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Discussion Starter · #1 ·
I have an ADC 9" motor and need to know what I can do to the motor
housing. Jim H., got yer ears on?

My situation is this. This motor came out of a 20 year old rust
bucket. For the last ten years of it's life it sat idle in a pine
grove, battery acid etching away at the housing. In resurrecting it, I
sand blasted it and painted it's pock marked surface to a nice shiny
red. But not being able to leave well enough alone I decide to repaint
it and thus began my troubles. For whatever reason, the new paint
won't stick despite my repeated attempts at scraping, sanding and
grinding away the old. The surface is very rough with some of the
erosions as deep as 1/8th of an inch.

My question is this, can I machine 3/16" to 1/8" off of the outside of
the motor housing without hurting the motor or messing up the
performance? I'd love to have it machined back to a nice shiny round
condition, but I don't want to do more damage.

Thanks

Dave Cover, Least Coaster in Bob Rice's back yard (sorta)

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Discussion Starter · #2 ·
Hey Dave

That's a lot to trim off honestly. Most of the
housings I've done have a high side that may aproach a
1/16th but just skimming the other side, bringing it
all even.

If I were you I'd start over with a sandblasting and
use something like Rust-o-lium to prevent future
rusting. If you have access to a lathe you might just
try sanding the crude out of it, to even out the bumps
and then try painting it again. I've also had issues
with different paints not liking each other creating a
gooey mess.

Hope this helps, best of luck.
Cya
Jim


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Discussion Starter · #3 ·
From: dave cover
> I have an ADC 9" motor and need to know what I can do to the motor
> housing... can I machine 3/16" to 1/8" off of the outside of the
> motor housing without hurting the motor or messing up the performance?

That's a lot of metal to remove just to make it look nice. I think I would just clean it up, paint it with POR-15 (a great primer for rusty metal), and put a final coat on that. I wouldn't try for a perfect appearance. Heck, the cast iron block of most ICEs is a lot worse!


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"Excellence does not require perfection." -- Henry James
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Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart-at-earthlink.net

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Discussion Starter · #10 ·
I just noticed our good old friend JB Weld brags up to 300F on their
website, but I thought I saw 600F on the package.

On 10/24/07, Dewey, Jody R ATC COMNAVAIRLANT, N422G5G
<[email protected]> wrote:
> If you are worried about the bondo holding up to the heat, use LABMETAL.
> It is mainly used for powdercoating since it is a bondo with metal in
> it. It is made to withstand temperatures of 400 plus so it will work
> fine on your housing.

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Discussion Starter · #11 ·
Yes, JB Weld will work too. I just got done building up a shaft bushing and
machining it for a press fit. It states a temperature rating of 600 F.

Clean the area you want to applied this compound with a fine stainless wire
brush, then clean it with epoxy thinner and use the longer drying time JB
Weld instead of the 5 minute stuff. This will give you a longer spread out
time for a smoother job.

Roland


----- Original Message -----
From: "dave cover" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Wednesday, October 24, 2007 8:05 AM
Subject: Re: [EVDL] Motor housing machining


> I just noticed our good old friend JB Weld brags up to 300F on their
> website, but I thought I saw 600F on the package.
>
> On 10/24/07, Dewey, Jody R ATC COMNAVAIRLANT, N422G5G
> <[email protected]> wrote:
> > If you are worried about the bondo holding up to the heat, use LABMETAL.
> > It is mainly used for powdercoating since it is a bondo with metal in
> > it. It is made to withstand temperatures of 400 plus so it will work
> > fine on your housing.
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
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Discussion Starter · #12 ·
----- Original Message -----
From: "dave cover" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Wednesday, October 24, 2007 10:05 AM
Subject: Re: [EVDL] Motor housing machining


>I just noticed our good old friend JB Weld brags up to 300F on their
> website, but I thought I saw 600F on the package.
>
> On 10/24/07, Dewey, Jody R ATC COMNAVAIRLANT, N422G5G
> <[email protected]> wrote:
>> If you are worried about the bondo holding up to the heat, use LABMETAL.
>> It is mainly used for powdercoating since it is a bondo with metal in
>> it. It is made to withstand temperatures of 400 plus so it will work
>> fine on your housing.
> Hi EVerybody;

IF you are running temps like this you have OTHER issues, beyond a
pretty paint job!Hell! My ADV rarely runs too hot to put yur hand on it!

Bob
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> Internal Virus Database is out-of-date.
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> Version: 7.5.488 / Virus Database: 269.13.28/1023 - Release Date:
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>

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