Where can I buy an oil thermostat - M119.974

[Dymian82]

Hi, where can I buy an oil thermostat for M119.974?
Photo in the attachment

 

[gsxr]

That part is not sold separately, it comes with the complete filter housing... which is NLA. You'd have to buy a complete filter housing from a car with both M119 and oil cooler.

Is your oil thermostat damaged?

 

[Dymian82]

That part is not sold separately, it comes with the complete filter housing... which is NLA. You'd have to buy a complete filter housing from a car with both M119 and oil cooler.

Is your oil thermostat damaged?

my thermostat doesn't work.

 

[gsxr]

my thermostat doesn't work.

Is it stuck open, or stuck closed? The thermostat normally does not open until oil temp reaches 110°C:

https://freescruz.com/.priv/W124/w124CD1/Program/Engine/119/18-1110.pdf

 

[Dymian82]

Is it stuck open, or stuck closed? The thermostat normally does not open until oil temp reaches 110°C:

https://freescruz.com/.priv/W124/w124CD1/Program/Engine/119/18-1110.pdf

View attachment 191245

it is closed and when I heat it, it does not open.

 

[gsxr]

it is closed and when I heat it, it does not open.

This would be difficult to bench test, as you'd need to submerse it in liquid heated above 110°C.

Did you have problems with the engine running warm and the oil cooler thermostat not opening? Or were you just testing this for grins?

 

[Dymian82]

I heated the thermostat with an electric heat gun. I don't have a better way

 

[gsxr]

I'd re-install it and not worry about it, unless you find the oil cooler is "cold" on a hot day in summer when driving the car hard enough to get oil temp really hot.

 

[jhodg5ck]

Agreed, I'd carry an IR temp gauge to see if you are actually getting hot enough to warrant it's engagement and to check the temp of your oil. I only ever managed to get my oil HOT on the race track during endurance runs (2-3 hour stints)....

jono