Porsche Cayman S 987 How to replace your spark plugs & coil packs, part 4 of 4 changing spark plugs
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- เผยแพร่เมื่อ 16 ก.ย. 2024
- Porsche Cayman S Boxster S 987.2 3.4 How to change the spark plugs and coil packs.
In this 4 part video, I demonstrate how to change the spark plugs and coil packs on this Porsche Cayman S 2009 - 2012 model year. This is the 3.4 flat six engine. I've broken this down into 4 videos as this job is quite long. I would schedule yourself at least 2 hours to complete from start to finish.
Part 1 - Removing the wheel arch liners. firstly you will need to jack the rear of the car up and remove the rear wheels. You could do this job one side at a time. Removing the wheel arch liners is straight forward. This gives you access to the heat shields which cover the coil packs.
Part 2 - Removing the heat shields, the left hand side is straight forward, you need an E10 socket to remove two bolts. The right hand side is slightly more tricky as one of the bolts is located right behind the catalytic converter. An E10 spanner may be easier to use for this one as there's not enough room for a socket
Part 3 - Removing the coil packs, A T30 socket is required. The most difficult part here is removing the plug connector. I find the easiest way is to push the connector on, press the tab in, then pull the connector off. I would avoid trying to use a screwdriver etc. as it's likely to brake. The coil packs pull out by hand and no special tool is required.
Part 4 - Replacing the spark plugs, the spark plug size is 5/8 or 16mm . They come out fairly easily, you will need an assortment of extensions and if you have some with a wobble or swivel end, it makes life a bit easier as these give you several degrees of angle for those awkward spots.
Before fitting the new plugs, check the gaps look even with the others, the plugs come from the factory with the gap preset. There's no harm in checking the gap but if I was to find the gaps well out, I would send the plug back and get another. They shouldn't need adjusting.
Next is tightening, If you are unsure how tight to do them, use a torque wrench. The torque setting will be between 20 - 30Nm depending on the plugs you are using, this can vary. If tightening by hand, follow the manufactures recommendation, normally screw in by hand first and then tighten between 1/4 - 1/2 a turn
Hope these step by step videos help you.
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Thanks for the content. Job completed plus camshaft position sensors on both sides. Amazing how you could get the job done AND get the lighting/ camera shots.
This series is a marvelous resource, well put together and thought out. thank you vm. I can't believe how crazy it is to get to the spark plugs! Wow. I'll have to do this soon. pretty sure my plugs are original since car has 37k miles. Your pro tip about the HD plugs is also helpful. I'll have to look for those.
Get lots of extensions of different lengths, wobble ends and or UV jointed adapters to get to front plugs.
Great series of videos. Thank you for taking the time to share this with us.
On Saturday, I finally made some time to change the spark plugs and coils on my base 987.2C. The car had been sitting for almost a week. Much to my horror, #1 would barely undo and wouldn't do back up, as I was going to try and work it back and forth with some penetrant.
Did a quick google search, but couldn't find any reference to whether it should be done on a cold motor or warm.
So, I decided to run the motor for 1 minute as the aluminium would warm up quickly around the plug and hopefully expand, relieving the tension on the plug thread.
Luckily for me this worked perfectly and the right side plugs then came out beautifully. Be warned though, the exhaust headers will be hot!
I have a narrow garage, so I had to move the car over to do the passenger side (left side here in Australia). So the motor was run again for less than a minute before removing the left bank of plugs.
I hope this helps, as #1 just did not want to move and felt like I was about to pull the thread. Talk about stressful...
Hey Roland, thanks for the comments, bet that was a nightmare, I found my number 3 spark plug was really tight, tighter that expected but managed to work it in and out to work it loose. Warming up the engine before starting definitely helps tho. Great to hear you got it sorted 👍🏼 great tips if anyone else struggles with some.
Don't you need dialectic grease for each of those spark plugs?
how was NGK iridium spark plug? since 987 is my very first porsche, I am not sure whether to use a single tip (NGK) and porsche 4 tips spark plugs? I don't want to do this job over and over time, I prefer long life NGK iridium plugs.
Hey, I used the Denso iridium power plugs which have been great, they need replacing a lot earlier than the long life tough ones but that’s not an issue as it’s not used daily. If you’re using it daily or just want to avoid doing the job again next year etc. I’d go for the long life iridium plugs, might be also worth considering changing the coil packs whilst you’re at it.