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I thought I would mostly put the engine back together this weekend but saw this Friday



and I'd lost about 1/4 psi from here



to here



The coolant temp sensor I had kind of cobbled sealant into it to get it sitting where I wanted and just forgot to to fix while the heads were off so this isn't a huge surprise and of little concern.  This could easily be the 1/4 psi because I'm pretty sure there was next to no air in the system when I capped it so even a small leak should make a pressure drop....but....I decided to fork out $26 for a 5.6mm wifi camera to have a look in the cylinders and it finally arrived this evening.



No coolant.  I will also need to pull the sump cover to replace leaking shifter shaft seals so I'll take a look in there too, just to be sure.

Now, there is another issue I was pretty sure would happen.....aviation sealant .  Kind of weird pic as its shot with a the mirror attached and the wide angle lens is also looking around the mirror...but the important part is the sealant



Its pretty much every bore...need to ponder this a little bit.

Well, I guess you could burn it off with combustion. Maybe some bench testing of different way to clean it up. Getting it out I think is the issue. I am sure you can break it down, but can you suck it out after that?

_________________
Wade Williams
Master Ferrari Tech
Restoration Tech
Engine Machinist
Fabricator
Racecar Driver

The concern is it damaging the rings or flaking off and getting stuck behind the rings which could then damage the cylinder wall before the combustion heat burns it out.  I'm leaning toward pouring lacquer thinner in it and rolling the crank back and forth slowly to wash it off as its a non-hardening solvent based sealer....but just popping into my mind is I don't know what that might due to the piston coating

I would think upside down and wash it out with brake cleaner or lacquer thinner. Piston and rings are not involved then. Winzer brake cleaner it the bomb. That stuff cleans everything and flash dries with nothing left over. Great stuff.

_________________
Wade Williams
Master Ferrari Tech
Restoration Tech
Engine Machinist
Fabricator
Racecar Driver

all better I think

I tried  (denatured) ethyl alcohol because I had a gallon and dissolved the stuff just fine in a bench test so I poured some in each hole, rolled the crank, sucked it out and it was clearly dissolving something



I did it 3 times, then blew it out and put in some wd-40 to coat everything and it looks fine now.  I can't really clean above where the rings sweep but I don't think I care about that so I'm calling it good.

Do you need to spray some cylinder lube in the cylinders now?

I put some WD-40 in them thinking I wanted to get the alcohol off the surface and get them protected and lubed without adding anything too heavy knowing the rings are not really seated yet...not to say it was the best choice or even a good choice, this is just not something I've ever done so its a guessing game for me

Between snow and letting myself get distracted thinking about the Lincoln project it was not a very productive weekend. I finished filtering coolant, finished cleaning old sealant off heads and bolted the cams in...timing cover next weekend I guess.

Ok, enough screwing around, Lincoln pushed back into the corner to wait its turn...i may need to put a cover on it so I stay focused.



I've been dragging my feet on the timing cover because additional action was required.  The last time I assembled I realized once the gasket was glued and most everything torqued that I had bolt location issue.  Repairing the heads meant milling them, and that lowered them.  Each head has 2 bolts that clamp the timing cover to it....I added them to the TR heads to make the 400 timing cover work and with the heads remilled they got pretty buggered with me trying to get the bolts in



 so today I slipped the cover on and found a drill bit that just fit though the cover holes and made centers match the start of the hole, then switched to the helicoil bit and drilled, making a nice oval



There were still some threads on the bottom so wen I tapped I used a block to keep things straight and was careful to to let the tap follow the existing bottom threads.



then coils in, clean it up and ready to actually install the cover

The timing cover is back on and cams timed.  Cam covers and intakes tomorrow hopefully.