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Amber like material in exhaust

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Old 12-07-2012 | 06:04 PM
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Originally Posted by mike tkach
i also see white stuff around the end of the valve seat,and looks like a lot of rust on the freeze plug,strange since they are brass when they leave mercury.
I think that's a head bolt washer you are seeing.
Eddie
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Old 12-08-2012 | 08:41 AM
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Originally Posted by Young Performance
I think that's a head bolt washer you are seeing.
Eddie
I agree
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Old 12-08-2012 | 08:51 AM
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Originally Posted by Young Performance
I think that's a head bolt washer you are seeing.
Eddie
yes,its to high to be a freeze plug.
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Old 12-08-2012 | 11:09 PM
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Yes, that's a head bolt.
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Old 12-09-2012 | 08:20 AM
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could a small amount of reversion,be causing this???
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Old 12-09-2012 | 09:08 AM
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Possible, but it is on all 4 sides. And wouldn't it be salt then? I'm still thinking some sort of fuel additive.
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Old 12-09-2012 | 12:17 PM
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Do a bleed down test, my bet is reversion and leaky valves. I have seen this on several 525's with high bleed down numbers, some over 50% with less than 150 hours on them.
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Old 12-09-2012 | 09:22 PM
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I finished breaking down the engine. There was some salt residue on the exhaust runners. Maybe it is reversion an just something in the water.
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Old 12-09-2012 | 10:29 PM
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Originally Posted by EdNewman
I finished breaking down the engine. There was some salt residue on the exhaust runners. Maybe it is reversion an just something in the water.
PSI check your headers if you haven't done so to rule that out.
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Old 12-10-2012 | 02:44 PM
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Have not done yet, but I am now in the tiresome habit of pulling and testing them every winter, even with the new Hardins. So far they have been good, just one pin hole.
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