Jump to content

Forums

  1. The Lobby

    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!

      10,664
      posts

    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...

      3,710
      posts

  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.

      95,039
      posts

    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.

      22,796
      posts

    3. 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!

      1,341
      posts

  3. Specific Topic Forums for Antique & Modern Trucks

    1. Engine and Transmission

      This forum is for engine and transmission related topics

      36,252
      posts

    2. Driveline and Suspension

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

      10,231
      posts

    3. Air Systems and Brakes

      This forum is for Air System and Brake related topics

      4,373
      posts

    4. Electrical, Electronics and Lighting

      This forum is for electrical, lighting and mobile electronics topics

      5,649
      posts

    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!

      8,740
      posts

    6. Fire Apparatus

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

      8,774
      posts

  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.

      93,523
      posts

    2. Trucking News

      News and information from the entire trucking industry

      24,345
      posts

    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.

      16,310
      posts

    4. Tractors and Equipment

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

      5,167
      posts

  5. Market Place

    1. For Sale

      For Sale Classifieds

      15,569
      posts

    2. Wanted to Buy

      5,705
      posts

    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.

      273
      posts

    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...

      755
      posts

    5. Watt's Truck Center   (44,937 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.

      524
      posts

  6. Shows and Events

    1. Truck Shows and Events

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

      5,634
      posts

  7. Site Related

    1. Site Related Topics

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

      1,909
      posts

    2. BMT Wiki Support Topics

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

      288
      posts

    3. Test Forum

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

      360
      posts

  • Upcoming Events

    No upcoming events found

  • Latest Topics

  • Latest Posts

    • 41chevy
      1947 type 45 issues

      By 41chevy · Posted

      The wobble could be simple as misadjusted wheel bearings, worn tie rod ends or a worn drag link to worn king pins, start at the easiest the bearing just because the drums were off to do the brakes and than check the balance for wear. Tie rod ends and drag link end are rebuild-able and I believe may also have some adjustment one the ball and socket . The 6 volt electrics work the same as 12 volts only less voltage more amps. Has the system been converted to negative ground or is it positive ground? Lighting start with basics like fuses, bulbs, grounds, switches and finally the wiring harness.  Beacon turns than look to the light contact between the motor shaft and light head. Sometimes the contacts loose their tension so no power to the bulbs when it spins. Just on g.p. I would replace the rubber brake hoses, you only have a single master system and just for peace of mind I would do all the rubber lines. Good luck with you Mack and post up some pics when you can.    Paul
    • AZB755V8
      E9 Fuel In Oil

      By AZB755V8 · Posted

      I have had fuel on top of the injectors when removing the caps but not enough to get by the treads or raise the oil level. The reason I did it was there was a miss in the engine. In my case it was a bad injector. I need to learn as well here. If the O-rings were bad the only way the fuel would get into the oil would be coming up through the  hold down cap treads. The only way that would happen is if there was back pressure in the return lines. Is that correct? Just asking but 3-5 gallon of fuel is a lot to get past something, be it B&P's or O-rings. That is low pressure side of the system. To check the O-rings it would be EZ to put air pressure through the return line and check for bubbles at the caps after valve covers are removed with a little spray of soap. 
    • fjh
      E9 Fuel In Oil

      By fjh · Posted

      I would chectk the injectors before blaming the pump lift the valve covers off and pop out each injector hold down check for fuel on top of each injector! Injector oring failure will cause this as well!
    • Engine 165
      1947 type 45 issues

      By Engine 165 · Posted

      Hello I just purchased a 1947 type 45 . Runs like a sewing machine .  Brakes stick and front end is wobbly when hitting a bump in a turn .  I guess my first issue is the lights don't work ... the siren does and the beacon on top turns but doesnt light up no taillight headlights or pump lights is one issue .  The guy I bought it from suggested replacing the rubber brake lines to fix the brake sticking issue he replaced the hydrovac and wheel cylinders and master .  Also I am very mechanically inclined just not with 6 volt positive.   Any help would be appreciated.   I'm new to owning old Mack's but love to wrench just looking for some advice I guess . . 
    • yarnall
      Pair of 1954 B75F Fire Trucks still working together 64 years later

      By yarnall · Posted

      John. Great story but I think you have your serial numbers wrong. Mike
    • yarnall
      Gerhart trucks for sale and truck graveyard

      By yarnall · Posted

      Most of the trucks in the boneyard were not used in the business.  In the past I believe Roger Gerhart has bought trucks to sell, to save from the scrap dealer or just because he liked them.  I have not noticed any new acquisition recently.  He is a really nice guy.  If you see him you should ask him. Mike. 
    • B MACK
      Some Truth or Consequences NM pictures

      By B MACK · Posted

      I also like that big wagon.    Good chance  it has a nice little 429 under that hood.
    • AZB755V8
      E9 Fuel In Oil

      By AZB755V8 · Posted

      The issue is fuel getting into the oil not "bypassing oil into the fuel somehow". The injection pump has worn barrels and plungers. They actually put the fuel pressure to the injectors at 4000 psi. You are not going to find a leak with 45 psi of air. The B&P seal with metal to metal and very tight clearance between the two parts. So tight that fuel can not get passed until the parts wear and clearance opens up and leak fuel passed into the oil in the pump which drains back into the engine oil pan.  You need a injection pump rebuild or find a good used pump. The charge pump is not the problem. Change the engine oil ASAP, bearing will be going out with that much fuel contamination.   By the way WELCOME to BMT!!    

  • Recent Status Updates

    • Ky x driver

      Ky x driver

      Just a newbie who bought a farm wagon built on an old Mack truck frame. It has 20 inch Dayton style wheels. Eight spoke hubs with 4 lug nuts per hub. Single rear wheels. The 3rd member has been removed from the rear end. It has mechanical brakes which still work . Depending on the cab configuration it may accept a 10-12 ft. bed. Any ideas what model this was? I'm guessing 30s but have no clue. Also has all 4 small Mack hub caps
      · 1 reply
    • megatron

      megatron

      Seriously I'm reading about people (Mack owners) complaining about mack power loss, and I'm a driver all my life in the Mack. My 1999 CH 613 was so reliable truck sold with 2 milion miles never problem with anything, but reason to sell was loss of power, gears droped uphill with empty Double drop trailer. Now I have nice ride (compared with CH) CXN613 that was so strong that Pete with C15 Cat could not run away from me on big hills.... until same thing happens. One day it starts idling 500rpm I fix that but turbo boost drops from 40lbs on hill to 28-30  dropping gears on every hill and nobody knows why. I learn a lot about Macks and trust me it's still good solid truck compare to others but this issue really getting on my nerves and I wish that someone of this Mack specialist can answer this Virus attacking this engines, I didn't run into nobody yet but those part changers to ask me did I check this and that...filters 🙄🙄🙄, or telling me it maybe this maybe that. I can't listen to it no more. I love this stubborn trucks but if they don't fix this issue I will be forced to.... buy another MACK 
      · 1 reply
    • Ezee

      Ezee  »  mrgumby

      i had bridgestones. changed all last week that stopped it.
      · 1 reply
    • fjh

      fjh  »  BOB DINGSDALE

      Bob!  I heard it rummored John Casnave is building trucks again is this true?
      · 2 replies
    • MackLTH

      MackLTH  »  AZB755V8

      AZ, I was looking at the LTL in your album..did you buy Itchy's LTL from California?
      · 1 reply

  • Today's Birthdays

    1. ConcFour
      ConcFour
      (70 years old)
    2. InKWtrucker
      InKWtrucker
      (52 years old)
    3. Mike Blais
      Mike Blais
      (57 years old)
    4. Noid93
      Noid93
      (33 years old)
    5. Stan
      Stan
      (65 years old)
    View all

  • Blog Entries

  • Blogs

  • Forum Statistics

    • Total Topics
      49,807
    • Total Posts
      384,923

Welcome to BMT!

...The world's best antique, classic & modern Mack Truck support forum! Founded in 2000, BigMackTrucks.com is the place to go for everything related to Mack Trucks!

Links

BMT!

BigMackTrucks.com is owned and operated by Watt's Truck Center, New Alexandria, PA. This forum and it's contents are not affiliated with Mack Trucks, Inc. or Volvo Trucks North America.

×