Question about 1998 Toyota Celica

1 Answer

Celica ST 1.8 Valve stem seals

I have recently change my head gasket and all 16 valve stem seals. After refitting the head and experiencing a smoking engine, I have endevoured to find a solution. I have investigated some of the old valve stem seals removed and have compared them with new ones. I have found that there are some differences in the hole diameters. The original hole diameters measure 5mm were as the new measure 5.8mm. Also, Toyota used to supply two different seals, a green top for the exhaust and a brown top, but now supply just one, suggesting that there is very little difference?
Can anybody help here?
I am trying to solve a problem and with Toyota wanting £9.38 each, to commit to spending £150.08 on these seals is a little scary.
Kind Regards
Graham

Posted by on

  • brumski Sep 13, 2008

    Dear Toyota Ed,

    I have managed to resolve this issue. It was in fact the valve stem seals, that Northern Components had wrongly supplied and after a lot of enquiries I managed to locate some Ajusa seals part no. 57038300 that include the orinially specification seals, this immediately solved the problem.

    It was the fact that the seal given by Northern Components were from a full head set and they guaranteed they were correct!, Also note that Northern Components have completely refused to give me any compensation what-so-ever. Good company hey!!!!

    Thanks for your comments/suggestion, but I am prety sure that if there had been any damage to the pistons or barrels, I would have said so.

    Kind REgards

    Brumski

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Toyota Master
  • 1,861 Answers

When does it smoke? All of the time, or just when you start it? If it smokes all of the time, consider piston rings. If you have lots of smoke when first starting only, valve seals and possibly worn valve guides are the culprit.

Posted on Sep 12, 2008

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

Thick white smoke on start-up. After engine warms up very little smoke or no smoke at all noticable. could it be the PCV valve?


white smoke indicates a coolant burning problem. most likely a head gasket and when it gets warmed up the expansion of the mating components seals off most of the leak. have a head gasket check done. burning of oil is a bluish colour not white.

Mar 11, 2015 | Cars & Trucks

1 Answer

Mitsubishi Colt 2L injectors 16 valve with new cylinder head fitted but continuous smoking what could be the problem ?


black smoke --over fuelling, incomplete combustion
white smoke --too lean , water getting into the combustion chamber ( gasket)
blue smoke-- valve stem seal incorrectly fitted( old or worn,hard),oil ring failure, cylinder bore damaged, worn main/big end bearings overloading the oil ring,fauty pcv valve or EGR system

Nov 14, 2014 | Mitsubishi Colt Cars & Trucks

1 Answer

Engines idle goes up and down after warming up and blows blue smoke


If the engine idles for a while then blows blue smoke this is an indication of oil passing the valve stem seals and being burnt in the combustion process. ( When you are at lights and they change and you accelerate away leacing a cloud of blue smoke this is worn valve guides and failed valve stem seals) As for the idle it could be the oxygen sensor is coated with oil and soot and is malfunctioning henace the cpu cannot regulate the fuel setting correctly. Have the valve seals replaced and clean the Oxygen sensor and check for other fault codes

Feb 17, 2013 | Cars & Trucks

1 Answer

Taking off the head off is there a diegram or pic i can use


Blue smoke is oil being burned in the cylinders. It could be valves not seating properly, valve stem seals bad, possibly a head gasket if it blew where an oil passage may let oil in cylinders, or badly worn piston rings.
If you can afford it, have a shop do a leak-down test of each cylinder to pinpoint the problem. Then you may know if you need a new head gasket, or a valve problem fixed when head is off, or new valve stem seals replaced, or if rings are bad requiring engine overhaul.

Jan 22, 2013 | 1995 GMC Safari

4 Answers

Blue smoke in morning start up


if it constantly is blowing out smoke trhen it sounds like you rhead is cracked. head gaskets or something in that area. it will run but ****. alos try an oil change if u havnt already..

Jun 02, 2009 | 1995 Honda Odyssey

2 Answers

1993 Cherokee Sport oil leak at spark plugs


Reseal the valve cover. Don't use a gasket, use RTV sealer for the best results.

Apr 27, 2009 | 1992 Jeep Cherokee Sport

2 Answers

Supercharged v6 staesman misfire and blowing smoke


cylinder head gasket or a valve stuck slightly open you can get valve cleaning spray from halfords spray in to air intake while engine running should free valve otherwise head gasket renew

Feb 20, 2009 | 1999 Mitsubishi Eclipse

1 Answer

Blowing black smoke on acceleration 2.5 exceed turbo intercooler I have a Mitsubishi 2.5 diesel with what sounds to be a similar problem except it happens when you rev the engine suddenly but stops...


1 Inspect Piston Ring Set Worn or broken piston rings. grey_line.gif 2 Inspect Valve Stem Seal Cracked or brittle valve stem seals allowing oil to enter combustion chamber. grey_line.gif 3 Inspect Head Gasket - Performance Head gasket leaking coolant into cylinders grey_line.gif 4 Inspect Fuel Injector Rich injector grey_line.gif 5 Inspect PCV Valve Plugged or damaged pcv valve. grey_line.gif 6 Inspect Engine Worn or scored cylinder block grey_line.gif 7 Inspect Piston Worn or damaged piston. grey_line.gif 8 Inspect Valve Guide Worn valve guides

Nov 26, 2008 | 2001 Mitsubishi Montero Sport 4WD

2 Answers

1993 TOYOTA TERCEL 1500cc Valve Seals Replaced now smokes much worse


You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.

Aug 23, 2008 | 1993 Toyota Tercel

1 Answer

My mx3 just had the head done and it is still blowing blue smoke once a day when i first start it... the mech that did the head said the compression was done and good and that when they opened the head...


Sounds like the excuse is a load of BS to me. If that was the case, the oil would of been burnt off during the normal test drive after they completed the head. I'm assuming you had a blown head gasket?

Blue smoke is indeed oil and if it ONLY occurs at start up then clears itself after some driving, it's the valve stem seals or valve guides (but more likely the stem seals).

They were most likely not replaced during the overhaul.

The stem seals stop oil from the upper lubrication in the head travelling down the valves into the combustion chamber and burning with the fuel.

While the engine is running, there is enough movement in the valvetrain (all the bits that move the valves) so that oil cant make it down into the combustion chamber.

However, when the engine is stopped and left for a period (ie: overnight) oil can trickle down into the combustion chamber through the seals which is why when you first start it up the next day it blows blue smoke. All that gathered oil in the combustion chamber is burning off.

The reason why they probably haven't changed the seals is simple: they make more money.

As a mechanic doing a head you have 2 options: You can either get what's called a 'Headset' which is the head gasket with all the other gaskets involved and stem seals OR you can buy the head gasket by itself and reuse the old gaskets and not replace the stem seals.

The head gasket by itself is half the price of the Headset but you can still charge the customer for the full headset....see where im going? Trust me, this kind of practise is unfortunately very common and one of the reasons I got out of the industry.

Once a car overheats due to a head gasket or any other problem, the stem seals nornally always have to be replaced because they harden due to the heat and lose their sealing power.

The solution? The head has to come off again to replace the seals and these guys probably know it so they are going into BS mode to protect themselves.

You have to insist they fix the problem because it wont go away and don't back down!

Oh, and for future reference there are only 3 kinds of smoke you can get:

Blue = Oil burning
White = Water burning (pretty normal in the morning)
Black = Fuel burning (Mixture running too rich)

Hope this helps :)

Jul 14, 2008 | 1994 Mazda MX-3

Not finding what you are looking for?
1998 Toyota Celica Logo

Related Topics:

314 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

70365 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

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

Answer questions

Manuals & User Guides

Loading...