LS2: Prime Oil Pump

Reply Subscribe

Thread Tools

Search this Thread

May 9, 2007 | 01:17 PM

VesperWillow

Thread Starter

Staging Lane

Joined: Oct 2006

Posts: 59

Likes: 0

LS2: Prime Oil Pump

Ok, so I've checked several threads on here and on LSxGTO.COM and it seems that some people say to force oil into the sensor-port on the front of the motor (above the crank), and others say that doesn't work since there's a 1-way check valve on the oil pump.

So how exactly do you prime the system? It doesn't seem right to just fill'er up with oil and crank until something happens..

May 9, 2007 | 03:10 PM

VesperWillow

Thread Starter

Staging Lane

Joined: Oct 2006

Posts: 59

Likes: 0

Bump for help, priming LS2 system

May 9, 2007 | 03:43 PM

Boosted LS1

TECH Apprentice

Joined: Jan 2002

Posts: 320

Likes: 5

From: Nottingham, Notts, England, UK

Have you thought about using a funnel and filling up via the oil pressure switch at the back of the intake? Not something I've ever tried but given some time I'd expect oil to reach all the critical parts.

May 9, 2007 | 04:47 PM

427

TECH Junkie

iTrader: (3)

Joined: May 2003

Posts: 3,898

Likes: 6

From: Clayton, North Carolina

We use a canister that could hold about 2.5 quarts. We put 2 quarts in the canister and cap it. We then pressurize the can with air (it has a tire valve on top) with a valve on the bottom of can closed. Then we hook a line to the front oil galley and open the valve. We repeat 3 times (6 quarts). Then we loosen the oil filter and bump the engine over without spark plugs until oil comes out at the filter mount, this is just to avoid airlocking pump. We then tighten filter and roll over (still no sparkplugs) until we see oil pressure on the dyno guage. Then install plugs and start.
This process has worked for us.

Kurt

May 10, 2007 | 07:55 AM

VesperWillow

Thread Starter

Staging Lane

Joined: Oct 2006

Posts: 59

Likes: 0

Kurt, that sounds like an interesting idea. Is it a canister you made? Any photos? I could make one it sounds like. Any special fitting for the front oil galley?

May 10, 2007 | 01:43 PM

427

TECH Junkie

iTrader: (3)

Joined: May 2003

Posts: 3,898

Likes: 6

From: Clayton, North Carolina

We made the canister.
Yes we use the front oil galley.

Kurt

Attached Thumbnails

LS2: Prime Oil Pump-2007_0509gto-5-10-070004.jpg

LS2: Prime Oil Pump-2007_0509gto-5-10-070005.jpg

May 10, 2007 | 02:02 PM

VesperWillow

Thread Starter

Staging Lane

Joined: Oct 2006

Posts: 59

Likes: 0

Really interesting, I think I could make something like that out of a spare air tank. Thanks for the info & time =)

Anyone else have additional ideas? This could be a helpful thread.