Disection and repair of a Axeman-Anderson 260m

Re: Disection and repair of a Axeman-Anderson 260m

PostBy: LsFarm On: Wed Oct 15, 2008 8:53 am

The problem was not the gasket,, but the 'wet bolts' the studs threaded into the boiler end plate were threaded with pipe threads and installed with sealant.. but the expansion and contration of the boiler from heat cycles tended to loosen the studs, then the nuts and studs leaked, then the gasket got loose and leaked..

The new instalation has the bolts clamping the gasket 'dry'.. only the gasket is 'wet'.. and with a new piece of gasket material and a very thin layer of RTV, it will never leak..

I sealed my studs with RTV, and sealed the rusted/sandblasted boiler surface with my favorite RTV, sealed the stud's threads and nuts and washers.. all nice and neat.. and not a drop after several hot/cold, a summer shutdown and fall re-light...

A nice molded recessed rubber 'O-Ring would be nice,, but the production rate is low, the production cost high, and I would not want to be paying $100+ for a fancy O-ring...

Greg L

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LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Disection and repair of a Axeman-Anderson 260m

PostBy: U235a4 On: Wed Oct 15, 2008 9:08 am

LoschStoker wrote:AA got the coil flange build out idea from Orbie Pepley of Shippensburg,PA.
He's been doing it that way for 30 years.


I have a hard time Believing this since I've seen Orbie's work on AA units and it's not the greatest.
U235a4
 
Stove/Furnace Make: 1958 Axeman-Anderson
Stove/Furnace Model: 260M

Re: Disection and repair of a Axeman-Anderson 260m

PostBy: coaledsweat On: Wed Oct 15, 2008 10:56 am

I don't think Orbie is doing the flanges at the A-A factory, they just used his idea of the extermal flange.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

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Re: Disection and repair of a Axeman-Anderson 260m

PostBy: Matthaus On: Wed Oct 15, 2008 11:03 am

Yanche wrote:And any junior in a "B" grade mechanical engineering school can design a better gasket system than squeezing a piece of rubber between two flat plates!


:lol: :lol: yeah and almost all of the boilers today use that old method. :o

Meanwhile all you have to do is take a close look at any number of items on the AAs to see areas for improvement. Of course how many products do you know of that can literally be handed down through 4 generations!? ;)
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite

Re: Disection and repair of a Axeman-Anderson 260m

PostBy: Yanche On: Wed Oct 15, 2008 10:48 pm

LsFarm wrote:A nice molded recessed rubber 'O-Ring would be nice,, but the production rate is low, the production cost high, and I would not want to be paying $100+ for a fancy O-ring...
There's no need for custom gaskets. Supper dupper O-ring material comes like rope. You cut the length you need and glue it together. I'm just trying to point out that just like the RTV vs. traditional pipe dope there's much better ways to do things. It doesn't have to be expensive. The plumbing industry is stuck in ancient times, unlike for example the electronics industry. Good and bad on both sides, ancient or new.
Yanche
 
Stoker Coal Boiler: Alternate Heating Systems S-130
Coal Size/Type: Anthracite Pea

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