Pretty neat the way this system works.

Cat site

I've got a friend that works at Richard Kerns Truck Parts in Forest Park, Ga Richard Kerns site and he was telling me about the way Caterpillar does it and I figured I'd look it up and have attached what I found. Seems to be a pretty interesting set up. My friend also indicated that Caterpillar has done alot of research into solenoid actuated valves. All my friend does there is rebuild Caterpillar engines for resale.

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Jim

Pretty cool! No high pressure lines running all over the place.

I was around an old diesel engine once (Forget who made it, Wakesha maybe?) that used a similar system that was all mechanical. It used rockers that actuated hi-pressure injectors at each cylinder. I don't think it had an IP, just these big rocker driven IP/injector deals.

It made me wonder why it wasn't more common.

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My occupational hazard bein'
my occupation's just not around...
1980 300SD
1980 300SD

looks like the Ford powerstroke system. Works great until you have problems with the high pressure oil system.

Paul

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84 500 SEL (307,xxx miles)

My scraper has a 3408 at the front & a C9 at the back, about 750 hp in total. Also have a 12H road grader. Cat are super reliable & over engineered. Have never had an injection system problem. The system is not that different to the old GM 2 strokes, have 1 of them as well. Admittedly they do it all electronically rather than with an extra cam lobe. As long as you dont mess with aftermarket parts, they appear to go for ever. They appear to be the last of the draft horses not phoneys.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

You are correct. This is the same technology in my F350. My '97 has the International Navistar with HEUI and it runs great! Even on Bio Diesel.

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Best Regards,
Jeff L

1984 300SD 247K+ miles - single tank w/ heat exchanger to run WVO - sold
1997 Ford F350 7.3L International turbo diesel crew cab with 100 gal transfer tank to hold B100
1995 E300D 245K+ miles running BioDiesel - my daily driver

Live Long and Prosper

You're probably thinking of the Detroit Diesel 2-stroke/2-cycle engines, 53, 71, and 92 series. They used a low pressure delivery pump to fill a fuel rail built into the cylinder head, then to a line to each injector. The injector incorporated a piston that would pressurize the fuel using a push rod and rocker driven off of the camshaft, and inject the fuel directly into the combustion chamber. Excess fuel would come out of the injector through another line to a return fuel rail, then back into the tank. This system may have been used on later Detroit 4-strokes, but not sure.

How did they do timing advance with that system? Or did they just use static timing optimized for one particular cruising speed?

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1981 Mercedes 300TD, 1994 Honda Civic Del Sol
http://mefi.us/images/fuelly/smallsig-us/67195.pnghttp://mefi.us/images/fuelly/smallsig-us/103885.png

CAT and FORD developed the injector system together. CAT used to be a primary supplier to FORD for its injectors until Ford decided to go it alone.

Cat over the years has used about every kind of fuel system there is.This HEUI is just the newest brought on by the more strict EPA regulations.
Iwas not aware that Ford manufactured any injectors,what year/engine did they start that?

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Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles

is this simular to the system they had in the 6.0L ford diesels too? It's an impressive system, but I diddnt like that you had to remove the rocker covers to maintain them if something did go bad, how it was on that ford anyways. but it's still a cool system,

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

HEUI is not all it's cracked up to be. The concept is interesting but the injectors are complex and horrendously expensive. It also requires a ton of engine oil. Injection pressure tends to fall on it's face at higher fueling levels/RPM's.

HPCR is really the way to go.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

IIRC, Cat and International developed that system, which was the cat's behind in its day. Ford was merely one of the end users with its assorted versions of the Power Stroke engine.

Kar Tek is correct, the HPCR is a much better system, witness its use in almost every modern diesel made today.

The high pressures also sheer the oil very quickly, so you get to change all 4 gallons every 5,000 miles

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

Yeah, 4 gallon oil changes and $13 filters adds up to a $100 oil change...

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

the 2 cycle detroits do not have any timing advance mechanism. The 71 and 92 series are normally limited to 1800 rpms, for industrial applications.

Cummins also used a third rocker arm to pump the injector on the early engines.

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1977 240D turbo