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#1
04-27-2010, 08:39 PM
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Removing intake crossover on 603...
I just removed the crossover pipe and cleaned the gunk out - it was packed with soot and oil. While cleaning the pipes I tried not to get any debris to drop down to the turbo area below - I used the vacuum suction to pull the junk out as I was scraping it out but I still think some small stuff had falled down into the pipe below...
I'm wonering if I can start the engine without the crossover pipe in place - hopeing to blow out whatever is down in there now so it doesn't make its way to the intake.... Ultimate goal is to remove the intake manifold as well - wondering if I could even start the engine without the intake manifold in place?! It would seem ok, but wanted to check....
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1987 Mercedes 300SDL; SOLD 1985 Mercedes 300D; SOLD  2006 Honda Pilot - wife's ride; 122K; 1995 Toyota Land Cruiser - 3X locked; 182K Last edited by MercFan; 04-27-2010 at 09:17 PM. 
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#2
04-27-2010, 10:04 PM
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No,You Can't!
Because you're gonna go ahead and pull the Intake
(Which is just as full of all that same Goo/Gunk) and Clean it Too! [If you've got the Crossover Completely OFF,starting the engine will effectively "Blow Out" whatever little trash fell into the Turbo Output from your little scraping expedition.You might block any debris from being "Cast Across" the Crossover Void into the intakes. ] That OM603 will start with no turbo or intake. Howeveah ,remember it'll also suck in ANYTHING in the vicinity of the Intakes!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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'84 300SD sold 124.128
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#3
04-27-2010, 11:12 PM
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Quote:
1) Start the engine now, with only the crossover pipe removed - which hopefully will blow out whatever little particles fell into the turbo (guess I'll need to rev it up to get the turbo spinning to kick all that out) - all while protecting the intake across the way to ensure that nothing is blown into it... OR 2) Go ahead and remove the intake manifold as well, being careful to scrape off whatever remains of the intake gasket there are or whatever else... make sure nothing is near the intake openings and THEN start the engine...
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1987 Mercedes 300SDL; SOLD 1985 Mercedes 300D; SOLD 2006 Honda Pilot - wife's ride; 122K; 1995 Toyota Land Cruiser - 3X locked; 182K Last edited by MercFan; 04-27-2010 at 11:16 PM. Reason: making sure its clear
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#4
04-29-2010, 10:14 PM
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I have considered next time I pull the cross pipe and intake, taking both pieces to the parts store and having them hot tanked.
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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12 1982 380SL 1978 450 SEL 6.9 euro restoration at 63% and climbing 1987 300 D 2005 CDI European Delivery 2006 CDI Handed down to daughter 2007 GL CDI. Wifes 
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#5
04-29-2010, 10:47 PM
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Option # 1
Mercfan,
I like #1 ,Because the Individual Intakes have the protection of the I.M. (If y'all went with option #2 ALL of the E.C.[Engine Compartment] would have to have had the O.C.D. Surgical Clean first.] Wodnek, YES! (Make sure whatever chemicals they've got in the Tank don't DISSOLVE the I.M. and Crossover) [Clean and Shiny, not "Holy"] All that Black Tarry Goo gets into the ALDA system Too.
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'84 300SD sold 124.128
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