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Old 09-04-2012, 10:36 PM   #81
Jamison4444
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Default Distribution block wont budge????

Hey guys my astra has 47K miles on it. I don't think the spark plugs have ever been changed. I removed the two screws and I'm trying to remove the spark plug distribution block. It is NOT budging. I've tried prying slightly with a socket extension while pulling from the top. No Luck. It's really hard to get any leverage. I even tried using some rope to help pull straight up. I'm guessing it really shouldn't be this hard. Do you guys have any tips for me? Thanks!

I should add that the engine is still pretty warm. I'm hoping that trying tomorrow when it's a little bit cooler might help things.

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Old 09-05-2012, 01:30 AM   #82
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2008 Astra XR
Default Re: Spark Plug Change for Astra

Found this on another site. But unable to find details on the actual tool:


There is a special Vx tool for removing the coil pack. If you look un the top of it, you will see two brass threaded inserts. Handles screw into these holes to allow easy removal of the coil pack.

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Old 09-05-2012, 09:03 PM   #83
bdshaffer
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Default Re: Spark Plug Change for Astra

KM-6009, here is the tool.

http://www.ebay.com/itm/KENT-MOORE-K...-/270600876352

I have changed my plugs twice and not needed one. Just pull up, not even very hard. Are you sure the electric plug is disconnected from the end?

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Old 09-06-2012, 01:40 AM   #84
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Default Re: Spark Plug Change for Astra

Quote:
Originally Posted by bdshaffer View Post
I have changed my plugs twice and not needed one. Just pull up, not even very hard. Are you sure the electric plug is disconnected from the end?
I too have had my coil assembly out of the car a half dozen times and it has never given me a problem before. The only things holding it in place are:

1) two silver Torx screws (easily visible from above)
2) the electrical connector (on the right near the oil cap, under the black plastic wiring shield)
3) friction between the rubber boots and the tops of the spark plugs (not visible)

If stuck, you can screw two long 8mm bolts into the threaded inserts visible in the top of the coil assembly and pull up on those. Or, if you are extremely careful, you can use a large screw driver to lever the assembly out by placing the tip underneath and using the inner edge of the valve cover as a fulcrum.


PS: Once out, a little silicone paste lubricant can be used to prevent the rubber boots from sticking to the plugs.

...
"That's a Hruck Bugbear, manufactured in Eastern Europe in the eighties and imported to the States. People mock it as a poor man's Yugo. I consider it the pinnacle of Cold War Balkan engineering."

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Old 01-29-2013, 11:55 AM   #85
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2008 Outlook XR
Default Re: Spark Plug Change for Astra

Replaced the plugs this past weekend at 40,037 km. Old plugs had corroded to a gap of 0.045 - 0.047".

Not sure if it's just psychological, but the Astra feels and sounds great.

I've attached photos of old and new plugs plus one of the coil pack out of the engine for reference.
Attached Images
File Type: jpg IMG_00000076.jpg (68.3 KB, 142 views)
File Type: jpg IMG_00000078.jpg (95.1 KB, 107 views)

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Old 08-10-2014, 03:27 PM   #86
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Default Re: Spark Plug Change for Astra

Thanks for the guide. Just did mine at 48,000km. Simplest spark plug job ever

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Old 01-08-2017, 09:48 PM   #87
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Default Re: Spark Plug Change for Astra

Nearly 4 years and 40,000km later time for spark plug change #2.

Second set seemed to be a little better than the first - less blackened from the looks of it and worst gap was .043.

...
2009 Saturn Astra XR, 95,000km
2008 Saturn Outlook XR, 260,000km

Past vehicles: 2000 Oldsmobile Alero, 220,000km - SOLD

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Old 01-08-2017, 10:05 PM   #88
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Default Re: Spark Plug Change for Astra

Had some file size trouble...here is a pic of the second round of spark plugs vs new:
Attached Images
File Type: jpg rsz_20170107_104804.jpg (203.0 KB, 42 views)

...
2009 Saturn Astra XR, 95,000km
2008 Saturn Outlook XR, 260,000km

Past vehicles: 2000 Oldsmobile Alero, 220,000km - SOLD

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Old 07-26-2017, 10:47 AM   #89
jrahhali
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Default Re: Spark Plug Change for Astra

Quote:
Originally Posted by cschmidt1956 View Post
...I used Autolite Iridium XP Spark Plugs number XP-5224. The plug gap for these as per the Owners manual is .035. The plugs were gapped at .045 out of the box so I had to gap each plug.
Can you explain what this gap thing means? I would like to replace my spark plugs, but unsure about this gap thing.

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Old 08-01-2017, 03:05 PM   #90
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Default Re: Spark Plug Change for Astra

Quote:
Originally Posted by jrahhali View Post
Can you explain what this gap thing means? I would like to replace my spark plugs, but unsure about this gap thing.
Pretty good backround:

https://www.youtube.com/watch?v=XFehqlFsUQA

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Old 06-02-2019, 09:25 PM   #91
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Default Re: Spark Plug Change for Astra

Replaced the spark plugs today. Car has 75k miles and plugs were previously replaced at 45k miles (so these have 30k miles).

-- There was a bit of oil in the black plastic valley we see just after removing the long plastic cover but before removing the coil pack. The coil pack looked fine (maybe a bit of oil inside each of the 4 tubes but outside looked new).

-- There was no oil pooled deep inside the 4 spark plug alu holes. They were very clean except a touch of burnt oil at the bottom around each plug.

-- All 4 spark plugs were:
------ oily on the ceramics.
-------oily on a few threads nearest the ceramics.
-------dry on threads closer to electrodes.
-------dry on electrode area (just a light dusting of light grey/brown color which seems normal from other cars).

Source of oil? The PCV membrane seems to be sticking and I think that is causing the valve cover gasket weeping AND the wet spark plug ceramics. Not 100% sure but I ordered an OEM valve cover from Daewoo in N Korea for $60 shipped (comes with gasket, PCV membrane, bolts). Will update thread with results.

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Old 10-12-2019, 07:32 PM   #92
Aster
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2008 Astra XR
Default Re: Spark Plug Change for Astra

I got an engine miss last weekend that felt like a plug misfire.

I removed the plugs and found one smelling slightly of gasoline. I checked the coil assembly by up-ending it, putting in the plugs and connecting them together with a ground wire. The smelly plug didn't fire.

I ordered a new ACDelco coil assembly for under $100 that should arrive in three days. I got four current-design NGK plugs (Laser Iridium, Part No. IZFR5G, Stock No. 5887. These have a thin, iridium center-electrode opposite platinum spot-facing on the side wire. Stock gap is 0.026. Cost was about $10 each.).

Then I read this post. I was embarrassed to realize the cause of the problem was that I had not read the Owner's manual that stated to change plugs at 25,000 mi. I had 64,000 mi and the gap for the plug that blew out the coil was 0.060"! I assumed that Saturn would have complied with Federal Law that requires 50,000 miles without parts replacement for emission-related parts. And I should have remembered what happens when you assume.

Just letting y'all know the price of stupidity.

On the plus side, the plug change is so quick and easy! ...and the coil assembly change will take a third the time. It's incredible to read that some dealers charge $1100 for coil replacement!

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Old 10-14-2019, 05:16 PM   #93
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Default Re: Spark Plug Change for Astra

Quote:
Originally Posted by Aster View Post
It's incredible to read that some dealers charge $1100 for coil replacement!
It's the American way!

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