The Ford Barn

Pete · 08-27-2023, 08:02 PM

Here is something to do when you need some brain stimulation.

Figure out what type of engine this cam grind went in.

This pic was of one of the prototype we used in tooling development for the cam grinder.

The cam grinder was a model 75 Storm Vulcan.

petehoovie · 08-27-2023, 08:54 PM

Quote:

Originally Posted by Pete

Here is something to do when you need some brain stimulation.

Figure out what type of engine this cam grind went in.

This pic was of one of the prototype we used in tooling development for the cam grinder.

The cam grinder was a model 75 Storm Vulcan.

Fordors · 08-29-2023, 01:18 AM

I think it may be a camshaft for a diesel with unit injectors. A low pressure pump feeds the injector and the cam lobe follower on the injector squeezes the fuel in the injector to atomize it. If it was an OHC engine the injector could spray the fuel directly into the cylinder eliminating high pressure fuel leaks.

Pete · 08-29-2023, 02:37 PM

Quote:

Originally Posted by Fordors

I think it may be a camshaft for a diesel with unit injectors. A low pressure pump feeds the injector and the cam lobe follower on the injector squeezes the fuel in the injector to atomize it. If it was an OHC engine the injector could spray the fuel directly into the cylinder eliminating high pressure fuel leaks.

Not diesel.
Clues:
Runs on cheap gas.
High pressure injectors.
OHV V8.

petehoovie · 08-29-2023, 03:01 PM

Trying to figure out why the lobes are so thin...And, lobes are stepped...

Pete · 08-29-2023, 03:04 PM

Sponsored Links (Register now to hide all advertisements)

Quote:

Originally Posted by petehoovie

Trying to figure out why the lobes are so thin...And, lobes are stepped...

Roller cam.
Not stepped. Inverted flanks to increase lift velocity.

Also, narrow lobes and lifters to fit in the available space.

petehoovie · 08-29-2023, 03:34 PM

3 valves....Hmmmm...

Pete · 08-29-2023, 03:36 PM

2 valves.

38 coupe · 08-30-2023, 07:51 PM

Given the name of the picture (cheating, I know), is it related to Bruce Crower's 6 cycle engine experiments?
https://www.autoweek.com/news/a20632...stroke-engine/

Pete · 08-30-2023, 10:42 PM

Quote:

Originally Posted by 38 coupe

Given the name of the picture (cheating, I know), is it related to Bruce Crower's 6 cycle engine experiments?
https://www.autoweek.com/news/a20632...stroke-engine/

Yes, it is the similar principle. We were doing this back in the 60's and I talked to Bruce shortly before he died and he was using water injection for steam. There is a lot of info on the internet about his version. We injected gas.

Pete · 09-07-2023, 11:10 PM

6 cycle Pontiac engine.

This engine was developed for small one or two man mining operations and was intended to be air lifted in to the site by helicopter. It was mounted on a steel skid along with an attached air compressor, power generator/welder and cable winch. Assorted tool boxes, storage boxes were also attached.
The engine was basically a 421 Pontiac V8. It differed from stock in that it was of 6 cycle design rather than 4. This was to get more hp at low RPM without increasing the weight and size of the engine. They wanted to keep the RPM down for extended longevity. It worked extremely well.

The engine used all stock parts inside except the pistons and cam assembly. The block was cast special and several 4 cylinder versions were cast up also for future development. These were tried in various applications but never developed enough HP per weight.

First off, the cam in this engine turned 1/3 engine speed rather than half as normal.
The way this worked was, normal intake stroke, normal compression stroke, normal spark ignited power stroke, exhaust stroke but both valves stay closed, fuel injection
compression ignition stroke, normal exhaust stroke.

6 cycle engines with several variations have been around since the 1800's. Some used air injection for the extra cycle, some used water as in Bruce Crower's single cylinder model and some use various fossil fuels as the one we built.
An internet search for "6 cycle engine" will get you more than one evening of reading material about them.

08-29-2023, 01:18 AM	#3
Fordors Senior Member Join Date: May 2010 Location: Orland Park,IL Posts: 1,402	Re: What is it? I think it may be a camshaft for a diesel with unit injectors. A low pressure pump feeds the injector and the cam lobe follower on the injector squeezes the fuel in the injector to atomize it. If it was an OHC engine the injector could spray the fuel directly into the cylinder eliminating high pressure fuel leaks. __________________ My school colors are black and blue, I attended the School of Hard Knocks where I received a Masters Degree in Chronic Mopery.

08-29-2023, 03:01 PM	#5
petehoovie Senior Member Join Date: May 2015 Posts: 8,156	Re: What is it? Trying to figure out why the lobes are so thin...And, lobes are stepped... __________________ The only thing nice about being imperfect is the joy it brings to others.... *"Silver rings, your butt! Them's washers!"* "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0

08-29-2023, 03:34 PM	#7
petehoovie Senior Member Join Date: May 2015 Posts: 8,156	Re: What is it? 3 valves....Hmmmm... __________________ The only thing nice about being imperfect is the joy it brings to others.... *"Silver rings, your butt! Them's washers!"* "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0

08-29-2023, 03:36 PM	#8
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,409	Re: What is it? 2 valves.

08-30-2023, 07:51 PM	#9
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 1,631	Re: What is it? Given the name of the picture (cheating, I know), is it related to Bruce Crower's 6 cycle engine experiments? https://www.autoweek.com/news/a20632...stroke-engine/

09-07-2023, 11:10 PM	#11
Pete Senior Member Join Date: May 2010 Location: Wa. Posts: 5,409	Re: What is it? 6 cycle Pontiac engine. This engine was developed for small one or two man mining operations and was intended to be air lifted in to the site by helicopter. It was mounted on a steel skid along with an attached air compressor, power generator/welder and cable winch. Assorted tool boxes, storage boxes were also attached. The engine was basically a 421 Pontiac V8. It differed from stock in that it was of 6 cycle design rather than 4. This was to get more hp at low RPM without increasing the weight and size of the engine. They wanted to keep the RPM down for extended longevity. It worked extremely well. The engine used all stock parts inside except the pistons and cam assembly. The block was cast special and several 4 cylinder versions were cast up also for future development. These were tried in various applications but never developed enough HP per weight. First off, the cam in this engine turned 1/3 engine speed rather than half as normal. The way this worked was, normal intake stroke, normal compression stroke, normal spark ignited power stroke, exhaust stroke but both valves stay closed, fuel injection compression ignition stroke, normal exhaust stroke. 6 cycle engines with several variations have been around since the 1800's. Some used air injection for the extra cycle, some used water as in Bruce Crower's single cylinder model and some use various fossil fuels as the one we built. An internet search for "6 cycle engine" will get you more than one evening of reading material about them.