Xoutpost.com - Lost Compression today !

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Quote:

Originally Posted by Crowz (Post 1125846)

Well cheap fix at least.

Yes !
Going to send the head out to get cleaned up on monday. Hopefully i can put her back together next weekend

- Change all valve seals, use BMW OEM seals only.
- You can buy these seals and give them to the machine shop.
- Valve brand: in the Volvo forum there is a debate of OEM Valve ($80/each for the Volvo, idk BMW cost) vs Osvat vs TRW etc.
- Some people think the cause of burned valve is from leaky valve seals ---> oil caking on the stem ---> valves cannot close properly.

- Does anyone know the price for the BMW valve?

- From now on, use only Octane 91 gas, which should reduce the risk of burned valves.
- Clean the injectors too.

So the never ending debate. How to clean or do i clean the carbon off the tops of my pistons?

Quote:

Originally Posted by cn90 (Post 1125854)

Thanks! 91 only plus in my Bimmers. There are 4 in the house and its something i stress on. Its amazing when i pull up to a gas station and see someone with a brand new BMW pushing the 87 button. I just shake my head and laugh, but chances are they are returning it in 4 years anyway, and don't understand the fuel milage is decreased so much! lol.
"penny wise, pound foolish" i was taught.
Thanks all for all your help!!

Quote:

Originally Posted by dadysev (Post 1125855)

So the never ending debate. How to clean or do i clean the carbon off the tops of my pistons?

walnut media blast?

There is a stronger version of the gm injector/head cleaner than what that guy was using in that video I linked. Unfortunately I don't have the part # for it. The stuff is very powerful and will flat out take the carbon off.

I will see if I can find the part # but I doubt you would have time to get it and use it in the time frame your going for.

Quote:

Originally Posted by Crowz (Post 1125859)

Thanks unfortunately i finished (wasted) the gm stuff.I may go grab some more

Much better than the seat!

Sent from my iPhone using Tapatalk Pro

- This guy used Berryman and it looks very nice.

- Once done with Berryman, add some cheap oil (7 qts or so), run the engine for a few minutes, then change the oil using synthetic. This will get rid of any Berryman that got into the crank case.

https://www.youtube.com/watch?v=bRiZOTTel34

Quote:

Originally Posted by cn90 (Post 1125866)

This guy wasn't putting the Berrymans into the engine. Was that what you were suggesting?