3010 freeze plugs

jdfamily · Mar 4, 2019

Question guys, and thank you for all the good advice I receive on my questions. Not a mechanic, just trying to learn as I go.
I have a 3010 gas with a loader, my go to tractor. It has a water heater mounted on the side, about the size of a beer can,
and has the plug in to warm the engine. My question, are there any freeze plugs in the engine on this tractor? I am mostly
curious, it has been getting real cold, anti freeze checks out good, but want to know if any are on this engine.
Thanks.

Bob · Mar 4, 2019

Your engine does not have "freeze plugs" in the conventional sense available to accept a block heater.

There's a port in the oilpan where an OIL HEATER can be installed, coolant heater option was a "tank heater" or "circulating heater".

The official DEERE kit installed the heater on a bracket near the generator, the bottom of the heater was feed from the block drain on the LH side of the engine by a hose that crossed over in the timing cover area, top/discharge port was plumbed to one of the ports on the RH side of the head now plugged with an internal hex-head plug, which is apparently what you already have.

Janicholson · Mar 4, 2019

This is not a flame, just truth. There are no freeze plugs in engines. The things called freeze plugs are welch plugs, or core plugs. They are used for the sole purpose of removing the sand based casting core material after the mold is filled when the engine block/head is made. The core material is fragmented and then removed by shaking and turning the casting in 3D space. Compressed air and washing are also used. They gained their name by being pushed out when engines with insufficient antifreeze actually freeze. They usually do not prevent casting damage. The grief with them is often that they rust out allowing leaks of coolant, or oil. Almost all sand casting that have internal passages (void spaces) have them. I am sure your JD does. Jim

Bob · Mar 4, 2019

(quoted from post at 14:03:28 03/04/19) This is not a flame, just truth. There are no freeze plugs in engines. The things called freeze plugs are welch plugs, or core plugs. They are used for the sole purpose of removing the sand based casting core material after the mold is filled when the engine block/head is made. The core material is fragmented and then removed by shaking and turning the casting in 3D space. Compressed air and washing are also used. They gained their name by being pushed out when engines with insufficient antifreeze actually freeze. They usually do not prevent casting damage. The grief with them is often that they rust out allowing leaks of coolant, or oil. Almost all sand casting that have internal passages (void spaces) have them. I am sure your JD does. Jim

"I am sure your JD does. "

NO, it doesn't! :shock:

It's a wet sleeve engine (so no enclosed coolant passages), and they managed to make the casting with no "core holes".

jdfamily · Mar 4, 2019

Thanks guys will take this information and take another look at it and see
what is going on. So dumb question. this is a water heater, not an oil heater?

Janicholson · Mar 4, 2019

Dang, Wrong again. Oh well I stand modified. Thanks. The welch Plug stuff still stands! Jim

Janicholson · Mar 4, 2019

External Engine block heaters are used to heat coolant by convection. This means the heated coolant is less dense than the cold coolant in the block. so the warm coolant flows upward (usually entering the cylinder head). The cold more dense coolant flows downward and enters the bottom of the heater through a hose attached (usually) to a block drain threaded hole. Jim

SVcummins · Mar 4, 2019

This is how mine is plumbed in

jdfamily · Mar 4, 2019

Interesting mine is on the other side of the block. Will get some pictures tomorrow.

3010 freeze plugs

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