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Re: (ET) Mower Musings



I still say bite the bullet and hot dip galvanize it. And any other parts you can get apart, esp maybe the battery box. I did my front deck more than 10 years ago, and I never clean it, and it is just as nice as the day I did it. No rust, no problems.

Harry Landis

> From: etpost drmm net
> To: elec-trak cosmos phy tufts edu
> Date: Thu, 20 Jun 2013 13:13:20 -0400
> Subject: (ET) Mower Musings
>
> One of the mower motors on my Avco R36 rider has gotten noisy, so it's time
> for a refurb. I've pulled the deck and torn it down. Two questions come to
> mind.
>
> QUESTION 1: mower motors. I've successfully changed lower bearings in mower
> motors before, but I remember that for some reason I failed with the upper
> bearings. I don't recall why (it was at least 10 years ago). I don't own a
> press. Anyone have any upper-bearing-changing tips?
>
> I'm also concerned about the potential for breaking a magnet. These motors
> are a different size from any I've seen used in front-deck ETs, so they're
> probably more scarce. How much risk is there?
>
> Should I be cautious and instead take the motors to a shop? I had the drive
> motor bearings changed by a local auto electric shop a while back and they
> seemed to do an OK job, thoiugh it was a tad pricey, and they used some
> bearing brand I'd never heard of.
>
> Further comments? Thoughts?
>
> QUESTION 2: Last time I had this deck apart, I ground the rust off and hit
> it with an etchant, then painted with "appliance epoxy." That was a bust.
> Rust remained in pits and the rust soon pushed right through the paint.
>
> Last time I did a (different) mower deck, I had it sandblasted. I sprayed
> the top with rattle-can enamel, then used two-part primer and topcoat on the
> underside. (You have to be careful and work outside with a box fan - the
> fumes are deadly!)
>
> That seemed to stand up better, but in truth I'm not sure. I almost never
> use the front mower any more (I like the Avco rider better for mowing), so
> it hasn't had a real test.
>
> Over the years I've read some other ideas on this list - POR-15, I think
> powder-coating (someone at work suggested that too), and even galvanizing.
>
> Has anyone tried powder-coating a well-worn mower deck? How well did it
> stand up?
>
> I know we have some POR-15 advocates here. I've never used it, but just
> about fainted at the price. Some say you can brush it right over rust, but
> I really want this deck sandblasted. Would it be pointless to use POR-15 on
> clean metal? Does it need a primer on clean metal?
>
> What about POR-15 over powder coating? Something else?
>
> And - is POR-15 really all that durable? Will it last for, say, 5-10
> seasons of mowing?
>
> It's also nice if it's not too sticky and the grass is easy to scrape off (I
> use a plastic windshield scraper).
>
> What's worked LONG TERM for you for protecting mower decks?
>
> Thanks.
>
>
> David Roden - Akron, Ohio, USA
>
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