Intake Manifold

Slowly I am pecking it away. This time it is intake manifold time. It is a MPFI from a D16A6 engine. Took it completely apart and dropped it off at the only engine shop in my area... $15.00 later I got this back:

Intake Manifold - Front Intake Manifold - Side I cleaned the injectors, fuel rail, put it together, and here is the end result. Intake Manifold - Rail Assembled

One step forward, two steps back. I had a chance earlier to clean up my pistons, they turned out really nice as well. However, something tells me that cylinders are f'd up. I measured them with my digital caliper, then I tried bore gauge, telescoping gauge, and everything points to the fact that cylinders are out of round. Oval cylinders! Why me?! I will remeasure it again tomorrow and post results here. If they are in fact out of round - that means bore and hone job - another $150.00 out of my pocket.
But that got me thinking since D15B7 bottom is identical to D15B1 (am I right?) why not just take the D15B1 out and work on that instead? At least I know that THIS engine has not been molested in any way, and I would end up with the original block.

piston_dirty piston_clean Dirty and cleaned pistons side by side comparison. pistons_clean

So here is a little humor and trivia for you. When I took pistons out, and took the end caps off, I just put them away. Later when I wanted to put them together I realized the the half-numbers stamped on the side of rod and a cap should align into one readable digit. For some reason I expected to see 3 in there (prob. because of tutorial I read). I am looking at it, and looking and there is no way in hell it is 3, I graduated college I know what 3 looks like! The cap half does look like 3, but the rod must be 7! 7?! What the hell?! That even further convinced me that the guy who put this engine together is a total ass and I am a complete tool. Fast forward a few days, today I am playing with piston to take a nice picture of it, I flipped it upside down and there it is - right in my face: 2. piston_number

To conclude, what do you guys think, if cylinders need to be bored over, should I even bother? Or should I just take the D15B1 out and work on that instead. This hobby is a money pit, but you all knew that, right?

Nov. 21, 2008 17:56

Comments

bekah Feb. 13, 2009 13:54

I love your new hobby! You can do what I only dream about doing. You rock.

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