First Spark Plug Replacement

[JFP in PA]

Originally Posted by Frodo

Hopefully not a dumb question, but...If you use anti-seize, do you adjust the torque value when installing them? If so, by how much?

No adjustment is required, torque to specs. And there is no such thing as a dumb question................

[Frodo]

Originally Posted by JFP in PA

No adjustment is required, torque to specs. And there is no such thing as a dumb question................

Thank you JFP.

And Yes, there are some dumb questions, I've asked a few---just ask my kid, who (unfortunately) now knows more about working on cars than I do!

[Dave928]

i've used copper anti-seize on every spark plug for the last 30 years. 5 years of that as a dealer tech and 15 as an aircraft tech (not just spark plugs). i've never had a problem (electrical or mechanical) with a lubed plug. they only problems i've seen are from dry plugs. rusted in, pulled threads, you name it.

copper on spark plugs and lug bolts, nickel on O2 sensors. and a little lithium on those o-rings...

[Flavor 987S]

Don't use anti-seize. And this in one of the main reasons Porsche's spark plug change interval is time related and not miles related.....to prevent/minimize seized plugs.

[Frodo]

Originally Posted by Flavor 987S

Don't use anti-seize. And this in one of the main reasons Porsche's spark plug change interval is time related and not miles related.....to prevent/minimize seized plugs.

It's getting pretty obvious---doesn't look like there's ever going to be a consensus on this issue!

[JFP in PA]

Originally Posted by Flavor 987S

Don't use anti-seize. And this in one of the main reasons Porsche's spark plug change interval is time related and not miles related.....to prevent/minimize seized plugs.

Which I suppose is why the literature plug change intervals are listed as 30,000 miles:

Maintenance every 30,000 miles/48,000 km
Replace spark plugs
Air filter: Replace filter element
Change engine oil and oil filter

The service intervals apply under normal driving conditions. However, we strongly recommend that you check the air filter every 15,000 miles/24,000 km and if necessary, have it replaced. (Fuel filter replacement is recommended every 60,000 miles/96,000 km).

And we get cars in the shop regularly that are more than 10 years old, and with less than 20K miles on them..........

[Gilles]

Originally Posted by JFP in PA

Which I suppose is why the literature plug change intervals are listed as 30,000 miles:

And we get cars in the shop regularly that are more than 10 years old, and with less than 20K miles on them..........

Hello JFP,

My car is an '07 and just reached 50K, I did replaced the plugs about 15K ago, and yes, I did use a very light anti-seize coat :-)

I learned to use anti-seize compound long time ago after seeing damage on the aluminum heads... and so far I have never had an issue with it, however the copper anti-seize sounds fancy and I will have to get one of those too.. :-)

.

[Flavor 987S]

Originally Posted by JFP in PA

Which I suppose is why the literature plug change intervals are listed as 30,000 miles:

Maintenance every 30,000 miles/48,000 km
Replace spark plugs
Air filter: Replace filter element
Change engine oil and oil filter

The service intervals apply under normal driving conditions. However, we strongly recommend that you check the air filter every 15,000 miles/24,000 km and if necessary, have it replaced. (Fuel filter replacement is recommended every 60,000 miles/96,000 km).

And we get cars in the shop regularly that are more than 10 years old, and with less than 20K miles on them..........

Either your "literature" is out of date, or your mis-quoting it. For example, the spark plug interval on my 987S also states "or every 6 years". For the 993 Turbo it is every 3 years, no mention of mileage. If owners change plugs when they are suppose to (time sensitive), anti seize is not necessary, and why it is not Porsche recommended.

[Mark_T]

Does that fuel filter interval sound a little high to you? I was thinking more along the lines of every two years, which for me is about 20 -25,000 km.

[JFP in PA]

Originally Posted by Mark_T

Does that fuel filter interval sound a little high to you? I was thinking more along the lines of every two years, which for me is about 20 -25,000 km.

That is the factory recommendation for cars with accessible filters; in reality, the cars that had filters (not all years do) seem to do pretty well on the 60K cycle, unless something got into the tank with the gas. The reason Porsche went to the in-tank non serviceable filter was that they were not really having the filters clog very often; so they went with a cheaper, but non serviceable design unit, as did many other OEM's.

[Mrmaddbrad]

Okay people. Can we end this arguement?

Use anti-seize compound... If theres any arguement about it, you're just stupid.... I know no one that has ever had anything bad happen because they used it. However, i have seen people have terrible problems when they didn't use it....

If you don't use it, you risk damaging your Engine Head, and thats a lot more expensive than replacing a ruined spark plug.... I don't see how there is any arguement about this....

[Mark_T]

I was viewing it as more of a "spirited discussion" than an argument!

[JFP in PA]

Anti seize, which brand of tires, and what kind of oil are always the questions that keep the internet going...........along with is it necessary or not to compensate for using a crows foot extension on a torque wrench (my personal favorite)……..

[Gilles]

Originally Posted by JFP in PA

..........along with is it necessary or not to compensate for using a crows foot extension on a torque wrench (my personal favorite)……..

Ok, do you compensate or not..? ..ha

.

[JFP in PA]

Depends upon the angle of the crow's foot extension to the axis or the torque wrench.....

[JFP in PA]

It is not a "miss quote", it is the published recommended maintenance interval from Porsche for 1997 through 2004 M96 engines. No time interval is mentioned, only mileage. And as the original poster is driving a 2002, it is the correct factory service interval for the vehicle.

Turbo's are well known plug killers; they have always needed shorter run intervals.

And, yes, anti seize is necessary.............