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Found 1 result

  1. EDIT: The short version is the aftermarket tubes supplied with the engine rebuild kit were under size at the inner end and out of round ! Details 12 posts below. This is a request for ideas on what mistakes I must have made replacing the spark plug tubes and seals on my 2001 S.Yes. I searched and read lots of posts. I already have both the recommended diy tools for removing the tubes.With googling I found lots of successful installations but little discussion of stupid(me) mistakes ! I fitted all new spark plug tubes and seals when I rebuilt the engine. On an engine stand this is an easy job to do perfectly .Or it should be . Some of the seals leak.Some don't . The engine has run no more than 1 hour since the rebuild was completed What did I do wrong? All the tubes are set to the same depth int the camshaft cover.None are loose.In fact they are very tight and will be difficult to remove - the 0.90" washer+long bolt tool will help.The tubes are too tight for the transom plug tool to work. The worst leak is not sufficient to get past the seals on the coil - yet. The inside of the worst tube has a thick coating of oil after no more than 1 hour running time since rebuild. I know that (silicone)sealant is not recommended but read that some people do use sealer on the seals. They use 'sensor-safe" sealant a.k.a 'Form In Place Gasket" or Hardex. Good idea? The vulnerable seal seems to be the smallest one Part # 999-707-343-41.The large ,orange seal at the outer end of the tube is part # 999-707-25-40 and seems less likely to leak ? There is no significant pressure in the crankcase . So what is forcing the oil out ? Just a poorly seated seal allowing surface tension and gravity to leak? Specifically what sealer is recommended for tube seals that won't otherwise seal? Permatex black Ultra? Drei bond? I know if sealant is applied, only a very thin coating on the seal should be used. There are cautionary comments on excessive amounts of sealer drop off into the engine. I'll pull the tubes and buy new seals but need to learn from your suggestions on how to avoid getting more leaks before I waste more parts and time. Thank you for your ideas an help. Interesting to note that this tube design was upgraded for the 2004 model.
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