Its not a freaken U boat!

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

I'll bet you haven't checked your valve clearances lately. An old motor with tight valves could probably leak enough water through the valves to keep it from hydrolocking and breaking stuff, especially if you weren't turning high RPMs when you gave the "DIVE" order..

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'82 300SD 351k

I often mist water into the turbo at 2500 RPM to decarbonize the engine, Ill bet the intake did its job and kept most of the water out.

When decarbonizing there will be tons of black smoke out of the exhaust. but the engine runs much better.

USE AT OWN RISK.

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1984 Euro 300SDC, (4spd standard)
1986 Toyota Landcruiser Diesel HJ60 5spd X2

Gone but not forgotten (some sold, some stripped)
1983 300 SD, 1985 300 SD, 1983 240D, 1986 300 SDL, 1985 300 SDL, 1983 300 D, 1984 300 D, 1985 300SD, 1987 300 SDL, 1983 300 SD, 1985 300 TD Euro, 1983 380SEC, 1990 300 D, 1987 300D, 1982 300D, 1982 300D, 1994 E420, 1987 300 TD, 1987 300 D, 1984 300 D

Somehow that just doesn't sound like a good idea...at all. Enough moisture goes through the engine when its raining real hard out to take care of that on its own....

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)