1:1 Engine question

[godale03]

Hey Guys,

I have a question regarding the engine in my 1:1 Truck. I changed my oil this weekend and when I removed my oil cap it had a yellow pudding like substance inside the cap. It was a very creamy consitancy. My question's are, does anybody know what this stuff is? Is it normal? Should I be worried? The oil that I drained out was normal oil color. I didn't see any trace of it in the draining oil at all. I use full synthetic oil and I change it every 3 to 5 thousand miles. The motor only has 10K miles on it and the truck is 2 years old. Thanks in advance guys.

Tom

 

[godale03]

afternoon bump!!

 

[beason]

i would say water in the oil, but if the rest was the right color then I'm assuming not. was this on the cap or plug?

 

[godale03]

i would say water in the oil, but if the rest was the right color then I'm assuming not. was this on the cap or plug?

It was just on the inside of the oil cap.

If it is water in the oil... how in the heck could it have gotten in there?

 

[2000delux]

Found online - sounds like it is moisture :
I believe what you're seeing is water condensation in the oil on the fill cap. In cold weather any water vapor in the engine will condense in the cold areas. The way our oil fills are designed makes the cap quite cold and therefore it will condense there. This can be aggravated if you typically use the car for short trips that do not allow the engine to get heat soaked. I've seen this on many cars I've owned. Typically it will go away when the weather warms up. Of course, the way to know for sure is to drain the oil and take a look at it.
They did also say if you bring it up to operating temp everytime - as in drive a bit further it should calm down a little or wait till the weather gets hotter...
Another site (rotary one) said this could be as bad as a head gasket but they guy had the goo stuff all the way down the pipe as well as on the cap - might want to get it checked but probably oK hope it helps!

 

[SMaxxin]

My first thought was water but you said it looked good when you drained it sooooo in my best Mythbusters voice......I would say that the water condensation theory is plausible. If water was getting into the oil you would have seen it when you drained the oil, it would have been milky...I can tell you from personal experience there is no mistaking it.

You said the motor only has 10,000 miles so I would talk to someone from where you bought the motor from. IMO taking advise on a forum for your rc is ok but for a 1.1 go to someone that has a little more experience.

 

[Rolex]

I can't believe you NASCAR guys. All the motors in his truck are fine. This is the ENGINE we're talking about.
Agreed on the condensation theory. It's the same reason you see condensation coming out the tail pipe of a car that's not fully up to temp.
If you had a leaking head gasket your oil would take on a grayish tint, and there would be NO doubt whatsoever that you had water in the oil. You would even notice it on the dipstick whether it was new oil or old and black. Either way, you'd see the foggy mixture.

 

[Mattyfats420]

I've been a mechanic now for 5+ years. on new cars they use alot of lube and other sythetics for engine assembally . what your probably seeing is a mixture of lube and moisture which makes a yellow goupy mess at the bottom of the oil pan. usually see this in new cars up to 20,000+ miles. nothing i would worry about

 

[Ryan with savage]

If it was an old engine I'd say the head gasket was on its way out - or its been driven hard when cold a lot.

I can't believe you NASCAR guys. All the motors in his truck are fine. This is the ENGINE we're talking about.
Agreed on the condensation theory.

Sorry can't help myself!!!!

No its a Motor. A Motor is not exclusively an electrical device - "Motor" also refers to an internal combustion engine.

mo·tor (mō'tər) Pronunciation Key
n.
Something, such as a machine or an engine, that produces or imparts motion.
A device that converts any form of energy into mechanical energy, especially an internal-combustion engine or an arrangement of coils and magnets that converts electric current into mechanical power.

 

[godale03]

I spoke with Toyota this morning and they basically said the same thing. It is most likly condensation and nothing to be concerned about. He said that this time of year condensation builds up and mixes with the oil, creates the goop and that I should just clean it out and keep an eye on it. He said it should go away once the temps get a little warmer. Thank you guys for the help.

Tom

 

[HeartBreak]

My Oldsmobile Achieva used to get that under the dipstick cap. The only cure for it is regular oil changes. Also, if your cap screws on slightly (like a quarter turn or so), you can put an o-ring on it to seal the gap.

 

[Racer 1966]

"Motor" also refers to an internal combustion engine.

No, it's an ENGINE, you said it yourself, motor is used to refer to it but it is an engine. :OT:

It's unlikely that the assembly lube( Lubriplate white lithium grease is the most commonly used) would be on the filler cap. Moisture condensation is the most likely culprit I'd bet without seeing it. If it bothers you, remove the cap, clean it, and put it back on. There's usually a seal on the cap so make sure it seals when installed. A bad seal or leaving the cap slightly loose is probably how it started. Lube or moisture, either way it's nothing to be too concerned about.

BTW, I've been OUT of mechanicing for 20 years, but I still do my own. In fact I just finished fixing the engine in our van due to a dropped valve on #6 cylinder. What a PITA!

 

[Lessen]

fftopic:

Internal Combustion ENGINE. Enough said. You can get as techinical as you want with a dictionary but it's still an engine.

Not all of us Nascar fans refer to the engine as a motor by the way Ralphy.

 

[SMaxxin]

motor/engine...Does it really matter? It's the big thing under the hood that drinks all of that high priced gas!

 

[Mattyfats420]

and godale03. even with sythetic oil. i would still reccomend changing the oil ever 3K miles. especially for your first 20-30K miles

 

[Rolex]

Not all of us Nascar fans refer to the engine as a motor by the way Ralphy.

Stop with that stick, already! You won't learn till you poke someone's eye out, Joshie.

At Indianapolis, they NEVER say, "Gentlemen, start your MOTORS!"

 

[Ryan with savage]

Stop with that stick, already! You won't learn till you poke someone's eye out, Joshie.

At Indianapolis, they NEVER say, "Gentlemen, start your MOTORS!"

no but they could do and it would still be correct....and I've never heard of "Ford Engine Company" or "General Engines" I've also never driven an Enginecar......:yes:

 

[marauder]

To the OP, do you only make short trips when you drive? If so, the buildup is normal. I do agree that this time of year condensation a noticable issue, but nothing serious to worry about. After the oil change and running the engine, when you check the dipstick does it look normal or milky?

Have the radiator checked for CO2 witch is an indication of a blown head gasket. Pressure check the coolant system with a home test kit or pay a shop to do it while it's there. It is also possible that your intake manifold(s) are leaking coolant into the oil.


As for the motor/engine thing...why do they call the thing that holds the engine in the bay 'motor mounts' then? lol, dictionary also refers to a internal combustion engine as a motor.

I never really see you guys correct people on the use of the word battery either. Individual cell, and a group of cells is a battery. Same with Clips and Magazines in guns, people always say 'same thing' but those aren't. Some arguments just make no sense when it gets the point across. /end rant