Pics of the head and block after teardown

[digitech]

Here are some pics after taking the head back off. Engine has been run in the garage off and on since Thanksgiving, about 20-30 min. at a time. I'm not seeing anything - there's a small place on the #1 intake and maybe a scratch on the corresponding piston? Anyone else see anything???



#4


#3


#2


#1


#1 Closeup


#1 Piston

[bradartigue]

What is it doing wrong?

The combustion looks uneven, two cylinders white-ish and two oily black-ish. Could be as simple as a stem seal leak on the valves.

[majicwrench]

Why did you tear it down??
That #1 intake has hit something. more than likely a bench or the block as it was being removed, at least I can't see any sign of it hitting piston.
Why did you tear it down??

[fiatfactory]

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[digitech]

Always good to have another set of eyes, thanks guys! I missed that mark on #1 combustion chamber Steve- guess I need new glasses. I would have thought I'd of seen corresponding marks on the #1 piston crown but what do I know.

The head was removed to try and determine why I've had that tap, tap, tap noise - see my earlier posts, "saga continues, new engine issues, etc."

Although you may be right in that the combustion looks a little uneven, the plugs don't show that - each is dry with a little sooty carbon, eactly what you'd expect from operating at idle only. The "white'ish" exhaust valves you see are actually fairly clean valves and the oily-looking intakes are not really oily at all. Just the way my pics turned out.

The amatuer grinding was done because when the engine came back from PAECO!!!, a dry fit revealed the pistons were catching on the chambers - they never checked them!

The head is being packed up to send to Jon Logan, I know he'll make it right - just waiting on the Guy Croft cambox gaskets so I don't have to worry about the cambox oil leaks anymore.

[majicwrench]

"Pistons were catching on the chambers" can you clarify that?? Don't understand "catching".
Keith

[digitech]

Poor choice of words - bumping actually on # 1 & 4.

[fiatfactory]

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[digitech]

These are the "HC pistons" supplied by Paeco - they are marked as "Venolia" and wherever they came from, we waited months for them. I was told by the local shop I took the block to undo Paeco's mess that they were very good pistons but they were used not new. Of course, I paid Paeco for new.

The spot you see Steve must just be the pic-went back out and looked at the piston and I can't see anything.

Then head is going to Midwest124 and I will let Jon make the call as to what needs to be done. I am out of money for this car; for what I have spent, I could have bought a beautiful Spider, turn-key and been driving it all this time. So our fix will have to be cost-effective and cost-consicous and possibly not optimum. You have most likely identified why my compression was low at 135psi. That said, unless there is something drastically wrong with the block, it's not coming back out of the car so we'll see what can be done with the head that I have. I believe to scrap it, Jon would have to have the block to work from and that just isn't going to happen unless he can't save the head.

[fiatfactory]

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[majicwrench]

Nothing wrong with 135lbs compression, and that really is diff from static compression ratio.

[Five40iguy]

That "nick" on the valve I wouldnt worry about, it looks like it didn't go as far as the face of the valve so your seating capacity is not diminished. If your going to do a valve job make sure the 45 degree "re-face" is not compromised by the nick If no you should be good to go.

Happy "wrenching " and motoring