Oil Pressure Sender Help

[Richardnew]

I'm getting some wild gyrations on my oil pressure gauge. Buz at Seattle Speedometer suggested I replace the sending unit before I get crazy and send him the gauge.

My problem is there are so many sending units for sale. Prices are all over the place. This is a 1973.5 engine. What, and from who, would you suggest I purchase?



Richard Newton

[ESully]

Here are 2 options, both URO. Pelican is slightly cheaper.
65-216814-1 http://www.automotion.com/oil-pressu...1965-1973.html
901-741-551-02-M253 http://www.pelicanparts.com/catalog/...ENGOIL_pg4.htm

[Frank Beck]

Typically uro means urine.



In this case it's crap.

[Richardnew]

Ok Frank. What would you buy?

Richard Newton

[Frank Beck]

I think I may have an extra new VDO.
I'll check.

[Frank Beck]

You need 911 606 111 02. No gots in VDO.
Sorry.

I have the 901 senders in VDO.

[ESully]

901-741-551-01 was original part number, superceded to 901-741-551-02.
911 606 111 02 is for 74 on.

[Frank Beck]

I believe his photo shows a 911 606 111 02.

Richard, if it is in fact the 901 part you need I have them available in VDO.

[Richardnew]

I probably need the 901 part. It's a 1973.5 with CIS.

I have no clue if mine is the original sending unit. I just know it's been in there for the past 30 years. It can't hurt to go back to the original unit. Right?

Richard Newton

[ESully]

I don't know what sender is in the photo, but I know what my 1973.5 uses.
If Frank has a VDO then great, if not the URO will work.
Make sure your electrical connections are good. Power is supplied to the gage by the Bk/Rd wire on the back. It is then connected to the sending unit with the Grn/Rd wire.
The sending unit works the gage by varying the resitance to ground. A poor ground strap, or connection in the 14 pin connectors could also cause problems.