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Oil Field Engines & Related Equipment

New Bovaird & Seyfang, and Questions!


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  #1  
Old 05-25-2016, 08:41:38 PM
con-rad con-rad is offline
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Default New Bovaird & Seyfang, and Questions!

Hey all,

I just picked up my first oilfield engine! While i oil all the rusty parts and get a skid built for it, I have a couple questions.

I do know this engine takes a mechanical oiler. Would it have mounted on a separate bracket? there is nothing on the engine for it to bolt to. Also, what kind of oiler and how many outlets would it have?

How exactly does the governor work? there is something that looks like a governor on top of the big casting that the sideshaft goes into, but i also found photos of this engine that has a separate flyball gov:
http://vintagemachinery.org/photoind....aspx?id=15432

Also, the intake has two inlets on it, on the back side of the box facing towards the crank. It might be obvious to me once i take it apart, but what is the purpose of each inlet?

That's all i have now... more questions to come. Thanks!

Conrad
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  #2  
Old 05-26-2016, 06:40:27 PM
con-rad con-rad is offline
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Default Re: New Bovaird & Seyfang, and Questions!

I also am looking for an exhaust flange, rod cap, and oiler if anyone has one.

Conrad
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Old 05-26-2016, 10:26:42 PM
W.P.Klein W.P.Klein is offline
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Default Re: New Bovaird & Seyfang, and Questions!

Wow Conrad - that is one interesting engine! I have never had the pleasure of seeing one like it before. I am sure there is a rotary flyball governor inside the housing but my question is "what does it act on"? Must be intended to govern the intake in some way, perhaps in conjunction with the strange intake box.
The sideshaft box obviously has a mount on top for an OC magneto.
Congrats on a very cool specimen! Bill Klein
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Old 05-27-2016, 05:50:26 PM
con-rad con-rad is offline
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Default Re: New Bovaird & Seyfang, and Questions!

WPKlien,

When i saw you responded, I said to myself, "oh, with all the engines he brings home, he probably has a complete one and can answer all my questions!" but i guess i was wrong! that's cool that i have a unique engine though!

I looked more closely at the very top of the "governor" housing, and i barely saw "peerless" written on it, which i think is a governor maker? But i agree, what does the lever "act on"?

I do believe it takes an OC mag, which i am also looking to buy if someone has one.

I did open the rectangular cover plate below where the mag mounts, there is a big cam that operates the mag, and an interesting flyweight mechanism that acts in conjunction with two small knobs that come out of the housing. I'll take photos tomorrow.

conrad

---------- Post added at 05:50:26 PM ---------- Previous post was at 05:43:36 PM ----------

oops, i meant "pickering", not peerless for what's cast on the gov housing.
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Old 05-27-2016, 08:52:58 PM
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Brian Lynch Brian Lynch is offline
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Default Re: New Bovaird & Seyfang, and Questions!

I think that box has a reed valve in it. I've heard about the old style feather valve Boviards. I vaguely remember seeing one back in the early 1970's. It was in a power I stumbled across while small game hunting. Peeked in the window at the engine. Looked a LOT like this style.
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Old 05-28-2016, 04:14:38 PM
con-rad con-rad is offline
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Default Re: New Bovaird & Seyfang, and Questions!

I was going to wait until i had a skid to start work on this engine, but i couldn't resist!

The intake box consists of what looks like a grill grate, with a number of steel reed valves. one of the reed valves has three springs behind it pushing up instead of two, and that seals the gas intake slot. both 1"NPT holes supply gas to the same gas inlet reed valve slot.

The rectangular cover on the mag trip reveals a large cam. there is also a flyweight that somehow acts on (possibly) some sort of a slider unit that is activated by one or both (?) of two knurled knobs, for some unknown purpose.

The pickering governor is made about 30 minutes away from where i live in portland, CT. it's belt driven off the sideshaft. It has an 1/8"NPT port on the top to accept an oiler or a feed line from the mechanical oiler.

I'm making a video series too, those will be up soon.

again, if anyone has a rod cap exhaust flange, oiler, or other parts, let me know!

conrad
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Old 05-28-2016, 04:38:20 PM
con-rad con-rad is offline
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Default Re: New Bovaird & Seyfang, and Questions!

Here is a photo of the knurled knobs that attach to the hooziewhatshit.
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