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| FrankenFerrari - V12 ferrari 308 part 4 http://gemellocattivo.com/forum/viewtopic.php?f=2&t=319 |
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| Author: | cribbj [ Sat Aug 31, 2019 10:55 am ] |
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 |
Dayum Mark, both top AND bottom ends were wiped out? WTF happened to that poor engine? |
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| Author: | mk e [ Sat Aug 31, 2019 1:43 pm ] |
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 |
cribbj wrote: Dayum Mark, both top AND bottom ends were wiped out? WTF happened to that poor engine? once the top hammered out that isn't anything holding the bottom right? Its pretty free to spin and join its brother in a better place. The is only about .050" piston to head....a .125" or more valve head just isn't going to fit in the space without a fight....a fight the bearing and rod clearly lost. I guess the good news is I now understand the light scoring n the cylinders....there are bits of bearing on the piston skirts. I'll sand the shirts, hone the cylinders and it will be a little loose but acceptable I expect.....I can't even imagine what lanal would say if I try to order 12 more pistons. |
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| Author: | mk e [ Sat Aug 31, 2019 4:26 pm ] | |||
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 | |||
Found a little more bearing at the bottom of the sump it looks like. It don't see anything on the pickups so probably not much if any damage to the oil pump(s) but I'll inspect that pretty well too.
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| Author: | mk e [ Sun Sep 01, 2019 8:56 am ] | |||
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 | |||
I lied about the scenes being clean...closer inspection found a couple little bits on them. My eyes are not what they once were....I need to be certain I'm just the right distance from what I really want to see, then I see the little bits stuck on the sceen.
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| Author: | mk e [ Sun Sep 01, 2019 4:45 pm ] | |||
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 | |||
I've never has to beat a valve out of the port before.....I'm pretty sure it's not an experience I feel my life was missing
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| Author: | mk e [ Sun Sep 01, 2019 5:31 pm ] | |||
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 | |||
So...the intake port are clean, nothing that looks like oil leaking from the cam galley. Back of the valves also clean. Then the exhaust ports from the chamber right out the port are a gooey mess...hmmmmm
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| Author: | TheDarkSideOfWill [ Sun Sep 01, 2019 9:40 pm ] |
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 |
You mean the exhaust ports are oily? |
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| Author: | mk e [ Sun Sep 01, 2019 10:31 pm ] |
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 |
TheDarkSideOfWill wrote: You mean the exhaust ports are oily? Could be oil...it gooey and a hydrocarbon (or at least cleans up like one) but if it started as oil or fuel I can't really say. |
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| Author: | mk e [ Mon Sep 02, 2019 7:21 pm ] | |||
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 | |||
With family stuff I didn't get as far as I planned....but the heads are torn down and everything cleaned up a bit
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| Author: | MerlinTech [ Tue Sep 03, 2019 7:30 am ] |
| Post subject: | Re: FrankenFerrari - V12 ferrari 308 part 4 |
Well I have my popcorn and big ole soda, I love a good mystery. Ooooh. Maybe the valve seat did it in the chamber with the intake valve,  but who killed the bearing in the pan? 
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