Wiggilez Posted March 20, 2016 Share Posted March 20, 2016 I while back I bought another sending unit to replace the one in my 86 the guy I had bought it off of had swapped a 95 drive line in his MJ so there is a possibility I have an HO sender will it work. I can live with the gauge reading backwards. Thanks. Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 20, 2016 Share Posted March 20, 2016 Is this a statement or a question? :hmm: Link to comment Share on other sites More sharing options...
Wiggilez Posted March 20, 2016 Author Share Posted March 20, 2016 It's a question, I'm hoping that it will be the opposite of running an HO motor with a renix sending unit Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 20, 2016 Share Posted March 20, 2016 You need to ID which sender you have, and what fuel gauge (Renix or HO) it will be feeding to determine how the gauge will read. It's based on the ohms resistance from the sender potentiometer as the float arm travels it's arc; i.e. high-to-low or low to high ohms output as it travels from full to empty. Most of the MJ fuel senders have a p/n stamped on them somewhere and can be ID-ed from that number. Link to comment Share on other sites More sharing options...
Wiggilez Posted March 20, 2016 Author Share Posted March 20, 2016 the gauge will be renix (1990) and I will check on the sender tomorrow as I will have to find it in my shed Link to comment Share on other sites More sharing options...
Wiggilez Posted March 21, 2016 Author Share Posted March 21, 2016 I couldn't find any P/N on it. is it supposed to be on the inside part of it or the outside part? Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 21, 2016 Share Posted March 21, 2016 It's stamped on the discharge tube on the HO senders. The below is a pic of one of the NOS senders I have - they are all the same on the HOs. Check out the potentiometer. If your sender has the same potentiometer it's an HO. The Renix sender potentiometers were very different. Image Not Found Link to comment Share on other sites More sharing options...
Wiggilez Posted March 21, 2016 Author Share Posted March 21, 2016 Thanks for the picture I'll re check tonight :) Link to comment Share on other sites More sharing options...
Wiggilez Posted March 21, 2016 Author Share Posted March 21, 2016 mine looks not the same, so it is renix? Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 21, 2016 Share Posted March 21, 2016 Yah, that looks Renix. Looks to be in good shape too. To verify you can measure the resistance across the potentiometer. The HO senders are 105 ohms. Link to comment Share on other sites More sharing options...
Wiggilez Posted March 21, 2016 Author Share Posted March 21, 2016 Yah, that looks Renix. Looks to be in good shape too. To verify you can measure the resistance across the potentiometer. The HO senders are 105 ohms. sweet :) Link to comment Share on other sites More sharing options...
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