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> Engine carnage, Incorrect clearance
nine14cats
post Sep 16 2004, 08:54 PM
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Bill Pickering -- 914-6 GT aka....Leeloo
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As many of you know I missed a shift earlier this year and blew up my 2.7L 6 at Buttonwillow. I'm currently building a new car with a 3.6. I sold my burned up motor to a raceshop and they tore down the engine. What they found was that I did not bend valves as suspected. I broke the rings on every cylinder due to incorrect head clearance.

My missed shift was going to do damage, but not this much if the machine shop I used had done the clearancing correctly. What is interesting is that on the last rebuild I did with this engine, I used a large, nationally know engine machine shop and thought I was safe.

Even if I didn't miss a shift, my engine was living on borrowed time. It appears the pistons and heads were touching. It kinda makes me lose faith in everyone I talk to in this business. I'm not a master mechanic, but the lack of of attention to detail I have run across over the past 2 years has been really disappointing. Maybe I'm just cursed.

Anyway...here's some pics of what happens when your P's hit the heads.

Bill P.


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fiid
post Sep 17 2004, 11:10 AM
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Turbo Megasquirted Subaru Member
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I gots to say this.

If your machine shop did not give you what you ordered, and that gave you engine carnage, they at least owe you a new set of the correct parts. If it's a one in a million event, then they will be able to cost in their defect rate quite cheaply, since the cost of it will be divided by a million.

That's just how it is. If you go to a dealership and give them $40,000 for a Lexus, you would not take a Ford Focus because the runner picked out the wrong car. Admitted - that would be a little more obvious, but if you are in the machine shop business, accuracy has to be what it's about.

Now - if the wrong thing got ordered - that's a different problem.

I also think you or your builder should have checked the parts prior to fitment, but that's easy to say in retrospect, and a step that I probably would have skipped as well. In software as well as life - it's always good to check your inputs.

Regardless - sorry this happened - it's a big bummer. I'm sure you'll enjoy the 3.6 though.
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