I only removed the restriction, but maybe it needed to be there???

restriction = pressure

But I do have another issue that I think may be the high pressure bypass valve opening in the oil filter housing. I find at times the pressure drops. If I let off the accelerator pedal and the vehicle speed drops, at a certain point, the pressure jumps back up. I can then carefully apply the accelerator again and keep it a 3 bar.

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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

Just as a point of reference, my hot idle oil pressure is pretty much 1 bar exactly. This is on a euro N/A OM602 without an oil cooler, running at 95C, and using 5w-40 synthetic oil. The engine has been running this way for 10k miles since I've had it with no issues whatsoever.

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1991 W124 250D - 130k Miles

Update on the project? A lot of us were watching the thread with much interest...

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Regards,
Ian White

1995 E300 Diesel w124 OM606
2014 E550 w212 M278 biturbo

2001 BMW 740i E38 M62 (past)
1981 300SD w126 OM617 (past)

Monsieur LaFleur,

Just thought I'd remind everyone of how explicit this rebuild is for anyone rebuilding a 60x series.

additionally,

In hindsight, was it worth the $200 for a new oil pump?

What / how loose did the rods feel at the wrist pins before and after replacement?

What is one thing you would have done differently during the rebuild?

thank you for an excellent source of information!

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What is the status?

Hot oil pressure is still the same, possibly a little lower.

If I had to do it all over, I probably would have plastigauged the crank even though it had been reconditioned. I begin to wonder if he ground the bearing surfaces past spec.

__________________
Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

In hindsight, since the new oil pump did not change anything, It wasn't worth it.

As the the wristpins, I disassembled them years earlier, so I have no idea if they felt any different.

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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

Thanks for replying...you bumped this thread to the top of the diesel discussion and gave me a chance to read all glorious and "not so glorious" 12 pages of your build.

Great job, super documentation, and precise enthusiast work to boot.

Thanks again for the awesome inspiration.

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1982 300D-T (sold)
1988 300E (sold)
1994 E320 Wagon (sold)
1995 E320
1998 E300D-T
1999 E3204M Wagon
2001 E320
2005 E320 CDI