Hi Jonathan, have tested the sender. Found difficult to do in situ so took out. Has four pins. Looking top down in photo, the two bottom pins have continuity, but not sure if thats the correct result?
Tested signal wire of gauge with ignition on and when earthed needle goes to highest point, so seems good.
That gauge behaviour is very odd, and certainly abnormal.
It would be good to test both gauge and sensor before you embark on costly replacements.
Is your sensor a Caerbont PTR5000-4N-12SPR? If so, I could lend you my old one (replaced when I went mechanical), together with my old gauge (like yours but with silver dial). Note that I'm abroad at the moment, but could probably ask my neighbour to dig out the bits and post them to you.
Hi JV thanks for reply. Tested gauge, as in connected signal wire to earth with ignition on and it shoots from lowest reading to highest. Guessnthat means its doing what it should?
Working on test for sender with Jonathan and any pointers would be appreciated. Thanks for offer to borrow the sender, where you based? Cheers
Thanks Jonathan, great bit of info. So my gauge looks to be ok and pin 1 and 2 have continuity on the sender when connected.
Have seen videos of testing diaphram with air and also in water. Could also give that a go possibly. There might be a weep on the sump at weld, just cleaned and will look later. Guess that shouldn't interfere with preasure, if very slight?
If sump is leaking will have to bite the bullet for a new one. Or used good condition possibly. It's a bugger!
Hi Jonathan, have tested the sender. Found difficult to do in situ so took out. Has four pins. Looking top down in photo, the two bottom pins have continuity, but not sure if thats the correct result?
Tested signal wire of gauge with ignition on and when earthed needle goes to highest point, so seems good.
I don't know how the four pin sensor works. I'll have a look in the archives. Can you get the wiring colours from the connector?
This diagram is labelled as being for the Stack dash but I'd guess that it's what you've got.
And do you have a separate sender/switch for an a low oil pressure warning light on the dash?
Jonathan
Hi Chris,
That gauge behaviour is very odd, and certainly abnormal.
It would be good to test both gauge and sensor before you embark on costly replacements.
Is your sensor a Caerbont PTR5000-4N-12SPR? If so, I could lend you my old one (replaced when I went mechanical), together with my old gauge (like yours but with silver dial). Note that I'm abroad at the moment, but could probably ask my neighbour to dig out the bits and post them to you.
JV
Hi Jonathan, there is an additional light it's thisndash setup:
Here is picture of connector:
Green, black and orange/green
Hi JV thanks for reply. Tested gauge, as in connected signal wire to earth with ignition on and it shoots from lowest reading to highest. Guessnthat means its doing what it should?
Working on test for sender with Jonathan and any pointers would be appreciated. Thanks for offer to borrow the sender, where you based? Cheers
Thanks
https://www.caigauge.com/documents//pdfs/pressure-transducers-383.pdf
(That's PTTR rather than PTR but it makes sense.)
Jonathan
Thanks Jonathan, great bit of info. So my gauge looks to be ok and pin 1 and 2 have continuity on the sender when connected.
Have seen videos of testing diaphram with air and also in water. Could also give that a go possibly. There might be a weep on the sump at weld, just cleaned and will look later. Guess that shouldn't interfere with preasure, if very slight?
If sump is leaking will have to bite the bullet for a new one. Or used good condition possibly. It's a bugger!
Thanks
Also this is the sender I took out:
#16 and #19: That looks like a Variohm Eurosensor rather than a Caerbont, so I'm afraid my sensor wouldn't fit your connector.
A full sweep on earthing confirms the gauge is working ok.
JV
Thanks JV