Hello Volks, I am currently overhauling a 2.1L Waterboxer with 280000kms. It's for a friend who is a mechanical newcomer but owns a Syncro crewcab. The engine is completely apart now and the core of the engine including main bearings look really fine. I will replace them anyway. Camshaft and bearings are alright as well. Pistons and cylinders still measure up. I will replace rings. Piston pins are not easy to remove due to the high sidewall of the block. Tip: I used a 6" long 3/4 bolt removed the clip on the more accessible side (through hole), stuck the bolt through, put a nut on the open end that fit through the clip and pulled the pin out hammering against an adjustable wrench placed before the head of the bolt: cheaper than VW tools. The heads need the usual work with resurfacing and new valves. The resurfacing might increase compression slightly. We might go for new heads. The engine should last a long time. Two questions remain. 1. What should be done as corrosion prevention? (grounding straps?, insertion of kathode? special gasket sealer?) 2. What can be done to improve performance? (larger valves? different camshaft? or: Kompressor also called blower to precharge intake air, would Digifant recognize and adjust mixture through O2 sensor, any experiences?) Let's see what we come up with to make the waterboxer more lasting and more efficient. Björn
Björn Ratjen Mill Bay, B.C. 1987 Vanagon est alia (self camperized) 1978 VW Bulli (self camperized) 1995 Passat TD Wagon (hers) 1970 VW Beetle (son's) |
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