chase73 Posted February 11, 2004 Report Share Posted February 11, 2004 Hey all I just blew the top end on my sled and the piston had a hole melted threw the top and I dont want it to happen twice there are only a couple off possability,s to why it happened. The first I have high compression domes that require atleast 92 octane and the other day I was in a bind lost and had to use shitty 87 octane fuel to get home . The second is a gasket leak ether the base or the top or maybe crank seal . I dont want to split the cases so I want to put it together and do a leak down test .I thought I saw it on the sitre somwhere and I cant fid it any help is appreciated Quote Link to comment Share on other sites More sharing options...
mcaf29 Posted February 11, 2004 Report Share Posted February 11, 2004 Here is my thread on the one I built. But it looks like imagestation has gone to sH@# so there is no picture. Tester Quote Link to comment Share on other sites More sharing options...
robinson373 Posted February 11, 2004 Report Share Posted February 11, 2004 I took two short pieces of radiator hose from a car and fitted them with soft plugs and clamped them tight with hose clamps. They were then put over the exhaust ports on the cylinders and clamped down tight. I then got two more soft plugs that fit snugly in the boot leading to the reeds and brazed an air fitting with a one way valve in one and a pressure gauge in the other. Once these were clamped down with the original clamps I performed the leak down test and it worked perfectly. All of these items should be able to be found at an automotive store, hopefully. I had them all around the shop so I can't be sure. Just be sure you don't have a leak around your braze or one of the soft plugs. Hope this helps, or at least gives you some ideas. Quote Link to comment Share on other sites More sharing options...
chase73 Posted February 11, 2004 Author Report Share Posted February 11, 2004 thanks for the help I will put one together tommorrow to test my sled the dimensions are a little different but, the theory is exactly the same I am hoping its not the cranak seals i dont feel like spliting he cases.OHHHHHH p.s the imagstation is working fine its banshee hq i right clicked the messed the bad pic and got the properties address and justs went to imagstation to see picture Quote Link to comment Share on other sites More sharing options...
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