Carbon Deposit Removal?

This may seem like a stupid question, but...

Is there *ANY* way to remove intake valve deposits other than a valve job (or the "BMW" method of blasting crushed walnut shells into the ports)? Does ANY fuel additive help to remove deposits that have already accumulated, not just help avoid additional deposits?

What about the type of fuel injection cleansing systems that hook up directly to the CIS system?

Does anyone have any experience with Lubro-Moly "Ventil Sauber", Chevron "Techron", etc.?

Looking forward to any and all input!

[joel]

two bottles of techron, and pedal to the medal.

[Aaron]

Yep, I'd run an additve (actually, I prefer Red Line Fuel System Cleaner or Lubro Moly Ventil Sauber) and run it like hell flat out. Burns up the deposits and provides for some entertainment at the same time.

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Rgds,
Aaron Greenberg
MB technician
Precision Motorcars, Cincinnati, Ohio
'67 250SE Cabriolet
'77 450SL
'80 300SD
'85 380SE
'86 420SEL
'89 420SEL
'93 300E 2.8
'74 Jensen Interceptor Mk.III
'81 DeLorean DMC12
'84 BMW 745i Turbo

[Michael]

Just went thru this...Ventil Sauber seems okay, but try and find a BG distributor...their "44K" is the best thing on the market; Techron didn't even touch my carbon, nor did the RedLine stuff.

[rbauman]

You can find BG 44 product info at www.bgprod.com Our MB dealership in Boise, ID stocks it.

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RogerStock
1983 300CD 246k sold
1998 C230 16k