Thread: Gas in the lower intake

So I'm tearing down the motor in the blue car that has a massive knock above 2k. Oil is silverish and nasty looking. When I pulled the blower off I got a huge wiff of gas. There is actual gas in the LIM valley (under the s/c). I can wipe my finger on it and it definitely is gas.

I'm guessing a leaky injector or possibly the FPR? But if it was either one of them wouldn't the cylinders get washed down and not the LIM? That and the injectors go into the head not the LIM. They're stock injectors, stock fuel rail.

Pic for reference as to what I'm talking about. The inside was actually super wet with gas.

yeah I know what the evap does but it doesn't exist on the car. I took it off when I put everything back. That and every other emissions piece on it is gone. I'm just wondering if the gas got into the oil and thinned it out too much or was it the KR that killed it.

I know the compression is ok.. or at least it was before I tanked it. I'm going to pull the heads and pan off tonight to see what the damage is.

I just put this motor back together less than 1000 miles and less than a year ago. Spun a bearing at the track on Friday. Yeah I'm not sure how else gas would get in there other than a leaky injector. I now when I pulled the vac lines off on the FPR it was bone dry. Generally when a FPR goes bad it starts leaking gas in the lines.

Just trying to figure out what spun the bearing.