350 Mag 2nd Head Removal

[FreeBeeTony]

I removed the 2nd head tonight (cylinders 2-4-6-8). Here is a pic.....notice #6 is a little "steam cleaned". Not as much as #5, see second pic.<br /><br />

<br />2-4-6-8<br /><br />

<br />1-3-5-7<br /><br />Is this scenario possible?<br /><br />1) #3 cylinder looses compression due to a leaky head gasket and draws coolant into the cylinder, however it doesn't fire due to a lack of compression, hence the piston is not clean.<br /><br />2) The intake manifold is now contaminated with coolant and the next 2 cylinders fire with coolant. Due to the firing order 1-8- 3-6-5 -7-2, that would be 6 and 5.<br /><br />Does this make any sense at all? I am trying to figure out why #3 was dead and the next 2 cylinders in the firing order look like they had water intrusion.<br /><br />I am convinced that whoever put this engine together didn't tighten the bolts properly, one of the bolts on the starboard exhaust manifold was barely more than finger tight. And as I said the head bolts on the port side weren't very tight. The head bolts on the starbord side seemed ok. That's why I am thinking the intake charge became contaminated somehow and was delivered to #6 and #5.......

 

[rbezdon]

Re: 350 Mag 2nd Head Removal

I think you have a good theory tony. The intake is shared and the cylinders are the ones physically close as well as the ones to draw in next based on the firing order. <br /><br />I told you may old 327 ate a piston and I found parts of it in another cylinder. The only path was through the intake. <br /><br />By the way, it is 1, 8, 4, 3, 6, 5, 7, 2, you're short a few #s.

 

[FreeBeeTony]

Re: 350 Mag 2nd Head Removal

opssssss.......guess I missed #4.........<br /><br />Does it still make sense?