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Post by jimb on Apr 1, 2013 4:28:41 GMT -8
That's an awesome deal!
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spimike
RIGGER
logger till the end
Posts: 190
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Post by spimike on Apr 1, 2013 4:50:36 GMT -8
Arghhh the dreaded torsion bar suspension, we had one on a lowbed truck not worth a crap unless you enjoy your drive tires coming off the ground in a corner with a 90,000 pound shovel behind you. Long story short that winter it got a brand new spring over walking beam installed, would have pete air leaf under it but someone sold it before we could get to it. It also did these acrobatics when hauling logs so it wasnt just lowbed doing it.
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Post by ap40rocktruck on Apr 1, 2013 10:42:33 GMT -8
Arghhh the dreaded torsion bar suspension, we had one on a lowbed truck not worth a crap unless you enjoy your drive tires coming off the ground in a corner with a 90,000 pound shovel behind you. Long story short that winter it got a brand new spring over walking beam installed, would have pete air leaf under it but someone sold it before we could get to it. It also did these acrobatics when hauling logs so it wasnt just lowbed doing it. Same bit of uselessness everywhere. the torsion bar suspension was only rated for a 38K load, and a kidney puncher at that. Many have been replaced by the KW AG-100, 8 bag air ride. Ap40 |
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Post by Muleskinner on Apr 3, 2013 17:34:04 GMT -8
Yes, they are exactly the same except for the decals. Robert is correct, some of the early issues of the Watkins truck have the torsion bar suspension (hence the W925 designation), while later issues if the Watkins & "Movin' On" kits have the spring suspensions (technically they are W923). Now, some people who know a heck of a lot more about logging than I do should be able to confirm this, but I don't thing the torsion bar suspension would be appropriate for a logging truck. I have only seen one truck with Torsion bar suspension used as a logging truck and it didn't last very long as the suspension broke down under load. (literally) Most logging trucks will use heavy spring suspension although a lot are now going to Eight bag suspension as with my nephews rig which he drives for Redwood Coast Trucking out of Arcata. most of Wayne Bares trucks out of Arcata had block and biscute type rear ends on them and seemed to hold up very well under the load. If you are going to make that an older rig I would go for the rear suspension from the AMT K123 as it is closest to the Logging suspension of the early 60's. You can also beef it up a little by adding plastic strips and what not in different areas. If you want another heavy suspension which would take less modification, I would recommend the ERTL Pay star suspension, as it is close to the logging size and a more hefty type unit. A Mack unit will also work. One thing you gotta remember is loggers use what ever works best for them and most logging trucks start out as a glider unit ordered so the company could install what ever they have handy which is usable. I've seen a lot of older rigs with Mack, International and so forth, rear ends in them which were installed by the shop. Like I said before what eve works best for the company and type of weight they will be supporting. William |
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Post by jimb on Apr 4, 2013 4:45:47 GMT -8
See? I knew someone would know!
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Post by gator on Apr 4, 2013 6:59:43 GMT -8
For a suspension I like the one on the Autocar dump! I also like the heavy duty Mack suspensions and axle from AITM. ANd I think Rick ap40rocktrk might have some heavy duty suspension parts as well.
Be Well
Gator
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Post by sailorross on Apr 4, 2013 10:14:45 GMT -8
Yokohama 3200 miles behind me Los Angeles 2200 ahead, Its starting to look more like a truck…it looks best from about 20 feet though, painting it way harder than it should be…is it easier with an airbrush? You can probably see ive moved the mirror top to the door and added the aft bracket, also chopped the cab guard top and reversed the slope like they were in the old days…I really hate the tires and am open to suggestion for new rubber the truck tires are too skinny and the trailer tires are so fat they pop off the rims. Any criticisms/suggestions are much appreciated Attachments:
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Post by sailorross on Apr 4, 2013 10:23:10 GMT -8
Here is No. 11 one log load and my uncle Ray Ross driving…the single stack looks funny that tall but there it is. Also like William pointed out you used what you had, tires seemed to be of many sorts and conditions…im assuming that a lot of the crappy tires were used when the trucks were on all off highway duty and the new tires were on the lumber trucks running to the city? Attachments:
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Post by rnagle on Apr 4, 2013 11:29:21 GMT -8
Airbrushing will definitely make painting easier as you will have much more control over the amount of paint applied. (Spray cans are either "on" or "off" and the volume of paint is always "lots") "Snap kit" wheels and tires are a definite weak link, is it the snap frame and axles that you are using as well? This one, which I need to get back to work on and complete, uses the snap frame with AMT wheels and tires. Wheels don't roll as I epoxied them in place, I also fitted brake drums. I don't have any photos showing actual wheel installation, I assembled both rear wheels and tires as a unit, drilled out mounting hole slightly oversize and used 5 minute epoxy. Blocking truck level and at proper height on flat surface allowed wheels to be fitted, aligned and checked before epoxy cured.  |
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Post by Muleskinner on Apr 4, 2013 13:55:24 GMT -8
Here is No. 11 one log load and my uncle Ray Ross driving…the single stack looks funny that tall but there it is. Also like William pointed out you used what you had, tires seemed to be of many sorts and conditions…im assuming that a lot of the crappy tires were used when the trucks were on all off highway duty and the new tires were on the lumber trucks running to the city? Back in the prehistoric days of logging, there wasn't much control over tires and sizes they put on a rig and it didn't matter if it was used off road on over the highway. But then again that was an era when there wasn't as many vehicles traveling the road. A truck driver could get away with what ever he seemed fit. There was also less law enforcement on the highways and by ways of the west. When more people started traveling the highways and more autos started to flood those highways police and enforcement also started to grow and the safety of these automobiles and occupants became number one. Number one priority was the safety checking of Trucks and the number one item they were looking at was the tires.. Under certain circumstances if a tire blew and the truck driver, lost control and started worming around the highway any autos which got in the way, the auto and the occupants nine times out of ten loose. A tire which blows and starts shredding is the same as throwing shrapnel from and artillery round, and if you are in an automobile right next to or in the general vicinity, you are going to catch that shrapnel as it flies. Most trucking units would not use a tire where the tread is down to the minimum. Back in the days the recap was a big thing for logging units. Although good to have, Recaps had a habit to make the tire a little bit large or smaller than it started out. This is why a lot of trucking units had in their tire shop a gauge which was used to measure the size they were running and then find a match for it in the rack of recaps. What it amounted to was a piece of metal flat iron with a fixed 90 degree piece welded to the end of it and a movable piece which could be moved up and down the longer flat iron piece which acted much the same way as an over size calibrator. The shop mech or driver would center the bar edgewise over the hub with the fixed end resting against the out side of the tire. He would then move the other 90 degree bar inward until it rested against the tread on the opposite side of the tire. Once this was done he would lock it down and remove it. Going to the tire rack he could slip over various tires until he found one closest to the size he was running and change his tire or have it changed. Running larger tires mixed with smaller put a lot of wear and tear on the bearings of the axle and also drag on the tires them selves causing heat which can lead to a blow out or shredded cap on the tire. The excess heat would heat up the joint of the tread and loosen it to an extent that the recap would start lifting from the tire and then begin coming apart. I had this happen one time while driving an F-150 ford pick up and when the cap came off it wrapped up around the rear axle and wild things started happening. Now don't get me wrong Recaps were good on Trucks if they were used right and all the tires matched up close in size. But when you started mixing different sizes you were just asking for trouble. A lot of companies would run a bad tire on the inside dual if was good enough to get them around until a replacement was found. This practice was also illegal and could bring in a good ticket when smokey finally started checking tires more closely. The reason it was put on the inside was if it blew in operation the outside tire would act as a buffer during any shredding that occurred. It was good in thought but a shredding tire doesn't always obey the rules. I seen one of Wayne Bares trucks, where the tire blew and a chunk of rubber went between the ribs on the headache rack then through the rear window of the cab bounced off the inside of the windshield , made its rounds of the cab and came to rest in the drivers lap. The tire that blew was the inside front right behind him. If you look at a lot of mixed tires on the rigs you see if you measure them Taking in the wear and tear factor. from one side to the other you will see that they are close within inches to the same size. In some cases, tire sizes say one thing but the actual diameter of the tire says something else. The last outfit I worked for had a habit of sending me to get tires and I would always show up with my tape measure and statistic of the tires already on the rig. It used to make the tire sales people a little bit mad but then when it comes to safety of the driver that comes first. William |
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Post by 78kw on Apr 6, 2013 11:00:51 GMT -8
Looking good so far.
Sent from my SPH-D710 using proboards
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