it rained down my carburator on my brand new engine - Hot Rod Forum : Hotrodders Bulletin Board
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Old 09-30-2010, 10:59 AM
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it rained down my carburator on my brand new engine

enough said. *** do i do now? i finished the engine swap late last nite and i wokee up to hurricane rain with nothing covering the motor. kill me.
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Old 09-30-2010, 11:11 AM
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Pull the plugs turn it over..shoot a bit of wd40 in the cylinders and start it up..you are not the first..

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I have tried most all of it and now do what is known to work..
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Old 09-30-2010, 11:24 AM
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Fresh water leaves surface rust - no biggie if taken care of ASAP. Be just as liberal with something like WD40 as the rain was, and get it fired up. Pull the plugs, spin it over, dump a substantial amount of WD down the carb and do it again. Change the oil. Put plugs in and fire it up to dry out. Letting it sit is where problems show up as surface rust will take root.

WD stands for "water displacement". It's not much use for anything else and not much else is of much use here.
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Old 09-30-2010, 11:36 AM
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just shoot it down the carb without removing it? what about the intake?
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Old 09-30-2010, 11:45 AM
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this blows. i put brand new oil in yesterday. why do i have to change oil too?
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Old 09-30-2010, 12:02 PM
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You could have gotten water IN the carb, we don't know. Worst case, take it apart and check. You DID get water down the intake which is why you'd follow it the WD. Once again, taking it apart is the only way to be sure, but I'd do as I posted if it were me. As for changing the oil, ANYTHING running down the intake that finds its way to the cylinders will leak past the rings - especially new unseated rings. Check the level on the stick and you might see it a bit higher than you left it. Even if it didn't rise, it's still likely got some water in the pan. Water quickly settles to the bottom so if the level on the stick hasn't risen and you don't get water before oil when pulling the drain plug, you "might" be OK. It's up to you to decide if "might" is good enough to rely on for your work. Mine is worth more. I drained the oil in my fresh build after washing it for a repaint. There was about a quart of water in the pan (under the fresh oil) with the exhaust ports and intake taped off. Some tape had come loose on the exhaust, letting water into the cylinder which went straight to the pan. This was a week ago so there's one recent case for ya.
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Old 09-30-2010, 12:06 PM
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WD-40 does NOT displace water...

YOu don't need to go through all of that trouble either.

Pull the plugs, blast out each cylinder REALLY well with an air gun, spray in some WD-40 (not a huge amount though) and check your oil for water- chances are its fine.

People do some really silly things out of superstition/fear.

I would also add Marvel Mystery Oil to the fuel, it slightly increase break in time for the rings but helps clean/lubricate everything.
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Old 09-30-2010, 12:22 PM
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my mistake. motor has 30k with brand new cam so its not brand new but rings are brroken in. idk what to do. some ppl say use wd40 others say dont.
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Old 09-30-2010, 12:37 PM
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Quote:
Originally Posted by jls4speed
my mistake. motor has 30k with brand new cam so its not brand new but rings are brroken in. idk what to do. some ppl say use wd40 others say dont.
Most people don't know what WD-40 is. Rednecks swear it'll cure cancer. A little will help, but its not needed.

What is needed is removing as much water as possible by blowing air through the cylinders with your air gun. Since its a used engine I would say definitely use the MMO and put it in your oil too, it'll help clean everything up. Just don't let it sit too long without starting it up.
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Old 09-30-2010, 12:49 PM
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I would do as one of the earlier post say . Pull the oil drain plug first to let any water out of the bottom of the pan . Then pull the spark plugs and spin it over to shoot any water out of the cylinders . If you have it ready to run you won't have to spray the WD40 If not ready to run spray in a little WD40 and spin it over again to coat the cylinder walls. I would put some gas antifreeze in the tank to get rid of any water in the carburetor if you don't want to pull the top off of the carb. After you run the engine for awhile I would check to see if the engine oil is gray or milky . If either is the case you'll need to change the oil and filter . You haven't hurt anything yet .
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Old 09-30-2010, 12:50 PM
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Quote:
Originally Posted by turbolover
WD-40 does NOT displace water...
Gee, that would come as quite a surprise to the guys that invented it.
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Old 09-30-2010, 12:55 PM
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Originally Posted by XNTRCI-T
Gee, that would come as quite a surprise to the guys that invented it.

I'm sure they're aware of it.
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Old 09-30-2010, 12:55 PM
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No redneck here, and I hate WD. It's the one thing it's useful for though, is water.

http://www.wd40.com/about-us/history/

There's 3 ways to do this. Tear it all down (right, but overkill)

My suggestion which is a bit overkill but not too much work at all.

Cross your fingers and hope all's well.

MMO is pretty useless in the gas unless you put enough to swell the o-rings and needles in the carb, but that's a post we'll wait for a month from now. Pouring it in place of the WD is a good alternative, though.

All are viable suggestions. Without all the name calling and childishness, feel free to choose whichever best suits your needs. My borescope shows mine to be in good shape after WD the day it happened and PB Blaster a few days later.
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Old 09-30-2010, 12:57 PM
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Quote:
Originally Posted by KMatch
No redneck here, and I hate WD. It's the one thing it's useful for though, is water.

http://www.wd40.com/about-us/history/

There's 3 ways to do this. Tear it all down (right, but overkill)

My suggestion which is a bit overkill but not too much work at all.

Cross your fingers and hope all's well.

MMO is pretty useless in the gas unless you put enough to swell the o-rings and needles in the carb, but that's a post we'll wait for a month from now. Pouring it in place of the WD is a good alternative, though.

All are viable suggestions. Without all the name calling and childishness, feel free to choose whichever best suits your needs. My borescope shows mine to be in good shape after WD the day it happened and PB Blaster a few days later.
I recomended the MMO to clean the carb and deposits that may form from poor ring seal (resulting from surface rust in the cylinders) MMO is often used for that.
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Old 09-30-2010, 01:02 PM
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I read the WD40 website . But from my personal use it is the least reliable thing I have ever used to prevent rust formation . CRC made a full line of rust preventatives and penetrants , but I haven't seen any in a long time . CRC 556 was the penetrating oil and CRC 336 was the rust preventer .LPS is good as is PB blaster. I let my wife have the WD40 since it is made out of fish oil and is safe to use in the kitchen .
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