"Was Wondering if anyone could
"Was Wondering if anyone could share some thoughts on a Lube oil Analysis I just got back from a engine survey. As part of a pre purchase inspection I had an analysis done on a pair of 454 crusader engines installed in a 1992 31 tiara. The owner said the engines were re-built in 2006 and there are only 200 hours on them since. The boat is in beautiful condition and the boat ran great and acheived 4000rpm each side. The problem, however, is the analysis on the starboard side showed high sodium readings (194 ppm) and above average readings for silicon (26 ppm), iron (170 ppm) and tin (10 ppm). The Port engine showed high signs of sodium (174 ppm).
My question is the most likely culprit bad risers or possibly faulty riser gaskets? Could it possibly be evidence of a larger issue such as blown head gasket, faulty heat exchanger? We got up to 28 knots at WOT and had no problems throughout the throttle range during sea trials. Any feedback would be greatly appreciated.
If it is the risers, how much am I looking at cost-wise? I've researched it and it seems like to do the risers myself with Osco replacements I'm looking at a grand. Am I missing something becuase all the estimates I see on the site regarding this, seem to point to the 2000 dollar range. Again, any input would be wonderful."
"Was Wondering if anyone could share some thoughts on a Lube oil Analysis I just got back from a engine survey. As part of a pre purchase inspection I had an analysis done on a pair of 454 crusader engines installed in a 1992 31 tiara. The owner said the engines were re-built in 2006 and there are only 200 hours on them since. The boat is in beautiful condition and the boat ran great and acheived 4000rpm each side. The problem, however, is the analysis on the starboard side showed high sodium readings (194 ppm) and above average readings for silicon (26 ppm), iron (170 ppm) and tin (10 ppm). The Port engine showed high signs of sodium (174 ppm).
My question is the most likely culprit bad risers or possibly faulty riser gaskets? Could it possibly be evidence of a larger issue such as blown head gasket, faulty heat exchanger? We got up to 28 knots at WOT and had no problems throughout the throttle range during sea trials. Any feedback would be greatly appreciated.
If it is the risers, how much am I looking at cost-wise? I've researched it and it seems like to do the risers myself with Osco replacements I'm looking at a grand. Am I missing something becuase all the estimates I see on the site regarding this, seem to point to the 2000 dollar range. Again, any input would be wonderful."