驚愕の心臓検診
- 「･122」AMAZON健康維持大作戦
- by suna
- 2009/07/05 日 11:02
ここのところ、仕事の環境が大きく変わり、挙句に難題噴出と処理作業に翻弄されて、ブログどころでは、、、、という状況です。とはいえ、この状況に突入する直前に、「・123」の１２３ＧＴオーナーのＯさんが、ボディリペアと板金塗装の大整備に入るのと時を同じく、「・122」も心臓部（つまりエンジン）の健康診断をしてもらいました。ところが、エンジン下部のウォーターラインのドレーンコック（冷却水交換排出口）のネジを回しても、全く冷却水が出てこない、、、、。ということで、結局、エンジンを下ろして、ヘッドをはずして点検。そうしたら、案の定、エンジン内部は驚愕の状況になっていました。当然、エンジンシリンダーまわりのウォーターラインは、ドレーンコックのあるエンジン下部にかけて、錆が堆積。さらに、エンジン内部は、スラッジが壁面に張り付き、ドロドロ状態。エンジン下部のオイルパンをはずしたら、真っ黒でドロドロ、、、。これまで、「・122」を入手してからは、こまめに頻繁に、上質オイルを交換してきましたし、当然、ラジエターの冷却水も常にチェック、、、。共に、「一応」外見上は、綺麗な状態を保っていただけに、驚愕以外の何物でもありません。要は、恐らく、私が入手する以前のオイル管理と冷却水管理が、全くなっていなかったのでしょう。走行距離は少ないようなので、「置きっぱなし、、、」でオイル交換も冷却水もそのままだったと思われます。とにかく、ウォーターラインの錆をそぎ落とし、高圧洗浄をかけ、エンジン内部も、可能な限りバラして壁面のスラッジを落とし清浄してもらいました。ま、オーバーホールまでは行きませんが、あくまで、可能な限り綺麗にしてもらいました。これをやらずして、いくらオイル交換や冷却水交換をしてもスラッジや錆に壁面が覆われていては何ともなりません。いわば「動脈硬化」みたいなものなのですから、、、。で、エンジンを下ろしたのですから、この際、フロント及びリアの足回りのブッシュも交換することにしました。そして、クラッチも開けてみたら、クラッチディスクに大きなキズ。まだクラッチ板自体の厚みは残っているので、きっと、前のオーナーが、クラッチ板を減らしすぎて、ボルトでクラッチディスクを削ってしまった跡のようです。これでは、クラッチの「当たり」が出ないので、研磨をお願いしました。とにかく大整備となってしまいましたが、本当に、エンジンを下ろして、開けてみて、良かった、、、これが、本音です。
These days, my work life has become considerably more complicated and lots of issues have come up - so I have had to leave my blog alone for a while. In any case, my .122 has been hospitalized for a engine inspection, just as Mr. O's Mr. 123 has been hospitalized for body repair, metal and paint repair. But, when they tried the drain cock under the engine, nothing came out - where normally, you can drain out the coolant water. So, out came the engine and the engine head. Out came the ugly reality of the inside of the engine. As I had expected, there was a pile of rust around the water line of the engine cylinder towards the bottom of the engine. There was sludge all over the side. When the oil pan was removed, there was an ugly pile of thick black stuff - almost like tar. I had been using high quality engine oil and had been very careful about the water level, but this now seemed all useless. Because the .122 had not been driven around much, the previous owners must have left it alone and not done any water or oil change. Anyway, the rust around the water line was scratched off, washed off on high pressure and the sludge was cleaned off as much as possible. It wasn't something you could call an overhaul, but at least it was now clean. Until now, it was like a patient with hardened arteries. Well, as long as the engine had come out, I decided to change the nuts and bolts aroud the front and rear tires. When the clutch was opened, we found a big scratch on the clutch disk. The clutch had been worn down to the point where the bolt had scratched the disk. So this also had to be ground and polished. It all turned out to be much more than initially expected, but I am still glad that the engine had come out so these issues could be dealt with early on.
These days, my work life has become considerably more complicated and lots of issues have come up - so I have had to leave my blog alone for a while. In any case, my .122 has been hospitalized for a engine inspection, just as Mr. O's Mr. 123 has been hospitalized for body repair, metal and paint repair. But, when they tried the drain cock under the engine, nothing came out - where normally, you can drain out the coolant water. So, out came the engine and the engine head. Out came the ugly reality of the inside of the engine. As I had expected, there was a pile of rust around the water line of the engine cylinder towards the bottom of the engine. There was sludge all over the side. When the oil pan was removed, there was an ugly pile of thick black stuff - almost like tar. I had been using high quality engine oil and had been very careful about the water level, but this now seemed all useless. Because the .122 had not been driven around much, the previous owners must have left it alone and not done any water or oil change. Anyway, the rust around the water line was scratched off, washed off on high pressure and the sludge was cleaned off as much as possible. It wasn't something you could call an overhaul, but at least it was now clean. Until now, it was like a patient with hardened arteries. Well, as long as the engine had come out, I decided to change the nuts and bolts aroud the front and rear tires. When the clutch was opened, we found a big scratch on the clutch disk. The clutch had been worn down to the point where the bolt had scratched the disk. So this also had to be ground and polished. It all turned out to be much more than initially expected, but I am still glad that the engine had come out so these issues could be dealt with early on.
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