Corvee

Had my mechanic install an aviad oil pan baffle and the sump insert while the pan was off. The oil pressure drops to zero after about 7 minutes at idle. It appears the oil is not returning to the dry-sump.

Any ideas?

dvandentop

hmm interesting. let us know what the issue is

Joe_Planet

is it 7 minutes every time? or just one time? if the oil isnt being returned then its an oil pump or possibly clogged line problem... maybe its a bad oil pressure sensor??

jmorgan07z06

Did the mechanic have experience installing one of these? I read that they can be a bit tricky.

Jason

Dreamin

WAG: air leak in/around oil pan. Small enough to get air thru - thus no oil pressure, but not for oil to get thru so you see oil.

PM captain454, he had this problem with his ARE install.

G/L

VRedZ06

I agree that something in the install is not right. I have had mine on for 3/4 year and no issues at all. There a install issues going on here.

ErnieO

Let us know what the test shows but there a air leak somewhere. or a clog.

Corvee

Same repeat for three times. Oil lines were cleaned and no debris in pan. Pump replaced with Katech unit.

Corvee

Hey Jason. Yes, new install for the mechanic but he is a veteran and knows what he is doing. He was on the phone with Aviad today and everyone is puzzled. I am PO'ed because I planned to run at MSR Houston this weekend and this.

Jim

Corvee

Oil pressure is good at start (60+ lbs) then drops to nil.

jmorgan07z06

Sorry to hear that. I saw your post at 4pm and thought that you must have missed MSR Houston. Maybe you can make it up here for the May run at MSR cresson. The 3.1 is very fun.

Joe_Planet

I'm with Dreamin on this one... an air leak would explain everything

Corvee

We replaced the gasket around the pan and used proper sealant. Thanks for the suggestion - will look into it.

Corvee

Yes, big disappointment, the weather is perfect here today 70 to 80 and no rain. Just hope I can resolve this problem before NASA at TWS next weekend.

I am kicking myself now for tackling this install at the last minute. I asked Rick to pencil me in for Cresson next month. What was the name of that resort you suggested to park the wife at?

Maxx Schlick

jmorgan07z06

Well there is the Best Western just across the street which overlooks the track. If you truly want to stay at a resort I hear the ******* Texan in Grapevine is the place to go. It is a 35min drive to the track.

wstaab

Make sure the oil lines from the pan to the dry sump tank are not reversed. If the line that supplies the pump intake side of the oil pan is accidentally connected to the return side of the of the dry sump tank you will have oil pressure at idle for a few minutes from the residual oil that drains back to the pan through the scavenge line that is connected to the wrong port on the dry sump tank when the engine is not running. Once the residual oil in the pan is depleted you are sucking air through the supply line which is connected to the wrong port. If the lines are correct you have an air leak in the gasket that seals the pan to the pump. Not uncommon. The machined edges on the stock pan are very sharp and can nick the sealing o-rings on the pan gasket. Good luck.

VRedZ06

Sometimes the obvious just passes us by. The line switch is a great suggestion. Didn't even think to do that. Keep it simple stupid. First thing to check is the lines. (Just like your electronics at home, first thing is do you have power to the box and is it on.
ErnieO

Corvee

The oil lines are not crossed. I looked under the car and compared to another Z06 in the shop. The oil pan gasket is new. The problem appears to be cavitation at the pump, leading to no oil being returned to the tank. Thanks for the suggestions.

rustyguns

WHAT FIXED IT?