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Macktruckman

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Macktruckman last won the day on January 19

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  1. Has anyone ever seen or tried to put a 3408 in an R686? The biggest limiting factor with the R600 is the short hood right? A 3408 should be considerably shorter than a 3406 right? They are a 60 degree V instead of a 90 like the E9 so should be narrower than the big mack? Im just thinking for giggles. My EM6 needs some block work or just replaced and my first obvious choice would be an E7 given the many similarities with the E6 but I’m just curious about other options. And not so common options. Don’t crucify me for putting a cat in a dog as I haven’t done it. Lol. Just interesting conversation at this point Josh
  2. Valve very well may have stuck. Ive not had a stuck valve in a big engine myself but have seen it happen several times in small engines like lawn mowers. And it bent a push rod every time. Sounds very likely to me. I’m glad you got it going and look foward to hearing how it compares with the 285 when you get to use it. My 2 valve went down hard a couple weeks ago so im curious how the 4v is in its place as im looking for options. josh
  3. I was under the impression that the previous 285 2v had a dynatard and the replacement 4v was not. If thats the case wouldn’t cam in the 4v be a standard cam and you are using the valve setting method for a dynatard engine on the new non dynatard engine? Forgive me if im way off. Im just thinking. josh
  4. It does look like a reo. Makes sense. Its neat though. josh.
  5. I guess mack made a pickup in tbe late 30’s early 40’s? A friend sent me a facebook thing off the mack page. josh
  6. Those little freightliners are neat bob. Like a FL-70? I have a little Chevy Kodiak C60 that i made a little dump truck. I pull my backhoe with it alot. Its a cat 3116 and eaton 6 speed and juice brakes. With an 11.5’ bed it turns way sharper than my crew cab 3500 ram and stops better with a load. Has the little 19.5 lopro tires. Its got the 90’s Chevy pickup cab and dash. It’s handy as a pocket on a shirt but it would be neater if it was a little mack!! Lol. Josh
  7. What engine and transmission did yours have bob? josh
  8. I love the look of the cruiseliner bob. That makes sense terry the truck its in has 5.73’s josh
  9. Ive never driven a 350 maybe an E6-350 would satisfy me. josh
  10. Oh yeah bob i loved that 6 speed for real local and site work. Gravel pits. When build pads and use a borrow pit on the same property. Things like that. But it needs a gear between 4 & 5 in the man box and then a decent overdrive (like eatons .73) after 5th. It screamed to do 55 on the highway and it fell on its face if it even saw a hill coming. Lol. josh
  11. Well… there lies the kicker. Lol. In far eastern Oklahoma where we are its hill after hill and winding roads so no good run at your hill. Not much flat where I live. Lol. That truck was originally a EM6-250L. Has a sister truck specs identical I believe. They said the trucks were gutless and they took them to a mack dealer in okc and had them “turned up” they came back running much better im told and mack dealer restamped the engine tag “300” this particular truck the mechanic here tells me ran better than any of the macks on the place. I believe the pump is ambac where mine is robert bosch. My truck had the 107 2 stick 6 speed and I liked it well on site and flat ground (except for no overdrive). I put a RTO-14909MLL in its place a few years ago and it definitely helped with the hills. And with the 4.17 rears the overdrive is nice on the highway. And still have deep reduction gears for site work.
  12. I’m thinking its too late to cap that one bob! Hahaha. josh
  13. And damn, 10 new tires calls for a bank loan these days. Lol. Tires like everything are expensive as heck. Lol josh
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