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Old 04-17-2010, 10:01 AM   #1
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Smartest way to do plugs, o-rings, tubes and coils?

I'd like to replace the plugs on my car soon, and it seems like that would also be the best time to replace the o-rings and any cracked spark plug tubes and coil packs.

I'd like to minimize the amount of down time on the car waiting for shipments from Sunset, and at the same time not waste a bunch of money on parts I don't need.

I was thinking I'd order all 6 plugs and 6 pairs of o-rings, but only 3 tubes and 3 coil packs. Then do one side of the car, if I end up using all the tubes and coil packs, then order more before starting on the other. Is that a good plan? If I end up with left over parts, can I return them to my local dealer?


'01 Boxster S, 51k miles
'05 Mazda 6 Grand Touring Wagon
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Old 04-17-2010, 03:31 PM   #2
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Well what you do is your choice, but I just did the 6 plugs in my car and inspected the coil packs. Did nothing with the tubes. They was no oil around them and plugs came out fine. I had two coil packs showing some plastic delamination, but the car runs fine. If I start to get mis-fires, I'll change all the coil packs at once.... and put the old ones on E-bay.
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Old 04-17-2010, 05:13 PM   #3
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skip the tubes, along the lines that if they're not leaking - leave them alone. If you change them (not necessary - just swapping the 'o'rings will do), you'll need to pull the plugs in a few hundred miles to make sure you got them seated properly and that they're not leaking, which is another reason to leave them alone if they're OK.

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Old 04-18-2010, 06:10 AM   #4
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I have just completed replacing the plugs, tubes and oil rings along with oil and brakes/rotors.

I thought I had an oil leak from either IMS or cam cover but after I had it up on stands I found it was a couple of oil rings leaking.

My opinion as the car was already up on stands and I felt the need to replace anything I could at the time so I replaced all plugs, tubes and oil rings along with oil / filter and brakes / rotors. While I had it up and doing all I also painted the rotors.

The tubes were a bit difficult but found a tool that is used to pull old brake springs that worked great, I did try Pedro's boat plug but that only worked on one tube.

I am not at all a mechanic but with viewing posts here along with pedro's website and of course my "Spiritual" assistance from Randall Neighbour I was able to complete all with no issues and car runs great and idle is so smooth!

Will post my experience and photos once back to the states, and as always as other available to assist in any way I can.


I would recommend to replace all you can if you have the time and money while it is on the stands.

Currently in Bali on a get away so can not post photos, but very proud of everything and the car no longer has that little drip and runs great.

Also it is a 2000 base and did need break pads and spark plugs, but it seems once you start you can not stop;-)

Just only advice is to plan your job then order all required parts and work your plan.

Kudos to this forum, Pedrosgargage.com and Randal.
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Old 04-18-2010, 11:04 AM   #5
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Hmm, well if it's not likely I need to do o-rings, then I guess just starting with the plugs will be fine.


'01 Boxster S, 51k miles
'05 Mazda 6 Grand Touring Wagon
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