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KENO 
Grand Poobah 
Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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 Posted: September-17-2020 at 6:07am |
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Umm..........I think he's beyond the rotor/distributor issue 
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KENO
Grand Poobah
Joined: June-06-2004 Location: United States Status: Offline Points: 11118 |
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Posted: September-17-2020 at 6:18am |
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You obviously missed the point that your stories don't seem to agree from one post to the next when you get to telling the world how many years you go without doing things like checking impellers, points etc and you seem to forget about the years that your "trailer queen" or maybe "beam queen" never hit the water or got minimal use You Pete are truly, the "king of preventive maintenance". Hopefully every new owner that shows up here with questions follows your sterling example of how to take care of his boat
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GottaSki
Grand Poobah
Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: September-17-2020 at 9:39am |
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Maybe some guys never have guests over. Seems that is when an old impeller shreds, or the cable pivot finally saws on half.... I ski, not just boat. I take others skiing and i'm not the exclusive driver, i let others take the helm. last thing i want to tell a driver is to watch that temp gauge. that implies its the most important thing. Especially when my daughter pilots im thankful she has since she was 15. She just would never have been a participating driver if i told her to watch the temp gauge every time i drop in.. just wouldn't. Then gottaski cant ski. not good. I expect a pilot's full focus on the safety of passengers, the craft, the shoreline, the rogue 60 mph pontoon boat that doesn't yield, or occasional lake lice that think its fun to mess up the 6am water. whatever is left over, goes to my ski experience. I'm not giving that remaining faculty to a temperature gauge to save 30 dollars every other season. Pete, i see your pump there, shaft is supported on both ends, i suspect that keeps everything in place with high precision throughout its lifetime.. I've had the dual pumps on a Chrysler apart many times as well, same config. On a old single circuit Sherwood, when the bearings get a little worn, the shaft torques over from belt tension a little, so on a LH engine this moves the impeller away from the wedge, creating low volume condition even with a fresh impeller, that can be maddening but more a nuisance because its mostly at idle until it gets worse, but very challenging to diagnose... Conversly, i suspect, on a rh engine the pump is flipped as you know and the impeller is now mashed toward the wedge more than usual, creating great flow at first, but as it gets worse this decreases longevity as the vanes see very big deflections and can start to run out of room. So, in some contrast to your axiom, that is one way i see impellers can shred early, without starting the boat without water applied. Also, with the advent of lifts, some boat's pump configurations drain out and start dry every use. this happens even when dropped in the water, it starts dry, and eventually doesn't draw. Impellers wear early, when the temp spikes a few times and outing, its going to shred soon. this happens to a ski buddy's centurion lapoint with a mercruiser 350 . the pump drains out every time its lifted. burns up 1-2 run-dry impellers a season with just daily use. there is a simple solution of course, but some don't commit to modifying items asap
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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Gary S
Grand Poobah
Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: September-17-2020 at 10:03am |
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The way the hoses are plummed on a PCM engine never let's the water drain out,there is always residual water there to lubricate the pump on startup.
Do you service your Sherwood pump as they recommend? |
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Baileys140
Newbie 
Joined: June-11-2020 Location: Palestine, TX Status: Offline Points: 15 |
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Posted: September-17-2020 at 10:19am |
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got my new impeller on the way in the mail tpertoday that will be replaced sat. pertronix coil will be installed tonight. anti siphon valve coming ethier this weekend or next week. the date on my fuel filter water sep that was replaced last night was from 06. Im pretty scared to see what the impeller looks like and i imagine thats causing me probs on the water as it has probs not been replaced on a 25 yo boat (tears rolling) but saturday it will be done. Any body else got ideas for things that NEED to be replaced assuming they havent been in 25 years?
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Baileys140
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Joined: June-11-2020 Location: Palestine, TX Status: Offline Points: 15 |
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Posted: September-17-2020 at 10:20am |
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Besides the engine lol
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GottaSki
Grand Poobah
Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: September-17-2020 at 11:07am |
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Good plan Bailey
Gary enlighten us. you going to keep at it and remove all doubt?
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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Gary S
Grand Poobah
Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: September-17-2020 at 11:18am |
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A simple yes or no would suffice. Since your so into airplanes do you get to pick and choose on what and when you service them ?
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GottaSki
Grand Poobah
Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: September-17-2020 at 11:24am |
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the latter it appears
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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Jonny Quest
Grand Poobah
Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2979 |
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Posted: September-17-2020 at 11:29am |
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Looking at my GT-40 engine, there is a low spot in the raw water hose leading up to the RWP. It looks reasonable that there is some amount of residual water In the hose. I pull pull my boat out of the water after every ski session as I trailer to/from the lake. As such I’m glad to see that lubricating water is not far from the RWP on start-up. As for servicing the Sherwood RWP....well on my old 1994 SNOB, I attempted to do a major rebuild on the pump, but crashed and burned on take-off. At the time I didn’t have a hydraulic press required to properly disassemble and reassemble the pump and I ended up cracking the pump housing. That cost me a $400 RWP. I still have the rebuild kit and may attempt a rebuild on the new SNOB when engine hours indicate a major rebuild is due (based on Sherwood service hour recommendations). As the impeller kit is only $25 and 10 minutes to install, this is a periodic service item I do every couple of years. Overkill? Perhaps. I look at it as a modest insurance premium. JQ
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Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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Gary S
Grand Poobah
Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: September-17-2020 at 11:32am |
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Typical- when you can't support your discussion always resort to name calling
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slmskrs wrote: