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Showing results for tags 'camshaft'.
Found 6 results
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I'm trying to diagnose a few things on my 75 280z 2+2, and I'm wondering if they might be related. Any help would be appreciated. Also, does anyone know why the section of my camshaft above cylinder #2 is red? Video. In summary, I can't seem to get power out of my engine. It used to run "great", but now I can barely get the car over 30mph. I ran a compression test, fearing a blown head gasket, but though the readings aren't great, I would have expected to get over 30mph with them (1: 170, 2: 156, 3: 167, 4: 169, 5: 160, 6: 165). That #2 cylinder seemed especially low,
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I while back I took my car, (280z) to a dyno the result, (discussed in separate thread,http://forums.hybridz.org/topic/127636-thoughts-on-my-dyno-result-280z-triple-webers/?hl=%2Bdyno+%2Bresult I contined the investigation regarding the strange figures. I surely have jetting isusue, I however also discovered that my cam was way to retarded. After several measurements with degree wheel and indicator clock I decided to move the cam one notch forward. After this the measurements look quit ok, would probably be a even better with adjustable cam sprocket After advancing the cam
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I´m right now on the final stage of my complete engine rebuild. Before engine start I´m double checking the timing alignment. I however seem to miss the V shape mark on the sprocket(aftermarket OSK) which makes me a bit hesitant. Below pictures show the alignment as i sits right now, can anyone please feedback whether it´s aligned or not. Car is a 280z -75. Chain, cam and sprocket are new and the the marking down at the crank is aligned.
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I am looking for a complete set of of rocker arms for my N42 head that I can send in to be resurfaced. Mine are too pitted to be cleaned up.
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Hi guys. I just picked up a rebuilt 1997 mark vi vortec 454 .030. The engine was done to stock specs. The guy I got it from started a project and abandoned it so I got the complete long block for a great price. Everything was rebuilt/replaced on the engine. These run about 9:1 stock compression and I'm assuming that it's going to be right around there give or take .3. I have a question. I'm going to be upgrading the cam before I get further into the project. What is the largest cam that the vortec heads can handle without machining the valve guides for seal to retainer clearance?
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Apparently my engine has a bit hotter of a cam, and there's a little bit of valve ticking, but I just adjusted the valves and the sound prevails even when at factory recommendation. Would a hotter cam alter the required amount of valve clearance? If so, is there a trial and error method of adjusting the valves until the ticking is gone, and therefore a proper seat is found? Or am I just doing the adjustment wrong?
