No silicone that I saw…..
You can buy it from a dealer locally at less cost…. $8/can here. I like the spray kit they offer and may go that way.
…Walt
From: Pestka, Dennis J [mailto:Dennis Pestka Covidien com]
Sent: Thursday, June 20, 2013 2:43 PM
To: Rod Hower; Konstanty, Walter (GE Energy Management); elec-trak cosmos phy tufts edu
Subject: RE: (ET) Mower Musings and Fluid Film
I wonder if it has silicone in it ?
Is so, be careful around your motor brushes.
Thanks;
Dennis
Elsberry, MO
http://www.evalbum.com/1366
http://www.evalbum.com/3715
It had pretty good reviews at Amazon (I suppose a few of the reviews are actually real).
Kind of pricey at $14 for a 11oz spray can, but it looks like people are using it for just about everything, including battery posts.
I ordered a can just out of curiosity.
David,
A mechanic friend of mine turned me on to "Fluid Film" rust preventative..... he uses it on cars and it is a "natural" product like WD-40. It was developed during WWII to protect ship steel from rusting along with guns, etc.... it's a wax based substance
and actually gets absorbed into the metal. It's also non-conductive and can be used on electronics. Almost too good to be true but it works.
http://www.fluid-film.com/
As far as changing bearings, be careful and you can do it. Be careful pulling the rotor out. I changed some on a small motor last night and cut the inner race off with a cutting wheel so I didn't wreck the commutator. No problem.
...Walt
-----Original Message-----
From: David Roden [mailto:etpost drmm net]
Sent: Thursday, June 20, 2013 1:13 PM
To: elec-trak cosmos phy tufts edu
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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