coolant is not good. There is a gasket that is causing the oil to seep into the cooling system. On the Hondas it is usually a head gasket. Hope this helps.

Jan 02, 2011 | 1997 Honda Accord

1 Answer

Coolant light comes on


Ouch. Been down that road.

Sounds to me like a head gasket problem.

Pull your oil dipstick.

Is your oil watery?

Does your dipstick smell like coolant?

Does your coolant have an oily film on it?

You can have a dye leak test done to confirm it.

Should you be able just to have the head gaskets changed and not the engine, again..insist on thenewest, brand name, top of the line gaskets
available.

Best of luck.

Oct 02, 2009 | 1998 Jaguar XJ8L

1 Answer

Mercedes 190 E 2.6 blown head gasket?


sound like intake gasket leak.it will leak oil into the cooling system.

Jul 03, 2009 | 1993 Mercedes-Benz 190

2 Answers

I hve a 2000 grand Caravan, 3.3, 138,000 miles.


check your belt tensioner ,or loose belt,good luck,drive safe pls dont forget to rate me,thanks.
cda8f65.gif

Jun 05, 2009 | 2000 Dodge Caravan

1 Answer

Coolant in # 1 cylnder\clean intake port of intake manifold


Check the lower intake gasket again the new gaskets that are being use made out of plastic with rubber port seals sometimes don't seal right I still used gasket sealer with the new plastic gasket even if it has rubber seals. MY 4.2 v6 had that problem but I went ahead and replaced the head gaskets also just to cover all the bases. And my F-150 has 210,000 miles on it. Make sure you tight the bolts I know it probably calls for something like 8 ft lbs which to me is not tight enough. Double it.

Apr 18, 2009 | 2000 Ford F150 Flareside SuperCab

1 Answer

Oil in coolant


Head gasket or cracked head. Thats the only way oil can get in the coolant.
Do a compression test on each cylinder to test for crack or leaking gasket.

Feb 04, 2009 | 1996 Geo Prizm

1 Answer

There is a coolant leak in my 1996 chevy camaro. it has the 3.4 litre V6. I replaced the intake gaskets and still have a slow coolant leak into the engine oil? Could it be a head gasket?


Since you used a question mark after "engine oil", I assume that you're not too sure where the coolant is going. While it's certainly possible for the coolant to end up in your oil, you should be able to see byproducts of combustion in your coolant (a very dirty coolant) if the head gasket is leaking. It could also force coolant out of your overflow as you drive, but not while you are sitting idle, making it hard to actually see if this happening to your coolant. Check your coolant for signs of this "blow-by". If your engine is losing power, you might want to do a cylinder balance check.

Jul 30, 2008 | 1983 Chevrolet Camaro

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

91 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

yadayada
yadayada

Level 3 Expert

75077 Answers

SPEEDY CAR WORK SHOP...

Level 2 Expert

489 Answers

Are you a Jaguar Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...