Parsell & Weed Horizontal IC Engine

[b.lindsey]

Duly noted Zee    And thanks for looking in.

Bill

[Don1966]

Bill that's really looking the part buddy.........

Don. 

[Flyboy Jim]

Looks nice Bill,

5 nipples in the tank...............that's going to be a busy tank!  I'll be curious to see what they all hook to.

I like the new oiler and agree that it will look even better cut down in height.................not that I know all that much about oilers! 

Jim

[b.lindsey]

Jim, the two 3/16" nipples on the upper end of the tank are for the coolant lines to and from the water jacket. The 1/8" nipple directly below those two is at the bottom of the fuel section of the combined tank(s) and is the fuel out connection to the mixer. On the opposite side of the tank but still in the fuel section there are two 1/8" nipples side by side. My assumption is that one is for filling the fuel tank and the other provides venting during the fueling operation as well as an overflow outlet. Otherwise fueling would pressurize the tank. That's my take on it.

Bill

[b.lindsey]

So far today I have been working on finishing up the tank base/mount. I centered the rotary table on the mill and with the base upside down in the lathe chuck I mounted it to the RT. I used the small Starrett square against the vertical mill way to line up as close as I could eyeball two 1/8" pins in the mounting holes (photo 1). It turned out that the mill table was at 196 degrees and the plans call for a +/- 29 degree rotation (using a 1/4" end mill) to each lug. Just to keep me straight, I wrote down the 196 degree position and the other three positions 90 degrees advanced from that to define the center point between each pair of lugs. Then I added and subtracted 29 degrees to each center point to define the limits of rotation for each of the four sides (photo 2). I milled about .015" per pass working all the way around until the final finished diameter was reached. In total .188 was removed from each arc. The result is shown in photo 3 and as can be seen in photo 4, the base now fits neatly within the width of the wooden crosspiece it will fit on. Still remaining is to round over each of the lugs.

Bill

[Dave Otto]

Nicely done Bill!

I'm still quietly following along here; I have wondered about the purpose of the cone feature in the bottom of the tank?

Dave

[Don1966]

Nice work as usual Bill.  I can see that calculations gets you to the coordinates you are looking for, but on my table I can zero the table when ever I want to. There is a set screw to do this. Can yours do the same and I am just curious bud.

Don

[zeeprogrammer]

Very sharp Bill.

I'm wondering about that cone feature too.

[chrisinestes]

Just signing on to the thread...

I saw a set of plans for this engine on eBay, and was advised of this build thread. Nice looking models.

Chris

[b.lindsey]

I am not sure about the cone either to be honest. I put it on the inside but didn't add it to the bottom. Couldn't see any need to. Neither will ever be seen anyway. 

Don, the sherlune RT does not have that feature unfortunately.

Bill

[Don1966]

I am not sure about the cone either to be honest. I put it on the inside but didn't add it to the bottom. Couldn't see any need to. Neither will ever be seen anyway. 

Don, the sherlune RT does not have that feature unfortunately.

Bill

I think the cone in the bottom helps to keep the bottom empty when it gets there. No lingering of fluid in the bottom of your tank, because the is not enough surface area to settle.

A shame your sherline doesn't have the provision Bill, sure makes life easier.

Don

[littlelocos]

I think the cone in the bottom helps to keep the bottom empty when it gets there. No lingering of fluid in the bottom of your tank, because the is not enough surface area to settle.

Don,
Ding-Ding-Ding-Ding -- that's it!
Todd.  :-)

[zeeprogrammer]

I think the cone in the bottom helps to keep the bottom empty when it gets there. No lingering of fluid in the bottom of your tank, because the is not enough surface area to settle.

That one goes in the notebook. Neat!

[b.lindsey]

That is what I had assumed, Todd, but what about the underside?

Bill

[littlelocos]

Bill,
Other than lightening the part, it's purely "decorative".

If it were a casting (and it may someday be), it would keep the section thickness uniform and prevent shrinkage voids.

Todd.