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Author Topic: Defective Classic and ES-Kape Jet Pumps  (Read 13345 times)

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Offline Rottweilerman

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Re: Defective ES-Kape Jet Pumps
« Reply #15 on: July 18, 2015, 01:46:16 PM »
Tom,  Looks like I will receive my pump today. \./8    I see a lake run on Monday. :)

Thanks, John

I'm trying to figure out how anybody would interpret to Mokai that they are having a pump problem so the water issue inside the bearings would be covered under the warranty! ???     You would think they would have established a spec on the turn-ability of the pump shaft on a bench test! :o

Can you imagine what would happen should the bearings freeze up at 4000 rpm's? >:(

I'm sure New ES-Kape owners are scratching there heads or other body parts on this issue! ;D

I have to believe the resistance would have an effect on the overall performance,  although to be determined on my next run.

If the my speed reading doesn't get a reasonable 12 or 13 mph, I will have no choice but to loose 20 lbs. :))
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Offline Painlesstom

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Re: Defective ES-Kape Jet Pumps
« Reply #16 on: July 18, 2015, 01:55:24 PM »
Glad to hear it, John. Look forward to hearing all about it.

Mokai's warranty on the pump is worthless in my opinion.  :-[ The design is flawed, if you want warranty work you must wait for the pump to fail and then send it to them, hoping they haven't "heard" that the owner used my clutch etc.. so they could simply void the warranty and charge for repair.  :-O They don't fix the problems anyhow, they just throw some new parts in and wait for it to happen again.  ::) They aren't after performance, they throw together the parts and ship out the boat. When I rebuild a pump, I fix the design problems and then warranty the pump for life.  \./8
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Offline Rottweilerman

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Re: Defective ES-Kape Jet Pumps
« Reply #17 on: July 18, 2015, 02:20:11 PM »
Have you ever taken apart a rebuilt pump after several water runs just to verify the seal, or would leakage of oil from the pump indicate a seal failure? ;)
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Offline Painlesstom

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Re: Defective ES-Kape Jet Pumps
« Reply #18 on: July 18, 2015, 03:00:59 PM »
Both.  ;)  I went through my pumps several times during testing, as well as customers pumps that were sent back again for shaft conversion, bilge port etc.. I put 150 hours on my 2003 and the oil in it was the same as when I built it. Put 100 hours on my 2011 before I opened it up and it was also perfect. The only time I saw oil leaking in one was in an ES-Kape pump that had a hole in the housing. I am not worried about my rebuild failing, but should anything happen to any pump I've rebuilt it is covered for life (mine).  \./8
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Offline Rottweilerman

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Re: Defective ES-Kape Jet Pumps
« Reply #19 on: July 18, 2015, 03:29:40 PM »
 :)
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Offline Rottweilerman

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Re: Defective ES-Kape Jet Pumps
« Reply #20 on: July 22, 2015, 12:07:11 AM »
Tom, Took the boat out today for a fishing episode. \./8   Didn't catch any fish, :'( but had fun.   Pump and wear ring worked well.   Recorded 8.5 to 9.5 mph continuously running into current and 4 mph wind.  About the same with the wind.  The only thing, I can't believe I forgot to look at the rpm's. :-[    I have to relocate my tach so it's easier to see. 

As far as speed, well it get's me where I want to go. :)
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Offline Painlesstom

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Re: Defective ES-Kape Jet Pumps
« Reply #21 on: July 22, 2015, 08:31:02 AM »
That's great John, what was your previous speed? I need some time to go fishing.... lol  :'(
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Offline Rottweilerman

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Re: Defective ES-Kape Jet Pumps
« Reply #22 on: July 22, 2015, 11:46:21 AM »
Tom,  I was lucky if I got 7 mph occasionally  :-O.   I guess I'll just have to go on a diet if I want more speed! ::) 
Thanks for your help on everything. \./8

You can't believe the curiosity I get at the lake and on the way home.  I get thumbs up from people on the freeway, I had one guy follow me until I stopped so he could ask questions.   Yesterday 2 sheriff's at the lake were quite impressed with the boat.   I have people pull alongside the boat on the freeway just to study and try to figure out what the h--- is it.

I see the horror story's are still poping up with Mokai >:(

Got to go, thanks again,  John
« Last Edit: July 22, 2015, 11:50:31 AM by Rottweilerman »
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Offline Painlesstom

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Re: Defective Classic and ES-Kape Jet Pumps
« Reply #23 on: July 23, 2015, 11:20:22 PM »
A few more pumps this week here for rebuild. Another with casting issues that left a hole in the housing. All three were full of water. Two were 2008, one was 2012 and it was missing the internal bearing spacer. The one with the hole was a 2008. Luckily this is an easy fix.

 
Quote from: Rottweilerman on July 22, 2015, 11:46:21 AM
Tom,  I was lucky if I got 7 mph occasionally  :-O.   I guess I'll just have to go on a diet if I want more speed! ::) 
Thanks for your help on everything. \./8

You can't believe the curiosity I get at the lake and on the way home.  I get thumbs up from people on the freeway, I had one guy follow me until I stopped so he could ask questions.   Yesterday 2 sheriff's at the lake were quite impressed with the boat.   I have people pull alongside the boat on the freeway just to study and try to figure out what the h--- is it.

I see the horror story's are still poping up with Mokai >:(

Got to go, thanks again,  John

That's great news, sounds like you gained a solid 1 mph then? I'm still amazed at all the attention I get with either of mine, people just love seeing them out there.  \./8
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Offline Rottweilerman

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Re: Defective ES-Kape Jet Pumps
« Reply #24 on: August 09, 2015, 04:27:55 PM »
Quote from: Rottweilerman on July 22, 2015, 12:07:11 AM
Tom, Took the boat out today for a fishing episode. \./8   Didn't catch any fish, :'( but had fun.   Pump and wear ring worked well.   Recorded 8.5 to 9.5 mph continuously running into current and 4 mph wind.  About the same with the wind.  The only thing, I can't believe I forgot to look at the rpm's. :-[    I have to relocate my tach so it's easier to see. 

As far as speed, well it get's me where I want to go. :)
  Tom,   I ran the boat earlier this week, but this time I got on the lake when it was a little smoother surface. \./8    I also relocated my tach for better viewing.

Speed got up to a little over 9 mph with top rpms of 4050.    I'm happy with that because my payload is probably around 260 lbs total with me (200) and my gear.   Got to drop the sweets. :))
I also landed this guy and returned him to live another day. :)

John
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Offline Odie

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Re: Defective Classic and ES-Kape Jet Pumps
« Reply #25 on: August 09, 2015, 07:03:17 PM »
Nice catch, Striper?
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Offline Painlesstom

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Re: Defective Classic and ES-Kape Jet Pumps
« Reply #26 on: August 09, 2015, 07:13:23 PM »
Glad to hear it John, nothing says a good trip out like a nice catch to prove it. I'm hoping to get some water time in this week.. fingers crossed!  :D
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Offline Rottweilerman

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  • Engine: EX21, With EX17 Head
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Re: Defective Classic and ES-Kape Jet Pumps
« Reply #27 on: August 09, 2015, 09:15:15 PM »
Quote from: Odie on August 09, 2015, 07:03:17 PM
Nice catch, Striper?
Odie,   Thanks, it looks like a stripper from the picture, but it's actually a large mouth. :)
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Offline Odie

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Re: Defective Classic and ES-Kape Jet Pumps
« Reply #28 on: August 09, 2015, 09:27:19 PM »
Good looking fish, I like her no matter what she's wearing.  ;)
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Offline Painlesstom

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Re: Defective Classic and ES-Kape Jet Pumps
« Reply #29 on: October 17, 2015, 06:12:50 PM »
Another ES-Kape pump on the bench that's never been run. Another seal that was only half installed, and another axle/impeller that were not machined with enough clearance and bound up while trying to unscrew. Had to use the impact to get it out of the threads, then press the axle out of the impeller. After working the axle and impeller on the lathe with a file, things finally mated smoothly. I honestly can't understand how somebody could put these things together and not notice there is a problem, like a seal sticking halfway out of the housing!  :-[

<a href="http://www.youtube.com/watch?v=jHPa2kkoga0" target="_blank">http://www.youtube.com/watch?v=jHPa2kkoga0</a>
<a href="http://www.youtube.com/watch?v=faArHbVF6xg" target="_blank">http://www.youtube.com/watch?v=faArHbVF6xg</a>
<a href="http://www.youtube.com/watch?v=ibI9U8X2PhM" target="_blank">http://www.youtube.com/watch?v=ibI9U8X2PhM</a>
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