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A collection of helpful articles based on reader submissions
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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
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  Jim Grant's Tech Tips

84 Honda Prelude, Swimming Lessons
Q: I drove my '84 Honda Prelude with Bass boat and trailer attached, to the local lake. The fishing wasn't good, but the incident that occurred when I left, made my day even worse! I backed the boat trailer into the ramp area, leaving the Honda running with the hand brake on. As I loaded the boat onto the trailer with the winch, the trailer, boat and car began moving backwards into the lake! The vehicle became submerged up to the doors while the car continued to run. After a frustrating struggle, I finally pulled the mess out of the lake and began driving home. The engine misfired, bucked and had moments of smooth running while driving home. The gas tank was drained, fuel filter replaced, added fresh gas and several cans of moisture remover. For some time now, the engine runs like it has 3 cylinders and does not idle well. The carburetors are always mentioned as the probable source of trouble. I know the dual side draft carburetors are a pain to work on.-Finding someone that will service them is also a problem. I am wondering how the carbs would have been damaged by water in the gas?

A: If water entered your gas tank and the vehicle was driven, then there's no question that water made its way into the carburetors. The combination of water, aluminum (which your carburetor is made with) and gasoline will cause a rapid formation of corrosion. This corrosion quickly interferes with the very small fuel control and metering passages in the carburetors of your Honda. Adding dry gas or cleaners to the gas tank have little to no effect on this type of corrosion. Unfortunately this fishing tale is going to end with having your carburetors cleaned and rebuilt.

 
     
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