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Dauntless 225 Questions

Discussion in 'Early CJ5 and CJ6 Tech' started by PR66, Oct 4, 2007.

  1. Oct 4, 2007
    PR66

    PR66 New Member

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    I am considering purchasing a CJ-5 with the Dauntless 225. It has approximately 90,000 well-maintained miles on the engine and has never had any internal engine work/repairs.

    I have heard that the odd-fire engines are hard on timing gears. Since this engine has never been apart, is this something that I should be concerned about changing soon?

    Since the heads are original and have never been out of the Jeep, the valve seats have not been hardened. There does not appear to be any problem currently - no smoke, excessive ticking, etc. but is this going to need to be addressed?
     
  2. Oct 4, 2007
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    My opinion... Put a timing chain / gears/ tensioners in it and go... Edelbrock sells a timing set that eliminates the tensioner, you could go that route also....

    edit> My 67 has 98K on it now. I bought w/ 42K, replaced the timing chain shortly after, and I use CD2 lead substitute. Been fine so far....
     
    Last edited: Oct 4, 2007
  3. Oct 4, 2007
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    what Patrick said
    I don't think the 225 is harder on them than any other engine.
    chains can stretch and the cam gear is plastic; it gets brittle and the teeth break off.
     
  4. Oct 5, 2007
    stalin440

    stalin440 member

    Elmira, NY
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    if it ain't broke don't fix it....maybe a tune up if due for one. :beer:
     
  5. Oct 5, 2007
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Yes, PM is a good idea in this case. Put in a new timing set and drive it.
     
  6. Oct 5, 2007
    PR66

    PR66 New Member

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    Is it ok to put un-leaded gas in a stock Duantless 225?
     
  7. Oct 5, 2007
    MOP

    MOP Active Member

    Pullman, WA
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    I do it....
     
  8. Oct 5, 2007
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Like I said;)
     
  9. Oct 5, 2007
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    The early unleaded gas was a problem in engines with unhardened seats, primarily in heavy load applications or high performance engines. Modern unleaded gas has additives to address the problems of lubricity that the tetraethyl lead took care of in leaded gas. If it makes you feel better, by all means put in an additive, but really not necessary. As far as the timing chain goes, I'd put in a stock replacement with steel gears that does away with the tensioner. I had an longevity issue with the Edelbrock set I put in my even fire 231 and won't install another one. I put in a quality stock steel replacement set and have had no problems since. I've never had an issue with any other of Edelbrock's products however. Nickmil
     
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