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Hello,
I have a 427 Chevrolet. I am having a problem with water getting into cylinder number 1. I took off the intake manifold and found milkshake in the water ports next to the number 1 and number 2 cylinders and a slight shake in the number 1 intake port runner. Though there is no milkshake on the engine dipstick. The only thing I did to it that could possibly allow this was I put on a new intake gasket? Even though the gasket looked fine I am hoping this is the problem. What else could cause this? Thanks.........Lumpy
Also forgot to add that the boat was stored inside a garage filled with coolant and the temp never got below freezing over the winter. Thanks
[ May 18, 2003, 12:51 PM: Message edited by: Lumpy ]
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I'll assume you haven't change your exhaust or water manifolds and you never had this problem before. There's a chance the intake gasket leaked at the water port, but most of the time water goes in the crankcase instead of #1 cylinder. There is also a chance that the cylinder pin holed over the winter. The way to check that is to use a leak tester with rocker arms removed on #1 so that both valves are closed. Put the piston a BDC and leak it. If your losing a bunch more air leaking the cylinder at the bottom rather than the top, or you notice pressure in your water system, you probably have a pin hole. This is just some checks you can do as your chasing the problem. You can also leak cylinder #1 with valves closed and remove rockers for cylinder #3 and the spark plug. Put air to the #1 cylinder and see if air is coming out #3 plug hole. That indicates head gasket not sealing between cylinders.
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Thanks for the reply Fiat,
Well I did a leakdown test on all the cylinders. Not good. Cylinders 3 & 5 have leaking intake valves and cylinder 4 has bad rings. Time for a rebuild. Weird thing is cylinder 1 held pressure fine. Thanks for your help.....Lumpy
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Lumpy:
Thanks for the reply Fiat,
Well I did a leakdown test on all the cylinders. Not good. Cylinders 3 & 5 have leaking intake valves and cylinder 4 has bad rings. Time for a rebuild. Weird thing is cylinder 1 held pressure fine. Thanks for your help.....Lumpy So even though you found these other problems you still need to find the water in #1 problem. Would be a shame to rebuild it and have the same water problem when done. Now would be the time to find it before you tear it down. Just my .02
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Just did another test just to make sure. I don't think I had number 4 exhaust valve all the way closed because now it holds pressure. Now number 1 seems to be leaking from the exhaust valve. I think I need to take a break and slam a 12 pack before I continue :D Thanks guys for all the help..............Lumpy
