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!!!!Big problems with new motor that came from no where!!!!!

This is a discussion on !!!!Big problems with new motor that came from no where!!!!! within the General Help forums, part of the LSx Technical Help Section category; Well after i got done christmas shopping and was headed back to work, i started it up it made a ...

  1. #1
    dbl clutch'n like i shld WICKEDLS1's Avatar
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    Angry !!!!Big problems with new motor that came from no where!!!!!

    Well after i got done christmas shopping and was headed back to work, i started it up it made a weird noise then started bellowing smoke out of the exhaust.
    (mods to car in sig) first thing to go through my head was a blown head gasket due to the color of the smoke, however it doesnt have the sweet smell that coolant ususally
    does when it gets burnt. not to mention i allowed it to cool down and checked the radiator and it was completely full of fluid. Well i babied it back to work so that i wasnt stranded, along the way it started popping and backfiring along with missing and pouring tons of smoke. (i couldn't see the car behind me it was so bad). Any ways i started it to try and move it after it sat the rest of the day at my work and it went straight to redline with no hesitation. i shut it off immediatly and haven't touched it since.

    any ideas on what this could be? needless to say im not happy that my BRAND FREAKING NEW MOTOR MIGHT BE TOAST!!!!!

    any and all help would be greatly appreciated

    edit: this new motor hasn't had any power adders on it yet just an fyi
    2000 ss camaro, forged lq9 370 short block, stage 3 PRC 243 heads, fast 102 w, big mouth throttle body, MS3 cam, 1.7 roller rockers, stage 3 t-56, monster stage 3, pro 5.0, 4.10's with moser axles, bmr tq arm, lca's, phb. SOLD (thankfully)!!!

    New project: 1968 step-side, partial restore, ls/th400 swap. hopefully boosted pics and more info to come!!!


    Having a small cam is like having a small dick, everytime you go to use it you wish it was bigger

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    She-Member jrbonds's Avatar
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    Um wasn't that a USED block you bought from Craig? Did you guys rebuild it or just throw it in?

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Pull the valve covers and check from a broken spring. What does the oil look like?

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    New bearings, rings and seals completely gone through

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    Quote Originally Posted by ls1camino View Post
    Pull the valve covers and check from a broken spring. What does the oil look like?
    oil looked okay, not milky that i can tell and hopefully ill have it towed to my buddies dad's shop tonight so i can pull the motor out and start tearing into it

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    She-Member jrbonds's Avatar
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    Quote Originally Posted by ls1camino View Post
    Pull the valve covers and check from a broken spring. What does the oil look like?
    Thats what I was initially thinking.


    Just pull the valve covers off first. Might be simplier.

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    Quote Originally Posted by jrbonds View Post
    Thats what I was initially thinking.


    Just pull the valve covers off first. Might be simplier.
    To see if its got a broken valve spring?

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    She-Member jrbonds's Avatar
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    Quote Originally Posted by WICKEDLS1 View Post
    To see if its got a broken valve spring?
    Yes. Are those new valve springs or the leftover stuff from the motor that came with the car?

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    There the springs that were on the other motor, but dual spring .650's with titanium retainers so I dont see how this cam would have broken them but its worth checking

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    I like turtles GTP231's Avatar
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    Does your map have a loose fit in the intake or is it a good tight seal? Gone nuts trying to get them to seal in the past on 90s. Just an idea before you yank the engine out.

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    its pretty tight from what i can tell by feeling it but ill check it again tomorrow when i get up to the shop

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    Former Mopar Man 2002ssslp's Avatar
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    Did you stager the piston ring end gaps or put them in straight up and down ?
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
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    A leaking injector or fuel pressure regulator can fill the intake port. Then hydrolock a cylinder, that would cause the noise. It will also raise the oil level and cause it to smoke. If the gas gets in the exhaust system it will also smoke. Look for easy fix first.

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    I like turtles GTP231's Avatar
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    Quote Originally Posted by WICKEDLS1 View Post
    There the springs that were on the other motor, but dual spring .650's with titanium retainers so I dont see how this cam would have broken them but its worth checking
    Springs can weaken with age. Sometimes things just break unexpectedly

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    Smiles for 9.5 Years cammed goat's Avatar
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    Any updates Brendan?

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    Sorry been gone for a while but the problem was WAY worse then though but not as bad as it could have possible been

    turned out the last rocker arm on the passenger side head broke completely out, heads were ported MASSIVELY and it was paper thin in that area so it was a matter of time i guess



    called a buddy that welds aluminum to see if it was fixable and he said it was too thin and would just melt through so i just scrapped them and sold the titanium valves that were in them.
    luckily i had a pair of 241 heads sitting around so i just swapped the valve springs and retainers and put it all back together then sold the damn thing. tired of messing with it and need to spend money elsewhere on more important things like saving for a house etc..

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    She Moderator KahanaReef's Avatar
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    Took a nice little chunk out didn't it... Sorry you decided to sell it. But, sometimes other things are more important.

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    Spaz is My Mentor SMWS6TA's Avatar
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    Last edited by SMWS6TA; 03-29-2013 at 09:56 PM.

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    Quote Originally Posted by KahanaReef View Post
    Took a nice little chunk out didn't it... Sorry you decided to sell it. But, sometimes other things are more important.
    yup my buddy pulled the passenger side valve cover while i pulled the dr side one and he was like hey uhmm isnt there supposed to be a rocker arm there? but dont worry ill have something else to fulfill my horsepower needs here shortly especially since my 4 cyl DD has no balls lol

    Quote Originally Posted by SMWS6TA View Post
    I know right!!

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    She Moderator KahanaReef's Avatar
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    Quote Originally Posted by WICKEDLS1 View Post
    yup my buddy pulled the passenger side valve cover while i pulled the dr side one and he was like hey uhmm isnt there supposed to be a rocker arm there? but dont worry ill have something else to fulfill my horsepower needs here shortly especially since my 4 cyl DD has no balls lol
    That's a given

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