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Old 03-05-2014, 04:32 PM
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What's this inside 351W waterjacket?

I took the bad freeze plugs out of my 351W and cleaned out a lot of rust. Found this rod thing in the waterjacket of the middle plug on the side of the motor. Can anyone tell me what it is?
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Old 03-05-2014, 04:57 PM
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Ummm, part of Jimmy Hoffa's belt buckle?
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Old 03-05-2014, 05:09 PM
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Its possible that it was used in the manufacturing process. My Pontiac engine had something similar inside.
I believe the piece is to help support the casting sand before molten Iron is poured into the mold. At least that is what I have read and heard over the years
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Old 03-05-2014, 05:15 PM
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Quote:
Originally Posted by LATECH View Post
Its possible that it was used in the manufacturing process. My Pontiac engine had something similar inside.
I believe the piece is to help support the casting sand before molten Iron is poured into the mold. At least that is what I have read and heard over the years
Correct, Fords are famous for them. They usually get hammered out when the core sand is removed, but I see many of them that remain..
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Old 03-05-2014, 05:20 PM
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Originally Posted by LATECH View Post
Its possible that it was used in the manufacturing process. My Pontiac engine had something similar inside.
I believe the piece is to help support the casting sand before molten Iron is poured into the mold. At least that is what I have read and heard over the years
That's what I was thinking/hoping since the one on the the other side is rusted through. Couldn't find anything on it anywhere.
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Old 03-05-2014, 06:45 PM
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I just replaced the core plugs on a late 302/5.0 XXX block and there is one inside the front LHS that is partially molded into the casting iron. Hopefully you flushed that crud out of there. I used coat hanger wire and a long skinny screw driver through the core plug and head holes. Amazing how much fell and washed out of the block as well as the heads.
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Old 03-05-2014, 08:37 PM
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I just replaced the core plugs on a late 302/5.0 XXX block and there is one inside the front LHS that is partially molded into the casting iron. Hopefully you flushed that crud out of there. I used coat hanger wire and a long skinny screw driver through the core plug and head holes. Amazing how much fell and washed out of the block as well as the heads.
Ha! you should have seen it when I pulled the core plugs. Vacuumed out a ton of crap. Will spend more time on it though for sure.
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Old 03-06-2014, 05:29 AM
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Ha! you should have seen it when I pulled the core plugs. Vacuumed out a ton of crap. Will spend more time on it though for sure.
This is one of several piles. The engine is low miles <2500 in my '31, always had distilled water with 50% antifreeze. It's going back together with a zinc anode in each of the block drains as well as the radiator drain plus an Zerex GO5 antifreeze for aluminum.



That's one anode in the right front drain hole. The original steel core plugs that came out had zero rust but were replaced with brass:



(That piston - just sitting there waiting for me to take my picture)

You can buy those anodes here very inexpensively - and they are shipped to you in 3-4 days:E-Series E-0,1234567- E-8 For Common Marine Engines Anodes

Dave W
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Old 03-06-2014, 12:07 PM
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Thanks Dave, I'll look into that. Mostly I just want to get this thing on the road as it's been going on for far too long. It's just going to be a truck to pull my travel trailer, but I don't want it overheating either!
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