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I found the easiest way to find any leak is using a "smoke machine" if you can get access to one. If you have never seen one work, look on the internet. I have a shop by my house that has one. Its main use is for Vacuum leaks. I would think any big repair business would have one. Good look.
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What would work better for the oil leak than a smoker is adding ultraviolet dye to the oil, run it, then check the oil trail with a black light. Used them in dealers for years, beats the hell out of guessing. The water deal is just a PIA... from what I've heard most common water leak for 455 is the intake, but I seem to remember you already changing the intake gaskets. Try pulling your plugs, adding a fluid to the coolant passages, and pressuring the system. The dye is also available for cooling system diagnostics, too.
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396, did you have your heads resurfaced ??? if so the intake may not be correctly setting down and not sealing...seen this before ...
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Liberator TJ1984:
396, did you have your heads resurfaced ??? if so the intake may not be correctly setting down and not sealing...seen this before ... I agree if you had the heads surfasced you should have the maniflod done by the same people and also use the thicker gaskets. If your oil leak is 2 inchs left of the dist, is it the dist. gasket?
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Ok heres what I came up with. The dipstick hasnt shown signs of water yet,only the filler neck(milky). I used the rubber gasket for the front and rear of the intake, and it may be leaking. The intake kit comes with a gasket for the distributor but the distributor already has a o-ring on it. Should I use the other gasket as well? I am goint to pull the intake tomorrow and install a new gasket and put a thick bead of GM silicone on the front and rear of the intake manifold. Also, I think my temp was acting up so I bought a new sending unit(marine one). i had a car one and a local guy that has been helping me said it is different, so I bought a different one. I will post the results after mt thursday trip. i sure hope this works or I might be showing up at OP6 on my brand new jetski eek! eek! Boy, am I getting tired of this shit fast
396
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Thunderbutt:
Liberator TJ1984:
396, did you have your heads resurfaced ??? if so the intake may not be correctly setting down and not sealing...seen this before ... I agree if you had the heads surfasced you should have the maniflod done by the same people and also use the thicker gaskets. If your oil leak is 2 inchs left of the dist, is it the dist. gasket? The heads werent off that much. He only took a little off, so I dont think thats the problem but it is a good place to start. Thanks for the idea guys wink
396
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I just went to mondollars site and I noticed that they have a high pressure spring for all oil pumps. Will this help me out any?? i also drilled a hole in the rear oil galley plug to oil the distributor, would this affect the oil pressure??
Any help is appreciated greatly. Thanks Michael
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How big of a hole? I think the factory hole was pretty small, like .020", too big and you will loose pressure. The high pressure spring will only help on the top end, not at idle. Most of the engines I've built over the years with stock pumps never went below about 25 pounds. When I'd build something with a HV pump they would never go below 30, usually 35 pounds at idle.
[ June 16, 2003, 08:37 PM: Message edited by: malcolm ]
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