singleslammer
singleslammer PowerDork
2/11/23 10:41 a.m.

So this has been floating around for a while. It is a Ford 5.0l with a Roush supercharger. They are asking $3500 which seems optimistic to say the least. However, is there any chance it could be salvaged? For $1500 say, it might be worth buying and replacing everything that isn't metal. 

Product photo of 2017 Ford F150 Engine roush supercharger

https://www.facebook.com/marketplace/item/572566004752145/

codrus (Forum Supporter)
codrus (Forum Supporter) PowerDork
2/11/23 11:48 a.m.

How many aluminum parts are on it?  Car fires can get very hot, enough to melt aluminum.  That would be visible, but even if it didn't get that, it will anneal it and remove the heat treatment.  I dunno how many engine parts are heat treated as opposed to just cast aluminum though.

Another factor is that the chemicals often used for extinguishing fires are corrosive and once baked onto the surface are very difficult to remove (this is how they work in smothering the fire).

Was the engine running when the fire happened and was put out?  Did it ingest any retardant?

This may be overly conservative, but if it were me I would set the value based on the assumption that everything in the engine that's made of aluminum is junk, and that all of the iron/steel parts need to be disassembled, inspected, and cleaned before being used.  How much is it worth if that's true?

 

Mr_Asa
Mr_Asa UltimaDork
2/11/23 11:59 a.m.

$500, maybe.

The cast iron parta are probably fine, however you'd have to tear down the SC and see if it warped at all, and you'd need Roush specs for that.  Even then the temper of the metal may have been hit.

For Challenge money, yeah.  Anything above Challenge money?  Well, its not my money...

Patrick
Patrick MegaDork
2/11/23 12:20 p.m.

whole lotta nope from me

wae
wae PowerDork
2/11/23 12:24 p.m.

I'd nope out of that.  Although I lack the data point of what a non-crispy one would cost.  I mean, if one that wasn't burned up is $50k, then maybe that's a deal.

frenchyd
frenchyd MegaDork
2/11/23 1:02 p.m.

It really depends.  The easiest way to find out is put a wrench on the crankshaft  bolt in the vibration damper. If it turns over freely it's probably good. If the valve cover gaskets aren't burned then almost certainly it's OK. 
       That can happen in a lot of cases.  Injector hoses leak, spark happens and fire starts. If the hood is on, the fire quickly extinguished itself. From lack of oxygen. 
   Fire department still seeing smoke pry's  up the hood  and fresh oxygen Re flashes the fire.  Hose is shoved in and fire goes out for good. 

RacerBoy75
RacerBoy75 Reader
2/11/23 1:28 p.m.

It's worth the scrap metal value - simply too many unknowns.

singleslammer
singleslammer PowerDork
2/11/23 1:51 p.m.

This is all what I was expecting. Thanks for completely removing this insanity from my mind.

kb58
kb58 UltraDork
2/11/23 2:57 p.m.

If you don't really Need it, have the time, and money's no issue (read: can throw away with zero regret), then sure. Otherwise, nope.

GeddesB
GeddesB Reader
2/11/23 4:15 p.m.

I would be a no based on the potential for metallurgical metamorphosis. 

dculberson
dculberson MegaDork
2/12/23 12:56 p.m.

Another concern is that it looks like it's sitting in the woods. How long has that been? It's clearly not sealed up so internal water damage is very posssible. 

dean1484
dean1484 MegaDork
2/13/23 8:29 a.m.

What ever a used short block goes for and then cut that in half is what it is worth. You will have to re seal the entire motor. Due to heat damage. It looks like a fuel rail fire. Also you would have to scope that motor. If water got in the cylinders it is not worth anything.  

dean1484
dean1484 MegaDork
2/13/23 8:43 a.m.

What ever a used short block goes for and then cut that in half is what it is worth. You will have to re seal the entire motor. Due to heat damage. It looks like a fuel rail fire. Also you would have to scope that motor. If water got in the cylinders it is not worth anything.  

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