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Topic: Interior plastics turning oily? (Read 3325 times) previous topic - next topic

Interior plastics turning oily?

The Car:
1985 Tbird 30th Anniv
30,000 miles
Always Garaged, disturbingly perfect

But I go to pull the car out of storage and the door plastic (below the arm rest, the part that has the door light) is quite literally soaking in oil, like somebody slathered maple syrup on them. The car has never seen Armor All or anything else. It just oozed out for some reason.

Why did this happen? Does anyone have an answer for this?
pro-five-oh

88 Cougar XR-7...5.0HO, T-56, and much more                             
85 Thunderbird 30th...#2471, 29k, all original and might actually stay that way

Interior plastics turning oily?

Reply #1
outgassing?
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1974 maverick lsx powered turbo car SOLD
1973 maverick Tijuana Taxi Tribute
1957 chevy LSX Turbo project (race car)
Owner of Joe Dirt Fabrication


Interior plastics turning oily?

Reply #3
My Cougar did that too, only on the steering wheel. It sat for 15 years, and the steering wheel did that badly.
"Real cars dont power the front wheels, they lift them"
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1984 Mercury Cougar GS 5.0:cougarsmily: BBK Equal Length Shorties, BBK O/R X-Pipe, Magnaflow Magnapacks, Mustang GT Stainless Tailpipes, 18" Magnaflow Rolled Edge Tips. Turbo Coupe Hood, Mach 1 Chin Spoiler. 17"x9" Cobra R's, Falken Ziex 255/50s, and 245/45s.
1984 Ford Thunderbird 3.8L "Drag Queen"
2009 Dodge Ram 1500 Lone Star Edition 5.7L Hemi 400hp, lex DOD14M Magnaflow retro-fit ler kit

Interior plastics turning oily?

Reply #4
You don't have a leak do you?
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Interior plastics turning oily?

Reply #5
Quote from: thunderjet302;174287
You don't have a leak do you?


an oil leak in his door???  its just the nature of the material

Interior plastics turning oily?

Reply #6
Yeah, I'm wondering if the vinyl is just deteriorating. Which is weird because my Cougar sees a lot more time in the sun because its under a carport, not in a storage facility.

This could be bad news. Any ideas on preserving it? Right now I'm gonna go with baby oil.  I mean, it works pretty well on babies. :)
pro-five-oh

88 Cougar XR-7...5.0HO, T-56, and much more                             
85 Thunderbird 30th...#2471, 29k, all original and might actually stay that way

Interior plastics turning oily?

Reply #7
yup and babies = Ford Fox-body interior plastics so transitive property----> it will work 100% guaranteed end of story babies FTMFW
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Interior plastics turning oily?

Reply #8
Quote
Right now I'm gonna go with baby oil. I mean, it works pretty well on babies.

But how many babies are squished just to get that baby oil? Seems cruel and inhumane for just keeping car parts from aging. ;)

Interior plastics turning oily?

Reply #9
Nothing's too good for a 30th Tbird. Mother's milk, baby oil, etc... :D

The car will be heading to my garage for an oil change/etc. soon and I'll take shots of the problem. (and the rest of the car)
pro-five-oh

88 Cougar XR-7...5.0HO, T-56, and much more                             
85 Thunderbird 30th...#2471, 29k, all original and might actually stay that way

Interior plastics turning oily?

Reply #10
I'm glad to see you still have that car. It's a stunning example of a 30th.
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Interior plastics turning oily?

Reply #11
Quote from: 88turbo;174289
an oil leak in his door???  its just the nature of the material


I meant form something overhead leaking and dripping down the door panel;)
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Interior plastics turning oily?

Reply #12
Quote from: thunderjet302;174387
I meant form something overhead leaking and dripping down the door panel;)


It sits under a car cover in a garage.  Its absolutely gorgeous, except for this problem. :)

Someone from LincolnsOnline mentioned that the foam padding is the cause of this...it melts in the (Houston) heat and the goo eventually runs through the vinyl. That makes the most sense, judging by what I've seen.
pro-five-oh

88 Cougar XR-7...5.0HO, T-56, and much more                             
85 Thunderbird 30th...#2471, 29k, all original and might actually stay that way

Interior plastics turning oily?

Reply #13
I was going to mention the heat thing...that's about the only thing I can think of. I have never, in 20+ years of messing with these cars, seen an interior part "sweat oil" or melt. But I'm in Ohio...summers, they can get warm sometimes here, yet not like the South. We might see 10-15 days a year of 90+ degree weather. A typical summer day is 70-85 degrees. Simply put, we just can't generate the kind of summer heat needed to melt plastic like that. It has to be a climate/location thing.

Interior plastics turning oily?

Reply #14
its got to be the heat. my steering wheel oozes this sticky black tar substance. so i'm going to pull the steering wheel out of the turbo. but the other day in the heat with the car locked hit it with a laser thermometer and the interior wea 152*
louie  :birdsmily:
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