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#1
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Om606 sitting without cylinder head
I got an om606 block without the head.. cylinders are rusty sat without coolant obviously. Think the motor is junk? If I stumble across another head I'd put it together and sell it if it runs for a grand
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Only diesels in this driveway. ![]() 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
#2
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How rusty are we talking? Is it crusty of light surface rust?
If it's light without pitting, then phosphoric acid will take care of the rust without any sort of abrasion necessary. Then again, I know nothing about building engines.
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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily 1992 Mercedes 300D 2.5 202,000 - Pure junk 2000 Mercedes E320 Black - 136,000 miles - Needs repair Don't forget to grease the screw and threads on the spring compressor. |
#3
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Depends how long it sat. If it was more than a couple days, it's probably junk.
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Current stable: 1995 E320 157K (Nancy) 1983 500SL 125K (SLoL) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) Gone and wanting to forget: 1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz] |
#4
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Yeah it was way more than a couple days. I'm gonna see if it rotates. I wonder how it would run with all that rust on the cylinders if it did? It's interesting I kind of want to experiment.
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Only diesels in this driveway. ![]() 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
#5
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I would not try turning it over if there is visible rust, the piston rings will clog with rust bits or could even break. Rust remover products are inexpensive. I'd follow up with a light hone, and then oil everything before attempting to turn the engine.
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1998 E300 turbodiesel America's Rights and Freedoms Are Not The Enemy! |
#6
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You also want to look for any sort of pitting in the walls where the rust is. If you remove the rust, turn the crank so you can see where the rings sat against the wall, again if it's pitted, the cylinders are done. If you do run it with pitted walls, it'll burn oil like crazy, ruin the rings, and possibly break the rings and wreck the cylinder worse!
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Current stable: 1995 E320 157K (Nancy) 1983 500SL 125K (SLoL) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) Gone and wanting to forget: 1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz] |
#7
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Quote:
I wonder what else could be damaged besides them cylinders? Possibly that bottom end of sitting too..
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Only diesels in this driveway. ![]() 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
#8
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If this was a mega rare engine I would go to the trouble of saving it (i.e. re-sleeving it). If it doesn't clean up easy then it's scrap metal. Unless you just want to play with it and practice engine rebuilding skills on a disposable block.
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The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech |
#9
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Mega rare is right!
My engine sat at a very reliable machine shop for 10 months for a rebuild with new sleeves and pistons and the parts could not be sourced.
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1999 E300 TD 1999 E300 TD, WVO conversion 2007 Jaguar XJ8 1993 190E 2.3, Limited Edition, 239,000 miles (sold) 1991 300 SL (sold) 1977 MGB 1969 TR6 1980 TR8 joturbe@comcast.net |
#10
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You can buy a running E300 for what a set of sleeves costs installed, so that’s a boat anchor. Take it apart and see what it would take to drop in a 3.5 crank!
Sixto 98 E320s sedan and wagon |
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