Results 1 to 7 of 7
  1. #1
    RC poster
    Join Date
    May 2018
    Posts
    4

    Try 3.3 how many crank bearing seals?

    I just put new bearings in my trx 3.3 and both bearings had seals in the front and back of them. Was I supposed to remove those seals on the rear bearing?

  2. #2
    Marshal Double G's Avatar
    Join Date
    May 2008
    Posts
    13,498
    Were they bearings made specifically for the engine? I've pulled the rear seal from the front bearing and both seals from the rear - and installed the rear bearing with the race towards the back.
    The Super Derecho

  3. #3
    RC poster
    Join Date
    May 2018
    Posts
    4
    Quote Originally Posted by Double G View Post
    Were they bearings made specifically for the engine? I've pulled the rear seal from the front bearing and both seals from the rear - and installed the rear bearing with the race towards the back.
    Yes, they were fast eddies sealed bearings for trx 3.3. The bearings looked the same on both sides. I just threw the small one in front, and the big one in the rear. I left both seals on both bearings. What does leaving, or removing the seals do?

  4. #4
    Marshal Double G's Avatar
    Join Date
    May 2008
    Posts
    13,498
    Removing the seals allows the oils in the fuel to lubricate them. Plus the seals add a little drag.
    The Super Derecho

  5. #5
    RC poster
    Join Date
    May 2018
    Posts
    4
    Quote Originally Posted by Double G View Post
    Removing the seals allows the oils in the fuel to lubricate them. Plus the seals add a little drag.
    Will having all the seals still on hurt the bearing, or anything else?

  6. #6
    RC Qualifier westoakmech's Avatar
    Join Date
    Dec 2011
    Posts
    915
    Quote Originally Posted by Rust bucket View Post
    Will having all the seals still on hurt the bearing, or anything else?
    It should not hurt anything, the bearing should still get oil in it, it would just get in there bettter if the seals were removed. You have to remomber that little engine revs in the 30,000 rpm range. So any advantage to get oil to the bearings to keep them cool and lubed is better
    Rusty 2.5R,T-max 2.5 & 3.3,Summit VXL Nitro 4-tec

  7. #7
    RC Turnbuckle Jr. Nitronaught's Avatar
    Join Date
    Oct 2005
    Location
    South Florida
    Posts
    19,487
    I've used these for years. IMHO well worth the money.
    https://www.avidrc.com/product/1/bea...-bearings.html
    https://www.avidrc.com/product/1/bea...-bearings.html

    Only the front one should have 1 seal on it facing the outside for best lubrication.
    All Lives Matter
    United We Stand, Divided We Fall

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •