Clinician
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Post by skysoldier173d on Feb 20, 2011 17:51:54 GMT -6
Thanks for stopping me at the last moment I was just about to perform the thermo removal surgery. I'm going to keep up the generic coolant temperature checks and try to nail down this scooter temp gauge as either being good or bad. At present I don't have the necessary coupler to use to insert compressed air into the scoot's system and am working on getting a new compressor as my 35 yr old C.H. finally went kaput. I'm still wondering if bubbles could still be in the system and more burping could be needed. After the water flushes I then refill and top off with new Prestone Dex Cool and I'm exhausting many gallons of the expensive stuff to this point. I don't want to reuse the drained out coolant as I see imperfections and small trash in it.
Thank you,
Ernie
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Clinician
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Post by skysoldier173d on Feb 20, 2011 16:54:14 GMT -6
Hi cc prof,
Thank for manning those big guns for our beloved USA. I did spend 2 combat tours with 3/503d Abn Inf of the 173d Abn Bde. I was with the Battalion recon platoon and loved every
moment of the 2 years that I served with them during the central highlands campaigns in Vietnam. The guys I served with were the absolute best our country had to offer. Thanks so much for asking. :=))
I'm still battling the cooling sys problem of my new scoot. the DR gave some some great info. While turning the eng over I saw that the impeller blade of the water pump was spinning so that pretty much indicates the water pump is okay. When the Chicom gauge was red lining I checked the radiator water temp with a digital thermometer of known accuracy and the water temp read approx 175 deg. With the rad cap removed the scoot temp gauge did go down to about the mid level reading. I put the cap back on and in about 5 minutes of idle the reading went back up close to the red line indicator. Also, my hat off to those wonderful Chicom factory scooter techs. The radiator fan is blowing in the wrong direction. DR's fix is next to reverse the polarity of the 2 wires and should correct that problem. I'm thinking about running the eng with the thermostat removed as it only speeds up the warm-up of the scoot and that shouldn't be a problem down here in the Carolina's. I have tried to burp this engine so many times that the scoot maybe is trying to avoid me, LOL! Thanks guys for the warm
greetings and hospitality.
Best wishes and I'll keep trying.
Ernie
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Clinician
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Post by skysoldier173d on Feb 20, 2011 9:18:59 GMT -6
New Road Runner 250 w/257cc Linhai clone. I thoroughly flushed the radiator and engine with water 3 times both fwd and reverse flushes, put in a brand new thermostat and filled the system with Prestone Dex-cool which says it is perfectly safe for all alum sys. parts. But upon a 2 mile road test the temp gauge shoots right over to Big Red. I believe the temp gauge is okay because at idle and for the first 5 to 10 min's it stays low until I put some rpm's to the eng on a road test. I have less than 10 miles on this new Scoot & can't believe that I'm still having these radical problems. I can't take it to the dealer as he is in Dallas, TX, and I'm coastal NC. I have a new water pump on the way that won't arrive until Tuesday (Today is sat 2-19) I took off the front face of the water pump and all looks new inside including the white 6 blade impeller. Will all of the retaining screws now removed I still haven't been able to remove the main pump housing by wiggling and pulling. It seems to rotate about 1/4 inch but beyond that it's sorta stuck. Before I put a long shanked screw driver and started tapping it to try and further the removal I hoped to hear from some of you experts regarding how to remove the main wp housing. I don't want to chance hammering tools around the machined fit and possibly damage the alum. or die cast housing if an easier way can be found to remove the pump. I don't know what else this 257cc Linhai cooling sys to run real hot other than than the water pump. One important test that I wish I would have made was to watch the removed top hose to the radiator and see coolant flowing out of it into a catch container as that would have been pretty much proof that the water pump was pumping. After sufficient warm up time (thermo opened) I never saw any coolant liquid flow moving while viewing down into the radiator with cap removed.
I forgot to mention that when the coolant temp rises to above 160 the fan kick's on but as crazy as this sounds when I place my hand over the front side of the the fan the air seems to be blowing toward the front of the Scoot rather than blowing it thru the radiator air flow from front to rear. Could Chicom scooter tech's be that inept as to put a cooling fan on backwards?? While observing the fastener point around the fan they seem to be laying correctly with the screws fastened into place. Maybe my air flow senses aren't hitting right and my hand is feeling the draw of the air being sucked into the fan. With this problem keeping me down so long of a time maybe my head is playing tricks on me. lol! But I swear it sure feels like air being blown out the front side (toward front fender).
Thanks for any of your thoughts in this. I'm quite frankly running out of possibilities and areas to check.
I badly miss my new Honda Ruckus clone GY6 that became a theft statistic after being stolen from a major shopping ctr parking lot with steering lock engaged. So here I am after sinking a couple of thousand $$'s into this Road Runner 257cc and now 3 weeks later and still no scoot to use. Buses and taxi's to and from work is becoming a real pain. She uses our only 4 wheel SUV for her job as a home hospice nurse. Any help will be greatly appreciated and graciously received. Thanks
Ernie
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