Is the I-5 oil pan painted on the inside?

[David Kase]

I would not paint the inside.  There is likely some type of anti-rust 
coating on there but I would not attempt to duplicate it.  The inside of 
Chevy V8 oil pans are not painted and they have been around for ages.
The possibility of something coming loose is far too scary...

David Kase
Engineering Manager
PDQ Industries
717-656-4281
717-656-8749 (f)
www.pdqlocks.com



SJ wrote:

>My 90 100q is leaking oil.
>
>The leaking seems to be coming from the side of the oil pan itself. The
>outside of the oil pan is rusted to hell, and I think the metal is
>perforated under the rust.
>I have a junkyard oil pan on hand, and I want to paint it. I've cleaned and
>stripped the replacement oil pan in preparation for painting. I noticed that
>the inside of the oil pan looks like it was originally painted. The internal
>sides are mostly bare metal, but the bottom and some of the sides show
>paint.
>
>I want to paint the outside using POR-15. Should the inside of the pan be
>painted also?
>Does water condensation and acidic combustion by-products cause rusting on
>the inside surface? And thats why the inside is painted?
>Any recommendations on prepping and type of paint to use?
>
>SJ
>85 Dodge PU, D-250, 318, auto
>85 Audi 4k - - sold but still on the road
>88 Audi 5kq
>90 Audi 100q
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