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39 Baby Mack

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Posts posted by 39 Baby Mack

    AB injection timing light J37077

    in Parts Wanted

    Posted

    Hay Albert,

    You what to hang on the frame rail with the timing gun pointed at the balancer while I'm going down the track hooked to the sled? You still have a old hood we could cut a hole in? That will put a good load on her for a few seconds. Oh crap forgot no passengers per the pulling rules... LOL

    Maybe a good use for a GoPRo camera and timing light rigged up under the hood??? Glenn got a solution just had to think about it for a minute.

    I want a picture if this!

    Ron

    Sent from my SM-G900V using Tapatalk

    Need some trans info

    in Antique and Classic Mack Trucks General Discussion

    Posted

    I don't think the type of air cleaner has anything to do with the truck being Canadian or not. R model air cleaners with two air ducts coming out the front would be an indicator that the truck had a Maxidyne 285 or 300 with tip turbine / coolpower set-up. One air duct goes directly to the intake side of the turbo and the other goes directly to the cool air side of the heat exchanger. I haven't seen any other type of Mack engine using this type of dual duct air cleaner, but I also haven't spent too much time in Canada.

    I only mentioned this at all because it would have been a non-typical powertrain combination to have a 12 speed transmission mounted to a Maxidyne 300 engine. The high torque and long powerband of the Maxidyne did not need so many gear ratios, and the whole selling point of the engine was to cut down on the number of gear shifts needed when accelerating or decelerating.

    If in fact Canadian R models had two air ducts coming out of the air cleaner for some other reason, then I'd be interested in understanding why.

    This truck also has a hood scoop on it too. The scoop would be for the tip turbine fan. The second pipe on the air cleaner would more than likely be for under hood air supply in cold weather.

    Ron

    Sent from my SM-G900V using Tapatalk

    • Like 2

    Message From Harbison

    in Odds and Ends

    Posted

    Thanks for all the texts,calls, and well wishes,made it home,Lack of maintenance issues on my part,started getting bad last week of Nov. but I was trying to push thru till the 11th when the barges quit running and things sloowed down,but it didn't happen.Hard to get thru my thick skull that I ain't as tough as a old Mack anymore.

    Glad you're home Mike

    take care of yourself

    Ron

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    Mack v8's before the E9

    in Engine and Transmission

    Posted

    Grant Haulage was given a demo with a 1000 series Mack V8 (pre E9) in an RWS in the early 80's. They ended up accepting the demo unit as there own on the condition it was repowered with an 8V92 Detroit. They were unimpressed with the pre E9 engine and never spec'ed a V8 Mack in any of there trucks considering they rarely ever hauled less then GVWR's of 100,000lbs. The E6 350 did just fine for them hauling 110-120 gross.

    Don't let Randy see this!

    Ron

    Sent from my SM-G900V using Tapatalk

    • Like 3

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