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Thread: Joytona

  1. #21
    Supporting Member Turbo Mopar Contributor 2.216VTurbo's Avatar
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    Re: Cracked Piston What Would You Do?

    Quote Originally Posted by masterjr33 View Post
    pop a used piston in it. and get back to driving it. I would pull the injectors and have a local shop clean and check them for you.
    might look a bit lean over there.
    This, plus I'd throw rod bearing at it as well. Too cheap and easy not to tighten up the bottom end just a wee bit.

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  2. #22
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    Re: Cracked Piston What Would You Do?

    yes that is a great idea too. might even wanna slap all new mains and rods while it is apart. or at least look at the mains. and rods to decide if you want to do the rest.

  3. #23
    Supporting Member Turbo Mopar Contributor GLHS60's Avatar
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    Re: Cracked Piston What Would You Do?

    Correct: Sealed Power E453K

    Thanks
    Randy

    Quote Originally Posted by iTurbo View Post
    I like the Sealed Power rings. Never had a problem with those. For the most part, they've checked out gap-wise right out of the box.


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  4. #24
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    Thanks for the part number. Amazon had a seller which was way cheaper than any alternative.

    What do you guys do for a hone? I've done the three stone type hone in the past, and still have it. I've heard that a ball hone is a much better way to go though. Would that be a way to go here? I'm trying to get all my ducks in a row. I would like to have this project finished up before August, but a lot of the little things I always like to do will be piling up on this car as it is.

  5. #25
    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: Cracked Piston What Would You Do?

    if the cylinder might be tapered and have some ring ridge I might go with the ball hone over the three stone one as the ball should give a more consistant cut where as the stones might bridge any gaps and not cut some areas the same as others

    for giggles I'll add you would be shocked at how I deal with a stored motor that has a little rust in the cylinders
    I put it on an engine stand , turn it upside down and "hone" it by hand with some wet n dry sand paper and a squirt bottle full of varsol
    yep , that's with the crank rods and pistons still in it
    I wash it out from below then again from the skirts of the pistons towards the tops , with it still upside down

    never had any issues doing this and the last motor I did it to was the engine in the blue 86 that used to be pictured in all my posts on td - I drove that for three years

  6. #26
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    Thanks for that info. I'm feeling a lot better about this now. I just don't want to put the time and money into it only to have things go awry. I've done it before with total success, so I guess I should stop being a baby about it.

  7. #27
    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: Cracked Piston What Would You Do?

    oh it's ok to feel ya have to say waaaaaa once in a while

  8. #28
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    OK, hopefully last question for a while. Where do I get some replacement locks for the wrist pins?

  9. #29
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    Re: Cracked Piston What Would You Do?

    if it was a 2.5 mahle i would just mail you one of mine.
    someone has a spare. or just re use yours

  10. #30
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    Re: Cracked Piston What Would You Do?

    Quote Originally Posted by cordes View Post
    OK, hopefully last question for a while. Where do I get some replacement locks for the wrist pins?
    I might be missing something but aren't the lightweight rod engines press fit?

    Not sure about the lock, they typically come with pistons, I'd reuse, just make sure it goes in snug.

    Oh and I broke many pistons like that back when, typically from detonation or too much cylinder pressure. In my case too much boost and throwing nitrous at it.

  11. #31
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    Yes, the LW rod pistons are a press pin. I'm swapping to TII rods and pistons which I have had in my basement though. I'm not sure I have all the retainers. That's not good I guess.

  12. #32
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
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    Re: Cracked Piston What Would You Do?

    You should be able to get circlips for the TII pistons. They are more secure than the snap rings.

  13. #33
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    Re: Cracked Piston What Would You Do?

    Let us know how it goes. The last set of e453 rings I purchased had a different style oil expander and it was very tight in the bore. I ended up using the expander rings out of a set of na rings.

  14. #34
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    Re: Cracked Piston What Would You Do?

    Gaboon is right, that's detonation. Seen it many time before. Recheck base timing, maybe back it off a touch, maybe time for install a wideband to keep an eye on a/f ratios.

  15. #35
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    Re: Cracked Piston What Would You Do?

    I really wise everyone would look at the cylinder heads and not the piston. its lean as hell on two cylinders..

  16. #36
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    Quote Originally Posted by masterjr33 View Post
    I really wise everyone would look at the cylinder heads and not the piston. its lean as hell on two cylinders..
    That's my thought. It has been a while since I've read up on the batch fire ECUs, but it does fire 1&2, and then 3&4 right? Both Cylinders being that lean make me think that there must be a problem with either the ground/12v for those two injectors, or the power module itself?

  17. #37
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    Re: Cracked Piston What Would You Do?

    Do you have a code 26? Yes 1-2 are paired, as are 3-4 injector drivers.

  18. #38
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    Quote Originally Posted by shadow88 View Post
    Do you have a code 26? Yes 1-2 are paired, as are 3-4 injector drivers.
    I didn't pull the codes, but I will when I get everything back together.

    The CEL wasn't on to my knowledge.

  19. #39
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    Re: Cracked Piston What Would You Do?

    it looks like those two cylinders are crazy lean.
    wouldnt want you to bolt it back together just to have the same problem.

  20. #40
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Cracked Piston What Would You Do?

    Quote Originally Posted by masterjr33 View Post
    it looks like those two cylinders are crazy lean.
    wouldnt want you to bolt it back together just to have the same problem.
    I will be watching it closely. I think I'll attempt to flow test the injectors and I may redo that section of the harness.

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