Mustang5l5's Progress Thread - Archived Progress thread '08-'20.

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Just chipping away at cleaning these pistons up. Lots of elbow grease and care to not use anything that would leave little abrasive bits everywhere. 5 done but I’ll likely go back over them one more time.

First pass on pass side bank
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5 and 6 cylinder. Before and after
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Worked a bit on cleanup late last night.

About as far as I can take cleaning the pistons without using scotch brite or anything that I don’t want little shards of getting in the engine. Just used solvents (simple green/marvel mystery oil) and plastic tools here.

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Pulled the factory block heater plug. The wingnyt was busted. The only thing sealing the screw from leaking was the threads. As you may have seen this was starting to leak a tad. No idea how I would have done this with engine in car

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Now to clean up the timing cover gasket surface and the block deck and then get ready for paint.
 
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Little experiment. Picked up s can of this. Supposed to be pretty good at removing carbon. Pretty caustic stuff though, and label is full of cancer and other health warnings.

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I’ve read about leaving it in for too long and destroying the piston/cylinder, so I decided to try it on my heads since they are likely boat anchors now considering the valve seals are mostly petrified and they need a rebuild

Let’s see what happens on that one combustion chamber

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That is why I ended up picking up my 347 shortblock. Once I had all the parts gathered, I started getting second thoughts about bolting them on my 112k mile shortblock. I stumbled on a good deal though, and the PO had all the receipts from Woody. Otherwise I may have just pushed forward.
 
Anyone recognize this little bit? Found it in the bottom of the oil pan as I was cleaning/inspecting it. No other metal or shavings found...just this.

It’s not a ball...it looks like a tiny freeze plug

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I feel like I’ve seen this before somewhere
 
More inspecting. Finally took a closer look at the heads. Wtf is going on here?

Looks like a layer of carbon, and then a separate layer formed on top on the valve.

Lots of carbon in here. No wonder I had problem running 10 degrees of timing and 87 octane.

I should probable rehone and rering this anyway...just to be sure it’s vskve seals. I had great compression on this

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So...just surfing around researching...interesting dyno.

331 w/AFR165 and a few intakes. Gt40, Holley ststemmax, and then gt40 and explorer with porter lower.

Interesting how the gt40 and explorer were not similar at all despite the claims.

FYI I was planning on running explorer with ported lower...looks like I need to find a gt40.

@95BlueStallion you might be interested in this


View: https://youtu.be/zmfz5caUNWY
 
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