12 volt oil pressure sending unit for 53 Special

[Brooklyn53]

I'm having trouble finding the correct oil pressure sending unit for my 53 Buick Special. I have a set of Dolphin gages. Everything works but the oil pressure gauge rises upon start up but then drops back down until I give it gas and then it rises slightly and drops back down. I suspect there's an ohm difference between the gauge and the sending unit. Does anyone know what brand and model oil sending unit I should order for my Straight 8 engine to work with 12 volt Dolphin gauges? Thanks Mike

[raycow]

Are you saying that Dolphin does not separately sell the sending units for their own gauges?

Ray

[Brooklyn53]

I contacted Dolphin to buy a replacement oil sending unit but I never heard back from them.

[raycow]

Their website shows a phone number 386-437-1077. You might want to keep trying it until you get a live person. Even if they won't sell you a sending unit, you will still need to get the resistance spec from them so you can look at units from other makers.

Ray

[Brooklyn53]

Dolphin replied to my email and claimed there is no after-market sending unit that is compatible with their gauges.

[suntreemcanic]

A 53 Buick Special is 6 volts. Have you converted it to 12 volts?

[raycow]

Dolphin replied to my email and claimed there is no after-market sending unit that is compatible with their gauges.

Well, that's good news in a way. It means that whether or not Dolphin is telling you the truth, they do want to sell you a sending unit.

Ray

[Brooklyn53]

My car is converted to 12 volts.