Run-in 期間引擎不停加快?(終極篇!!)

Tonight..... 終極一戰

Engine vs Ben

live free or die hard !!!

原帖由 bigben 於 2007-7-10 14:48 發表

                               
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太富油所以不停加快?
之前另一些師兄又話要扭大大油針, 要富油.....

too rich or to lean????

too confused !!!

I think the situation now is that the fuel supply is too lean, right? so  ...

接收電冇電... 所以不停加快~~~~~

接收電冇電... 所以不停加快~~~~~???

i did not turn on the control and the car........ should not be related.....

原帖由 bigben 於 2007-7-11 02:36 發表

                               
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接收電冇電... 所以不停加快~~~~~???

i did not turn on the control and the car........ should not be related.....

Hey you're back!
How was the battle?  

首先, 謝謝brother們的教導……

昨晚2nd round 對決由1200-0130 hours…… 結果……

1)
大小油針已鬆多了, 但引擎一著都係”嘭嘭聲” 咁去….(今次撻車成功率有3-5分1, 有進步…..  )
2)
後來我跟說明書上寫將”怠速螺絲”扭鬆, 將化油器那gap位減少, 目的怠速減慢……結果……係成功的!!! But…….
3)
但到了兩份鐘後, heat sink 的溫度也升至90多度(may rise continuously), 並不是別人說的6-70度…!!! 而引擎聲由”du du du” 轉至高頻一點, 好像好急、好尖的……. 最終我怕燒壞引擎, cut 油!!(以上重試2,3次都是一樣)

就此, 我有d問題問問…..
1)
何解有以上情況?
2)
Run in及調教GXR28 引擎是否和一般引擎不同? 因說明書上寫明run in期間將”怠速螺絲”扭鬆去調怠速…..大小油針已鬆多好多了 (大油針 - 4-5 turns off!!)
3)
何解溫度不停上升?? 說明書上寫run in期間可以去到上限120C, ok嗎??
4)
有冇玩過inferno嘅師兄在呀?? leeho888師兄在嗎?

希望大家再幫幫小弟…..

原帖由 bigben 於 2007-7-12 10:30 發表

                               
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首先, 謝謝brother們的教導……

昨晚2nd round 對決由1200-0130 hours…… 結果……

1)
大小油針已鬆多了, 但引擎一著都係”嘭嘭聲” 咁去….(今次撻車成功率有3-5分1, 有進步…..:victor ...

你呢個情況應該先張細油針再放多D(喺著緊engine時)
試試睇吓點啦...............現埸情況千變萬化,依家真系好難講得曬比你聽架

看來真的要"出field"去揾d師兄攪攪........
Sunday TKO 有人在嗎???
佢地會否覺得我好煩?? 3唔識7阻住晒

[ 本帖最後由 bigben 於 2007-7-12 11:45 編輯 ]

原帖由 bigben 於 2007-7-12 11:43 發表

                               
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看來真的要"出field"去揾d師兄攪攪........
Sunday TKO 有人在嗎???
佢地會否覺得我好煩?? 3唔識7阻住晒

都話唔會囉
所有玩車嘅師兄們or大部份,只要你叫人一聲師兄個個都幫手架啦
Sunday+Sunny day+afternoon 一定有人

原帖由 valklai 於 2007-7-12 11:57 發表

                               
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都話唔會囉

師兄師兄...... don't be angry....

any other advice from other c hing of my situation as mentioned above???

1) it is all about fuel and air mixture.

this is control by the throttle opening (air) and the top and bottom screw (overall flow of fuel to engine)

The temperature rise as there are combustion inside the engine and it creates 1) power and 2) heat. More cycles of combustion = more more heat heat.....

when the engine temperature is rising, richen the air fuel mixture by adjusting the top screw for supplying more fuel to the engine, providing all other adjustments remain the same. try 1/8  or even 1/4 a turn every time and listen to the tone of the engine. It shd sound slower and slower...temperature shd decrease accordingly.

Nitro is act as the cooling agent for the engine for RC cars....as it doesn't have a radiator like a standard 1:1 car. Also, it act as an lubricant for the internals of the engine. More fuel = lower engine temp if other adjustments remain constant. However, too much fuel = engine stop running as it is too cold so you have to adjust accordingly.

hope it helps...

I am using torando 25%, will it be too high for break-in and come to this situation??
(I know 16% is best for run-in, but people said that 25% is also ok......)

big bros,

I did it welll successfully last night !! the engine run-in at a stable temp. about 100C !!! now, just finish 3 tanks of fuel........ spend 30 mins per tank

got back home late at 0230 last night.....

I am so happy that I can "control" my engine now.... thanks to the advice and assistane from every big bros.....!!!

I think I need to run-in for another 3 tanks b4 I can tune my car.... right??

thats enough for those stock engine....no more run-in is required....

Just to play it...dont waste the time...measure the temp to tune the engine

enjoy the nitro RC

I agree.  Go and bash around with the stock engine.
When it's finally having problems,
you have all the excuses in the world to get a new engine

bash bash bash

go go go.....!!!