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Big Dog
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Everything posted by Whiskymack

  1. The cab height is the same on both but the hood changed. The orange truck is the earlier model and it used the eastern style R700 hood on a Western frame. The ride height of a western frame was generally higher than the eastern model and the cab was mounted higher so you can see a big gap between tyre and fender especially if you compare with the picture which began this thread. In about 72 Mack came out with a new Western hood, dropping the fenders down several inches so creating a taller hood and closing down the gap between tyre and fender. You can see the extra inches in the flat panel below the body line along the sides. This was regardless of the engine fitted.
  2. Pretty sure that's an early Western grill minus the lower portion which I believe attached to the bumper. Replaced with newer style Western grill around 69/70.
  3. Very nice. It has an early Western grill although everything else looks like Eastern built.
  4. Vlad, your English is coming along terrifically. I can't vouch for your spoken English having never met you but I can see that your writing has improved so much over the years. You certainly put me to shame! I can't write in any other language than English.
  5. On ebay: https://www.ebay.com/itm/1968-mack-r-model-v8/113912190305?hash=item1a85b21561:g:EZgAAOSwSKJdln5H I'm guessing this would be a 615 with the 864 motor. I'm curious about the re-routing of the steering. Somewhere on the forum I saw that the BCR conversions had this too but I suppose in this case it is to get around the V8. Nice looking truck though.
  6. R612 or 712 for the 300+ but I think a lot were coupled to fuller roadrangers. https://www.truckpaper.com/listings/trucks/for-sale/list/manufacturer/mack/model/r612st
  7. Here's a bit of wishful thinking. The superdog with the round headlamps has the newer bumper from the 2nd generation. You can tell by the position of the cutouts. However, It still has the round headlamp hood from the original super liner and that looks to me like it says 'Vehicle Development Lab' on the door. Now wouldn't it be great if it turned out to be a pre-production prototype for the 2nd gen. Superliner- an MH frame with Superliner cab and hood mounted on it. I'd love it to be true. Maybe someone can get a closer look?
  8. Interesting find. I've never seen a Detroit in a 600 model before. I've seen a few RS700's with them but it looks a real tight fit in a 600. It looks like it's factory going by the data plate.
  9. Thank you. I'll see if I can get in touch with Mike Gully.
  10. I have had the Freightliner Powerliner cabover on my list of to do model projects for years but just can't find the information I need. I was wondering if anyone has one or has access to one which they could photograph for me. They seem to be something of a rare beast and I'm pretty sure I won't find one in the UK. I'm particularly interested in front end frame detail such as spring hangars, cab mounts and how the radiator is mounted. It's all a bit complicated in there and I can't figure it out so any help would be appreciated. I would really need someone to get in there with a camera and take a whole load of shots. Alastair
  11. All the early flat backed cab R's I have seen had what looks like a one piece hood without the fender seam. I think Mack may have started getting the hoods from a different supplier sometime in the 70's and their manufacture process involved bonding on the fenders so for this reason the seam became a feature. Perhaps because it was quite distinctive it was kept for a while when they switched back to single piece hoods. It would be interesting to know if Mack used more than one supplier at the same time and had both variants available. Later R model hoods didn't have the seam or that slight step in further down the fender either. I suppose Mack just decided to clean up the design a bit.
  12. This topic came up a few years back but I can't find the thread. I seem to remember someone saying that the hoods were not necessarily made by the same manufacturer so the differences were down to the particular process employed by each manufacturer.
  13. I still think there is no difference and that all the plus 3 back panels were the same excepting the addition of the vertical body crease some time in the late 70's. The top corners of the roof panel were substantially radiused so the bulge appears more prominent when the cab is viewed from the front corner but less when the cab is viewed side on. Follow this link to see this. https://www.purplewave.com/auction/120228/item/A6751 I'd also argue that, after the plus 3 cab was introduced, the long grab handle was standard on all the R,U,DM cabs including the flat back cab which was retained as standard on the U. It looks like the panel was modified to eliminate the mounting bump for the old short handle. The U could be ordered with a plus 3 cab. There was one for sale on here a few years ago.
  14. I think the U model came with the flat backed cab as standard to preserve the 90 inch BBC but could be specd. with a plus 3 cab if BBC wasn't critical. I think the body line crease behind the grab handle appeared in the late 70's but wasn't present on the earlier plus 3 cabs. Apart from that I can't see any difference in the curvature of the plus 3 back panel.
  15. https://chuckhenry.com/inventory/tow+trucks/1973-mack-rs700l-solomon-ks-5be0c93db4763d2c5a513a62/ Came across this. Big price tag but I hope it goes to a good home.
  16. Depends on how much scratch building you want to do. Vlad is spot on as usual. The US spec MH had an entirely new frame which was also used on the Super-liner 2. Here's a link to a series of articles on upgrading the old Italeri Superliner including scratch building the correct frame. I'd have thought you could pretty much follow this but using the MH Cab. https://public.fotki.com/modeltrucks25thscale/model_magazine_articles/scale_auto_enthousiast/sae_2000-2004/sae_2001_02__februari/saefeb01p1.html
  17. That does add to the confusion! But there may still be an explanation...... I think your last line was meant to be 'The 1985 was built in Allentown'. This would make sense because I believe Hayward closed in the early 1980's and all production of Hayward models was transferred east. The hood ridge appeared roughly about the time the RS600L got the Value-liner moniker but can also be found on some very late model RS700's. I have also seen it on a few metal dash RS700's so I imagine that replacement hoods from about 1978 also had this ridge. I think the ridge may had served as a strengthening rib but I'm not sure. As regards the fact that the hoods and BBC seem to be the same on both your trucks despite the spec sheet dimensions saying otherwise, this is my best guess: On RS700's, pre Value-Liner RS600's and first Generation Super-Liners the back edge of the hood comes right up to the outer edge of the cowl and you often see paint/hood chips on older trucks. On later 1980's models there is often a gap between the back end of the hood and the outer edge of the cowl. I would say this gap is about an inch but I don't know if it is as much as 1.75. I always imagined this gap was to stop the hood and cowl bashing together on trucks with air ride cabs but maybe it killed two birds with one stone by moving the hood forward a bit to make space for the rad mounted intercooler. Just a guess though. You could try measuring from the bumper to the back of the cab as I think hoods tend to move around a bit as well.
  18. I think these are the dimensions you want: 1977 RS700L BBC= 117 inches Bumper to front wheel centre= 28 inches 1977 RS600L BBC = 105 inches Bumper to front wheel centre= 28 inches 1985 RS600L Value-Liner BBC = 106.75 inches Bumper to front wheel centre= 29.75 inches The difference in 1970's models was a clear 12 inches but the introduction of the intercooler ahead of the radiator added an extra 1.75 inches to the front end of the RS 600L so the difference between your RS600L and an RS700L should be 10.25 inches. I've no experience of real tucks so can only speak theoretically. I have made reasonably accurate scale models of both the RS700L and RS600L. The front cab mounts for a 77 RS 700L and Value-liner look the same and also had one of the battery box mounts incorporated. On the RS700L the cab/battery box bracket was the rear support for the battery box but on the Value-liner it was swapped to become the front support. I don't know if the battery box/ cab support mounting holes for the front and back were in the same position on the frame and therefore interchangeable on both the 600 and 700 models but it might be worth looking into. Then there would still be the extra 1.75 inches at the front to consider as well as the other things Vlad listed. spec sheet0001.pdf
  19. Just stumbled across this. Might be helpful as it looks pretty much identical to the AMT R685ST. https://www.purplewave.com/auction/151118A/item/L5144
  20. Hello Steven, Always good to see a fellow model maker here. I'm assuming you have the AMT R685ST kit which, as Vladislav says, is 1:25. It's a pretty good kit which dates back to the 1970's so I think it fairly accurately represents an R685 from about 1976 or 77. The front end is a taperleaf spring set up and is well detailed on the kit so I wouldn't have thought you'd have any problems with it. The rear is a tandem Camelback spring set up. There's no airbag. Again, it's pretty well represented on the kit. If you want more detail then googling is a good bet but it's also worth visiting truck sales sites such as truckpaper or even ebay as sellers often post close up shots of less accessible areas. Naturally the guys on this site are incredibly knowledgeable and have helped me a lot with my models. I also have a few brochures so I'll have a look through them and see if I can find anything. I know there is a good image of a camelback somewhere. As for kits, the ones mentioned in other posts are all available if you look. AMT did the Cruiseliner as well as the R685 in 1:25 and a Superliner in 1:32 as both a tractor or a wrecker. ERTL did the DM600 and DM800 which date back to MPC kits from the early 1970's and all of these kits apart from the 1:32 ones seem to get reissued regularly so you can get them from online model shops and ebay for a reasonable price. Some of the original releases are also sold by private sellers on ebay but the prices can be silly. In 1:24, Italeri did a Superliner which was never branded as a Mack. This kit has been reissued by Italeri, Revell and Heller over the years but the frame/chassis is from Italeri's Freightliner kit and bears little resemblance to a Superliner frame and the cab is not a great copy either. There's not much Mack in his kit so you need to do a lot of work to get it up to standard but you can see that Pawel did a pretty good job if you follow the link in J Hancock's post. I hope this helps. I'll have a rummage through my literature and see if I can't find some images for you. Alastair
  21. I saw that recently. It is a superliner. Also check out the German TV movie 'Fleisch' released in English as 'Spare Parts'. One of the main characters drives a great looking RS700L.
  22. Thank you. A few years on and off but, short of too many, I've no idea in hours
  23. Finally finished my 1:24 scale Rubber Duck RS700L. It's loosely based on one of the early 70's second unit trucks: metal dash cab, Cummins power and cosmetic damage. With 1:25 scale brother for comparison.
  24. Started out as AMT and ERTL with lots of modifications. Back in the 70's and 80's AMT covered all the major US truck brands and some of the lesser ones as well. ERTL did a couple of Macks and a few Internationals.
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