Removing Plug to Install a Block Heater - Need some ideas

[clemsonfor]

Most of these Grey Market Yanmar Tractors do not have glow plugs, but a thermo-start plug. Yeah it can be considered a glow plug but it works differently. I believe on Scottys 2020 he only has 1 thermo-start plug, he wont have a plug for each cylinder like most modern diesels do. So his thermo-start could be bad, but having a warm block will always make starting his tractor easier even if his thermo-start did work, and this applies to gas engines too. Cold weather makes any engine more difficult to start.

I was working and typing at the same time, didn't realize all you other guys beat me to this. LOL

Also it makes that oil warm, which lubricates better than oil that is 20F or whatever the outside temp is at that time and this with the warmer block lessens start up wear.

 

[Jtullis13]

LOL I did the same thing Clemsonfor. I was typing my response and before I was finished a couple of other guys who type faster than me beat me to it! LOL and yes the heaters do make the oil warm and much better oil flow too which is a plus!

 

[Scotty Dive]

Now what???

 

[blacklion66]

crank off? wish you folks would use plain old English

I've started diesel and gas engines at -30 to 60 (Fairbanks)

for serious block heaters are worthless, either electric or propane circulating water heaters are required along with electric battery blankets. I have used the exhaust of one engine to keep the other warm.(heavy canvas tarps are great for trapping heat?

as a side note -30 and colder strange this begin to happen, wheel bearing grease becomes hard, hydraulic fluid is about as thick as 30 weight, clutches are burnt out because of 90 or 80 weight in the transmissions or differentials
pure antifreeze turns to slush, metal will snap like glass. Plastic? ☺☺ touch it and it will self destruct

 

[ray66v]

as a side note -30 and colder strange this begin to happen, wheel bearing grease becomes hard, hydraulic fluid is about as thick as 30 weight, clutches are burnt out because of 90 or 80 weight in the transmissions or differentials
pure antifreeze turns to slush, metal will snap like glass. Plastic? ☺☺ touch it and it will self destruct

Technically, most hydraulic, and transmission fluid is as thick as 30w motor oil, at room temperature, (Kubota SUDT being the exception, which is 20w).

Most 80-90w gear oil is about the same viscosity as 30w motor oil, and hydraulic transmission oil, at room temp. This is because gear oil, and motor oil are NOT measured using the same scale.

I get what you are saying though.

At -30F, synthetics are a good idea.

 

[Trillium Farm]

I've started diesel and gas engines at -30 to 60 (Fairbanks) For serious block heaters are worthless, either electric or propane circulating water heaters are required along with electric battery blankets. I have used the exhaust of one engine to keep the other warm.(heavy canvas tarps are great for trapping heat?

Yes, one must use whatever is appropriate for the climate! I've always maintained that inline electric heaters, battery blankets and (if not kept under cover) tarps are a necessity in real cold weather.

 

[winston1]

Now what???View attachment 582235

What tool did you use that rounded it? Asking so we might know next size down. Am I right in assuming you have a pretty open work area there?

 

[Jtullis13]

Now what???View attachment 582235

Along with Winston, need to know what you used to get it to this point to figure out what to use next. Honestly I still think you need to use a torch to heat the plug and surrounding area of the block, then you can put a pair of square vice grips on it and turn it out.

 

[ray66v]

Along with Winston, need to know what you used to get it to this point to figure out what to use next. Honestly I still think you need to use a torch to heat the plug and surrounding area of the block, then you can put a pair of square vice grips on it and turn it out.

You don't want to heat the plug, just the block. You want the block to expand, but not the plug.

But, I agree it's not coming out without heat.

 

[Scotty Dive]

I used the square end of a 3/4 drive socket adaptor. It fit pretty snug but not snug enough. honestly, it was rounded a bit from prior attempts. I have a clean shot at the plug, but would need to remove the starter to get a file in there to flatten the sides a bit. I was thinking then welding together a homemade square socket using bar stock and then welding it to a 3/4 drive extension. I agree, I do need to get the block very hot around the plug before this guy is going to budge. Without knowing if this is a solid plug or something weaker I am concerned about ripping a hole in it and then be in a world of hurt or worse yet damaging the block itself. Always looking for additional suggestions!