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225/231 timing chain/'damper' ??

Discussion in 'Early CJ5 and CJ6 Tech' started by dakardad, Jan 29, 2011.

  1. dakardad

    dakardad New Member

    When I disassembled my 231 I was AGAST at the amount of slack in the timing chain. Id never seen any chain have so much slack. So much so, the tensioner/damper thingy was flopping.
    As I rebuilt the thing, I wondered about the chain 'damper' thingy. Is this an essential replacement part? Actually there are two.
    Whats up and how important are they with a new chain. Given the apparent apatite for chains the 231 has (dont know really, my first one), is it better to just replace more frequently??:?:?:?

    Experts please.......
     
    dakardad, Jan 29, 2011
    #1
  2. sparky

    sparky Sandgroper Staff Member Founder

    If you have the factory style chain you should have tensioners included in the TC kit.

    Double-roller replacements do not have them.
     
    sparky, Jan 29, 2011
    #2
  3. Patrick

    Patrick Super Moderator Staff Member

    Correct, and I believe the single roller does not use the tensioner either, as (with either one) the roller chain would tear up the tensioner. The tensioner is only used with link-belt type chains..
     
    Patrick, Jan 30, 2011
    #3
  4. dakardad

    dakardad New Member

    Thanks for your inputs.
    The stock set up is what I would describe as a fixed guide, while the other is a spring loaded affair. Are both necessary?
    No, my TC kit did not include the dampers. I have to buy separately. This is the first 231 I have ever rebuilt so I didn't know what to expect.
     
    Last edited: Jan 30, 2011
    dakardad, Jan 30, 2011
    #4
  5. Patrick

    Patrick Super Moderator Staff Member

    I replaced my first one with a factory style link belt and tensioners (although steel gears rather than the factory plastic cam gear), but all the ones I've done since then (3 of them) I've installed a double roller and eliminated the tensioner.
     
    Patrick, Jan 30, 2011
    #5
  6. Pack Rat

    Pack Rat Old Timer

    If you're not using a double roller then yes they are both necessary. I might have the part numbers here somewhere, your local GM dealer might still be able to get them, NAPA other parts suppliers maybe??. I got a couple of sets from GM a few years back, I'll see if I can find them.
     
    Pack Rat, Jan 30, 2011
    #6
  7. eddiememphis

    eddiememphis Knuckle Buster

    NAPA has 'em. NTP 95158 for the spring loaded. NTP 95045 for the stationary. $6 or so each. I reused mine, they weren't too worn. It's the nylon cam grear that wore the most. I used a Comp Cams kit, it was $40.

    Before-
    [​IMG]

    After-
    [​IMG]
     
    eddiememphis, Jan 30, 2011
    #7
  8. Pack Rat

    Pack Rat Old Timer

    Thanks for saving me having to run out to the cold cold shop to try find those parts :rofl:.
     
    Pack Rat, Jan 30, 2011
    #8
  9. eddiememphis

    eddiememphis Knuckle Buster

    You're welcome. We have to look out for our northern cousins.

    NAPA has a surprising amount of parts for these old beasts. When you talk to them, or look them up online, make sure to use the word Kaiser. My local NAPA boys have had everything in stock... so far.
     
    eddiememphis, Jan 30, 2011
    #9
  10. nickmil

    nickmil In mothballs.

    I used a Cloyes replacement single row timing chain that did not use them.
    That was after the Edelbrock double roller became so sloppy after relatively low mileage I couldn't accurately set ignition timing. Haven't had an issue since and that was around 15/16 or so years ago.
     
    nickmil, Jan 30, 2011
    #10
  11. dakardad

    dakardad New Member

    Well I tried NAPA but it was special order. When it came in it was wrong. I found-in stock no less-the spring loaded one at an Autozone. I think it will be OK. I'll just plan on an early chain and pick up all the parts beforehand.
    Seems like a hoky set-up.
    Thanks everyone!

    What does bunny with a pancake mean?
     
    dakardad, Jan 31, 2011
    #11