Recent content by flyinwrenches

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    Do I need a thicker head gasket or not?

    They didn't measure anything. They refuse to assemble any of it, as stated above. There is no way for them to measure piston protrusion without the pistons in it. They are just guessing on it. I understand the heads gasket thickness dont affect compression, but it does affect valve clearance. I...
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    Do I need a thicker head gasket or not?

    That is great to hear, when I get my parts back, I will take all the measurements and compare them to my info I have then. Thank you so much! That eases my mind on it. I get caught up on specs and trying to be perfect. I have OCD and if something does match spec information, then I literally get...
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    Do I need a thicker head gasket or not?

    I guess the best course of action is to just bring the information I have to the machine shop and discuss it with them. I just really dislike these guys thats doing the work though. They told me that they would not warranty the build if I did the assembly. So, I told them go ahead and build it...
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    Do I need a thicker head gasket or not?

    Here is the info I have am referring to... "Measure the cylinder head for warpage with a straight edge and a feeler gauge. A cylinder head block deck with warpage in excess of 0.1 mm (0.0039 in) must be replaced" Edit-Oh, and by the way, they didn't recess the valve seats any. They are still at...
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    Do I need a thicker head gasket or not?

    Sorry, this is just bugging the crap out of me. I can't let it go. The rebuilding info I have says that the maximum warpage for a head should not exceed .0039. If it exceeds this, then replace the head. That means you could only cut .004 off the head before you have an issue. They cut .007 off...
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    Do I need a thicker head gasket or not?

    Forget it guys, I am overthinking the crap out of this. I was wanting things dead on precisely. But, I am just going to measure the protrusion and get the gasket from there. The valve clearance will have to be addressed in the head by the valve recess measurement. If you try to change it with a...
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    Do I need a thicker head gasket or not?

    My thinking is, by machining .007 off, then your essentially bringing the valve down .007 closer to the piston at tdc. So, to account for this, I was going to measure piston protrusion, and take the measurement I get, and just add on .007 to it. Then, pick the head gasket from there. Is that...
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    Do I need a thicker head gasket or not?

    Ok, understood. I shouldn't be judging them then. I didn't know that about the camshaft. I am getting it keywayed because the whole reason the engine went down initially was a failed cam pin. The valve clearance was what I was wondering about. I know that measuring protrusion is the super...
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    Do I need a thicker head gasket or not?

    To elaborate a little further. I need to figure out if the clearances fall into spec for assembly. I have a deck bridge to measure piston protrusion. So, I am just thinking about taking the 7 thousands that they took off and just add that to whatever measurement I get on the piston protrusion to...
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    Do I need a thicker head gasket or not?

    So, the machine shop I have my engine and heads at said they took 5 or 7 thousands off when resurfacing the head. They said that I just needed to get a factory thickness gasket...I dont know about that. I don't think that they do many duramax engines. I wanted them to cut a key seat in the cam...
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    DK pistons, junk or good?

    Agreed, I apologize guys. Consider it let go
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    DK pistons, junk or good?

    See the blue o ring. That's all that seals the fuel from dumping down the cylinder. Also, that injector is ecm controlled, but if the o rings fails, it don't really matter. If you keep driving, things can get real bad...depending on how much fuel is bypassing down into the cylinder. The tiny o...
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    DK pistons, junk or good?

    Ok, well what I was saying is the start of injection on a c15 is a set variable, unless you adjust the cam timing, which would cause bigger issues....well, the ecm controls it on newer ones, the acerts, and to a degree on the older ones, but what I was saying is if the injector o ring fails, it...
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    DK pistons, junk or good?

    I think where we were getting off is that you are thinking about injection timing and I am still stuck thinking old school. You probably know this, but injector timing on a c15 caterpillar engine, for example, is set by the camshaft timing. Its a hard setting. It has a injector rocker arm that...
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    DK pistons, junk or good?

    Oh, and also, on the cooler topic thing, I know it was gas related, but I was just lumping all pistons together, gas, diesel, propane, or whatever....just pistons in general. I work on gas ones too...sometimes. Also, as far as my experience, you guys are way way more experienced than me on the...
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