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Posts posted by Joseph Cummings
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My engine brake is always on once engine reaches 150 degrees
And very rarely use the brakes. I can go from speed to 15 mph with engine brake without touching the brake pedal for a red light.
You know when I started somewhere around 1980, we didn't really have Jake Brakes on anything. All the tractors were pretty bare bones ex Chemical Leaman and Matlack, 237, 5 speed, no power steering or AC. The dumps and roll off trucks were all DM600 227 6 speed, 55 rears and bare bones too.
I really never had anything with a Jake until I was working as an O/O for McHugh Brothers and I had to move some stuff I needed their 4 axle Autocar for
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I've really only run local. Before I moved to Hazleton, I ran mostly Philly, NJ, NYC and in the suburbs . It's all pretty flat, And I'm not running through Manhattan and Center City Philly Jakeing like an idiot
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Should have explained this a bit better...the turbos on these engines are gear driven up to 400 RPM then the clutch sets them free to spool up...when revs drop below 400 RPM its back to being gear driven..
Paul
It's a 1988. Cummins Big Cam IV that I built and put a bit of extra fuel to so I really can't give you a CPL or Horsepower, Fuller 12509, 38 rears on Hendrickson.
The other one is this 1986 R686ST, all factory stock 125,000 miles. Endt676 engine (285), TRXL107 six speed, 38s on Mack Camelback
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Yeah I never use my jake much either. I have a little hill in front of my shop, maybe 1000 feet long at most, guys jake down it with straight pipes all day long. Yeah it's a business district, but the speed limit is only 25. Me and the rest of the old timers here on the hill just shake our heads. They even jake down it empty.
That being said, you can install a Jake on an END673, or even a Mack Dynatard if you change the cam
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Yes, but I like my gears. It runs really well with my triplex and splitting the top gears. Right or wrong. Plus, in the event I happen to come up with more motor I have the options available with more gears. I'd rather skip gears then someday need them and not have them.
What do you pull with this tractor? A car trailer?
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I put the 237 in about 7 yrs ago.
You know a 237 Maxidyne only needs 5 gears. Why not just put a TRL107 Maxitorque in it? Unless your rear is real low and you need an overdrive. 237 Maxidynes only came with either a 5 or a 6 speed from the factory
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What engine are you using?
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I had a float come apart on the steering axle of a boom truck on the Jersey Pike. It tore pretty much the whole right front fender off, ripped the brake hose, and it bent something I had to fix back at the shop, but I forget what. I wouldn't want to get hit by one
Years later my buddy the same truck on the TP in Ohio and blew a float and he rolled the truck, Tore the Simon -RO 23.5 ton boom right off the truck. He had to kick the windshield out to escape. It was late at night and the first thing he does is call me with his adrenaline pumped through the roof, talking fast as hell in his Jamaican accent. Lots of Bloodclaat and pussyclaat lol
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Great pics.We had a small fleet of yard locos like those but were built by the railway company in their own shops.think they had Dortmann engines(German) but they were not a great sucess.They were before my time driving.The tilt and slide trailer is a nice bit of kit.Is that an R model hooked up to it? Yours?
Paul
LTL9000 Ford, Big Cam Cummins. Yeah It's mine, Sitting in in my garage right now
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Yes,the turbo clutch cuts the turbos(theres two)out above 400 RPM.Works on oil pressure I'm told...
Paul
Yeah I don't have much experience with locomotives other than some little 44 ton units, and were all HB600 Cummins or Detroit diesel powered. Truck engines really.
My old employer had a thing for short lines. The "M" in SMS is for McHugh.
I use to move a lot of MOW equipment and Car movers like trackmobiles with my Trail King trailer
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EMD 12V710
Is that the one that has the turbo with a clutch to spin it up mechanically for starting?
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Thanks. I have seen that. My question is the depth of the bell. That seems to be never mentioned. Does that change for just certain set ups?
I think the depths are the same , but I can't be positive about that. I haven't had a mack with a single plate clutch apart in like 40 years. Do you have the transmission you want to use yet? I've put roadrangers in macks that had double plate pull clutches like a spicer angle spring with the 2 inch input shaft. I know on one of them I got the parts from Tony DeSandro at Ace Auto Parts in Bensalem Pa. I know he knows what parts fit what. There is a guy Herman at US truck parts right outside of hazleton who is pretty good too, but english is his 2nd language so I do better just going to his place and talking in person. Both those guys are exporters so they deal with a lot of mack stuff
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It was bought new by George Racho/South Tamaqua Coal Pockets with V8 mack power and being it was the early V8 they had problems with it. It went back to Craig Motors the Mack dealer across the street and somehow they agreed to repower it with a 1693 Cat. Sometime after George died, it got sold to Joe LaTona of Pittston. Joe passed a few years ago and the truck was sold again, but I don't know who bought it.
The picture of it where it's red is actually in my back yard (I bought George's shop) the green picture is after Joe Latona restored it
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They made a clutch brake for a mack push clutch, it had a lever that went down and pushed a disc against the counter shaft. Terry
Yeah for the CL50 clutch. The clutch brake was on the countershaft. You had to adjust that clutch by taking out shims when it wore down, then adjust the linkage, and then there was an adjustment bolt for the clutch brake. I had two like that that were 1960s One had a TRL107 trans and the other a TRXXL107 the two stick with the super low first. You found them in mixers a lot, they were great for doing curb pours. Both those clutches held up really well
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I had a small cam SAE #1 that had 3/8" bolt holes, but I doubt it was as old as 1953? Came off a CPL 150 small cam engine.
Yeah, I seem to remember working on sixties stuff that were 3/8
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We used to rent McHugh’s trailer from time to time.They were really nice people.
Yeah they are. I used to stay in touch with Adelaide and her Husband Terry from Tulea, but I haven't heard from them in maybe 5 years. They always treated me really well. Tulea closed up, Terry said they had nobody to take it over, they must be well into their 70's now
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My car stuff is one and done. This is all Chinese to me. I get sae # 1 or 2. Does 1 mean single disc? #2 dual disc?(Besides other size changes).
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I'm new to this thread. But why are you putting yourself through all this aggravation? Why not just fix whatever is wrong with your triplex?
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I dunno about your math, a lot depneds on how long the time is going to be for recharging
Paul
Well if you are going to charge a one megawatt hour capacity battery pack in one hour, you need one megawatt of supply. If you want to do it in 2 hours you need 500 kilowatts. And I'm not even figuring on losses. Basically a 1200 amp 480 volt three phase circuit to every charger. And the damn chargers must have a transformer in them, so now you have a problem with "low lagging power factor". And they also have to have rectification to turn the AC into DC. so there is going to be a problem with harmonics. Just like the problems with harmonics we are having in the plants now that all the motors are on VFDs. It distorts the sign wave all to hell. Large data centers have the same problem because of the rectification in the computer power supplies. It's a dam expensive problem to fix. And it's not a problem that is contained in your facility. It gets so bad that it affects the power company's distribution circuits. You might be causing a harmonic problem, and I'm 1/4 mile down the road, and all of a sudden my electric motors start overheating. There are just too many problems, and we are talking on a huge scale
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The 3412 is a beast of an engine for that Bulldog! Shame it's in pieces, I'd love some videos of that beast running. It's like the American equivalent to the last Pacific truck ever made, a P12W3 with a 3412 Cat, built in the parts warehouse. Some interesting videos of the truck being tested after completion on Youtube.
I'm really surprised they got enough cooling under the hood of a RD800 for a 3412. Every 3412 I've ever seen has a huge radiator
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My 1959 B61T restoration/modification build thread
in Antique and Classic Mack Trucks General Discussion
Posted
I 100% agree. Cab swaps don't work out like they do in youtube videos. And those video guys never show how much of their poorly engineered modifications break when they are actually driven.
The only thing I have a different opinion on is, Leave the end673 in it. Put some fuel to it and even though it's a 9 millimeter pump, it will make all the power you'll ever need