Low pressure oil switches

[bootie3367]

Just been looking at my low low pressure switch at the back of the head, it's a black marked 0.15 to 0.45 bar.

What would the result be if I changed it for a blue one 0.15 to 0.35 bar?

Cheers

Jon

[itchyfeet]

Dont know much about diesels but the blue and black switches are opposite in their switching ie blue is normally closed black normally open

[kevtherev]

Just been looking at my low low pressure switch at the back of the head, it's a black marked 0.15 to 0.45 bar.

What would the result be if I changed it for a blue one 0.15 to 0.35 bar?

Cheers

Jon

the oil light would come on a fraction later.

[bootie3367]

Hmmm, reading up on the Wiki is even more confusing as it states the black is 1.4 bar whereas mine is definitely not.

Bit of a moot point with the housing thread stripped for the grey one anyway so not going anywhere at the moment.

[richlaz]

Have a look at my thread here... https://club8090.co.uk/forum/viewtopic.php?f=39&t=119142" onclick="window.open(this.href);return false;

I replaced mine a couple of days ago. My original low pressure switch was black (and same rating as yours), and I replaced with a blue - works perfectly. The Haynes manual states that it should be 0.3bar +/- 0.15

New "replacement" black ones are completely different rating (and normally open), while low pressure switches are normally closed.

[bootie3367]

Right,thanks,that's put my mind at rest. Just got get a new mounting for the oil filter now!

Cheers
Jon