

| Subject: | Engine Rebuild week 4 - Valve knock question |
| From: | Mark Mages |
| Date: | Sun, 7 Apr 2002 13:47:23 -0700 |
Actually, this is week 5, but I was in AZ last week, so it doesn't count :) The engine starts, idles (ish), and I fixed the couple leaks I had on startup (makes a huge difference using the right t-stat gasket :)) But - the engine is knocking to beat the band. I am guessing it is valve knock - it is a high pitched ping or pop, not a thud thud thud (piston related)... I got under there with piece of hose up to my ear (no stethoscopes around) and the sound is coming from the 2 outside pushrod tubes. I can't tell if it is in the valve cover or the cylinder head, but it is definitely the 2 outside valves (1 & 4) on the drivers side. The bentley says that it could be the hydraulic lifters, but I checked them for tension before reinstalling the head and they were quite firm. So - what do I do now? If nothing else, I am getting it towed to the local shop and having them finish it off for me tomorrow. I need to get them to test the exhaust gasses to make sure it is all groovy anyways.... Thanks ===== Mark 84 Rocco 87 Westfalia 96 Rockhopper Comp (commuter) 98 Yeti AS-R XC (freeride) 01 Schwinn Fastback Ltd (in progress) http://student.fortlewis.edu/~mwmages __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/
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