rod knocking |
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TX Wind
Senior Member Joined: March-29-2011 Location: near Dallas Status: Offline Points: 333 |
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Posted: September-04-2013 at 3:07am |
Changed the oil sender 3 times. They all read the same. Could be a bad gauge. Oil pressure is suspect for sure. I'm wondering why it's cooked on the inside but good water temps and cool exhausts.
It's a 351w pre 1971 (hi nickel, higher compression block) Crusader pull out that was pickled at 380 hours. It ran like a sewing machine. And for the record, this is not our first Rodeo. Current boats are: 67 S.N. with factory B.B. Interceptor 390 scary stringers 81 Mastercraft S&S 351w Spun bearing, wtf I don't know 85 Mastercraft S&S 351w tired of loaning parts to the 81 and busted gunnel 87 Supra Saltare (454) Spun bearing, clogged riser 89 Supra Mariah 351w sick carb but improving 92 S.N.O.B. 351w Pro tech ignition....nuff said 97 Malibu Response 350 Spun bearing, drunken stupidity (although C.H.E.V.Y. is suspect) That's just what is on the plate at the moment. As you can see. We are darn good at breaking boats. 6 out of 7 in the last year. Of course we start skiing in Feb. and go through Nov. and even into Dec. Barefoot skiing at that. The chevy's don't like the down angle one little bit. They are much better with the PCM's and a flatter angle in the boat. |
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89Martinique
Senior Member Joined: September-05-2011 Location: Binghamton Status: Offline Points: 457 |
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80psi sounds like a bad sender... My CC will show 70 psi but only on a cold start at 1000+ rpms... Then after a good long run comes down to 10 psi at idle till it cools off, then 20 psi... Did you ever replaced the oil sender with a switch by accident?
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Current Boats:
1992 Supra Comp-TS6M PCM 351w HO Pro Boss Pro-Tec Ignition - Full Composite (no wood stingers!) 1989 (3rd Gen) Correct Craft Martinique B/R PCM 351w Power Plus 1984 E-Scow Keuka Lake, |
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baitkiller
Platinum Member Joined: October-11-2011 Location: SW Florida Status: Offline Points: 1693 |
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80 psi oil pressure?
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Jesus was a bare-footer.............
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phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6157 |
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Eww. Which motor?
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TX Wind
Senior Member Joined: March-29-2011 Location: near Dallas Status: Offline Points: 333 |
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Got a rod knocking on a 300 hr engine. It sounds intermittent like a woodpecker but definitely down low. The engine showed good water temps. Both exhausts were cool enough to touch. Oil pressure reads 80 psi but the inside of the engine was frying hot. Was running like a sewing machine and started knocking atabout 3000 rpm. Any thoughts on this?
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