|
low oil temp
Running a 31 scarab with twin 454s. When I got the boat the oil temp would climb up and get hot. I removed the cooler and cleaned. It was full of rocks sand and impeller parts. I went ahead and cleaned both engines. Now after cleaning the oil temp is very low. Pressure is fine but temp will hardly show up on the gauge. I know they are right because I can hold the oil filter with my hand. I know its winter here and the water temp is pretty low for florida. Is this going to harm anything?
|
It will eventually start causing milky looking engine oil/cream cheese breathers because the oil isn't getting hot enough to steam off the condensation. I had this problem at one time and ended up adding oil tsats.
BT |
the first question is what was it when it was hot and what is it now?
|
and do not forget OIls job is also to help cool internal engine parts as well so in return its going to get hot from grabbing heat.
Cold oil does not flow as well - IMO good oil temps 185 to 225 maybe 190 to 220 and it has to reach at some point 212 degrees for a bit to burn off the process of combustion inwhich is water vapor & condensation. Oils job and related parts also is to flow at the right volumes at the right place at the right times - |
Are you taking the temp before or after the cooler? My oil barely reaches 140°F after the cooler.
|
Originally Posted by Rookie
(Post 4663940)
Are you taking the temp before or after the cooler? My oil barely reaches 140°F after the cooler.
What are you getting for oil temps after hard runs before cooler? |
Took it out tonight and after a hard run I was able to get 190 out of one engine. Other engine showed nothing. Felt the oil filters and they where about the same temp so looks like I need to trouble shoot an indicating problem. Pretty simple system I’ll get into that tomorrow. So when the water temp comes up everything should be good. Rookie it it takes the oil temp right at the oil filter housing so I would say before the cooler. |
Originally Posted by compedgemarine
(Post 4663930)
the first question is what was it when it was hot and what is it now?
|
go buy a laser temp gun. they are pretty cheap and you can shoot each engine to see what they are running and how close to each other they really are. senders go bad all the time and even gauges depending on how old they are and what brand. if the laser gun shows them to be close to each other then all is good other than the sender or gauge.
|
Originally Posted by getrdunn
(Post 4663963)
On my 496 engines I installed oil temp sender in pan and water in block off a T fitting. Just my preference. What are you getting for oil temps after hard runs before cooler? |
| All times are GMT -5. The time now is 06:34 AM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.