Plastic oilpan

[grasmo]

Just changed my oil today. I am 99% sure I have a plastic oil pan. Did not look real hard nor did check it with a magnet nor scratch test but was pretty dang sure the thing was plastic.

 

[DBentley]

guess it cant rot out like the fords do

 

[gsbrockman]

Just changed my oil today. I am 99% sure I have a plastic oil pan. Did not look real hard nor did check it with a magnet nor scratch test but was pretty dang sure the thing was plastic.

If you really *think* your oil pan is made of plastic, maybe you shouldn't be changing your oil in the first place. :-laf

 

[betterthanstock]

Maybe a noise cover.

 

[hatchy]

The oil pan is sheet metal, the frame rails are plastic

 

[grasmo]

A metal pan should not flex 3/8 of an inch by pushing with your thumb. I also have been a mechanic for 19 years and as far as not changing my oil myself ..... well I won't say what I feel like saying.

 

[grasmo]

Probably gonna catch he_ _ for posting but I would not be too surprised. The pan felt like it was flexing a whole bunch and when I tapped with my ratchet it sounded to be plastic You guys are the first place I check when something strange comes around.

 

[grasmo]

Just checked with my second "go to" and as I suspected the oil pan is a Constrained layer design and the average mechanic would probably not noticed any difference in this on less he pushed up with his fingers or tapped with his ratchet while changing the oil. the pan produced a different sound and feel to me which I noticed immediately. I am sure if you tap on yours with a wrench or push on it with your thumb you will understand why I thought it was plastic.

 

[speedyjdl]

Constrained layer design? Is that good or bad?

 

[Gary - K7GLD]

A metal pan should not flex 3/8 of an inch by pushing with your thumb. I also have been a mechanic for 19 years and as far as not changing my oil myself ..... well I won't say what I feel like saying.

HEH HEH...



SOMETIMES in their rush to make someone ELSE look foolish, the effort backfires... . :-laf:-laf

 

[sag2]

Several of the Chrysler engines now use MPM valve covers or pans. It is metal plastic metal and is made by sandwiching the parts together. The advantage is noise reduction and weight savings. I was not aware the Cummins was using it now.

 

[grasmo]

I wonder if it is a chrysler specific, to clear the k-member?

 

[Excessive Force]

The idea of a plastic oil pan isn't that far fetched. There is a local excavator here that has a couple older Western Stars that have plastic oil pans. Not a good idea in a dump truck application..... He's went through a few oil pans on these trucks.

 

[EOwen]

NVH Cover

I have been in the automotive acoustics business for 25 years.

15 years ago we were prototyping barrier/absorber noise covers for oil pans, transmission hsgs, valve covers, fuel rails, intake manifolds etc.

Several of which made it to production for Ford 4. 6 and 5. 4 motors, but were also one of the first things to get eliminated with a cost reduction or "decontent" during late model years.

My guess would be if the pan is soft and flexible (havent even looked at mine yet, nor changed my sig to my new rig 2 days old) it is an acoustic NVH cover, over the metal or plastic pan.

If it is hard and structural like a Nylon type plastic, then it is a plastic pan.

Gotta crawl under this thing and check out more than the mombo drive shaft.

I will stop now.

 

[grasmo]

If a rod knocks inside a constrained layer oil pan does it still make a noise? Just kidding.

 

[Ace476]

Just tried to attached a magnet to my 08 6. 7 oil pan and it clinked on just as if it were metal! Do the composite pans do that?