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lets back up for a sec Posted by vvack0matic [Email]  (#1443) [Profile/Gallery]
(more from vvack0matic) on Sat, 28 Apr 2007 13:33:37
In Reply to: thanks-i'll sacrifice a hg to find out! nm, nicknick  [Profile/Gallery]
, Sat, 28 Apr 2007 10:41:18
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when the car kicked the bucket and over-heated i can only guess it was puking a cloud of white smoke out the tail pipe form the radiator fluid being burnt as she was running,
the numbers on the head my be the marks of early compression checks done on that head, that is if it has four numbers ranging from 100 to 130
the 110 may be before the first head job was done and that indy took readings marked the head , rebuilt the motor and then rechecked the compression with the before and after.
but this is just a guess seeing how you only stated in your initial post there are (numbers) like, and dont state just how many.
now on to the rebuild, its very hard to say anything about how the rings fared because of lack of info.
a clear description of the last days the car was running, as in (white/black/brown smoke could be seen coming from the head with huge white clouds coming from the tail pipe.)
anything small like this can be taken down to the damage that was done.
but seeing how we are left in the dark of what happened after the hose blew and overheated the motor to cause gasket failure, we can only assume that it was a text book head failure and in which case would be very easy to know if your rings where fried in the processes.
if it was indeed textbook failure and if the rings where fried in the processes you could tell just by pulling your oil dip stick, you would find rad. fluid mixed with oil. no other way could your rad. fluid get to your oil pan except through the piston rings.
(something to try however i would never do it, fill the two piston chambers with water for an hour or two, then check oil pan. next turn the shaft for the next two.)
on a text book head gasket failure the piston chambers would get flooded with rad. fluid, but the sad thing in this test only 1 or 2 chambers would get flooded, there would of ben a miracle if all four chambers where flooded at the point of head gasket failure.
on a non text book failure, the rad. fluid would escape out the hose, the motor would red line, and the driver would pay no attention.
the valve cover gasket would fry dripping oil all over the exhaust manifold sending burnt oil smell into the cab, and still the driver would make no never mind, then the valve seals would melt sending and overwhelming of oil into the chambers causing the car to miss-fire, and sending a constant blue/brownish cloud out the tail pipe, but still the driver would keep on. when this happened the oil that flooded the chambers actually work in the drivers favor, soon it hits the cylinder walls the rings temp will come down,
but sadly it will only come down for the one chamber that had the valve seal go leaving the rest of the pistons to fend for them self.
but in the end im sure it would not be long for the rest of the seals went and causing flooding throughout all four chambers with an overwhelming amount of oil killing the motor because the spark plugs were flooded out.
but then theres a chance that only one of the seals bit the dust and the rest were made out of iron (figure of speech)
the one valve that lost its seal im sure would jam before to long, bending itself or breaking in two sending fragments into the chamber, a close inspection of the tops of the pistons looking for any sings of damage would tell if this was the case.
if the block is not cleaned yet (in getting ready for new gasket) and the old gasket was removed and tossed, a close inspection around the rim of the piston chamber will show if rad. fluid had entered a chamber or not, the rad fluid would actually clean off a portion of the rim.
but seeing how there are so many variables on what could of happened and no info. popping the new gasket may be the only way to find out.
perhaps assemble the motor out of the engine bay or just hovering in the bay of the car with the hoist still hooked to the motor. wire it up run a compression check.
if i was to take a guess on if the rings where destroyed with the info we have
textbook failure 17% rings got destroyed
non-textbook 54% rings got destroyed
posted by 70.152.21...
, Sat, 28 Apr 2007 07:48:43
, Sat, 28 Apr 2007 16:39:25, Sat, 28 Apr 2007 17:37:39
, Sat, 28 Apr 2007 08:37:54, Sat, 28 Apr 2007 08:56:38, Sat, 28 Apr 2007 10:41:18, Sat, 28 Apr 2007 13:33:37 <-- Viewing This Message, Sat, 28 Apr 2007 16:20:06, Sat, 28 Apr 2007 18:38:52
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