Spark Plug Questions

[Rmtt]

Originally Posted by Tommm

I bought a door actuator from them for my wife's Volvo. It went after a year. Dealer replaced it again, gave me the old part. I think I paid to ship it back, they sent me a credit, or credited my card.

It was a defective part. LL Bean ended their warranty program because of abuses like some are saying. If I bought something that turned out to be defective, yes give me my money back. If i bought something that i wore out, and took advantage of the "warranty" and the shop ends up closing like LL Bean almost did I would not sleep well. YSMV

I don't use them for wearable items, but for bigger ticket stuff I have. I bought OEM DISA actuators from them when I did my 3SI conversion as I felt like it would be good insurance for around $600 in parts.

I hope they are around for a long time!

[rennwerkes]

Just to update this thread, just received the spark plug socket from Amazon. Very nice from what I can see and magnetic. I've used Mercedes sockets with the spring holder and much prefer the magnetic ones. I guess to each his own. This one also has a universal joint built in. I'll probably be pulling the plugs within the next few days. Thanks again for all the kind advice.

[Moveitsmikey]

If you are tuned use the NGk colder step plug if stock use Bosch OEM. I ordered mine from fcpeuro.

[rennwerkes]

Just PPK so going to stick with Bosch.

[CH400EM]

Also wanted to update thread with my recent plug install. The CTA swivel socket from FCP was great! I used the Bosch stock plugs (non-bmw branded), checked gaps and all were within spec. All ordered from FCP. Hardest part of the install was taking all of the plastics/covers/brackets off to get to the plugs. Used compressed air to clean connections.

Drove ~400 miles straight a few days after install and it was all working great. I'm running the MHD stage 1+ tune.

[JimD]

I agree completely with the plastic removal being the worst part. Good time to replace the cabin air filter if yours is old. You have to remove the housing to get to the back plugs.

[bmw1racer]

All this talk about the spark plugs, but no mention of what the correct gap should be. I've seen numbers like 0.020", 0.022", 0.040", and 0.043"... Quite a disparity.

So what should the spark plug gap be, specifically for my N52 engine?

[WDE82]

Originally Posted by bmw1racer

All this talk about the spark plugs, but no mention of what the correct gap should be. I've seen numbers like 0.020", 0.022", 0.040", and 0.043"... Quite a disparity.

So what should the spark plug gap be, specifically for my N52 engine?

All the plugs come pre-gapped. Just open all of them an visually check they look about the same and put them in.

The NGK LZFR6AP11GS spec says it's a 0.043" gap.