OPEL Z20LET HEAD GASKET FAILURE & How To Fix It YOURSELF! 

Sorry for the reupload guys! RU-vid playing games again 🤣 enjoy/comment what you would like to see next. Im watching 🙌🏻

I really want to see u restore a calibra. Time for the start of a totally new project?

It's inspiring how much effort you put into building these engines. I wish I lived a bit closer so i could get mine sorted once for for all. Problem after problem and off the road more than its on

Opel/Vauxhall lovers😩💪 One of the best cheap Eu cars ever!

You are freaking so cool, obviously done this a few times, doing my timing belt at the momont and your tips are so cool. Thanks man

Nice one for sorting the car Aaron. It’s driving so much better and pulls much harder on boost too 😎 time for some more upgrades now 👀👌🏻

Love the reupload. Saw the first version as well. Both versions are mint.

Watching from Australia Great video mate. You should do a video on the highest reliable bhp you can run from bolt on parts with a stock z20let internals for the people who can do abit but not too in-depth like rebuilding turbos etc like your other video. 🙏🏻

Hi, from Russia. 😉What you use, for cleaning the pistons??

Just about to attempt to do my head gasket myself so using your video for tips. What size tap did you use to clean out the head bolt holes?.

Your attention to detail is second to none. 👍

Really insightful, Great Saturday morning content, Merry Christmas

I’d love to see a turbo nova build or even just a nova build/resto

So nice to see head without cracks around spark plugs, on other hand so sad when I see engine block cooling pathways so rusted. I honestly do not get it why people use tap water? Water is great in thermal conductivity, but all benefits go away once when block starts to rust. It could be head gasket failed due to that reason anyway, since heat is easier to build in the block and harder to transfer on to water when block is rusted. And there you go. One thing that can save the day is using undercut cylinder head bolts. When things get hot, claim is, it helps to save the day since undercut bolts allow elongation just as needed to save the head gasket. It is nice story from ARP, hope it is true. Like the video, thank you for sharing! and hope owner shall clean that rust and stop with tap water usage :)

Would love to see a budget build. Source a z20 car and "fix it up" mechanically while still having a budget in mind. Would be cool to see how far you could go with say £2500 for everything

Beautiful machine. Magnificent work as always.

Glad to see it back 👍🏻any updates on the Fiesta?

Loved this one nice and long and lots of great tips,did all this to my Sri turbo a few years back and really enjoyed it.Once again thanks for making these vids on these cars really do Love them,more Astra vids always appreciated and driving vids would be good too,keep up the great work and have a great Xmas mate🙏👍

Great video thanks for sharing, useful info for my Meriva VXR!

Great informative video what did you use to clean the pistons

Top vid Aaron your vids are all ways so helpful 👍

Love your vids mate, I think a voice over to describe your moves at the start would have been ace.

Great video Aaron, amazing work and explained beautifully as usual, sounded awesome 👌👍😃

Great video. If you were local id defo have you do a alot of work. Very impressed

More evo content..and what happend to the fiesta rs turbo?..and get the escort rs turbo back out..need to see more driving video's of them please👍👍

Very thorough once again 👌

Do you have the link for the thread chaser tool

excellent video many thanks

Cracking video mate 👌I'm currently having issue with losing water not sure if it's the common fault with the oil cooler or head gasket but car losing water over night so hoping it's cooler 🙏but I've been thinking doing head gasket my self this really helped thank you where are you based please if decided to have it done and not do my self

Opel Zafira next.......Please......

hi, you are doing great work. I want to change the cylinder gasket myself. How can I find out the tightening torque of the bolts. thanks

Fantastic 👏 thanks for sharing

Well Aaron I am looking at a 06 Astra Z20let here in Ireland it's in a scrap yard selling complete the cat is gone off it I'm just wondering any tips on what to look out for on them engines

Great vid, Couple of questions, you know you have to fit the oil restrictor when fitting the VXR turbo to the Z20LET is this the case for Z20LEL/R? Also is the stock 2.25" exhaust fine for VXR stage 1 power 260 - 270BHP? I have a LEL I fitted to a Astra H van, It runs 80mm MAF, VXR Injectors, VXR ECU so should be close to the VXR 236bhp on stock turbo / intercooler. I have pre cat delete, stock centre cat, power flow centre section and it also had a power flow back box but was way too loud for a daily van so I fitted a stock Astra van back box still 2.25". My Plan is to fit a VXR turbo ( already have a junk VXR turbo so will source a core) and a cheap front mount intercooler in the hope to run a healthy 260/270bhp. do you see any issues with the above?

Love it mate think I might have to do my vauxhall zafira 1.6 soon as the emissions are through the roof any ideas

Love the use your ears son, That's Colin Chapman right there

Hi Aaron, great videos thanks. I see you’ve been asked what you use to clean carbon off with, can you let me know ? Thanks

I'm just happy to see videos on Astra G... What's your engine capacity? I have a 11.8 how do you make it fire?

Really want to see you do my car so I can watch 👀

Aaron why did you not flow it whilst it is off? I’d love you to do a video showing how to do that! I’ve never built a one of these engines but I think after all your videos I could now! 😂

Wicked video mate. Love your channel 👍

Did you check to see which headbolts were loose / had lost their clamping force. Realistically most of the time you can eliminate the leak just by retorquing the head. This applies to just about everything with an aluminium head.

Wow. Great work en like you're cars

i have a z20let but i cant get any hand on the GM parts for rebuilding it... where can i get the parts for the engine?

Hi hi Aaron valve stem seals would you recommend victor reinz stem seals or stay original

Quality video. Are you doing anymore work on the fords? What’s your plans with the fiesta

Hi. What size is tap u use for the head bolts please?

Where abouts are you mate?? How much u charge? I need ring's doing on my forged z20leh

I want to see you working on my car in the next video 😉😂

Amazing video

how did you clean the pistons?

enjoyed watching this

Top video 👍 quick question do you have a garage that’s like open to the public for Vauxhall repairs? As looking for a Vauxhall specialist

Great informative video matey 👍

I used Ford Motorcraft RS Turbo spark plugs. I've read about the tips falling off the NGK ones. I did measure the plugs and the where the same length. Not sure on the gap though so left them as they come. Seem to work OK.

Top stuff as always 👍

Hi Aaron, off the top of your head would you know the Bolt & thread size for the turbo oil return into the block? thanks

Very helpful thank you, love you astra awesome

where do you find all these genuine GM spare parts man?

Any chance you could give my colt gti some love it’s all sweet just want it tearing down and checking as you the man 👌

Hey Bud, really considering one of these for a Track toy, have heard mixed things on their handling. How have you found the handling and what specific upgrades have you done. Front and rear ARB and bushes? Thanks!

Mr Uknown where can i get some high tensile bolts from for the majority of my build mainly want balance shaft delete bolts main cap bolts etc cheers for good content mate!

Hi how can I get you to do my engine rebuild. On my vauxhall zafira gsi

What is the normal running temperature of an astra G opc/vxr? 90?

Method to clean block surface?

How much do all the mods effect the insurance price compared to a standard car?

Nice work 😎👍

Having trouble with first gear linkage

My Z20LET could use some love aswell :(

How much for you to do my adtra h 1.8 sri gasket???

Astra's garage... 👍👍👍

How come you didn't put a new cam belt on? Great video as norm. Why you are not on 100K subs I will never know.......

Hello mate.Why go that way cheap-not changing the timing belt,all the pulleys and water pump when do head gasket job?

Where do you get the retainers from their own from? Only ones I see are the red nevlock ones? I got green SKF ones here, but do not know where to get the retainers from so they dont pop off.

Hi Aaron great video as always 👍 Were the retainers on the exhaust and inlet or just the inlet side? Also that crank pulley is it a Courtenay one?

Tpu definitely numbered them headbolts wrong

Lookin Fresh

Recommend 10w40 semi over a full synthetic? Even for z20leh with pressure and squirters Cheers

I need a cylinder head to go on my z20let if you have one for sale UK. I just test run the cylinder head i bought but I am using cam caps from my old engine, long story story, it has a fair bit of play in there. If I put the cams and cam caps back in my damaged old head, its fine, no movement or rattle.

The bolts for the camshaft wheels have to be renewed every time they are loosened mate

Which control device did you use to program the launch control?

Спасьба

Ur mates must love you lol

Hi, what model of Astra has this engine in as standard?

Hy, what stage is on car ? and how much power?

Geezer

600 cv vraiment ?

cheep b204 build?

First

70k miles is nothing...... for any car engine. Unless its a 3 banger pos or smaller of course.

Been told off again?