Head gasket help

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mydogsname

Re: Head gasket help

Post by mydogsname »

Hey guys, back again,
After replacing the aux shaft, i got her back up and running. everything was looking good until i took it down the block and started getting a chatter noise that sounded like something metal inside the clylinder. What I found today was this:
ImageImage
Inside Cylinder 1ImageImage
I found a tiny chunk of aluminum in the bottom of 2nd cylinder; evidently broken off from head. It appears to me my head is disintegrating. I don't know what else to call it.
Anybody got an opinion?

Is it bad to use carb cleaner or starting fluid on head surfaces? If so:...oops.
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RoyBatty
Posts: 852
Joined: Sat Aug 28, 2010 11:44 pm
Your car is a: 1975 124 Spider - 1971 124 Sport Coupe
Location: Locust Grove, VA

Re: Head gasket help

Post by RoyBatty »

In the pic that shows the inside of the cylinder, it looks as though you have what is left of a crimped on ring terminal electrical connector sitting on top of the piston.
You didn't do your engine any favors, but if there are no holes and or cracks in the head or the piston or cylinder, you could clean up the rough edges with a fine sanding drum on a dremel and reassemble the head to the engine. Don't remove anything but the high spots.
MAKE DAMN SURE you don't let anything else fall into any of the spark plug holes.
Oh, also turn the cams thru several revs and watch the function of the valves.
Make sure they are opening and closing properly to check for a bent valve and or something stuck in a seat.
Good Luck
With regards to cleaning the metal, you are fine with the fluids you mentioned. Just work with caution with all cleaning solvents.
mydogsname

Re: Head gasket help

Post by mydogsname »

RoyBatty wrote:In the pic that shows the inside of the cylinder, it looks as though you have what is left of a crimped on ring terminal electrical connector sitting on top of the piston.
.
hey thanks for the reply. the only piece of loose debris i found was a tiny chunk of aluminum that looks like it chipped off the head. what concerns me is that same thing is happening in all 4 cylinders. if it was a foreign object inside then the damage should be localized to the chamber it fell in. right?
131
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Joined: Sun Nov 14, 2010 1:13 am
Your car is a: 1982 131 Superbrava warmed 2.0 litre.
Location: Tasmania, Australia

Re: Head gasket help

Post by 131 »

The bore is stuffed in number 1 if it's pitted with rust holes as it appears to be in the photo.
Mick.

'82 2litre 131, rally cams, IDFs & headers.
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seabeelt
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Joined: Tue Feb 19, 2008 4:22 pm
Your car is a: Fiat Spider - 1971 BS1
Location: Tiverton, RI

Re: Head gasket help

Post by seabeelt »

Neil, those marks were not caused by pieces of the head flaking off. There was something in there bouncing around enough to really gouge the heck out og the aluminum of the head. I would check the intake and exhaust ports and around the valves to make sure whatever was in there is completly gone. The rust on the cylinder bore is more of a concern Could be the water jacket about to fail unless its just surface rust. Hard to tell from the photo
Michael and Deborah Williamson
1971 Spider -Tropie’ - w screaming IDFs
1971 Spider - Vesper -scrapped
1979 Spider - Seraphina - our son's car now sold
1972 Spider - Tortellini- our son's current
mydogsname

Re: Head gasket help

Post by mydogsname »

131 wrote:The bore is stuffed in number 1 if it's pitted with rust holes as it appears to be in the photo.
Sorry, what do you mean by "stuffed bore"?
The picture inside the cylinder I took to show that rough spot on the wall. That the only incidence of rust. All the pitting is present on pistons and around valve seats.
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RoyBatty
Posts: 852
Joined: Sat Aug 28, 2010 11:44 pm
Your car is a: 1975 124 Spider - 1971 124 Sport Coupe
Location: Locust Grove, VA

Re: Head gasket help

Post by RoyBatty »

They are referring to the vertical line of corrosion in the cylinder.
Take some red scotch Brite and scuff that area to see if there is a crack under the rust.
A single piece of foreign material can travel from one cylinder to another thru the valves due to flow thru the system from valve overlap.
mydogsname

Re: Head gasket help

Post by mydogsname »

RoyBatty wrote:They are referring to the vertical line of corrosion in the cylinder.
Take some red scotch Brite and scuff that area to see if there is a crack under the rust.
A single piece of foreign material can travel from one cylinder to another thru the valves due to flow thru the system from valve overlap.
Thanks for clarifying, I'm learning as i go unfortunately for my car :lol:
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