SoCal Jet Boats
Tech Talk => Jet Pumps => Topic started by: 1977sleekcraft on June 03, 2013, 07:27:52 AM
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i have just recently purchased a 1977 23 ft. sleekcraft daycruiser with a 460 with a jacuzzi 12yj pump, need some feed back on the pump, took it out yesterday to el cap and the boat seem to be capatating, i was doing research on the pump last night and from what i found is that it seems to be normal for the pump to do that. to get the boat to plane i had to have it around 4500 rpms. is there and inexpensive fixes for this? i saw the energizer kit for this pump but it runs $2000.00 (i paid less for the boat), any other inexpensive ways, does anyone have a used kit? need some ideas. thanks
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I sold a complete energizer kit installed with pump not long ago... do a search on pb, rd might find one cheap. Sold mine for under 500
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do the energizer kits really make a difference?? and what are those websites??
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On a big boat, an energizer may not give you any more performance than a 'tight' YJ. With these big day cruisers, it takes some rpm to get them to plane.
Day cruisers are heavy azz boats, especially a 23'. (probably as big of a boat for a pump)
The energizer kits make more of a difference in a light(er) hull.
Make sure the pump is in good working order and run $2000 worth of gas thru it :thumbup:
Thats all I got
Dan'l
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ya i would check your clearances. if the pump is not tight just have that fixed first before you spend a ton of money. You are not going to get any more speed out of a day cruiser unless you drop in 800hp and spend a ton on a pump. and even then you may only hit the high 60s.
Get the pump into goo working order with tight clearances and go have fun in your new toy.
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so basically i need to just rebuild the pump and go from there, insted of the energizer kit. hopefully that will make a difference, no clue when the last time it was re-built either. anybody know a good place to get re-build kits for the 12yj???
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do the energizer kits really make a difference?? and what are those websites??
He might be referring to performance boats, and river daves place
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so basically i need to just rebuild the pump and go from there, insted of the energizer kit. hopefully that will make a difference, no clue when the last time it was re-built either. anybody know a good place to get re-build kits for the 12yj???
Jet Boat Performance, as well as others
http://www.jetboatperformance.biz/pages/rebuild_kits.html (http://www.jetboatperformance.biz/pages/rebuild_kits.html) about halfway down the page
Dan'l
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so went home last night and took on clean out cap and noticed that the impellar deff needs to be replaced, its pitted really bad, rust on some spots and has a few dents in it. looks like this weekend will consist of rebuilding the pump.
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DOES ANYONE NO WHAT THE CLAERANCES ARE ON THE IMPELLAR AND WEAR RING????
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Deleted
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Jacuzzi is still in business so you could give them a call, but google revealed to me that .004-.010in should be the numbers