How to prevent oil from pushing through breathers?
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Vinny,I extended my tubes on the valve covers like I have done on circle track motors,I also mounted both tubes to the front of the valve covers(no rear) so the oil won't climb up the vent from high speed. When my rings start to get tired/leakdown goes up before I freshen the motor I run rolled up scotchbrite in the tubes to help stop the oilfrom making its way out. I tried a homeade puke tank using -8 hoses to a small tank on a blown 502 years ago but the oil would vent out of the tank and it started pressurizing the motor and pushing the seals out,Smitty
I attached a couple of pics,if you look close you will notice the breather elements on top of the tubes,the tubes are approx 10" tall.
I attached a couple of pics,if you look close you will notice the breather elements on top of the tubes,the tubes are approx 10" tall.
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Standard tension. With the low tension I have seen about 7 HP or so more. I have dynoed about 50 engines we have done alot a vacuum testing on and every one has had the same gains in power. I have a new system which is going through the patent office right now.
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Here is some more info/opinions on engine vacuum.
http://speedtalk.com/forum/viewtopic.php?=&p=49495
http://speedtalk.com/forum/viewtopic.php?=&p=49495
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Smitty,
I have thought about extending the height of the breathers as you did. Today, I have come to a decision on what I am going to do. I ordered Imco's 10" x 3" puke tank. I came up wih a good way of using my existing valve cover adapters to plumb 2 -12 AN lines to the tank. I can incorporate enough fuel cell foam in the adapters if needed to limit the flow. It should look good, I just hope its functional.
I have thought about extending the height of the breathers as you did. Today, I have come to a decision on what I am going to do. I ordered Imco's 10" x 3" puke tank. I came up wih a good way of using my existing valve cover adapters to plumb 2 -12 AN lines to the tank. I can incorporate enough fuel cell foam in the adapters if needed to limit the flow. It should look good, I just hope its functional.
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I had the same problem with a customers boat last year and I welded # 16 fitting into the valve covers, repowder coated them and ran hoses to the flame arrester. Problem solved
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The quickest and cheapest way is to extend the breather tubes before the filter vents.Inbetween the filter and valve cover.Once the filter is up higher,it will be alot harder for the liquid oil to travel up,then only vapor oil will come out the filter which is normal. all needed is a few hose clamps and some type of tube.
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The quickest and cheapest way is to extend the breather tubes before the filter vents.Inbetween the filter and valve cover.Once the filter is up higher,it will be alot harder for the liquid oil to travel up,then only vapor oil will come out the filter which is normal. all needed is a few hose clamps and some type of tube.
Yeah, but it depends on what you're looking for - this thread has gone from vacuum pumps at one end of the cost/cleanliness spectrum to your simple fix for oil liquid.
The residue left inside the engine compartment from oil (& combustion) vapour is corrosive and accelerates the deterioration of all of the components. MrHP(aka Mr Clean) hit the nail on the head with the vacuum pump - its "the" proven solution today to remove this dirty condition, although most of us can't afford it - either space for the pump or money to buy it.
Just my .02 over morning coffee.