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Sun Feb 04, 2007
16:51
Last summer I replaced the main bearings in our 1996 Golf (her name is Virginia), and I really should have done the rod bearings at the same time. I just got back from my trip to Australia last week, and was welcomed with single digit temperatures. In that kind of cold, I noticed Virginia was awfully noisy until the engine warmed up, and it sounded like it could possibly be rod knock. The rod bearings are pretty easy to replace, so I decided to do it - plus, I already had the new bearings sitting around somewhere.

The job went real smooth, and even though the old bearings weren't worn quite as much as I expected, they were still pretty trashed. Lots of pitting and scoring in all of them. The upper halves of the bearing shells showed far more wear than the lower halves.

Here are some pics (click them for larger views):
old connecting rod bearings

old connecting rod bearings

old connecting rod bearings

old connecting rod bearings

And here is a picture of the tiny bits of plastic I found in the bottom of the oil pan. I found these last time, too. The black pieces are hardened gasket maker material, and I think that the reddish brown pieces are from a broken dipstick tube (you VW owners out there know how often those things break). There's nothing else I can think of made of that color plastic that could get into the oil. (click for a larger view)
bits found in the oil pan



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