Question about Audi 90

Open Question

Cylinder head removal and replacement ( blown head gasket )

Posted by on

  • Anonymous Mar 15, 2009

    fixya can not fix nothing all they what is money

×

5 Suggested Answers

fastboyz
  • 674 Answers

SOURCE: head gasket blown

there are many was a head gasket can blow . sometimes they just leak to the outside sometimes they leak to the coolant and then it blows out your antifreeze. if you have a blown head gasket you will see it when you pull the head. and yes you should hace the head checked at a machine shop and install with a new head set never reuse a gasket .
later paul

Posted on Sep 15, 2008

cortez_marco
  • 58 Answers

SOURCE: how to replace blown head gasket

u have to start by removeing ur headers dont forget to take ur blown gasket to ur local part store to make shure u get the rigth one

Posted on Feb 18, 2009

  • 226 Answers

SOURCE: blown head gasket

I would change both, as well as use new head bolts. Make sure your heads are not warped or cracked, especially the one that is leaking. There may not be any need to change the head if it is not cracked. These are prone to blowing a gasket especially after 150K miles or so. It will not cost a huge additional amount to change both head gaskets since the engine will have to be disassembled down to the heads anyway. Hope this helps you, Rick

Posted on Apr 18, 2009

  • 1 Answer

SOURCE: need to replace blown head gasket on the above vehicle

are you sure head is not cracked

Posted on Aug 07, 2009

  • 905 Answers

SOURCE: 2000 camry. blown head gasket (daughter drove car

Yes, you can, but not exactly recommended. If you are going to go that deep into it, then might as well do everything else. However, being unemployed tends to have a negative impact on the wallet....

I suspect it is more than just rings. I think that the walls have been scored badly as well. You may be able to use a borescope to take a peak into the cylinder through spark plug hole. Move the piston to bottom of stroke, and see what you can see. If scarred, much work will be needed. If hatches look alright, then you might be able to get away with just rings.

What kind of compression are you getting on #1 vs #2? This also might be a blown headgasket into an oil passage, or the head (perhaps block?) is ever so slightly warped in this area.

Posted on Aug 29, 2009

Testimonial: "Thanks for the quick response. Very much appreciated your input, all makes sense and got my mind on the right track again. Thanks"

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

One cylinder is low in my 1998 Volvo s90 and the repair shops says the engine needs to be replaced. Is this true>


Not necessarily. I assume you mean that the compression on one cylinder is low? This is generally either the rings/cylinder, or valves. Sometimes a blown headgasket can drop compression, but will generally have other symptoms, ie., blown between one cylinder and another, blown between the cylinder and a cooling or oil passage, etc.

A GOOD shop will check more than compression, to determine where the exact problem is.

*A head gasket blown between 2 cylinders will have low compression on bothe affected cylinders.
*A head gasket blown into an oil or cooling passage will blow bubbles (gasses) into the affected area.
*To check the rings/cylinder, after running the first compression check, put a few ounces of oil into the cylinder through the spark plug hole. Re-run the compression check on that cylinder, and if the compression improves dramatically, you have bad rings on that cylinder.
*To check the valves, you need what is called a pressure differential guage. You place the affected cylinder at TDC (Top Dead Center) on the compression stroke. You then attach the guage, and apply a set amount of air pressure to the cylinder, usually about 100psi. One dial on the gauge reads input pressure (100psi), and the other reads how much the cylinder is actually holding. A drop of more than 10-15% generally indicates a bad valve in the head (as long as the prevoius checks came out OK). To determine which valve is bad, remove the intake ducting and listen for escaping air (Intake Valve) and listen at the tailpipe for the same (exhaust valve).

These are general procedures for tests so that you can see if your mechanic has actually performed them or not. If you want to run the tests yourself, I can give you more specific instructions.

Repairs:
Head Gasket - need to remove the head and check the head and block for cracks. Then replace the gasket and reinstall the head.
Bad Valve(s) - need to remove the head and have the bad valves reground or replaced by a machine shop and then reinstall the head.
Bad Rings/Cylinder - the engine will need to be removed and either machined and rebuilt or replaced.

Again, if you want any more specifics, please ask.

Hope this was helpful!

Sep 17, 2011 | 1998 Volvo S90

1 Answer

How do i replace a blown headgasket


To replace a blown head gasket requires a lot of labor on this vehicle. Its a v6, meaning you have 2 head gaskets to replace instead of just 1. It requires removing air cleaner, disconnecting battery, removing most of the accessories that are belt driven, removing the intake manifold, egr valve and tubing, exhaust manifold on both sides of engine, timing belt removal, valve covers, and a few smaller items. After removing everything on top of the engine, you'll have access to the cylinder head bolts. Removing them will allow you to lift off the cylinder heads. Before replacing the gaskets, you must send them to a machine shop to have the gasket surface milled true flat again. They must also be inspected for cracks (which will sometimes happen with blown head gaskets) which would render them useless.
If this is a vehicle you really like, perhaps consider investing in a quality used motor. Its less labor intensive, less repeat repair, and you may come out saving a few bucks.

Sep 01, 2011 | 1996 Dodge Intrepid

2 Answers

Hi i have 98 camry it blow white smoke not only on 1st start, but only sometimes.driving up hill and it is rattling and blow white smoke and the car have not enough power.pls any help suuggestion is very...


Sounds to me like the head gasket is blown, but there may be sealant in the system which is making it intermittently leak antifreeze into the cylinders.

A bad cylinder head gasket will also cause a compromise in compression, which will cause a lack of power.

Time to overhaul or replace the engine's head gasket, or replace the engine with one that doesn't have a blown head gasket.

Good luck on this repair.

Dec 30, 2010 | 1998 Toyota Camry

1 Answer

How can i tell if i have a blown head gasket and is there a difference in cracked\warped head or blown gasket when diagnosing?


Hard to tell if its a blown head gasket or warped cracked head. The symptoms will be the same. The way to check is to pull the spark plugs and look at them. If one is super clean then more then likely antifreeze is getting in that cylinder. You can buy heavy duty sealant to try to seal the leak up. You get this at a auto supply depot. Get the one that you have to drain antifreeze and replace with water. You run the engine with the spark plug removed from the cylinder that was leaking until no water comes out

Sep 27, 2010 | 1990 Isuzu Pickup

1 Answer

Oil is leaking into the coolant system


Your Engine has a blown Head Gasket or a Head Gasket leak. The Head Gasket is a Gasket between your Cylinder Head and Engine Block. You will need to remove the Cylinder Head to replace the Gasket. If you decide to get it repaired, it is best to get a few estimates, or take it to your trusted Mechanic.

Aug 24, 2010 | 2000 Cadillac Catera

1 Answer

Engine is leaking after overheating and stopping on the freeway - there is also water in the oil. seems to be leaking from the bottom of the engine - maybe a blown seal? what does this mean repair wise?


LOOK LIKE A BLOWN HEAD GASKET.YOU GOT WATER OR ANTIFREEZE IN OIL CRANKCASE THE HEAD GASKET IS LEAKING.THIS REPAIR OR FIX THE CYLINDER HEAD HAS TO BE REMOVED TO REPLACE HEAD GASKET.

Jun 12, 2010 | 1985 Mazda RX-7

1 Answer

Blown head gasket how to repair it


The only way possible: remove the cylinder head and replace it. And do it quickly because a blown head gasket can seriously damage an engine if left unfixed.
This is a serious job, which requires mechanical knowledge and some special tools - a torque wrench is mandatory.

Jun 01, 2010 | 1989 Cadillac Sedan DeVille

2 Answers

How do i tell if the heads creaked on a 91 celica


a cracked head or blown head gasket,will cause your vehicle to have a miss in the cylander where the crack is or where the gasket is blown. you can also see coolant leaking if the gasket is blown. you can also see water in the oil,and white smoke come from the exhaust.
to tell for sure that the head is cracked,and not just a blown gasket is to remove the head. you will instantly see if the gasket is blown. if its not,then turn the head upside down and look at the small space between the valves,as this is where 99% of cracks occur.

May 03, 2010 | 1991 Toyota Celica

1 Answer

Waterpump went out and engine got real hot and blew upper radiator hose replaced waterpump and hose now it wont fire


It is very likely the overheating has blown the cylinder head gasket and coolant is getting into cylinders or compression is leaking from cylinder to cylinder or both, you will need to remove the cylinder head and have it checked for warp-age and shaved flat by a machine shop if ness, and replace heat gasket.

Apr 07, 2009 | 1997 Mazda Protege

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

Related Topics:

794 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audi Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

yadayada
yadayada

Level 3 Expert

63990 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

13218 Answers

Are you an Audi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...