nbbranwell Posted March 4 Report Share Posted March 4 Hi all, What is this part, and should I carry a spare? Link to comment Share on other sites More sharing options...
Tony Brooks Posted March 4 Report Share Posted March 4 Oil pressure sender for an oil pressure gauge. Oil pressure rarely fails so I would not carry a spare. Note - probably needs matching with the gauge. Link to comment Share on other sites More sharing options...
nbbranwell Posted March 4 Author Report Share Posted March 4 Thanks Tony! Now I just have to find the gauge! Link to comment Share on other sites More sharing options...
Tony Brooks Posted March 4 Report Share Posted March 4 17 minutes ago, nbbranwell said: Thanks Tony! Now I just have to find the gauge! If you have an oil pressure warning light, then I don't think that you really need an oil pressure gauge, and there is no guarantee that the sender is working as it should. You should see its resistance alter as the engine starts up if you want to test it, but even that is not 100% definitive. If you decide to buy a gauge then be aware that there are two resistant standards US and European and if you mix senders and gauges from the two the gauge reading is likely to be roughly half or double what it should be. Link to comment Share on other sites More sharing options...
nbbranwell Posted March 4 Author Report Share Posted March 4 Thanks again Tony Link to comment Share on other sites More sharing options...
Eeyore Posted March 4 Report Share Posted March 4 (edited) 9 hours ago, nbbranwell said: Hi all, What is this part, and should I carry a spare? Curious that it has a pipe (usually for a gauge) on a fitting behind the sender. Probably worth following the pipe and wire to see where they end up. Might be an oil temperature gauge sender? Edited March 4 by Eeyore Link to comment Share on other sites More sharing options...
Tracy D'arth Posted March 4 Report Share Posted March 4 The connection is rubbish. Link to comment Share on other sites More sharing options...
MtB Posted March 4 Report Share Posted March 4 Looks more like a pressure switch for the warning light to me than a thermistor, which a temperature gauge sender will be. Link to comment Share on other sites More sharing options...
Eeyore Posted March 4 Report Share Posted March 4 8 minutes ago, MtB said: Looks more like a pressure switch for the warning light to me than a thermistor, which a temperature gauge sender will be. Yes of course, I think I just got used to seeing all those tiny modern ones 😇 Link to comment Share on other sites More sharing options...
Tony Brooks Posted March 4 Report Share Posted March 4 I just did a Google images search and all the oil pressure switches were far smaller. I still think it is an earth return gauge sender - all those with that tin can design on Google were. 1 Link to comment Share on other sites More sharing options...
Steve56 Posted March 5 Report Share Posted March 5 14 hours ago, Eeyore said: Curious that it has a pipe (usually for a gauge) on a fitting behind the sender. Probably worth following the pipe and wire to see where they end up. Might be an oil temperature gauge sender? What you have there looks to be a VDO oil pressure sender. That pipe will be the feed pipe. Can't see exactly what engine you have, but if it is a SR engine the pipe will run to the forward end of the fuel pump housing. If an ST engine then it will run around to just above the oil filter on the crankcase door. Both of these engines would have originally used a mechanical gauge if ordered as an extra from Lister. Link to comment Share on other sites More sharing options...
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