ThaddeusW

My GMC 6000 with a 170HP 350 gasser gets about 5-6 MPG. I bet with some more oomph and a newer engine you could get past 8 mpg. The good news is that Mack did use Chrysler engines. But I don't know if you can still easily find the parts. The R400 was offered with a Chrysler as well as some B models to replace the flathead v8's.

I listen to mostly metal but also classic Rock and rock in general. Rap isnt music PERIOD. As for radio stations here in NYC its Q104.3 and Seaton Hall's Pirate Radio on 89.5. 92.3 K rock is crap. Just about every time I turn it on, I swear the chili peppers are playing and I cant stand them. Q104.3 has a real good DJ on Sunday, forget his name. He always has a rockin show. New York University's 89.1 has a Friday night death/black metal show called the Hell Hole.

Actually the dpf removes the particulate matter which in layman's terms means soot. So they are trying to prevent black smoke. The SCR and EGR tackles the gaseous pollutant NOx (nitrogen oxides) which stay in the air. Now the black smoke isn't a long term pollutant, as it will settle back down to earth. But if breathed in it can be cancer causing and is also blamed for causing asthma. Asthma is an especially big issue among minority children here in NYC as bus depots in Harlem were blamed for a spike in asthma cases reported in children living in the area (think of over a hundred 6v92's running around your neighborhood every day!) So hopefully with SCR we can see the EGR eased up which will mean better fuel economy and power.

I saw this on eBay Its pricy but has a complete cylinder kit with rings, liners and pistons.

Ok on a gas engine you just unscrew a spark plug and thread the gauge into the plug hole. On a diesel I assume that you have to pull an injector and bolt in a special adapter correct?

Rigchaser, Thanks for those shots! If anyone has any more shots of M series please post em! This M65/75SX might still be working. This 1958 LFSX still works for Marino Crane. It was previously owned by Gerosa. Anyone have any M series brochures?

The reason standard bolts might not hold is because they have different pitch diameter limits or H number. Yes thats right, even though a thread might be a 3/8-16 there are slight variations in pitch diameter that are numbered H1-H7 for over and L1-L3 for under. The number indicates how many thousandths the diameter is over or under the standard size. A standard 3/8-16 might be an H3-H4 which is 1-2 thousandths over to ensure the bolt easily threads in. Those Mack threads might be larger on the block for a larger thread pitch diameter. I believe the head studs are an H1 or L1 which is five-ten thousandths (.0005") over or under to ensure such a tight fit they nearly bind together. Possible the pitch diameter on standard bolts is too small and they come loose. You would need a very accurate thread gauge to see that or possibly use a micrometer to check.

Ok I see there are a few different names for the old 10 and 12 speed transmissions. First there is the two stick ten speed, 12 speed extended range and plain 12 speed. I thought the two stick 10 speed had a lo/direct compound stick and 1-2-3-4-5 with a hi-lo-N-rev air switch on the main. 10 foward gears, 5 rev gears with 1st used in lo on the compound for two crawler gears. 12 speeds foward speeds in total. Is this also called the 12 extended range? The model is TRTXL1070. The other 12 speed I know of has a single stick with 1-2-3-4-5-6 and hi-lo-N-rev on the air switch. You split each gear to 6 for 12 foward gears and 6 reverse gears. What model transmission s that? TRXL1270? Newer mack transmission model numbers confuse me.

I said it before and ill say it again its our own fault this foreign influence happened. Of course I am not casting scorn on anyone. Its just that in Europe they competed heavily with technology and trucks kept evolving and becoming more advanced and comfortable. We sat around content with old designs that were slowly updated. They also pushed into foreign markets with aggression. Look at South America, you think it was Europe with all the Euro trucks running around. Meanwhile its closer to us than Europe. Why aren't we selling tucks down there? Now that newer emissions laws are in play, the US truck makers are finding their archaic engine designs difficult to update. So we had to turn to Euro makers to get on our feet. You reap what you sow. They have cabovers that are many times more comfortable than ours. Cabs ride on four point air suspension along with front and rear air suspension. Standard air disc brakes for nearly two decades. Synchro gearboxes and smooth shifting automated manuals. You can only stay behind for so long until you are forced to go forward. And if your not prepared for the advance then someone has to help you. Our trucks worked fine all these years and they still do but emission laws will force us to compete with more technology.

I hope not! Allot of people knock International but they have been around a long time and have managed so without being bought out. Heck they even bought out British Atkinson and further improved the Australian Atkinson 3800 which is a legend down under. So far MAN and International have a partnership, nothing more. They even co-devloped the MaxxForce. Its not just a rebranded MAN, they actually designed most of what you see. It will even have a compression brake something that MAN didn't have on the D20. International also bought Brazilian MWM who makes most of the engines sold in South America. Lets hope they keep it up good to see an American company standing on its own two feet (even if it is shaky). They should have bought Mack, would have been an excellent combination.

Ok while browsing the photo album of an Australian member (Swishy) of Hanks truck forum I found this great five part article. It covers Mack from the beginning to the 70's and has all ot great pictures to go along. Pictures of the rare extreme duty M and L models along with an N model mixer and even the FCSW which was a 3 axle 100K GVW dump truck built in 1937, only two were ever made! My favorite pictures are of the M75SX and the M45SX. I wonder if any still exist especially the M75, would make a nice collectors piece . The first page of part three has an interesting picture of how Mack even used camel back paired with a second set of springs to take the weight of tandem planetary hub reduction axles. Here is the link: http://www.bigmacktrucks.com/index.php?aut...si&img=2539 The images are 800x1100 which you can easily print. They look perfect on paper! Enjoy

Thats what I was talking about. They had spicer make the chassis whole and mack dropped the cab on top and the engine. Fuller gear box and eaton/spicer axles. Thats why finding a used CH with an all mack driveline is near impossible. When I was thinking of driving I was looking at used CH's and man out of the hundreds that I saw maybe 4 or 5 had all Mack components.

Didnt I hear that Eaton was actually building chassis for Mack for a while? I believe many CH chassis were Eaton built. Someone correct me if I am worng.

Vista - UGH I have had the unpleasent experience of fighting to get it working right on a friends computer.