Old Topic New User/CMI 525 water in oil
03-25-2018, 11:25 AM
#1
Registered
Thread Starter
Join Date: May 2013
Location: Bay Saint Louis, MS
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
Old Topic New User/CMI 525 water in oil
H
Hello,
realize this his is an old topic so apologize in advance. Have a Sunsation 288 MCOB with 525 EFI along with CMI headers. Currently have water in my oil, and best I can surmise, can occur from the following:
1. Blown head gasket
2. Headers
My question is, if it is the headers, how does water actually enter the oil supply? I am leaning to this as I have checked my closed loop system, level is steady and clean. Removed reservoir cap and started engine, with no back pressure to fluids. Oil pressure does seem to be high 65-70 on my Livorsi gauge. When my mechanic installed, indicated everything was fine by computer and not to worry running about 60 by gauge.
A buddy expressed the opinion that there may be a breach in the oil cooler, introducing oil into the seawater, which then goes through heads. If it was a breach in the oil cooler, wouldn't I have oil residue on the thru Hill tips? Currently have another 525 EFI that I can pull headers from, however, do not want to just start throwing parts without determining cause. As I get more into this world, which I love, trying to learn and do more on my own, while saving money. Greatly appreciate advice from those who know much greater then I.
Hello,
realize this his is an old topic so apologize in advance. Have a Sunsation 288 MCOB with 525 EFI along with CMI headers. Currently have water in my oil, and best I can surmise, can occur from the following:
1. Blown head gasket
2. Headers
My question is, if it is the headers, how does water actually enter the oil supply? I am leaning to this as I have checked my closed loop system, level is steady and clean. Removed reservoir cap and started engine, with no back pressure to fluids. Oil pressure does seem to be high 65-70 on my Livorsi gauge. When my mechanic installed, indicated everything was fine by computer and not to worry running about 60 by gauge.
A buddy expressed the opinion that there may be a breach in the oil cooler, introducing oil into the seawater, which then goes through heads. If it was a breach in the oil cooler, wouldn't I have oil residue on the thru Hill tips? Currently have another 525 EFI that I can pull headers from, however, do not want to just start throwing parts without determining cause. As I get more into this world, which I love, trying to learn and do more on my own, while saving money. Greatly appreciate advice from those who know much greater then I.
Last edited by geaux; 03-25-2018 at 02:30 PM. Reason: Add image
03-25-2018, 02:34 PM
#2
Registered
Thread Starter
Join Date: May 2013
Location: Bay Saint Louis, MS
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
Old Question New User Water/Oil CMI/525 EFI
H
Hello,
realize this his is an old topic so apologize in advance. Have a Sunsation 288 MCOB with 525 EFI along with CMI headers. Currently have water in my oil, and best I can surmise, can occur from the following:
1. Blown head gasket
2. Headers
My question is, if it is the headers, how does water actually enter the oil supply? I am leaning to this as I have checked my closed loop system, level is steady and clean. Removed reservoir cap and started engine, with no back pressure to fluids. Oil pressure does seem to be high 65-70 on my Livorsi gauge. When my mechanic installed, indicated everything was fine by computer and not to worry running about 60 by gauge.
A buddy expressed the opinion that there may be a breach in the oil cooler, introducing oil into the seawater, which then goes through heads. If it was a breach in the oil cooler, wouldn't I have oil residue on the thru Hill tips? Currently have another 525 EFI that I can pull headers from, however, do not want to just start throwing parts without determining cause. As I get more into this world, which I love, trying to learn and do more on my own, while saving money. Greatly appreciate advice from those who know much greater then I.
Hello,
realize this his is an old topic so apologize in advance. Have a Sunsation 288 MCOB with 525 EFI along with CMI headers. Currently have water in my oil, and best I can surmise, can occur from the following:
1. Blown head gasket
2. Headers
My question is, if it is the headers, how does water actually enter the oil supply? I am leaning to this as I have checked my closed loop system, level is steady and clean. Removed reservoir cap and started engine, with no back pressure to fluids. Oil pressure does seem to be high 65-70 on my Livorsi gauge. When my mechanic installed, indicated everything was fine by computer and not to worry running about 60 by gauge.
A buddy expressed the opinion that there may be a breach in the oil cooler, introducing oil into the seawater, which then goes through heads. If it was a breach in the oil cooler, wouldn't I have oil residue on the thru Hill tips? Currently have another 525 EFI that I can pull headers from, however, do not want to just start throwing parts without determining cause. As I get more into this world, which I love, trying to learn and do more on my own, while saving money. Greatly appreciate advice from those who know much greater then I.
03-25-2018, 03:27 PM
#3
Registered
Pull the headers and pressure test them. It is easy to do and will give you piece of mind one way or the other.
03-25-2018, 05:57 PM
#9
Registered
iTrader: (8)
A leaking oil cooler will push oil into the seawater circuit. Oil psi is higher than your seawater pressure normally. Likely not your problem. BTW Your engine is closed cooled, only coolant flows thru the block/heads. It's possible your headers are leaking bad enough to milkshake your oil. Water is ingested into the exhaust port and into combustion chamber and into your oil. Pull your headers and look into the exhaust ports on the head. If your headers are leaking this badly, you'll know immediately. It won't be pretty.
Are you 100% sure it's water? What's your coolant look like? Any signs of oil residue in it? A blown head gasket/cracked head should show signs by looking at the coolant.
Are you 100% sure it's water? What's your coolant look like? Any signs of oil residue in it? A blown head gasket/cracked head should show signs by looking at the coolant.
Last edited by Ryan00TJ; 03-25-2018 at 06:02 PM.
03-25-2018, 07:11 PM
#10
Registered
Thread Starter
Join Date: May 2013
Location: Bay Saint Louis, MS
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
The coolant is steady in terms of amount and looks exactly as it should. I guess I am trying to understand exactly exactly how water is getting in through headers, and will pull them, to ensure it does not happen again, especially when it is not supposed to.
