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HybridZ

pricebill

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  • Website URL
    http://newmansownteam.com

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  • Location
    Venice, CA

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  1. @seattlejester yes, I suppose it is cylinder number 6 that is featured here. Good advice on the flushing of engine after racing. Quite frankly we're complete mechanical amateurs and surprised in our attempt to get this engine back in shape for a THIRD attempt at a Lemons finish. Gluttons for punishment. Sorry to say that I don't have compression numbers before head removal. Amateur mechanics at work. The day before we pulled ithe head I purchased a leakdown kit from Harbor Freight and didn't even bother when I saw how much water was mixed with oil in our poor engine. A trusty Sears compression kit was also standing by but in our naivety we just didn't even bother. Next time. LA Machine Shop is two blocks from my house and I'll take the head there on Monday morning for a professional eval. We'll see if NewZed correctly diagnosed a warped head/blown gasket on the other side of the internet. Thanks to both of you for offering sage advice to a bunch of idiots.
  2. Agreed on the rusty water and lack of corrosion inhibitors. Lemons race rules allow only water on the track, no coolant. Here's a full pic of the head gasket. Close examination of it doesn't reveal any tears or missing pieces.
  3. Happy New Year everyone. I'm a complete newbie at diagnosing engine failure and thought I'd see if forum members might be able to help. Our 280Z has been racing in the 24 Hours of Lemons and appears to eat bad made-in-China water pumps. During our last race we replaced failed pumps twice and then found water in the oil. Thinking the head gasket was blown we pulled the head a few weeks after the race and found excessive water/rust in cylinder 1. The engine started and amazingly ran before we pulled the head. The head gasket itself appears to be in good shape; do we have a cracked block? Pictures attached and opinions desired. Thanks in advance. Cylinder #1 as it looked when we pulled the head. Here's the head showing rust just on cylinder #1. Here's cylinder #1 cleaned up and rotated down to check for cracks.
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