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Vintage Diesel and Oil Engines Fairbanks Morse, Lister, Petter, Witte and other pump injected Diesel oil engines.

Vintage Diesel and Oil Engines

P&H Harnischfeger Diesel Engine


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  #1  
Old 11-09-2016, 03:24:18 PM
little big man little big man is offline
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Default P&H Harnischfeger Diesel Engine

Greetings to all. Here are some pictures of my P&H diesel engine, model number 387c-18. It is a 3 cylinder 261 cubic inch rated 90 hp supercharged engine. It has a Roosa master injection pump, and a schwitzer supercharger. It also came with a GM power take off model PTA 11126. Dry weight is 1360 lbs.

Any and all info on this engine would be greatly appreciated and if anybody out there should happen to have a service and or operators manual that i could copy or download, that would be greatly appreciated. Thanks for looking, i hope you enjoy, l b m, more pictures to follow
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Old 11-09-2016, 03:58:13 PM
little big man little big man is offline
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Default Re: P&H Harnischfeger Diesel Engine contd. pictures

Enjoy, l b m
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Old 11-09-2016, 04:05:42 PM
little big man little big man is offline
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Default Re: P&H Harnischfeger Diesel Engine pics. contd.

Last 4 pics. thanks for looking. Anybody out there with any knowledge at all, I would appreciate it. Size of radiator I will need, fan and etc. hope to hear from some of you, thank you all, l b m
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Old 11-09-2016, 04:54:23 PM
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ListerDiesel ListerDiesel is offline
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Default Re: P&H Harnischfeger Diesel Engine

While I had the book out for answering the Sheppard diesel post, I looked up this one as well.

Described as being designed and built for the excavator market, they were made in 3 and 6 cylinder format.

Bore of 4.5" and stroke of 5.5", swept volume of 261cu in and 522cu in.

Continuous power 60 and 120 hp at the relatively low speed of 1200rpm, intermittent power was higher.

They are 2-cycle engines with the individual liners carrying one head per cylinder.

Individual injection pumps like the Lister CS and JP engines.

Hope this is of some use to you.

Peter
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Old 11-09-2016, 05:29:58 PM
Bill Hazzard Bill Hazzard is online now
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Default Re: P&H Harnischfeger Diesel Engine

That is not a supercharger, it is a scavenging blower used to clear the products of combustion and introduce fresh air into the cylinder. Most any automotive radiator will work. It is an interesting engine, it is the first one I have seen like it.
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Old 11-09-2016, 07:55:10 PM
popeyeje popeyeje is offline
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Default Re: P&H Harnischfeger Diesel Engine

That is fantastic!

Best of luck getting all you need to get up an running.
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Old 11-09-2016, 08:01:14 PM
enginenut2 enginenut2 is offline
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Default Re: P&H Harnischfeger Diesel Engine

In picture 10 the square plates you see were where the individual injection pumps, actuated from the camshaft mounted, as Peter said. These had an external rack which greatly complicated the external appearance and would probably have been interesting to properly synchronize and keep clean. Volume 19 of "Diesel Engine Catalog" (1954-1955) showed the individual pumps, Volume 20 (1955-1956) pictured the Roosa Master pump. Volume 24 (1959) showed your 3 cyl model c-18 allowing a maximum HP of 144 @ 1800 RPM--torque of 336 FT.Lbs @ 1300. Same volume shows the P&H engines carrying the Fairbanks-Morse name as a model 49B4 1/2 and they had a Turbo charged 3 cyl version rated only 115 HP. Individual cylinder heads and liner assembled was said to be removable in 40 minutes. Aluminum crankcase and cylinder block kept the weight down. Single sodium cooled exhaust valve. The 6 cyl was highly advertised as a truck engine and used 2 scavenging blowers of 3 cyl size.
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Old 11-09-2016, 08:11:15 PM
K-Tron K-Tron is offline
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Default Re: P&H Harnischfeger Diesel Engine

A few months ago I was looking into purchasing a P&H 687C-FS, a six cylinder version of the engine you have. After consulting with several old timers that I knew from the Detroit Diesel crowd, I learned that the P&H diesels were prone to a lot of issues which came down to their unique metallurgy. P&H used aluminum blocks, unlike the successful Detroit Diesel engines. The water jacket supposedly runs right down to the taper in the block where the steel liners are fit. If the approved antifreeze treatments were not used, the aluminum block would corrode so badly that the rubber liner o-rings would be compromised in short order. I was told to stay away from it if I found coolant in the oil. As you can imagine coolant in the oil supply destroys engine bearings and can cause a real expensive mess. I unfortunately let that 687C slip away, as I had no way to fetch it. In hindsight, if cavitation and corrosion were really that much of a problem, a TIG welder and a good machine shop could have likely welded up and turned new sealing surfaces in the block. I kick myself from time to time for letting it get away. They are such unique looking engines. I hope yours is in good order. It would be so sweet to hear it chug away once again!

Chris
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Old 11-10-2016, 02:55:20 AM
Bud Tierney Bud Tierney is offline
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Default Re: P&H Harnischfeger Diesel Engine

LBM---search Harnischfeger (is that correct?? I thought there was a 'p' in there??) here...there're old threads, one of which says the leaking O-rings can be avoided (or possibly just the leakage into the oil?) by draining after running...
Very few notes but do show four series of engines 287s, 387s, 487s and the above mentioned 687s, but no cyl count...have a few Diesel catalogs downstairs, will check in AM...
Believe old threads state P&H doesn't acknowledge existence, not considered shining part of Co history per owners unhappiness with water/oil leaks, but described as quite advanced for their time...
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Old 11-10-2016, 03:11:32 AM
Thaumaturge Thaumaturge is online now
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Default Re: P&H Harnischfeger Diesel Engine

Boy that is a beast! I'd get that into a DIY stump puller tractor right away.
Doc
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