Valve Stem Seals Explained

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/ driverstherapy
Learn about Valve Stem Seals in this video. We talk about what valve stem seals do, symptoms of when they go bad, and the different types of seals you can buy.
I still have those set of free GSC Valve Stem Seals for a 2JZ-GTE. I will send them out but you pay shipping.
Thank you for watching
Tags:#valvestemseals #whatisavalvestemseal #valvestemsealreview

[@TR4G]

Hey man I find your candor extremely entertaining. Its hard to watch one of your videos without chuckling. Keep it up, great stuff, very entertaining and certainly informative.

[@DriversTherapy]

Thank you! I really appreciate the kind words. Makes me day!!! 🤘🏽🙂😎

[@johnhanselman6371]

I appreciate your lesson. Very informative.

[@DriversTherapy]

Thank you, I appreciate you watching.

[@mikeprice8307]

@@DriversTherapy what if the smoke is blue and only happens during cold starts only?

[@TheXeroxis1]

Thank you!!

[@DriversTherapy]

Appreciate you sir.

[@wrotedog]

Awesome vid. Ka24e giving these problems. Just ordered viton seals.

[@DriversTherapy]

Glad to hear the video helped out. If you have any further questions let me know.

[@jessicaandtrains7768]

Trying to diagnose if i have this. Car is smoking but only when oil is at operating temp. Can smell oil when it smokes. Am guessing the oil thins when its hot so maybe the gap on the stem is quite small? Other possibility is turbo seals.

[@DriversTherapy]

I am not sure, but valve stem seals will leak and smoke on cold start and on takeoff from stops. It sounds more like the turbos, what kind of car is it? You can see if it is the turbos by doing a few things, first remove a charge pipe from and see if there is a lot of oil, next, have someone film you start your car after it sits overnight.

[@MinkMood]

Amazing videos, learning tons from you. Question shouldn't you have used Valve Seal Fitting Protector Sleeves installing your new seals? I'm about to tackle this job in the weeks to come.

[@DriversTherapy]

Thank you so much for the compliment. Comments like these make my day. As far as your question goes, I am not familiar with the sleeves but after reading about them, YES!!! OMG, if I would have know about these it would have saved me a ton of time. I scratched an bore and it took me hours to fix it. Hours...lots of anger. Yes, use them. I have a video showing how to use the stem tool as well.

[@MinkMood]

@@DriversTherapy thank you mate for the quick response. The ones that I saw, they are small plastics that you position on top of the valve while you are installing the Stem Seals. I think the idea is just to protect the lips of the Stem Seal while we push it down in place. (Avoiding the seal potential scratching it while pushing it through the keepers place)

[@DriversTherapy]

@@MinkMood Oh, I googled it and saw a sleeve for the tool which is what caused me issues. The valve will be ok with the tool, would be real hard to hurt it but the tool can damage the bore. The sleeve for the tool is smart. Either way, both will only help avoid any damage or issues so I would say buy them both.

[@MinkMood]

@@DriversTherapy Thank you so much. Can you share with me the link of the BoreProtector? Ill buy it. Great IDEA!!!

[@Calm-Cute]

Thanks bro

[@DriversTherapy]

My pleasure. Thanks for watching the video.

[@djalifam-alient.4759]

Great information but I have a question...... What happens if oil intrudes at the bottom of the valve stem seal where it sits on the valve guide? Are the valve stem seals also sealed inside or is it just on top?

[@DriversTherapy]

They sit down on seal at the bottom and there will always be a little but of oil but should not leak down into the cylinder because of the valve stem seal.

[@justincollier4403]

Ty

[@DriversTherapy]

Your welcome. Appreciate you watching!

[@blatt5478]

Do you have to oil the valve stem when inserting it?

[@DriversTherapy]

Yes, just a tiny bit. Always oil new rubber components.

[@MrEyad1990]

Hey man my LT1 has metal valve seals and I only found full rubber ones wich is better metal or rubber?

[@DriversTherapy]

It depends on the application honestly. What valve stems did it come with from the factory? I would stick with OEM parts to be safe.

[@thomboy-8850]

My s2000 on start it doesn’t smoke up but after about a minute it starts to smoke heavy I got new seals but the machine shop put the exhaust seal on the intake side could this be the issue?

[@DriversTherapy]

It depends on the seals; some seals can be used on both the intake and exhaust sides but usally they are different sizes.

[@someone1089]

Does worn valve stem seal cause positive pressure in the head cover? My toyota 2AZ-FE blows out a lot of air and oil droplets from the oil cap, when engine is running and oilcap is open.

[@DriversTherapy]

That sounds like a PCV issue. The goal is the PCV is relief the pressure and vapors that escape past the combustion process via the pistons rings. Certain oil catch can setups prevent that if not installed correctly by utilizing a vacuum source.

[@someone1089]

​@@DriversTherapy Thank you for responding. I suspect the same first and installed new PCV valve and replaced valve cover gasket. But my Toyota Camry blows a lot of air like a fan is running, but opening cap of Honda Odyssey there is nothing, no suction or air blowing at all. Here is a video of Camry blowing air. kzbin.info/www/bejne/enfCZ4qOYrx-Y80

[@georgealmeida7382]

Your rings are shot or improper crankcase ventilation system

[@migosmadeira9892]

Just curious, if the valve stem go up and down in the valve seal, wouldn’t be easy for the seal to come off in place?

[@DriversTherapy]

The spring sits around the valve and the rest of the valve train sits on top of it keeping it in place.

[@daviscook3128]

Thats a sick CRX shirt! Where did you get it?

[@DriversTherapy]

Hi! I got it at PetrolPassion: petrolpassion.eu/. They are in the EU but I have ordered a few times from them to the states with no issues. I love the shirt too.

[@Calm-Cute]

Is that your matter!!!!

[@migosmadeira9892]

Just curious, I will be replacing my cars seals soon, since the valve stem moves up and down thru the seals , how do the seals stay in place? Also my car dont smoke a lot on the first start after sitting overnite, it only smokes ( bluish) when you idle it for 10 or so minutes while on park and then you rev it thats when the smoke come out . Also no smoke during the idling , only when you rev it the smoke come out? Do you think the seals are bad?

[@DriversTherapy]

Can you tell me what type of car and engine is in it?

[@migosmadeira9892]

It’s a 2003 dodge caravan cv, sorry it took me a while to reply

[@migosmadeira9892]

6 cyl and 3.3 engine

[@migosmadeira9892]

The smoke does smell really bad

[@alexandrebarnes4569]

Oem colors , green =exhaust / grey(brown) =intake ?

[@DriversTherapy]

This might help. www.supraforums.com/threads/oem-valve-seals-which-is-which-intake-exhaust.652672/

[@mikeprice8307]

Your smoke looked grayish white. What if the puff smoke is blue?

[@DriversTherapy]

Blue is usually oil. It depends on the lighting and amount of oil.

[@mikeprice8307]

@@DriversTherapy 08 GT500 25k miles. Burps a noticeable puff of blue on cold starts, especially in cold weather that last 1 sec. No oil consumption nor CEL, but can smell it in that puff. No other occurrence until next cold start. Even new PCV valve with usage of oil catch can. Should I be worried?

[@DriversTherapy]

@@mikeprice8307 it could be a valve stem seal but usually they are noticeable even if you leave the car for a few hours and start it. It’s hard to tell without seeing it. I wouldn’t let it bother you to much since it is such a small amount. Any modifications?

[@mikeprice8307]

@@DriversTherapy none.

[@DriversTherapy]

@@mikeprice8307 I can not say with certainty but if you do smell oil and see a colored smoke coming out, there is a small leak somewhere but not enough to worry or repair it. If it gets worse you will know. I had a lot of smoke and it leaked bad so I fixed my issue. It is a lot of work to do it yourself and expensive if you want someone to do it. I would keep it in mind if you ever need to repair or upgrade anything in that area.

[@kevenhang4799]

🙌 can i get the extra valve stems? Haha

[@DriversTherapy]

Hi Keven! Sure, send me an email and we can set something up. Just wanted to let you know again that the GCS set is complete minus one but I will throw in 2 Supertech Performance intake/exhaust seals for you. The Supertech ones are side intake or exhaust dependent so just make sure you install them in the correct placement.

[@kevenhang4799]

@@DriversTherapy [e-mail]

[@DriversTherapy]

@@kevenhang4799 email sent

[@nintendokid312]

Cut or paint those nails already lol.

[@DriversTherapy]

hahha those are not my hands.

[@rhybreadguy]

It's funny as hell, part of the therapy

[@douglundy5755]

thanks for the video but do you really need to comment at no end on the obvious? One suspects youre getting paid by the word. Good luck making videos but please get to the point.

[@DriversTherapy]

Not for the money, I just ramble but I appreciate the feedback. 🙂

[@my2centsrc202]

Look at his nails 😅

[@DriversTherapy]

Not my nails lol.