LM 840 Oilfilter always loose

[BOLT]

Hello,
every 30 Hours i have to tighten the oilfilter, it gets loose and oils drips out. We changed the x-ring seals a few times, then it takes a little bit longer until it gets loose.
Does anyone have the same problem?
Is there a newer, better oil filter system which almost fits the 840 and works better?
greetings from Austria,
Ulrich

[BOLT]

Winter has come and the filter drops again and again... Please help!

[fretchi]

Is it the transmission or the engine oil filter?

For the transmission, it should be possible to replace the filter housing to the newer style spin-on filter.

[Bengt Erik Eriksson]

Hello! Hello and welcome.
sounds strange.
A picture or twoo would help i think..

[BOLT]

Hello, it's the engine. Tomorrow I try to make pictures.

[Bengt Erik Eriksson]

Hi i just thought i share som pictures from the parts catalouge.
I guess you got the wrong filter and the threads is not correct. Maybe the threads is also worn or damaged.

4785974 is the current numer for filter to this engine

Neither pos 23 or 24 is available from volvo.

[torbjorn_forsman]

A common reason for a such oil filter to get loose is if there are double gaskets for it. Maybe the gasket from an old filter got stuck at the filter holder.

[martin wheelnut]

Hi.
If you can’t find another solution on the problem maybe you can put a hose clamp around the filter and then attach a metal wire between the hose clamp and something on the engine or frame. Then tighten the wire in the right direction and that should hopefully prevent the filter to come loose.
/ Martin

[Simnil]

Sounds really strange. Usually the other way around and being hard to remove.

However. For cars you just hand tighten spin on filters but when I worked at a Volvo Truck work shop I was told to torque truck engine filters a bit more using a filter wrench. So clean surfaces, oiled seal and torque a bit with a wrench.

Oh, and every time you take a spin on filter off you should check that the threaded part, #24 in the pic above, is threaded all the way in. Sometimes they back out a bit with the filter.