Accusump Plumbing

[carbuff]

One other related question. Maybe I should ask this in another thread, but we'll see if anyone here knows...

I'm considering ways to prime the LS before I try and start it this time. I'm sure that spinning it for a long time trying to build pressure in the external cooler and lines didn't help my bearing problem, especially since it had sat for so long. I'd rather not do the same thing this time.

Any suggestions for ways to prime this thing? One idea I have is to use the oil galley port on the front of the block that I wanted to run the Accusump into, add a metric to AN fitting there and put an AN cap on it. But when I need to prime the system, like the first time or after an oil change, I could remove the cap and figure out a way to pump oil into it, to at least fill the lines and cooler.

Has anyone done this, or have another way to get oil into the system without spinning the motor? My lines and cooler hold at least a quart, and it took a good while to get pressure up the last time when we were spinning it all...

[71RS/SS396]

Originally Posted by carbuff

One other related question. Maybe I should ask this in another thread, but we'll see if anyone here knows...

I'm considering ways to prime the LS before I try and start it this time. I'm sure that spinning it for a long time trying to build pressure in the external cooler and lines didn't help my bearing problem, especially since it had sat for so long. I'd rather not do the same thing this time.

Any suggestions for ways to prime this thing? One idea I have is to use the oil galley port on the front of the block that I wanted to run the Accusump into, add a metric to AN fitting there and put an AN cap on it. But when I need to prime the system, like the first time or after an oil change, I could remove the cap and figure out a way to pump oil into it, to at least fill the lines and cooler.

Has anyone done this, or have another way to get oil into the system without spinning the motor? My lines and cooler hold at least a quart, and it took a good while to get pressure up the last time when we were spinning it all...

External electric fuel pump..... Holley universal or whatever is cheap, something to use for a reservoir and some push-lock AN fittings and hose.

[carbuff]

Originally Posted by 71RS/SS396

External electric fuel pump..... Holley universal or whatever is cheap, something to use for a reservoir and some push-lock AN fittings and hose.

Seems simple enough, but where do you tap into the system? I'm thinking about adding a port on the front of the block where that oil galley out of the oil pump is, but I'm trying to decide what type and size fitting would be easiest. I'm targeting an M16x1.5 to -8AN fitting in the block, then just an AN flare cap to cap it when I am not using it...

[carbuff]

One thing I forgot to mention in the original post...

Canton strongly suggested that I NOT have the Accusump hooked up during the initial startup nor until I changed the oil the first time. Apparently it's not good for the piston in the Accusump to get the assembly and break-in oil in the cylinder. May or may not matter if the Accusump is after the filter, but it's easy enough to leave it disconnected during that time.

[GregWeld]

Eric needs that start up oiling tank!!


Or you can buy it and then rent it out on here to all the guys that just start their motors up after sitting for 10 years.... LOL

[jlwdvm]

I just ordered parts to get my 3qt Accusump plumbed into my 69 Firebird track/street car with an LS3 as well. I decided to mount the sump under the passenger side dash. I will be running the sump line into a Canton spin-on adapter at the oil filter (sandwiched between the filter and pan). I will be using an Improved Racing Thermostat (180?) that bolts to the pan above the filter. Lines will run from it to the cooler in my C&R rad. I've done a lot of research, but it looks like you may have done more...does this sound like it will do the job?

[carbuff]

Originally Posted by jlwdvm

I just ordered parts to get my 3qt Accusump plumbed into my 69 Firebird track/street car with an LS3 as well. I decided to mount the sump under the passenger side dash.

You have that much space under the dash? Will it be behind the dashpad (ie: hidden) or on the floor? If it charges/discharges very often, you will get some heat in there. I'm pretty mixed on the idea of having 3 quarts of hot oil in the passenger compartment myself.

Are you using a valve to shut off the tank flow? Manual? Electric? EPC?

How are you going to route the line through the firewall?

Since it's in the passenger compartment, one thing you might consider that would at least make me feel better would be to make a hardline from the Accusump to the firewall. You can have a bulkhead fitting there and use flexible line on the engine compartment side. It would just make installing the accusump a bit tougher.

Oh, and full of oil, it will have some weight to it. What are you mounting it to?

Originally Posted by jlwdvm

I will be running the sump line into a Canton spin-on adapter at the oil filter (sandwiched between the filter and pan). I will be using an Improved Racing Thermostat (180?) that bolts to the pan above the filter. Lines will run from it to the cooler in my C&R rad. I've done a lot of research, but it looks like you may have done more...does this sound like it will do the job?

I like that IR thermostat also, but already had the Mocal. I'm not sure exactly what your flow path will be on the filter adapter though. Does that adapter have fittings on it? If so, what size?

[71RS/SS396]

Originally Posted by carbuff

Seems simple enough, but where do you tap into the system? I'm thinking about adding a port on the front of the block where that oil galley out of the oil pump is, but I'm trying to decide what type and size fitting would be easiest. I'm targeting an M16x1.5 to -8AN fitting in the block, then just an AN flare cap to cap it when I am not using it...

We use the front port and Iirc we use a -10 line but had to turn down the points of the wrench flats on the fitting as it can interfere with some accessory drives. I reinstall the factory plug when finished.

[carbuff]

Originally Posted by 71RS/SS396

We use the front port and Iirc we use a -10 line but had to turn down the points of the wrench flats on the fitting as it can interfere with some accessory drives. I reinstall the factory plug when finished.

Tim,

Do you have any problem using this port with the oil going into pan instead of pressurizing the rest of the system? Or I wonder if your dry sump would act differently in this sense vs. my wet sump pump?

[71RS/SS396]

Originally Posted by carbuff

Tim,

Do you have any problem using this port with the oil going into pan instead of pressurizing the rest of the system? Or I wonder if your dry sump would act differently in this sense vs. my wet sump pump?

I pull the belt and use a drill to prime mine, plus I have a RHS block that has priority main oiling so it's a different kettle of fish. On stock blocks the lifter galley gets the oil first. I pull the oil plug on the pan and prime it until I get a good flow of oil out of the pan, I do all this on a dyno stand so it may not be so easy with it in the car.