DeTomaso Mailing List: May 1997, Message #83
     



From: pantera@pobox.com (David Doddek)

Subject: Re: A different Oil pressure problem

Date: Sat, 3 May 1997 00:25:38 -0500



>I have an oil fluctuation problem that I could use some help on.  Uner heavy

>breaking my oil pressue drops to almost zilch.  Probably less than 10 psi.

> It then goes right back up.  I have Lance's 10 quart road-racing pan

>complete with trap doors, new gauges and senders (electrical), and 70 psi

>normally.  I'm using a high flow and pressure oil pump and I'm getting oil

>pressure from the front of the engine by the oil filter with one of Hall's

>extenders for the sender.  One more note.  If I leave it in gear and brake it

>does it, and if I put in the clutch and brake it does it, and if I put in the

>clutch and keep the RPM's up and brake hard (this is a bitch to do) it does

>it.  Sounds like the pickup is going dry for a moment but I can't imagen this

>happening with 10 quarts of oil.  Is this possibly due to Halls sender

>extension or from taking oil pressure from the front of the block? Help!  I

>haven't changed the sender back to the back of the block and checked the

>pressure there.  I guess unless someone comes up with a miracle fix that will

>be next on the list.

>

>

> The location of the oil sendor pickup will not matter.  It is most likely

the Oil pickup sucking air.  I have had this happen before.



David Doddek     pantera@pobox.com    www.pobox.com/~pantera    217-422-3722

69 EFI Fairlane, 89 T-bird SC, 74 Twin turbo NOS EFI Pantera (I like to go fast)