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Old 06-17-2016, 03:32 AM   #1
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Borg Warner/Velvet Drive 72 - Question about pressure sender port

Where exactly am I supposed to connect the pressure sender? On the diagram in the service manual, there are three ports, and I have attached the mentioned diagram here. One port for the oil to the cooler outlet, one for the mainline pressure tap and one for reverse clutch pressure tap. So I have attached the hose to oil to the cooler outlet, I have attached mechanical pressure gauge to the reverse clutch pressure tap, and I have attached the electrical pressure sender to the mainline pressure tap. Mechanically, everything runs perfect (gearbox is new). When in reverse I do read the pressure on mechanical gauge, but in forward there is no pressure on electrical sender (no reading at the gauge). Sender, gauge and the wiring are OK (checked twice). Am I reading this diagram wrong, should I connect the sender to the cooler outlet? Where am I mistaking?
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Old 06-17-2016, 09:12 PM   #2
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I think you're reading it right. Try putting the mechanical gauge in the mainline port

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Old 06-17-2016, 09:25 PM   #3
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Greetings,
Welcome aboard Mr. N.
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Old 07-01-2016, 04:05 AM   #4
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Thank you very much for the welcome and for the response. I will try putting mechanical one in mainline port, I would have done that already, but fittings are different, so I have to find or build the adapter first or find the mechanical gauge that fits for test purposes.

I must say that I have just joined this forum, but I am reading this forum for quite some time and I have found many useful information, especially during my boat renovation/restoration process.
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