OK so I have decided to swallow my pride and ask for some help. I tried doing the Seafoam treatment but have no idea how to get the PCV tube off. I squeezed and twisted and pulled every which way and still couldn't get it off. Is there some trick i'm not doing right? Any suggestions would be greately appreciated.

 

I had no problem on my Cooper s removing it by pressing on both sides and pulling straight. You should hear both sides click when pressed. My Cooper was another story as I was only able to press on one side with my fingers so only one side clicked. The valve cover was is the way. I used a small screw drive and carefully applied pressure to the clip.

 

I just squeezed the plastic collar on the pcv tube and pulled straight back towards the firewall, came off pretty easily.

 

Mine was very stubborn too. Squeeze opposite sides and if it doesn't come off with a straight tug, try wiggling it a bit. It will come off!

 

Mine was hard too. I used the screwdriver trick to gently pry it loose.

 

just to let you guys know, after seafoaming your car you need to replace your spark plugs....

 

Why?

 

Hmmmmmm.......
I never have replaced my plugs after "SeaFoam-ing" and have never had any issues.


Jim

 

plugs getting fouled?

 

i did not know this until my teacher told me. basically the carbon/whatever's built up in the engine is being broken down and passing through the engine itself then out the exhaust. all the junk passes through the spark plugs and then the plugs become fouled (sorry i dont remember exactly how my teacher explaing to me)

 

Why not just check the plugs? If fouled -- change -- if not -- do not change?

 

I have seafoamed my R56 MCS at least 5 times and I have never had fouled plugs once.

 

i'm guessing that if your AFR is good, then the plugs should clean themselves off after a certain amount of cycles. the only way to be sure is to pull the plug when the engine has cooled after you've seafoamed. then pull it again after X amount of miles, let's say 50 miles or something like that to compare.

 

It's easier to remove it when the engine is warm/hot so let your car idle a bit. The heat will soften & expand the tube so removing will take less effort.

 

I have done six Seafoam treatments and no plug issues. I only changed them in preparation for my RMW tune. The old plugs looked fine.

 

what is a seafoam treatment?

 

Seafoam

https://www.northamericanmotoring.com...t-r55-r56.html

I did it, seems to help.

 

Funny, I just did it to my car this weekend too. It definitely helps out. I didn't change the spark plugs though.

I had a little difficulty taking the PCV tube off. But you pinch the ends of the PCV tube and pull towards the rear (the firewall). You might have to wiggle a little as well. It was easy one time, and the second time I struggled a little.

Also, how much seafoam are you supposed to use? I used half the container.

 

You can use the whole can for 1 seafoam treatment
1/3 to pcv valve, 1/3 to engine crank case and the rest to gas tank.
You will probably experience a CEL but that's normal. It should goes a away in a few days.

 

I have heard the 1/3 of the can all around method before but (you might have seen this coming) how do you add it to the crank case?

 

I'm also interested how to add it to the crank case.

The guy at the store also mentioned to me to use it in the gas tank. He recommended the tank to be as close to empty as possible for the best results.

 

Isn't the crankcase method just adding it to the oil? You'd have to do an oil change a few hundred miles after if you did so.

 

Based on recommendations elsewhere in this forum, I did my first SeaFoam treatment 3 times at 23K before an oil change. The key seams to be adding each 5oz treatment as slowly as possible, at least 5min. This allows for even distribution over all cylinders. Also, let it stand and soak at least 1hr before start up. Used an 8oz plastic baby bottle with the one hole nipple to apply and squeezing hard it took ~8min to empty. Result? Glass smooth idle, quick start up and no stumble on launch. Just got the RMW tune and the ~4000rpm hesitation that others have reported seems to be gone as well. Plan to SeaFoam before every 6K oil change from now on unless the rough idle/launch stumble indicates otherwise. Doubt the stuff would have been around for 68yrs if it didn't work.

PS: If you think getting the PCV tube off on an OEM airbox is fun, you oughta try it with an m7 super AGS!

 

In the UK I have often used a product called 10K Boost and this used to be sprayed into the throttle body on my old Petrol Injection car.

It needs to be sprayed into the air inlet so is this PCV the same place for me to use?

Thanks to anyone who may be able to help. My 2006 R56 MCS has 25k on the clock and I am firm believer of maintenance like this and additives in the petrol to clean out the fuel system.

 

Did this yesterday and plan to do it again today..must say though the cloud of smoke from the tailpipes was ri-donkulous...definitely needed it. Its running a bit smoother thats why i plan on doing this again today, hoping it'll get better.