The dreaded knock. |
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The dreaded knock. |
atmadsen914 |
Dec 28 2008, 11:06 PM
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#1
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Am I sure I like old cars? Group: Members Posts: 45 Joined: 7-September 07 From: Carlinville IL Member No.: 8,087 Region Association: Upper MidWest |
I recently rebuilt a 2.0/4 motor and installed it in my 914. After getting many fuel system issues sorted out I finally was able to drive it a few times but after about 150 miles of driving. It developed a knock. I readjusted the valves and the knock seems to get better but never goes away. The knock is audible from idle to about 1500 rpm then smoothes out. When I roll the motor over by hand I can hear a knock on every cylinder.
The motor is basically stock with the exception of a web cam (73 grind). I am about to pull the motor and start disassembling as the sound does not seem good. However after many hours of tinkering has not gotten worse. Ideas? or do I just get to do it all over again? |
atmadsen914 |
Aug 8 2009, 08:26 PM
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#2
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Am I sure I like old cars? Group: Members Posts: 45 Joined: 7-September 07 From: Carlinville IL Member No.: 8,087 Region Association: Upper MidWest |
So over the last few months I pulled the motor took it most of the way down. Everything seems fine. Lifters wear is good. No lose rods. No piston slap. Compression is at 8.75:1. Put it back in fired it up and yet sound is still there. Idles like a drag racer. Loud and clacking. Above 1800 she runs just great. Seems like it was missing a little before (based on carbon on cyl # 2) but that seems licked. So I am pretty much back at square one.
Ignition seems like a good next step. What is the best way to go for a 2.0L distributors? |
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