Question about 2006 Jaguar XJ8

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My Jaguar Xj8 I had placed engine seal accidently into the oil instead of the radiator

Head gasket Sealant was put into oil instead of radiator the car drove 5 miles the oil light came on 10 seconcds later car stoped running

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1 Answer

You NEVER in---- my world ---use any sealant in any vehicle
systems-- as it is there for life

It will stop up a heater core
It will stop up a radiator
It will not or seldom be a fix for a head gasket replacement
Get the idea

Don't know what to tell you

Did it shut down from lack of oil pressure to save the motor?

How your going to get that out of the bearings,cam actuators,
oil passages,oil pump,sensors

I think your in BIG Trouble & need to ask many shops what
success they have had with that issue

I say stay out of the parts store chemical isle, with the exception
of LUBEGARD for transmission & power steering additives

Those are ALL, I Repeat ALL, I use & they actually not only work
but are necessary in those two items only (i once owned a trans shop)
I use NO other brands,no Lucus,no genie in a bottle

Just Mobil 1 Oil & Lube Guard & make the proper diagnoses
to all vehicles & do the necessary & painful repairs

Posted on Mar 30, 2014

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Posted on Jan 02, 2017

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2 Answers

Is there a sealant for a blown head gasket or cracked head?


Hey Michael,
How/why do you think you have a blown gasket/cracked head??
....If you have a blown head gasket/cracked head you need to get it fixed ASAP.. Check your oil for cross contamination...( a light cream colored oil indicates water/antifreeze mixed with the oil).this WILL cause major damage if you continue to run the engine..(WATER is NOT a good engine lubricant!!!!) There are several "sealants" or radiator stop leak products... BUT ..cleaning these out of a coolant system is a NOT FUN!!.. Sorry.. trying to "patch" this will lead to more $$$$$ down the road!!

Aug 29, 2017 | Cars & Trucks

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Simple steps to replace the Valve Cover Gaskets on a Jaguar XJ8?


Replace the valve cover gasket if the valve cover gaskets are leaking or if they're worn. The procedure is as follows:--
1)First carefully remove the nuts holding the valve cover to the engine head.2
2)Then pull the valve cover off from the engine head .
3)You can use flat-tip screwdriver to remove the valve cover.
4)It will be very dirty inside so you will have to clean the mating surfaces on both the engine head and the valve cover.
5)Take your time and clean it completely.

6)You can use a bead of RTV sealant on both mating surfaces.

7)Then carefully seat the gasket to top of the engine head.
8)The gasket can only be fitted in one way. So fit it properely.
9)Then tightly Press the valve cover to the gasket
10)And tighten the valve cover nuts secure.

This will help.Good Luck.

on Mar 10, 2010 | Jaguar XJ8 Cars & Trucks

1 Answer

Does the stop leak work by swelling the rubber seals or by detecting air and stopping up the leak?


It depends what sort of stop leak you're talking about. There's different types.

Something for a leaking windshield rubber works by filling a gap and then becomes hard, similar to how bathroom sealant works.

An oil stop-leak works by penetrating and 'refurbishing' -swelling- dried gaskets and then hardening when it contacts the air on the outside of the engine block.

Some types of coolant sealant work by allowing particles to congregate/collect around a small hole in a radiator, blocking the hole. The particles harden due to the air/heat to form a plug. This type of sealant can also block your heater matrix, and they do not repair rubber hoses (hoses must be replaced if leaking).

A cylinder head sealant works by either depositing particles in a small crack in the head or gasket, or in the case of a modern head sealant, it uses polymers.

If you have a slight oil leak - slight - on an engine or auto box, try a sealant. If it's anything more than a slight weep, then gasket/seal replacement is the best option.

Aug 03, 2016 | Cars & Trucks

2 Answers

How do I change the oil pan gasket?


Whether it's an engine oil pan (called the 'sump'' in the UK) or a transmission oil pan the principle is the same on all vehicles.
1. Drain the oil

2. Remove the bolts holding the sump/pan in place:
change-oil-pan-gasket-mcgwfbeeztshkxy1nyom2hsg-4-0.jpg
change-oil-pan-gasket-mcgwfbeeztshkxy1nyom2hsg-4-1.jpg The oil drain plug, though depending on your vehicle it may look different:
change-oil-pan-gasket-mcgwfbeeztshkxy1nyom2hsg-4-3.jpg change-oil-pan-gasket-mcgwfbeeztshkxy1nyom2hsg-4-6.jpgNew gasket held in place with sealant
Use a blunt screwdriver -if needed - and prise the oil pan free. remove all traces of the old gasket from the mating surfaces.

Use a smear of sealant to hold the new gasket in the correct position on the pan - this will hold it in place when you refit the pan.

Push the pan into position and put in a front bolt finger-tight. Then put in a rear bolt finger-tight.

Putting in the bolts finger-tight allows you to gently 'move' the pan if needed to put the bolts in one at a time.

When all bolts are in, tighten them with a wrench/socket. Then check them all again for tightness.

It isn't actually a big job .. more 'messy' because of the oil.

Nov 04, 2015 | Cars & Trucks

1 Answer

Replace intake manifold gasket; 4.3L V-6


do you have a coolant leak or oil leak. ive always discarded the rubber gaskets provided in gasket kit, and instead, ran a good thick bead of silicone. The rubber gaskets, ive found, can be pushed out, either when setting intake on engine, or if the engine has a bad pcv valve, pressure within block can blow them out. make sure and check pcv valve. after the new intake gaskets are placed on the head, dab a bit more on the 4 corner nubs of the gaskets. i like to use an anearobic sealer around the coolant ports, just thin layer on both sides of gasket. hope this helps. James White, White Auto, Hopkins Mo. 17 yr ASE tech.

Sep 29, 2012 | 1989 Chevrolet S-10 Blazer

1 Answer

I just bought a used 2000 cadi sts..it had a crack on the radiator and was leaking major coolant..so i ordered a new radiator..but in the mean time i bought a sealant to seal the crack temp and it...


put the new radiator in the car,forget about the sealant,that is for a temporary fix. You can buy sealants that can fix some head gaskets without taking the engine apart,you just have to follow the directions that come with the sealer to do it right the first time.make sure you refill with quality antifreeze after you get done.

Jun 14, 2011 | Cadillac STS Cars & Trucks

2 Answers

How do I replace exhaust manifold gasket on a 2002 Jaguar xj8


Get an acetylene torch - you will need it to loosen all of the rusted bolts. Remove the bolts holding the manifold to the head. Slide theold gasket out and slide the new one in. Insert the bolts and torque them to spec . . . Voilla!! All finished!!!

Apr 19, 2010 | 2001 Jaguar XJ8

1 Answer

I have a pontiac and i keep blowing head gasket on number one cylinder. I have installed new heads and gasket lasted about five years. I was wondering what the correct head bolt torque is for a 1995...


cylinder head bolts, step one;33 ft. lbs, second step rotate an additional 90-degrees (1/4 turn). do not put any oil or sealant on gasket. the gasket should seal itself if torqued properly.

Feb 27, 2010 | 1995 Pontiac Grand Prix

1 Answer

1998 jaguar xj8 consumes anti-freeze


First thing to check is the radiator cap seal. If it is not sealing properly, the water will boil off and then soon, the anti freeze will begin to disappear. Clean the metal surfaces and gasket and make sure it is tight ---or buy a new cap --but make sure there is a seal. If that doesn't cure it, you may have a head gasket leak that blows the coolant (anti freeze) into one cylinder. If that cylinder is tight, the coolant will only evaporate in the heat and be blown out the exhaust --not entering the oil pan. Check your exhaust when you start up. You may see white smoke, or even liquid, exiting the exhaust pipe, indicating a blown head gasket (then engine may run rough, too). If this is the case, there are reasonably inexpensive cures for this in some cases.

Jul 08, 2009 | 1998 Jaguar XJ8L

3 Answers

Newer oil pan gaskets for Ford, not like original..leaking again


try warming up the engine a little then re-tightening the bolts,if that doesnt work,mark where its leaking and pull the pan back off and apply sealant to that area a little heavier than the rest of the gasket surface,dont use too much on a new gasket,just a really thin coat...USE "ULTRA BLUE" sealant,NOT blue or black RTV silicone,silicone wears out and it can leak after a while..Allow the ultra blue sealant to dry for about 30 minutes before re-assembling it,and clean off all oil from the gasket before applying the sealant,its ok to apply it to both sides of the gasket,and add a glob to all 4 corners where the gasket meets with rubber seals around the crankshaft,but put those globs on right before you put the pan back in place,the sealant has to be wet to squish in enough..i hope this helps

May 09, 2009 | 1999 Ford Explorer

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