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yetterben

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Posts posted by yetterben

  1. The local founder of a Minnesota z car club forum has graciously donated a l28et block with a blown head gasket to me.

     

    In all my years as a auto tech and enthusiast i have never rebuilt a motor. I was a little worried. I have built plenty of Rotary and many custom 3 and 4 rotors just never a "BOINGER" This has been a learning experience. This is something i have been meaning to do for years. Its time i learn to rebuild a piston motor. Its just the cost right now is not in the books. I need my car at least driving. So with his gracious donation hopefully i will be up and running. gonna keep it at 10psi for some time until i can master building motors. It's always been so daunting to me because of all the specs and measuring. There is not much of that in a rotary build.

  2. Well in a freak over boosting yesterday i destroyed my ring lands. I only removed 5 and 6 i am sure the others are the same. Cyl 6 at the bottom of the bore actually has a chunk missing...of the bore!!!!!!!!! So i am left with a block that is worthless. Crank seems unscathed. FAWK i wish a rod came threw the side of the block it would have been cooler.......... :D

     

    If yah look close you can see the skirt is cracked too. I have the datalog from when this happened and i was not lean nor was it hot 180 to be exact at the head sensor. Which leaves me to timing which is locked in at 18 but the boost spiked to 18 or so.

     

    Car hauled ass for oh......3 seconds until poof out came the magic smoke.

     

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  3. Running fuel only. Nah its not the dizzy shaft as i pulled it out to check when i dropped in my new dizzy. It does not smooth out unless i back off the throttle a hair. say to 85% or so.

     

    Using a zx dizzy locked at 18 total advance. Flamethrower coil. Plugs gaped to .020. Can't gap any smaller without a way to measure. Running br7es. Was gonna try the protruded plug to see if it makes a difference.

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