My Engine is about to BURST! Volvo Redblock PCV System 

Seeing an involvo'd video being posted is now synonymous with a good day for me, don't know what it is about these, but you always manage to make my day!

Really liking this channel. I'm quite familiar with 940's. They are bullet proof but if you neglect them for years you can run into a lot of maintenance jobs. The good thing is that they are simple engines.

The finger....priceless

I don't think there's anything worse than replacing a part and finding out the issue is still there! Can't wait to see what the next video brings!

Laughed out loud with you lighting the heater. Hilarious.

The ending 🤣 and the music 👌😄 Great vid, God loves a tryer , good luck 😊 xx

"It's the thought that counts" LOL. The look on your face ... priceless.

Ahh the good old PCV - I’ve done the glove test on all mine in the past. Always enjoy a new Involvo’d video

I was told by older Volvo mechanics not to remove it because it often breaks the pipe on the pvc box that goes down to the oil pan. They recommended using engine degreaser or brake cleaner real good, then let it sit a bit and then do an oil change.

Next thing I would check is the small diameter hose (that attaches to side of flame trap) for clogs and the threaded nipple that it connects to on the manifold. Hold onto your old breather box (for spare) and see if you can soak it and clean the internal deposits-a lot of the aftermarket boxes leak at the midpoint seam. Looking forward to see how this turns out.

The ending of the video is incredibly relatable. I've had plenty of times that I've replaced something on my 244, which ended up being perfectly fine and not the source of my problem...

Ha! Another redblock classic ;D. Had also excessive pressure blowing everywere, eventhough I cleaned the PCV 6 months ago. Decided to relocate the PCV in more accessible place. Used some rubber hoses and plumbing parts to DIY it. It seems to work better now and I will propably change the oil soon too. Yeah. Years of neglection... Gotta clean that redblock eventually ;D

had this issue with mine, deleted the pcv and ran the holes to a vented catch can. made no difference, so bought a vented oil cap and ran that to a catch can aswell. fixed pretty much all the oil leaks from caused from excess pressure

I love learning new techniques with every video. I'm still fairly new to engine repair and all I've really done has been on a 93 240, so all these little gems you drop are invaluable. Thanks for another video!

Always a good start to the day to see a new video. I was crossing my fingers that it would be the PCV or EGR valves. Looks like it will be a trilogy! My hopes that it won’t be anything too bad.

Its true. Fresh oil en filters keeps your car in perfect condition. But dont forget the coolant👍👍

You have no idea how long we've been waiting for you to find that note! 😂

The glove in the final minute is hilarious! Alt belt looks to need tightening. Love the channel and now subscribed as I have five 240's at present, two 544's and a 945. Always had numerous 240 throughout life. Thanks buddy.

I thank you very much, I loosened my medlar and it turned out that the sensor was damaged and I replaced it

Good video as always mate. That shot with the glove reminds me of those wacky waving inflatable arm flailing tube men!

I’ve watched and enjoyed all the previous videos. Completely up to date with watching and waiting for the next video to come online. Like it a lot. Think Volvo’s are well build cars. And like old Škoda’s you can pretty much repair everything yourself.

Learn so much from your videos I actually want a Vovlo

Nice! You made it look too easy, either the 740 has more room than the 240 or you are a genius. Thanks for sharing!

Now that got me rolling on the carpet, Makita lamp as means of illuminating the whole scene, Haynes manual on the engine block, scrolling through it with - most likely dirty - gloves on lest the fingers might get colder than they already are...

Nearly as soon as I got my 245. I brought it in for a clean/replace PCV, IACV and FPR straight away. Huge improvment. I was hoping at the end you had added the tune for Boris from Snatch.

Supervideo and great explanation

Hells Bells! That ending!

8:26 Mechanic moment, then u drive with the car without thinking of the problem for some time then fix it when u calm down

I suggest oil change to shell helix petrol & diesel 5w40. Cleans piston rigns, or try engine flush. Even a good run on german motorway on full throtlle might help.

1:47 The 1989 244 I once owned had a lot of blow-by. When the PCV system plugged up unbeknownst to me the pressure got so high the engine pushed out both the front main and intermediate shaft seals. I guess in hindsight it was fortunate the rear main didn't get pushed out, that would have been much more problematic. Anyway; I still needed to drive (thankfully very short) to work so for 4 days I put quart after quart of engine oil in as I obtained seals, a timing belt and almost every part of the PCV system right down to each hose. I have the same Makita light, very handy.

Loved the how you ended the video. Still laughing. Looking forward to final fix.

Stay away from flames is my advice..lol.

That was funny at the end.

Ah the ending was hilarious. Maybe need to replace the two hoses as well? Thanks for these videos going to replace my pcv for the first time on my 328,000 kms turbo redblock

I've watched this video again and the next one .You've given me the inspiration to tackle mine now I have finally got my 240 back from the incompetent Volvo specialist!!!

i cracked the bottom of my oil pan a while back while parking, patched it up with some of that metal/glue epoxy stuff that bonds to metal, leak eventually came back so I reapplied it again but this time spent a little more time filing down the surface to get better adhesion, about 3 months later it was leaking again turns out i have positive pressure in the crankcase which is why it keeps failing - it probably saved my engine before replacing the pan i'll have to replace the pcv and clean/replace the hoses that connect as well as clean out the oil pickup and i believe there is also a channel from the base of the engine that feeds the pcv which easily gets blocked - not sure if the red is similar but perhaps that's why your repair hasn't turned out as expected

Neglected/Restricted air filters may also contribute to high crank-case pressure.

3 years ago I went to the considerable trouble of removing the oil separator box from my then 29 year old 740 GL with the B230F engine. After more than 425,000kms I found it to be completely clean! Boy, was I pleasantly surprised! I guess that says a lot for only using top quality oils (Castrol, Quaker State) and filters (Volvo, MANN) and never running more than 3,000 miles between oil changes. :)

Oh that cliffhanger! I'd check the lower breather tube as mentioned above. How's your RMS doing with all that blow? :) Usually the catch can does not need to be replaced, soak it over night in diesel and its as good as new.

Love the channel, would my B230E KJet engined Vulvo have one of these fitted?

What's that clankity clank your water pump? Oh how I love mechanickin' xD

I thought that your beard was a goner when the fire burst into flame. Don't worry, you will get the problem sorted.

It seems a bit worn engine. Breathing out some combustion air from top or bottom, or both like valve sealing surfaces, valve guides, piston/cylinder sides, piston rings. Cheapest try could be some diesel flush as a motor oil, could release some build up on the piston rings and make it seal better. However that is not the worst blow by I have seen.

Did mine on my v70 T5..Annoying and time consuming job but the engine is not blowing.. Perhaps you're going to have to clean out the rubber pipe or replace it.. Its also a good idea to clean out where the pcv box attached to the engine..Maybe try running a good flushing agent like liqui moly apparently it works well cleaning out built up deposits..Good luck mate.

Grüße gehen raus!

Tragic outcome, dammit. Final inflation leads to total deflation. Only temporary I'm sure. Keep smiling !

У нас это называется САПУН(возможно от слова сопеть - пыхтеть, травить газы во сне храпеть) и то что ты его заменил, а давление картерных газов осталось - скорее всего какая то трубка внутри закоксовалась и наглухо перекрыта(честно говоря ожидал что на видео ты промоешь старый САПУН и заодно все трубки и штуцеры соединительные, ибо у меня даже на турбине как то встретилась намертво закоксовавшаяся трубка слива масла с турбины, а она диаметром 2 сантиметра почти и ее не сразу пробил даже сильный растворитель). Так что мой тебе совет - проверь все все трубки и соединительные отверстия под них, промой все растворителем, почисти впускной коллектор с его трубками ваккуумными. И еще то очень нехорошо восьмеркой играет ремень генератора, быстро сотрет, да и ток он не настолько эффективно вырабатывает, надо поправить и натяжение и выровнять)

yep exact problem with mine also! i did the box and trap but still had that problem, to be honest i just left it after that 😬

There's a tube going into the sump. It could be blocked as well.

Can the pcv be deleted in a sense, or replaced by a better system? Seems to be a weak point on these redblocks

Its a common issue. If the car has lots of mileage, the rings are getting worned. Compression goes through the pistons.

Was the flame-trap housing connected on all 3 sides? On mine the small diameter nipple was broken off and leaking vacuum. Bought a new housing and after connecting everything properly my crankcase pressure went from positive to negative. If you rev the engine up and crank case pressure goes from positive to neutral or negative at slightly higher revs it's an indicator for a vacuum leak. Edit: Crossing my fingers for you it isn't blow-by

🤣🤣🤣🤣🤣🤣good ending

ist bei meine sauger auch so (verlieren kein öl). Liegt vermutlich daran das man im leerlauf keinen wirklichen unterdruck hat beim sauger.

I think your high crank pressure might be due to rings sticking due to naff oil being used!!! One thing to be really careful of is the oil you use in a turbo engine, as the turbo is exhaust driven the heat build up is massive, if anyone just turns the engine off after a blast the oil 'cooks' in the turbo and restricts the oil drain. The oil drain restriction causes the flow to decrease and eventually kills the turbo. Synthetic oils can stand the high temps in turbos so much better. Don't even look at semi synthetics as they are just mineral with a splash of synthetic - just marketing bull. Hopefully high crank pressure is due to ventilation system not stuck rings! Good Luck.

If I did that with a glove on my wagon it would flip me off

Do you ever get the feeling if it weren’t for bad luck you might not have any luck at all? Hope this works out for the best.

IMO the blowby is actually not too bad. I mean, i have seen way worse. All engines have SOME blowby. You now know for a fact that the PCV system is OK. Now just run it. Also, to be fair you would have to test the blowby at full operating temp because only then will all parts (block, pistons, rings) have expanded fully due to heat.

Ugh on the PCV situation…I did notice though it looks like your drive belt is a bit floppy as well. Perhaps it’s on the list to be changed?

I can't believe its fighting you so much. Isn't it happy to be saved?

My 940 keeps overheating, the only thing i haven't changed is the water pump.any suggestions

What if it sucks the glove with a lot of suction?

Had this issue with my 2.5t v70, scared the shizzle out of me. Anyway, i think they only blow out the freeze plugs when the pressure gets too much?

I swapped out my pcv and flame trap and flame trap hose with new ones, and cleaned my MAF, but still filling up the glove. Any ideas???

Vaš video mi se jako dopadaju

Can somebody tell me why there is at 6:29 no second ring mounted on the left side?

10w40 is semi synthetic oil, right? Or is this full mineral? I guess cars that are around 30 years old will have run on semi synthetic as it was very common back then too. Or am I wrong?

Maybe in the meantime you just got it fixed. If not I have figured out some interesting details. Below the oil seperator box there is a hose going down to the oil reservoir. On my Volvo 240 this hose is nearly full of debree too. In this video someone refurbish a motor and you can see clearly where this hose is sitting. Maybe you have to clean this hose too? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GIVhKtua8s4.htmlsi=dFDAWF3qalB8omQQ&t=1892 And in this video is a short sequence where you can see inside this black box. If there is any fluid to lose all the debree it should be possible to clean the box instead of buying a new one. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0YDoLSj5n5k.htmlsi=dTk9BwOClSvo_pji&t=126

Hey bro, I need to do the Pcv on my 850, its such a crap job that my mechanic refused to do it!

Hello my friend, which country are you from?

Does the pressure arise from exhaust valve leak-by ?

@3:45 i think you should have cut to a clip of you actually stripping lmao

What percentage of fat is suitable for a Valvo 940 .?

Bro! That was funny hahahahahahaha fucking PCV system. Hahahahahahaha Bro check for clogged hoses!

Where do you live brother?

🤣🤣🤣🤣🤣🤣🤣

and flush with wynns engine flush before every oil change