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Change of spark plugs on astra bertone,

2.6K views 13 replies 5 participants last post by  vexorg  
#1 ·
Hi i am trying to change my plugs on my astra bertone 1.8,

I have got the main cover off after taking oil cap off and unscrewing the torx bolts, Underneath is the coilpack I believe but they have reserved torx bolts (female) ? Does anyone know the right size for these?

Have got new plugs and am fed up I can not get to the old ones! :(

Thank you,
 
#2 · (Edited)
8mm standard socket fits perfectly tight enough to remove without worrying about spinning or rounding them off, and could save you having to order a specialist socket set if you don't own torx sockets (star type) already. I know some people are not keen on buying tools they will probably only use the once.
I know it sounds a dodgy-bodgy way of doing it but it is perfectly fine and they come off easy enough as a rule.
As for the exact size torx socket, I cannot remember off the top of my head. I'm sure someone will pipe up with the correct one ;)
 
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#4 ·
Thank you, I have seen this 8mm trick, I am trying to get the right tool if possible, I am one of the people who don't mind :)

I have had to order bits in before, I am hoping to get a torx socket for this, Or a set if possible just a single socket tho.

Thank you DrewKrewUK.

Yeah i posted about 5 times... Seems like there is an issue with vauxhallownersnetwork forum script? I am a web designer not likely to duplicate post. :/
 
#5 ·
My boards going crazy, i'm logging out for a few hours it is going really bizarre and i'm getting grumpy at having to reload pages and edit stuff lol. I've undone mine about twenty times in one week with an 8mm socket and there's not a mark on the bolt heads, but yes, proper sockets are always nice ;)
 
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#6 ·
Okay i will give it a go! :)

Do i have to take caution with the coilpack have never removed it? Have been in about 30 minutes after a drive will it be hot ect?

Also do the spark plugs have to go back in certain order? Or just whack them back in?

Is there any torque settings for the bolts and plugs too?
 
#8 ·
Thank you Old Codger!

I have been down to "halfrauds" today to grab a socket, Managed to get a E10 Female Star Socket Which i believe will do the job which will now happen tomorrow morning as its dark.

Slightly embarrassing, I was not sure what the socket was called, But i own a E25 for my Nova back in the day! :)
 
#9 ·
The coil pack can get warm yes, but it's plastic so it's not going to ever get 'that' hot but it's so easy you will kick yourself.
Unplug your battery at least 15min prior (make sure you have your radio code if factory fitted radio installed) this is precautionary to avoid the ECU detecting the coil pack is unplugged/missing and throwing up an error code.
Pop your plastic trim panel off the top of the engine (two torx screws), unplug the electrical connector (it has a press release latch) then remove the five torx bolts holding the coil pack down, give it a good firm tug upward and it's off - if it's stuck it has some bolt holes you can thread into to give you something to pull upward on. Sometimes they have a bit of a vacuum seal from the rubber grommets on each tube which make a pop sound when the pack pulls off quickly :)
Vacuum out sparkplug recesses and remove/swap for new plugs (you don't want cr*p going into your engine)
 
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#12 ·
Thank you again DrewKrewUK, Will refer back to this in the morning before proceeding.

I am planning on using my compressor to blow out the plugs before i remove and replace to avoid any dirt/crap going into the spark plug holes.


Thank you Erroneusbogz, I have had a look might order some, Although i do have a male torx set which is complete, Might just get a socket set if possible,
 
#14 ·
Or just buy the right tools. A set of star (female torx) will be invaluable if you intend to do any diy work on the car.

Plugs are easy, just take your time with the coil pack working it up from each end.
Do NOT over tighten the new plugs, they can break or strip the thread easily. You can use a torque wrench, I tend to do them by hand until the seal mates, then you'll get about a quarter to half turn as it flattens, then a little nip to know it's tight.
 
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