doubleclutchinweasel
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Everything posted by doubleclutchinweasel
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Starter motor on ENDT-676
doubleclutchinweasel replied to Cedarola's topic in Engine and Transmission
I can't make out all the words, but the stuff in the red oval is all aluminum on the "L" suffix trucks.
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Starter motor on ENDT-676
doubleclutchinweasel replied to Cedarola's topic in Engine and Transmission
Oh, and sometimes cabs and hoods get swapped. The VIN number on the frame might tell a different story. Might really be a 686, for instance. -
Starter motor on ENDT-676
doubleclutchinweasel replied to Cedarola's topic in Engine and Transmission
"RS" prefix should be a Western version of the "R" with a steel frame. "RL" prefix would have been a Western "R" with an aluminum frame. "L" suffix is for lightweight components (check for an aluminum bell housing, for instance). "S" suffix is tandem drive. R685 and R686 would have different engines. Not sure what the HP ratings would be for 1979, but originally (like in 1967) the R685 was the ENDT-675 237HP Maxidyne. R686 was a larger engine (ENDT-676 285-300 maybe?). And, again, the Western versions may have been different on engine specs...I don't know for sure. Most of my knowledge on these things stops in about 1973! -
Kinda neat, too.
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This particular (1965) one is a good reference, because it shows the "standard" configurations of 2 different R600 models, and it has the second page which shows options. You can see the optional engines, transmissions, and clutches...among other things...on the 2nd page. For instance, it shows the ENDT-673C engine option for the R611. Wish I had a bunch of these in person!
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Mack called single-screw models "4 wheel" and twin-screw models "6 wheel". You can see examples of that on the brochures I posted. Most of those 673's had a HP rating on a tag somewhere on the engine. Can't remember if it is on the engine or the pump, though. I'm betting 211 HP, as I think that was the rating on the ones with no other letters after the engine model number.
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This has to be one of my favorites! The newer galvanized cab.
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How about a few components?
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Not sure of the year, but here an R615. I wish some of these had been bigger and better.
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Here is a 1980 brochure on the revised (CA49) cab from a few years back.
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First one from '77 and the second from '78...
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None from '75, but a few from '76...
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A handful from '74...
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A couple from 1973... The new cab showed up here.
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How about some 1972's?
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Only 1 from 1971...
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A few from 1970... The blue R700 ones show a lot of different engine options and the model numbers associated with each one.
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A couple from 1969...
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Here are a few from 1967... Picked up the 237 Maxi on these.
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I do not have anything on that R either. Sorry.
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Not so much for the veterans, but hopefully helpful for some of the newer members… The 607 implies what the standard engine was…maybe the n/a END-673P. But, as shown in those brochures, there were optional engines available. Could have been a couple of different engines factory-installed. The “S” shows that it was originally a “six wheel” (tandem) truck The lack of a “T” says it was not originally built as a tractor, but rather as a straight truck. Pretty common on DMs, since the primary market was “Dumper and Mixer”.
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They did use Chrysler 413s in some of them.
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I don’t have any B ones. I’ll see what I have on the R. When I was gathering these, I wish I had searched for stuff outside my area of interest. I’ve regretted that many times.
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Spongy/soft brakes, purging relay valve
doubleclutchinweasel replied to Highroadhauling's topic in Air Systems and Brakes
Unhook the parking brake release hose from the cam and apply foot brake. If the can is leaking through, air will come out of the parking brake fitting on the can. Can also do the opposite thing. Unhook the service brake fitting and release the parking brake to see if air comes out the service fitting. Be sure to scotch it securely before trying any of this. Sound reasonable, JoJo?
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