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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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water pump faulty desing
well i just blow my engine again!! 22 hr after a full rebuild (yes 22hr),,, very not happy with the water pump impeller design ,,, who in the right mind (engineering ) make plastic impeller in a hot engine? not sure if they fix that but my 2014 ec 300 came with plastic and the replacement one too ... the funny stories is that when i finish my last rebuild ,i order the aluminum one ,,i just got it in the mail today ... 1 day too late as it blow yesterday 20 mile in the wood ... it should be in the sticky ,,,, if you buy a gas gas ,,first thing is get rid of the plastic impeller ....
my 2 cent frustration cheer Henri |
#2
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Soooo.
Is there more at play here? A 2 stroke would ideally run a 50degC but with limited rad size and slow speed - more likely 70. Some mud bogs walking speed say 80 maybe 90. Plastic should cope with that easy enough. Did it fail itself? Or were you losing water? On top of that air-cooled bikes were run well over 100. I've always run the ally one, just because but. . .
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#3
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My 02 EC 200 and 03 MC250 are stock except jetting and have had no problem with the water pump. My 01 TXT 280 water pump seal leaked about 2 years ago.
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02 EC 200 03 MC 250 88 VT 800 01 TXT 280 |
#4
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22hrs? Are you running it way too lean?
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WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
#5
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Nothing wrong with the plastic one, my old 04 had over 20,000k?s on it and it never failed. Something else at play here.
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Back on a gassy! 2018 EC300! 🤘 Txt 280 07 to make me feel like a gumby again |
#6
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DO a search on here. There were big discussions on the plastic impeller touching the cover. Being plastic it should be ‘self clearing’ lol
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2003 txt250 Pro 2013 Ossa 280i |
#7
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And dude please don't think we're having a go at you kicking you while you're down. We just want to not have it happen a 3rd time.
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#8
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What exactly happened? What parts are destroyed?
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Anders "So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie) 2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper 2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper 1998 Bimota Supermono 1986 Duc Mille S2 1975 Guzzi sidecar hack 1961 Morini Corsaro 125 etc |
#9
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Don't just install the aluminum impeller without checking clearances; it's a very close fit to the housing. You may need to double up on the gaskets.
High engine temperatures take out the head orings quickly. Shutting down at the first hint of trouble is your best bet. I'd say the jetting would have to be lean for the conditions unless you were badly stuck and had no air flow past the radiators.
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2011 EC250E |
#10
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Quote:
Here is the original thread. There is a lot of information on this thread and post 19 includes photos of my plastic impeller and the install of my 2t metal impeller. http://www.gasgasrider.org/forum/sho...=14764&page=14 Here is the 2 T racing kit. I checked the clearance on my 2011 and it didn't have a problem and it never overheated but I installed this kit anyway in 2013. I have never had a problem with the new 2t metal impeller. http://2tracing.it/ricambi-gas-gas/m...iorata-ec-300/
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2011 GG EC 300E, 1994 CR 250R, 1984 RM 250 E, 2022 Ranger 300 "If you stop eating donuts you will live 3 years longer. It's just 3 more years that you want a donut." ―Comedian Lewis Black "I think best when I have a wrench in my hands." Soichiro Honda "Dreams are messages from the deep." -Unknown Sardaukar Last edited by Moto7man; 06-12-2018 at 01:41 PM. Reason: add link and update |
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