Moroso Air-Oil Separator (Catch Can) Install

[silveradoz7113]

I've been watching this thread and looking at the Moroso can as well. Any idea how large that collector cup is on there? Guess the reason I'm asking is I'm wondering how often it will have to be drained.

[BIG THUNDER II]

I've been watching this thread and looking at the Moroso can as well. Any idea how large that collector cup is on there? Guess the reason I'm asking is I'm wondering how often it will have to be drained.

 

It is about 3" in diameter and the bottom collector cup portion is about 2.5" heigh. I'm estimating it will hold about 6 to 8 ounces. Most people are reporting a collection rate of about 1 ounce per one thousand miles, probably more in winter, depending on your location. I fully intended to see how many ounces it would hold prior to my install, but I completely forgot.

[BIG THUNDER II]

I've been watching this thread and looking at the Moroso can as well. Any idea how large that collector cup is on there? Guess the reason I'm asking is I'm wondering how often it will have to be drained.

 

 

It is about 3" in diameter and the bottom collector cup portion is about 2.5" heigh. I'm estimating it will hold about 6 to 8 ounces. Most people are reporting a collection rate of about 1 ounce per one thousand miles, probably more in winter, depending on your location. I fully intended to see how many ounces it would hold prior to my install, but I completely forgot.

 

UPDATE: I just contacted Moroso and they said the capacity was 10 ounces.

[SilveradoLS]

Thanks for the info.

[iCryWheniGoPoop]

Just ordered mine, thanks!

[fuse36]

What exactly is the purpose of this separator? This is my first new truck much less a newer one. I don't understand the need to for the why. It looks good though and if you don't mind me asking what's a setup like that run?

only good investment if u plan on keeping the truck forever lol

 

 

Sent from my iPhone

using Tapatalk

[Half_ton]

I disagree. It will keep your performance and mileage up for the life of the truck. Rx has torn down DI. Engines with as little as 30k on them with quite a bit of valve coking.

[fuse36]

I disagree. It will keep your performance and mileage up for the life of the truck. Rx has torn down DI. Engines with as little as 30k on them with quite a bit of valve coking.

cool. I just never keep a vehicle long enough to care. I'm always looking for the next best vehicle. I keep them about 100,000 miles then trade for new one. I've now owned two 2014 silverados. First one I put 30k on now second one has 35k. So all I do is change oil and add modifications that I want then I'm usually done with the truck. No need for me to even follow the scheduled maintenance because they can go a long time without changing half the stuff it calls for especially if I'm always trading in. And trust me I know the dealer could care less if I have service history to provide them.

 

 

Sent from my iPhone

using Tapatalk

[SirManny]

 

Are you referring to the Moroso instructions and application? If so, I'll see if I can take some photos tomorrow, and clarify this for you.

Can you take some pictures to show where the hoses hook up? I just ordered my Moroso can and would like to have knowledge of the complete setup. Thanks.

[BIG THUNDER II]

Can you take some pictures to show where the hoses hook up? I just ordered my Moroso can and would like to have knowledge of the complete setup. Thanks.

 

I hope these pictures help. It was hard to get good clear photos. I removed the original GM connecting part and cut out the middle section. I left about one inch of the hard tube at the curved (front) end and about four inches of the hard tube at the other end, and disposed of the middle piece.

 

The instructions said to heat the end of the hard tube with very hot water, and then slide it on the included nipple. This didn't work for me so I bought a piece of 5/16" hose just like the included 3/8" hose, and slide one end of a short piece on the hard tube and the other end on the nipple. The 3/8" hose goes to the other end of the nipple and runs to the Moroso. I added clamps, but they probably were not necessary because it was a very tight fit.

 

The Moroso does not have a flow direction, so it doesn't matter which side of the Moroso you hook it to. When you are finished you will have one hose running from the front to one side of the Moroso and the other hose running from the drivers side to the other side of the Moroso.

 

This shows the drivers side about half way back.

This shows the front just below the throttle body. It runs horizontally in the center of the photo and has two clamps visible.

This is the original GM part that connects the front to the side. The curved end goes to the front. Be careful when you detach this. Fully depress the light colored protruding piece and slide it off. There is one at each end. When you reconnect it, just slide it on and you will hear it click into place.

 

It is harder to describe the procedure than actually do it.

[SirManny]

 

I hope these pictures help. It was hard to get good clear photos. I removed the original GM connecting part and cut out the middle section. I left about one inch of the hard tube at the curved (front) end and about four inches of the hard tube at the other end, and disposed of the middle piece.

 

The instructions said to heat the end of the hard tube with very hot water, and then slide it on the included nipple. This didn't work for me so I bought a piece of 5/16" hose just like the included 3/8" hose, and slide one end of a short piece on the hard tube and the other end on the nipple. The 3/8" hose goes to the other end of the nipple and runs to the Moroso. I added clamps, but they probably were not necessary because it was a very tight fit.

 

The Moroso does not have a flow direction, so it doesn't matter which side of the Moroso you hook it to. When you are finished you will have one hose running from the front to one side of the Moroso and the other hose running from the drivers side to the other side of the Moroso.

 

MOROSO2.jpg

This shows the drivers side about half way back.

MOROSO3.jpg

This shows the front just below the throttle body. It runs horizontally in the center of the photo and has two clamps visible.

MOROSO4.jpg

This is the original GM part that connects the front to the side. The curved end goes to the front. Be careful when you detach this. Fully depress the light colored protruding piece and slide it off. There is one at each end. When you reconnect it, just slide it on and you will hear it click into place.

 

It is harder to describe the procedure than actually do it.

Thanks.

[BIG THUNDER II]

Thanks.

 

You're welcome.

 

I should have noted that this applied to the 5.3. On the 6.2 the driver side connection is much closer to the front.

[SirManny]

 

You're welcome.

 

I should have noted that this applied to the 5.3. On the 6.2 the driver side connection is much closer to the front.

I have the 5.3 so this will be a great help. And its such a clean install too.

[chvylac]

nice and clean

[BIG THUNDER II]

Well, I drained my Moroso catch can today for the first time since my install. I collected 1.5 ounces after 688 miles of normal driving, which works out to about 2.18 ounces per thousand miles. I will continue to monitor it until I get a better handle on the rate across all seasons, but if it maintains this rate I will need to drain it not later than about every four thousand miles. I am going to utilize one of the trip odometers to serve as a reminder.