2056 Valvetrain question |
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2056 Valvetrain question |
flipb |
Sep 23 2013, 01:20 PM
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Senior Member Group: Members Posts: 1,766 Joined: 2-September 09 From: Fairfax, VA Member No.: 10,752 Region Association: MidAtlantic Region |
Let me preface: I'm not a mechanic and I've never built an engine, so what I'm sharing below is secondhand from my engine builder...
We are in the midst of building my stock 2.0 into a 2056. I purchased 96mm Pistons & Cylinders from European Motorworks, along with new valves, cam, and various other hardware... EMW also cleaned/refurbished the heads and rods. My engine builder here in Virginia is a little bewildered by some of what EMW sold me. Specifically, he says that the alignment of the rockers & valves "sucks". The valve adjustment screw has to be turned all the way in, buried in the rocker, and it still looks like there will be severe wear. He suggested we might have the wrong lifters or need longer pushrods. Or there might be an alternative to use rockers from a 1.7 and/or something off a 911 with a ball & socket joint. I'm going to post the full invoice of what I bought from EMW -- perhaps someone can help me understand the issue, either from the notes above or by reviewing the parts list. Does this make sense or sound familiar to anyone? What's the right fix? I'm stuck in the middle of trying to get resolution from EMW for an issue I don't fully understand, but I want to see if anyone here might quickly spot the problem. |
malcolm2 |
Sep 23 2013, 04:34 PM
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I found this picture in a recent post. You see the "foot" of the adjuster. A tiny elephant foot looking thing. It swivels, hence the name. That is the 911 adjuster. Some people swear by it, some don't. You need the 1.7 rocker, cause that thread diameter is the same as the 911.... slightly bigger than the 914.
Can't really see, but it has a solid spacer between the 2 rockers. Another upgrade from a flimsy spring. He is measuring the geometry on the far valve. IIRC when the spring is down half way, the adjuster should be parallel to the valve it is pushing. The foot is not centered, but the center axis of the valve is parallel to the center axis of the adjuster. I am no expert, but I did it about 18 months ago. Are you saying that your adjuster is screwed all the way to the screw driver slot? |
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