Cylinder compression 150 per cylinder good?

Jan 13, 2004 28 Replies

Thanks for the informative reply Steve. I have tried the water method once and cannot be sure of the results. I'm looking at a product called BG 44K which is reported to have excellent results in cleaning injectors, carbon, etc.

Thanks,

Bill

You will not clean the injectors by pouring stuff down the intake manifold.

If you pour into the intake manifold slow enough to not stall the motor, there is no danger of hydro-locking the motor. As for the injectors, you will clean the very tips of them with this method, but this is not what they do when they talk about injector cleaning. To clean the inside of an injector, you have to introduce the cleaner into the fuel supply somewhere.

Actually that's what this stuff is. You add it to the gas tank and run it through the system. It's suppose to clean, clean, clean.

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bill

But, that stuff will not change your compression. Your injectors are new, and I assume they are clean. Your compression is high, but within reason. You can forget about this "problem" and move on to other things.

Actually my injectors are not new. I bought my kit used so I have no idea of the condition of the injectors. A good cleaning won't hurt.

Sorry, I forgot that you bought a used kit. Yes, a good cleaning never hurts. It won't change the compression, but it certainly won't hurt.

Close to the pencil size. If you have your hand on the throttle and are keeping it say at 1200 rpm or so so it won't stall, the pour speed will be obvious. Too fast and the engine will start to chug down fast.

Mike

Dr>

Play with the throttle plate to get the idle speed to about 1500 ~ 1750 RPM -- it isn't really important how fast it is going, you want it at the high idle speed that you might remember from the olden days when the choke made the motor run fast for the first few minutes in the morning. Then pour in the ATF (water is better from an environmental perspective) at a rate that will not stall the engine.

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