Lmackattack

Tip Turbine used boost from the turbo to spin the turbine. the Turbine would draw "cold"air from the 2nd tube on the air cleaner and pass it thru a charge cooler to reduce the temp of the boosted air. A front mount intercooler works much better but there is no mistaking the sound of a tip turbine. Many people dont know that there were a few versions of the side mount charge cooler. Some were air to air only others had both air to air with a water jacket to help reduce intake temps. the one shown in the pic has the water and air version

Thats right Glen. After I drilled all the welds out of the old roof skin it came off and I saw the rain rail / gutter had some rot in it. So I then removed the rain rails and installed new ones by simply gluing them to the cab. I used the new roof skin for a guide when installing the rain rails. The roof skin simply lays in the bottom of the rain rails so it worked good for a guide. After the rain rail dried over night I went and glued the roof skin to the new rain rails. I think it was called 3M panel bond. its what they use to glue these new cars together. They claim that the glue is stronger than the metal? the metal will tear before the glue lets go? It was much more easy to glue the new parts on than to spot weld. I also went and sprayed a 3M rust sealant in the A pillars and cab corners while the roof was off. Hope to slow any rust that cant bee seen between metal panels. Trent

Same here ...no need to brace it...I drilled out all the spot welds, removed the roof and installed new rain gutters around the rear of the cab. the front was still good. I used the 3M panel bond so no messing with re welding it. so far so good..

My Rs700L did not have a heat shield on the stack when I bought it used in 2004. I would have to go back and look at the build sheet to see if it was an option. But you are correct in saying most of the Westerns did not have shields. Just about all the pics I can find of them are bare metal mufflers.

you are correct that the westerns had straight rails nose to tail. not sure on the tank brackets but that makes sence as well as the eastern R model frames did flare out near the firewall

search for "wiskymack" on this forum. He has painstakingly made 1/25 models of a few Mack Western R models. I think he offers these kits for sale. I have one of his RS700L kits and its amazing the detail he did on it. He also had a thread on here of a Valueliner he built. this was a year or 2 ago?

the oil filter set up sure looks like that of a 673 or 711 it also has a blueish green color to it. The maxidynes were gold. The cab is a steel dash so no later than 73'

From Wiki.... 1969: Mack patents the cab air suspension.

I have pics of them stored somewhere. They were V8 macks with 2 stick 6 speeds. I remember both trucks had issues in the floor where the rear cab mounts to the frame cross members. there were not air ride cabs and with that short wheelbase and spring ride it looks like Chicago roads gave them a beating. the floors had a upward hump in them. Not sure why but I have only seen that damage to the floors on the western R models?

When they had their RS700L's for sale about 10 years ago I stopped in to look at them. In the shop they had a 2 or 3 new mid 80s R models just sitting on jack stands waiting for work or to replace a crashed truck. I for get the mileage but it was very very low. Their RS700L's went to a exporter

I may be wrong here but if you get away from the "B model" transmissions such as a 5, 6 or 12 speed used in the R models your clutch linkage changes. The B75 I just bought has a 285 maxidyne and 5 speed. inside the cab the B model clutch pedal that was pushed thru the floor was removed and a R model Pedal was installed. They bolted the pedal bracket to the fire wall and used the R model style cable linkage to the bell housing . It worked out great but if you plan to change transmissions to a pull vs push style clutch it wont just be a drop in replacement.

Years ago I saw a pic of a Superliner with a KW aerodyne bunk and it looked pretty cool as well. I think it looked period correct. Never been in a Aerodyne bunk so not sure if that was a good sleeper or not.

did you check with Mack or PAI. ? Just a few years ago PAI was still advertising old Mack engine parts?

the excuse I heard was the USA mechanical E9 was killed because of EPA crap. Now I see a electronic E9 built for over seas. I didn't know a electronic controlled Mack V8 was ever made?

When we were sled pulling we dropped the air down to 20 psi for better traction. they never gave out on us with all the abuse. I was running my RS700L around the same just to reduce the bounce.

I prefer the look of a flat top sleeper but will admit it sure is nice to be able to stand up in a bunk and have the room to move around in the morning.

Go to the 8 min mark..... Bob Eckstine with his RL700L

nice looking truck... It should be fairly easy and cheap to turn that into a 300. I think it may just be pump settings? possibly injectors?

look at this page http://www.kingofsalvage.com/mack-b-model-hood-fender.html

Seen that Superliner many times from the interstate. And yes that Yard was always full of junk.

Guy on the facebook group "steel dash macks" is trying hard to sell this 66' DM600. looks like a 711 and a quad. Looks pretty good for its age Located in Chicago. someone offered $1500 and he said come get it. might be able to get it cheep? Trent

Larry Its possible the "thump" you hear is normal? The Maxidynes had a "growl" to them. Hard to explain but their low end grunt often gave the truck a feel of its own.

current title shows it as a 1978 R686. Was below freezing this weekend... not going to mess with it untill it gets warmer out.

Your right... it happened around easter weekend just a few days after we spoke on the phone. I was in your area the Friday before Easter and stopped in the shop to tell you but you were out golfing. ..