oil filter housing / ports

[incisor]

oh wise ones

which hole is the oil out to the filter and which one is oil returning to the engine?

[schuy1]

The center hole, ie the 1 that delivers oil to the center of the filter element is the outlet from the pump. The return is the gallery that the oil press sender is located on, Does that make sense and a clear enough picture? If not I will grab some pics in the morning for you.
Cheers Scott

[incisor]

thank you...

i fitted a 200tdi oil filter adaptor to replace the std canister setup on my early 2.25 engine.

goes really well

makes it so easy to do an oil change

but

i have a gotcha

after 20mins driving my oil pressure gauge shows the oil pressure slowly decending to 20lb from the usual 55lb (not an electric gauge it is the real deal)

so i take the new one off and put the canister type back on and it is as it was before, sitting at 55lb

so, it has me in what the problem could be with the 200tdi unit...

always got to be something :p

[schuy1]

Hmm that seems weird! It would appear as if as the oil warms up it is bypassing somewhere or getting blocked from the sender! Not really knowing a 200TDi its hard to say.
Some1 may know why.
Cheers Scott

[harry]

sounds like you may have a vernatherm in yours, but I think yours is the same as the one I fitted to mine and I have not got a vernatherm in mine, nor have I got an oil pressure gauge!
some things take time to do!!!!

[incisor]

sounds like you may have a vernatherm in yours, but I think yours is the same as the one I fitted to mine and I have not got a vernatherm in mine, nor have I got an oil pressure gauge!
some things take time to do!!!!

i suggest you get one :P

[harry]

in time dave,
I have one but it needs to be fitted and I can't find anyone to do that just yet........

[S3ute]

Hello from Brisbane.

I can't give a solid technical comment on your TDI200 adaptor - mine is the LR part sourced from a 2.5 litre motor in Zimbabwe and I have always been led to believe they are a direct swap over.

However, I have read a few threads from the UK and USA sites that warn of possible problems with either the later adaptor, alternatives like the Rocky Mountain unit or the new filters themselves- basically it seems possible to put them on incorrectly and/or have a filter type with a one way flow valve that ends up seizing the motor.

Here are a few examples, taken at random from a couple of sites:

spin on oil filter adapter warning! (http://forum.landrovernet.com/showthread.php/136269-spin-on-oil-filter-adapter-warning)!


Spin-on oil filter (http://forum.landrovernet.com/showthread.php/66037-Spin-on-oil-filter)

(http://forum.landrovernet.com/showthread.php/66037-Spin-on-oil-filter)
Rocky Mountain spin on oil filter adapter (http://forums.roversnorth.com/showthread.php?8024-Rocky-Mountain-spin-on-oil-filter-adapter)

A couple of them are referring to non-LR adaptors, but the sense of warning is still there.

Not sure if this really clarifies things or just adds to the confusion - but you might want to check with British Off Road or whoever is selling the TDI200 unit off wrecks to fit the 2.25l motors to see if there is a right or wrong way to fit them. Or if the filter or pressure bypass mechanism in the unit is the issue.

Cheers

[incisor]

mines fine till the engine oil gets hot...

then it drops down to 20psi

old one back on until i get a chance to look into it more.

[S3ute]

Hello again.

Keen to know what you eventually find out on this.

Cheers,

[harry]

mines fine till the engine oil gets hot...

then it drops down to 20psi

old one back on until i get a chance to look into it more.


how did you go with this inc?
mine did this same thing yesterday, first time since fitting the adaptor,
all at 45 plus until the engine got hot, and yes, dropped to 20... 34 deg day and hotter in parts, but hasn't done that before, so the heat yesterday has triggered a vernatherm or something.

[incisor]

i took mine off...

it has something to do with having an oil cooler in the circuit so oil leaking past something in the adaptor can dissipate into that flow imho

i needed the vehicle so took it off till i needed something to torment me again...

[harry]

I have had a look at a couple of my manuals and see that there is a vernatherm which would open to port oil to an oil cooler of in the circuit.
I don't understand why the oil pressure wouldn't also drop on the original engine these adapters came off, if ported to an oil cooler circuit, but I am working on it....
the 200 tdi and 300 tdi manuals do not give the temp at which the vernatherm opens, but I did notice that the oil pressure for a 200 tdi is 25 to 55 , so 20 for our engines probably isn't a big problem.
I think from memory an old holden was about 15 min when hot.
I will pull the vernatherm off and see what we can do to prevent it opening, and also look into fitting an oil cooler, although I don't believe the engine needs one.
there must have been thousands of these engines pumped into out hot aussie world, so I dont think I need to change anything.

[harry]

ok, I think I have sorted this problem out.
I have the modern oil filter adapter on the bench at work and have been through the porting of the system, if the adaptor was ported through an oil cooler there would be no problem and also if the engine oil doesn't get very hot the system will operate as normal.
but when the oil gets hot the vernatherm in the adaptor opens to port oil through the oil cooler,
in my case I do not have an oil cooler and these ports are blanked.
so when the vernatherm opens, it also restricts oil flow back to crankcase, trying to send all the oil to the cooler.
so when we do not have a cooler the oil flow is restricted and this causes the oil pressure relief valve in the engine to open, dropping the pressure to 20 psi.


the cure is to either fit an oil cooler or remove the vernatherm , washer and spring from the modern adaptor.
I hope this solves this problem for others.

[incisor]

the cure is to either fit an oil cooler or remove the vernatherm , washer and spring from the modern adaptor.
I hope this solves this problem for others.

that is where i thought it would end up..

thanks harry, appreciate the effort...

[S3ute]

Hello again.

Thanks for the useful advice.

As mentioned in an earlier post, I got my adapter from a wreck with a 2.5 litre motor in Africa - these were the same basic block as the 2.25 litre motor and had the spin on filter but no oil cooler. All reports were that they worked just fine, and much cheaper than the Rocky Mountain units or new part from Land Rover, which seems to be the case as long as they are fitted correctly.

I had heard that the same adapter unit from the later motors was also OK fitwise, but a few posts here and there were suggesting the sorts of problems that you have been encountering. Nice to know the underlying cause of the problems and scope for economic resolution.

Cheers,