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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: 77c15 on November 06, 2007, 06:04:25 pm

Title: Factory mechanical sending availibility
Post by: 77c15 on November 06, 2007, 06:04:25 pm

Speaking of mechanical oil pressure sending units, anyone know where you can buy one? I looked through all of our catalogs at AutoZone, searched through all the sending units at Advance, and   doesn't list one. I am lost. My 74 has the brass looking tube from the firewall to the block.

Title: Re: Factory mechanical sending availibility
Post by: baddogg79 on November 06, 2007, 08:27:17 pm

I thought there was no sending unit for the mech oil pressure gauge. Just the metal tube to the back of the gauge itself ???

Title: Re: Factory mechanical sending availibility
Post by: DnStClr on November 07, 2007, 01:56:43 am

That's right. There's no sending unit on a mechanical oil pressure indicating system.The oil flows right to the gauge and the gauge is made so it can react to the pressure of the oil.

Title: Re: Factory mechanical sending availibility
Post by: Captkaos on November 07, 2007, 09:47:25 am

Sorry for no replying when I split this.  Mechanical oil pressure units don't have a sender as stated above, they plug directly into the block and oil travels to the gauge.  (don't loose the ferels on these, they are GM specific and I haven't found them)

Title: Re: Factory mechanical sending availibility
Post by: 77c15 on November 07, 2007, 07:00:34 pm

That's what got me: I lost the ferels when I ditched the 307 that was rigged up in the truck when I bought it and must've left them attached to it. I've got some brass connectors rigged up for now, so I guess as long as they don't leak (sealed with teflon tape), then I should be good to go. Thanks, Chris!

Title: Re: Factory mechanical sending availibility
Post by: Captkaos on November 07, 2007, 10:36:24 pm

If they don't leak you got it made.