bodgit and leggit garage opel astra how to prep the head for new gasket (part 3)
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- เผยแพร่เมื่อ 5 ต.ค. 2024
- bodgit and leggit garage
this video look at how to prep the head for new haed gasket
tips and tricks inside your video hopefully help you
don't forget get your hands dirty
astore.amazon.c....
astore.amazon.c...
this video look at 1997 opel astra and how to remove the haed
A head gasket is a gasket that sits between the engine block and cylinder head(s) in an internal combustion engine.
Its purpose is to seal the cylinders to ensure maximum compression and avoid leakage of coolant or engine oil into the cylinders; as such, it is the most critical sealing application in any engine, and, as part of the combustion chamber, it shares the same strength requirements as other combustion chamber components
MLS or Multiple Layers Steel -- Most modern head engines are produced with MLS gaskets. These typically consist of three layers of steel. The contact faces are usually coated with a rubber-like coating such as Viton that adheres to the cylinder block and cylinder head while the thicker center layer is left bare.
Solid copper -- a solid sheet of copper, and typically requires special machining called 'o-ringing' that places a piece of wire around the circumference of the cylinder to bite into the copper. When this is performed copper gaskets are extremely durable. Recently companies have started producing copper gaskets with integral sealing wires permitting their retrofit into engines without the removal of the engine block for machine work.
Composite -- an older technology. Typically these are made from asbestos or graphite but are more prone to blowouts than newer gaskets. Asbestos gaskets are becoming increasingly rare due to health concerns.[2]
Elastomeric -- a gasket type used by Rover on their K Series engines. It utilised a steel core plate with molded in place silicone rubber beads to seal oil and coolant passages. The bores were sealed by rolled steel fire rings in a more conventional manner. The idea behind the gasket design was to produce a production version of the technology used in F1 engines at the time. The original application of the gasket on the smaller versions of the K Series was very successful. However, an engine redesign resulted in persistent problems with the design -- the joint interface became unstable and the gasket could not cope.
The cost of a replacement gasket is usually not extreme, but the price of total repair is significantly high. This is because removing/replacing an engine head is very time consuming - around 75% of cost will be labor. Furthermore, untreated blown gaskets usually seriously damage the engine, then requiring even more expensive work.
150 euros for just a skim, wow!! I got a Kia 4 banger head hot tanked, skimmed, and valve job for $200 which is $168 euros! And now I am extra appreciative of all the machine shops I have access to in the San Fernando Valley here in California. Great video, thanks!
50sKid yes it's very expensive here €150 for head skimming and pressure test everything else is extra
am enjoying watching your videos the are very clear and your down to earth with your information. you would be great as the new mechanic on wheeler dealers. respect to you.
Mechanical George thanks mate and thanks for watching it's much appreciated
these are the best car repair vids ive seen!.
fiatvauxhall thanks mate
I learned how to fix my own car at the University of Bodgit and Leggit. :)
Saved plenty of pounds.
It's a highly informative video affording viewers an opportunity to learn with ease and comfort. Your style of teaching is just superb. could you educate us about how an Opal Astra's TPS works. I had recently had my piston rings and valves replaced but it trembles and dies when I step on the gas
+azhar malik Hi mate first check your timing and then check all your vacuum hoses are not splits or disconnected
That's a great tip on the bolt holes. I always blow out the bolt holes anyway, simply because I want everything as clean as absolutely possible before reassembly, but I guess that is possible to crack the head with pressure on trapped oil or water.
thanks mate
I am enjoying these video's, Thanks for posting! My confidence in working on cars in not the best hence why I love these video's!
great videos mate i wish id had them 20 years ago when i came across problems. these videos are so useful to people having a go at fixing there own car thanks mate tony leics
thanks alot mate
I don't see any problem with some light 180 grit sandpaper action there on a cast iron block. Especially if it's a graphite head gasket. I use a green 3M roloc plastic bristle disc (120 grit) to clean those up. If it was an MLS gasket on an aluminum engine block, different story!
50sKid yes mate it all depends on what the parts are made out of all so have to be careful with heavy sandpaper you don't chuck metal particles into the engine
A guy I bought a 280 special capri shell off has dozens of rare cars in insulated sheds, his name was boddington I think but he's passed on now, any way his mate had/has an avo in snow white AND it's never been run hard in fact it's in showroom condition apart from some dust, and it bides in a place called scotsburn near invergordon highlands of Scotland, I fell in love with it soon as I saw it, had a couple of 2 doors mk1s and couple 4 doors same with mk11s and I find that the 4 doors were better balanced than 2 doors, don't ask me why but when you are shifting along at 95 to 110 on highland roads and wearing all four tyres at the same time by drifting, wow, but I always preferred the little extra weight of the 4 doors, lol I'm probably the only one but I never pranged a 4 door but I oranges a couple of 2 doors.
sorry, if I mind correctly it was diamond white, and I thought that was the only colour they came out of the factory? so did your friend or you paint it green??
I'm about to put the head back on my 8v Astra. Original gasket was in good condition. So I polished up the head and block with 600 grit paint prep paper wrapped around a flat, machined square, ally billet. O chose paint prep paper because I knew it wouldn't shed any grit.
Car was cheap to buy with valve stem seals as a known issue, but failed after 2 approx months, big smoke and misfire. Driven 15 miles home before being parked up.
Took head off and found No1 ex valve chipped. Head off and very lucky to see zero damage! Guides were good, and new valve lapped in ok, new stem seals installed. Luckily, I was interrupted before I started torquing down the new head bolts.
Why lucky? Because I'd put red Hermetite around the gasket before dropping the head back on. (amateur with a bad memory, because I did one 6 years before) I've now been told it could be a disaster waiting to happen. :¬( So I just received another gasket in the post. Aargh, gotta re-clean it all up tomorrow.
Nice video! You could also do a valve seal change if you have the head taken out.
They are too cheap not to replace.
This guy is ace, no bullshit old skool mechanic
sorted thanks mate
Well been at garage week ago been told they still wait for head cylinder to be send from engineering cant believe takes so long I thing will go tomorrow 3 weeks to much . Thanks m8
Anytime mate thanks
I have eml come on. Gonna run a diagnostic test tonight see what codes I get. had a flat battery . jump started it and had this problem. Gonna check temp sensor too. Cheers .
ok if you get any codes let me know and I'll look them up for you
My grandad use to use sandpaper in the head or block or years like you #oldschool
Boom
Love the name :)
Great video have made me feel a little bravior to do mine if it's needed, found a oil leak yesterday and about to investigate.
Have a vauxhall combo Petrol/lpg do you know of anything else i should be looking out for.
buena video ! yo tengo Astra F c20 ne . tengo anos 20 !! es buena coche . saludos de Japon.
Thank you!!!😊😊😊😊😊😊😊
Great vid mate very helpful, I'm going to change the gasket on my corsa 2002, do you know if I can re use the head bolts? Secondly do I need to take the timing chain off?
hi mate yes you will need new head bolts and you will need to take the chain off personally I will replace the chain as well thanks for watching and don't forget get your hands dirty
will do . Thanks for the help.
glad i can help mate
should i change headgasket also when i change valve set??
brightfuturecafe phektown yes mate
great video. my aveo 1.5 has the same engine
sorted
Part 2 pls
Hi nice vid where is your garage based? I need to replace head gasket on Vauxhall Astra 2000. 1.6 16v. And any idea how much will cost ? Thanks.
hi mate we are in ireland
Nice videos, are it a common issue with the head gasket going bad but the hoses does not become hard? My old astra starts to behave oddly with air in the coolant system
been bleeding air like an idiot and it works for a few days then it sounds like a waterfall in my heatermatrix think my head gasket might be screwed i have the same engine x16szr
Hagis2k it's hard to say are you losing a lot of water or is your water and oil mixing you need to put a sniffer test on it to be on 100% sure
Haha i was losing a lot of water... but in the cabin i blew my heater matrix so i am in the middle of replacing it :)
Its is possible that engine block could be warped ? Should the engine block be checked to see if warped ?
Hi what normally happens is the blackwall crack rather than warp but the head can walk quite easily especially on opel lol
Hi mate nice video there. Just need to ask you have you done a video on a broken timing belt or chain?
Dinesh M hi mate 99% of the time anything like that happens you need to change the engine I've done a video on a stretched chain which damage the engine beyond repair we just replace the engine on it but when a car comes in with this problem I will certainly film it thanks for watching
nice one pal. have you got a video on engine change?
brother i have opel astra 1.6 1997.. no full acceleration.. please.. riming mark is also correct... i am suspecting valve.. plz help me..
top name. top job. subscribed!!!
BUNGLE BEAR thanks mate
When you sand, what if metal residue gets between cyliner and wall. Then you've got a big problem. You should put tissue in each hole.
I've been doing this for a long time. I've built thousands of engines never once have I had any issues.
Nice mk1, Mexico by any chance?
Hi 3 weeks ago left my car in garage to fix head gasket in vauxhall insignia is still not done !! How long is take to fix it ??
Hi mate if they don't have any problems with any of the bolts the head should be off within the day then send it down to a engineer in crowd if it need skimming that's normal around 2 days and then another day to put it back on we normally have them turn around within the week but there is some cars we had problems with and have taken a bit longer hope that helps thanks
hi mate. I've got a opel astra 1.4. 2002 model. keeps running after I switch it off. Have you any ideas where I should start ?
hi mate do you have any engine light's on and has this just started or have you replace something and then it started the one of the things to check is your temperature sensor they are very cheap you can replace it
Im right now "reading for my exam":D
whats in the mk1 escort
GOD BLESS YOU!
thanks you
i hav replace the ignition coil.. bt then still the same... in sparkplug ther r alwaz black powderwhen i remove out the plug...
Hi mate check the throttle cable and where the cable jointer throttle body check the butterfly valve
bodgitand leggit hello i have check everything... but same.. acceleration rpm full acleration to 4-5rpm only... it never reach 6-7rpm.... speed 1 to 5 rpm but not ill 6-7rpm... help me a solution...
bodgitand leggit what are the problem if a car valves is damage..??
brightfuturecafe phektown hi mate the car will not be running very well ill be missing and spluttering and possibly blue smoke coming out the back and you will have no power
it's running too rich if there's soot on plugs, perhaps faulty idle control valve or cold start injector stuck on.
how much cost? i have a 1.4 1997 corsa
around 2000$ with labor
why was cylinder head discolored on the 4th cylinder? it look a bit red
Hrvoje J. It's old Burns oil but oil hasn't been changed regularly in this engine
bodgit and leggit garage hey now that i have your attention i have a question for you. I have a problem with my astra. th-cam.com/video/SFD7fgJRq8U/w-d-xo.html
do you have any clues what might be causing this?
Hrvoje J. Impossible for me to say it could be a hundred and one things wrong with that the only way I could do that is have and do my own tests
bodgit and leggit garage ok thanks anyway.
Why do you use a cheap bendy ruler to test the head for warps? Better off using an engineering straight edge tool. Sealey make them for €60
afarrell10 I just like to show people even with simple equipment they can test it I have an engineering level but it's like €500 no point me showing that on a video as people will not have it you can still get away with using this type of roller just to see if your head is badly warped
Traduceti
wow 150 euros is too much