David
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Everything posted by David
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Mack All Wheel Drive And Pto
David replied to ThaddeusW's topic in Antique and Classic Mack Trucks General Discussion
You can get the Granite in all wheel drive. I believe the RM was available in all wheel drive until it was replaced by the Granite. My RM 4x4 is a 1980 with 21k miles on it. There are a lot of the flywheel pto's in use today. If you see a Mack concrete truck without the front bumper extended for the pump, it probably has a flywheel pto. Unlike a transmission mounted pto, you have a live pto with the clutch depressed. Look for the little drive shaft along the passenger side of the transmission. -
We had this happen once on a 237. The truck was running fine, ran out of fuel, one tank empty and one tank half full. Filled it up and ran about 50 miles and the engine started knocking. One of the injectors was loose and started coming apart. Tightened the pieces of the injector back up, installed it, and made it home without amy futher problems.
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Just one more thing we can thank Volvo for.
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Is there a Bulldog Roundup at the engine plant this year?
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Will a unimount wheel fit over the cap on the end of your axle? Your best bet may be to change the axles to 44k. Buy a used cut off. That will give you everything wheel to wheel with choice of ratio. If you use this truck off highway, the 4.17 and faster ratios won't hold up. That is why mack uses slow rears and very fast transmissions.
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1100 x 22.5 tires and .6 to 1 overdrive with 5.73 rears: direct @ 2000 rpm = 42 mph overdrive @ 1287 rpm = 45 mph 1715 rpm = 60 mph 2000 rpm = 70 mph with 5.55 rears: direct @ 2000 rpm = 43 mph overdrive @ 1246 rpm = 45 mph 1662 rpm = 60 mph 1938 rpm = 70 mph
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What size tires do you run?
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7.00 rears with 1100X22.5 tires at 70 mph, the drive shaft is turning 4000 rpm.
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It's easier, cheaper, and more driver friendly to just change the rear ends.
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Was a good show. About 600 trucks. Good weather. But I think Macungie will be better!
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Just run your pump off the front of the Mack engine.
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I've seen this problem on engines with low oil presure.
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HK, Is that your CL on Ebay?
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You'll find out what else can go wrong when enough unfiltered fuel gets through the pump and to the injectors.
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The diagram I have shows the differences for Cat engines. Call me or send an address and I'll send you a copy.
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Is changing to Daylight savings time in March instead of April ( as almost all computers are programed for) going to cause any problems?
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Did you know Georgia was orginally an English Penal Colony?
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My Old Battle Wagon...
David replied to mudslut28's topic in Antique and Classic Mack Trucks General Discussion
Steel hoods are also on the RM. -
Cook Bros. in Binghamton was orginaly a Brockway dealer. Through the years they have been sold and bought back by the same family.
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When you pull the compressor, check the water lines to be sure the compressor is getting circulation. If the compressor air intake is plumbed to intake side of the turbo, you should update it by either plumbing to intake manifold or installing a filter kit on the compressor.
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Ok Im In Love....
David replied to ThaddeusW's topic in Antique and Classic Mack Trucks General Discussion
Thad, Look at ebay item number 320077270397. It's in your price range and within a days drive! -
Cant Get The Truck Fired Up
David replied to chris88's topic in Antique and Classic Mack Trucks General Discussion
Some of these old engines that haven't been run for some time will rev up and not stop until something breaks. Even the fuel cut off won't work. You may want to install a quick coupler or a valve on the supply line at the pump so you can kill the engine if this situation should arise. -
In the third picture posted above by Maxidyne237, the 1993 RW with the high top sleeper in the background was the last one built.
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Actually the toughest is the one you didn't mention.......the RM.
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