Dipstick position in sump.

[ringway]

A trivial question.

2002 320CDI (OM613).

I change my oil by sucking out through the dipstick hole with a Sealey pump.

After pumping out the oil, I wait half an hour for any remaining oil to run down the sump walls and then pump again. In this way, as well as sucking clean the oil filter plenum I think I remove 99% of the waste oil.

My drive way slopes very slightly an thus, so must the oil in the sump.

So my question is, what is the position of the dipstick in relation to the sump itself?

Edit: Same question for my Sprinter van. 2001 313CDI (OM611).

TIA.

Paul.

 

[iscaboy]

Forget the dip stick itself, it is the dip stick tube that counts, you cannot suck to a level below the lowest point of the dip stick tube.

Speaking personally all sucking oil through the dipstick should be banned...

1. It doesn't get anywhere near all the oil out.
2. It doesn't get ANY of the crap at the bottom of the sump out.
3. It doesn't "wash" anything out as the flow rate is too low.
4. It is slower than doing it properly.

Draining a sump properly gets a good flush / flow going, and by default when you drain from the bottom of a column of liquid you flush all the crap out FIRST.

Draining a sump properly gets ALL the oil out.

Draining a sump allows you to examine what you have drained out.

• Get a sump plug adapter kit, they are around a fiver.
• Get an cheap basin, they are 99p
• Run the engine well up to temp.
• Drain the sump and leave draining.
• Change the oil filter (this flushing down that oil circuit too)
• Refit the sump plug with a new copper washer (usually comes with the filter if you buy OEM) or anneal the old one on the gas ring.
• Fill with the requisite amount of new oil minus 500 ml
• Start and run the engine on tickover for a minute.
• Stop the engine, wait a minute, then dip and top up oil as required.
• Go through the old oil in the basin, check for sediment, check with a magnet too, etc etc
• Decant old oil into gallon can, dispose of old oil and 99p basin.

Edit, if you stick a suction tube down to the bottom of the sump you can get most of the oil, but reducing the flow even further, still leaving all the crap in the sump.

You may as well fit new oil and filter and then throw a handful of crap in the sump.

 

[Number_Cruncher]

I change my oil by sucking out through the dipstick hole with a Sealey pump.

Nothing wrong with that - the scare stories are just that, scare stories.

So my question is, what is the position of the dipstick in relation to the sump itself?

Edit: Same question for my Sprinter van. 2001 313CDI (OM611).

[/QUOTE

Position in what sense? Left / Right? Up / Down?, or Fore / Aft?

Following the line of the dipstick tube down towards the lower end of the crankcase should give you some idea.

In general, the dipstick tube will allow your suction tube to fall at the deepest part of the sump (there are a small number of MB models with a saddle in the sump, and these must be drained - from two drain plugs!), and as such will, generally, empty the sump more effectively than draining it.