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    1. Introduction Forum

      Welcome to the New BigMackTrucks.com Forums! Take a minute to create a new post here and introduce yourself. Tell us a little about yourself and your passion for old iron!

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    2. Truck Stories

      This is a forum for you to tell us about your truck's history! Every old truck has some type of story behind it and we would love to hear about it! Be sure to include photos if possible...

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  2. General Discussions

    1. Antique and Classic Mack Trucks General Discussion

      This is where you can talk about anything related to antique or classic trucks! If your topic is something specific, try to use the correct forum below.

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    2. Modern Mack Truck General Discussion

      This forum is for general discussions about modern Mack Trucks! Granite, Vision, Rawhide, Pinnacle...etc. Specific topics can be posted in the forums below.

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    3. Mack Dealer & Corporate Forum

      This forum is for Mack Dealers and Mack Corporate personnel only. If you are a Mack Dealer, or Mack Employee, PM the forum moderator below with your name and dealer code and you will be moved to the Dealer Group and be able to participate in this forum.

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    4. Mack Truck Q & A

      This forum is for pressing questions concerning Mack Trucks...emergency maintenance questions, pre-purchase questions, etc...answers can be rated by users and the higest rated answers will show first!

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    5. Mack on the Silver Screen

      This forum is for discussing various TV shows, commercials, music videos, songs and movies that had Mack Trucks in them!

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    6. Mack Scale Model and Diecast Corner

      All discussions about Mack scale model building and diecast models go here!

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  3. Specific Topic Forums for Antique & Modern Trucks

    1. Engine and Transmission

      This forum is for engine and transmission related topics

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    2. Driveline and Suspension

      This forum is for driveline, carrier, front and rear axle, steering and suspension topics

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      This forum is for electrical, lighting and mobile electronics topics

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    5. Exterior, Cab, Accessories and Detailing

      This forum is for topics about exterior, cab, paint, trim, bumpers, emblems, visors and also topics about keeping that truck looking its best!

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    6. Fire Apparatus

      Forum for discussions about Fire trucks and specialized fire fighting equipment.

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  4. Odds and Ends

    1. Odds and Ends

      This forum is for non-truck related topics. Talk about interesting web sites, current events, tell jokes, post funny photos...etc.

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    2. Trucking News

      News and information from the entire trucking industry

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    3. Other Truck Makes

      This is the place to show off all your other trucks that are not Macks. They can be antique or modern trucks.

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    4. Tractors and Equipment

      This forum is for you to talk about Farm Tractors and other misc. equipment such as trailers, dozers etc.

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    3. Feedback Forum

      Please leave feedback for other members you have done business with here. This will help members trust (or not trust) other members. Please be professional with your remarks...good or bad.

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    4. Transportation Board

      This forum is for posting and finding transportation opportunities for your antique hobby trucks and parts around the country. Please keep rates reasonable when posting a route...

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    5. Watt's Truck Center   (233,730 visits to this link)

      Click here to visit the Watt's Truck Center Home Page featuring The B-Model Store and tons of other parts for Antique and Classic Mack Trucks including R-Models, Super-Liners, DM's and all current models!

    6. Product Announcements & Group Buys

      This is the forum where we will post new product announcements and Group Buy Information from the B-Model Store! You can discuss them and/or ask any questions you may have here.

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  6. Shows and Events

    1. Truck Shows and Events

      This forum is for topics about truck shows and other events of interest.

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  7. Site Related

    1. Site Related Topics

      This forum is for BMT related comments, suggestions or problems.

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    2. BMT Wiki Support Topics

      This forum will hold the support topics created from the Wiki System.

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    3. Test Forum

      This is the place to practice posting photos or testing code. Topics may be removed at any time...

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  8. Club Forums

    1. Mack Trucks Memorabilia Collectors Club Topics

      This club page is for all Mack Memorabilia discussions

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  • Latest Posts

    • Geoff Weeks
      wrist pin bushings.

      By Geoff Weeks · Posted

      What many people fail to understand, there are spec's for new parts fitting together and "usable wear limits" which are far greater. If within the "usable wear limit" the mfg is saying it is good enough to be re-used. Not as good as new parts but not determental to placed back in service. You use the 1st when assembling new parts together and the other when reusing parts that are already in service.
    • Joey Mack
      wrist pin bushings.

      By Joey Mack · Posted

      G.W.   There is truth to just ''Knowing'' it's good to go..  You speak a truth..  
    • Geoff Weeks
      wrist pin bushings.

      By Geoff Weeks · Posted

      Be careful of perfection being the enemy of good enough. What are your plans for this build? Another 2M miles build? or a engine that can go another 1m miles?  Yes, there are specs for new parts, often there are spec's for usable wear limit.  having built many engine with success, I would use my "mechanic's feel" for things like pin bushings. I know that isn't what the "book" lists as the spec for new parts going together, however as long as it is within usable wear limits it will give satisfactory results. Even slightly outside usable wear limits it would give a fair lifespan. So this comes back to what your plans are for the engine. If you are doing it for hire, and offering a guaranty, then spend the money for reconditioned parts or to have your parts reconditioned. If, however you are building for yourself, can accept a little risk, and have the basic understanding of what it required and can make your own judgement, then "feel" is good enough. I see Joey was writing about the same time as I was.
    • Joey Mack
      wrist pin bushings.

      By Joey Mack · Posted

      Well, for almost 2 million miles, I will say the bushings look great.  Do you have a .002'' thickness gauge or a sliver of steel shim paper to cut a thickness gauge out and use it to check the fitment?  If it was mine and on a budget, I would wash my hands good and dip my finger in some oil and feel the bushings for any grooves and go from there... This may not sound professional, but Ive done it many times..  
    • 07cl733
      wrist pin bushings.

      By 07cl733 · Posted

      Here are some pics.
    • 07cl733
      wrist pin bushings.

      By 07cl733 · Posted

      Thanks for all the replies. I do not have a machine shop close by, but may need to find one. I don't have any type of bore gauge that will come close to .0015, so I probably should find someone that does. Do you think a feeler gauge between the pin and bushing would be a good enough indicator? I'm trying to upload pics, but not having any luck.  Would you normally have the bushings replaced, if worn, or get new/reconditioned rods? 
    • Joey Mack
      wrist pin bushings.

      By Joey Mack · Posted

      here is my old junk..  I bought these almost 30 years ago along with some 2-4'' mic's.  for $75.00 at a yard sale at an Antique store in Scarborough Maine...  I think it was called Centervail Antiques...  
    • Joey Mack
      wrist pin bushings.

      By Joey Mack · Posted

      Oh hell thats nice.. pricy too.. 

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    • Joey Mack

      Joey Mack

      Well Artemis 2 is doing great. Pray for them to have a safe return to Earth...
      · 0 replies
    • TJ Lincoln

      TJ Lincoln  »  A Hobgood

      This is the current condition of my 47 EE project. The rebuilt EN271 is out and we are in the process of checking the fit of a big block Ford. It is the same truck that’s in my thumbnail photo taken a few years ago. I have managed to acquire all the new rubber cab seals and many are installed. I have a painless harness as well. 

      That engine and trans are on a pallet and probably weigh around 900. I believe the clutch is new and the trans was gone through. 
      Louisiana is a fair distance from the middle of Washington!
      That said, all the cab rubber body parts had to come from Massachusetts and it took over 3 grand for all the window, door, cowel, fender and more pieces to get everything. I found some parts back east but they are not cheap.  
       



      · 0 replies
    • mowerman

      mowerman  »  1Macktrk

      Hey, welcome my board and have a swinging time… bob
      · 0 replies
    • Lmackattack

      Lmackattack

      HO HO HO

      · 0 replies
    • the_IRFmack

      the_IRFmack

      - I double sticked and old Mack to feed a stone crusher in 12 and 14 hour shifts six days a week all summer to pay for my chemistry degree.
      - Because I wanted to sleep for 1 min and 26 seconds each trip out of the quarry at the crusher's vibratory dump box at the top the quarry during those 12 hour shifts, I bulled the old MACK up long 20 degree and sometimes steeper grades.
      - THAT meant that I split each gear 1, 2, 3 after coming out of boggy low.
      - All I did was rev to the right engine note, reach my left arm down through the steering wheel to hold the curve I was on or hold the truck's path steady; slip out of 1st, throw the 2nd stick high into low and slip into 2nd gear... rev to the right engine pitch, slip to high.
      - Then when it was time, reach through the wheel again, slip high to low and 2nd to 3rd {if I correctly remember 60 years ago}.
      - The Igneous rocks were too heavy and the grade too steep for me to ever get into 3rd high.
      - The crusher team were the mechanics for everything and had replaced the old Mack's tranny gears because they had been ground too much. - - They later told me they didn't believe me when I told them I slipped all my shifts because the gears showed no wear.
      - Except for start and stop; Not once did I use the clutch because that made my leg ache too much after an hour or so.
      - I slipped all my standard 4 speed shift vehicles all my life...just to be with the music of the engine and car or truck.
      · 0 replies

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