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HT20D Cold start kit


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#1 OldBuzzard ONLINE  

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Posted February 17, 2016 - 12:51 PM

Just out of curiosity since it's being talked about in another thread and I don't want to hijack it.

 

Can any one tell me how this kit works?

 

Is it meant to be plugged in for an extended period of time to keep the engine warm or does it heat immediately to send hot air to the engine for easier starting?


Edited by OldBuzzard, February 17, 2016 - 12:52 PM.

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#2 Cat385B OFFLINE  

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Posted February 17, 2016 - 01:19 PM

Can you throw that picture up again?

#3 WrenchinOnIt OFFLINE  

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Posted February 17, 2016 - 01:41 PM

Just out of curiosity since it's being talked about in another thread and I don't want to hijack it.
 
Can any one tell me how this kit works?
 
Is it meant to be plugged in for an extended period of time to keep the engine warm or does it heat immediately to send hot air to the engine for easier starting?


Dave if it's the one LP Bolens is referencing its simply a heating element that heats up the heads,it's shrouded to hold the heat in ,it gets plenty hot and without any type of thermostat or cut out I don't leave my plugged in for an extended period. I wish I'd of seen Todd's kit if it was on Ebay, would of been a cool upgrade.
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#4 ClassicBolens OFFLINE  

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Posted February 17, 2016 - 01:43 PM

The cold start kit uses a manual fuel primer that pumps a small amount of diesel fuel into the thermostart, which is mounted into the intake. The thermostart heats up by engaging the switch, thus igniting that small amount of diesel fuel. This helps to ignite the fuel in the cylinders as the engine is cranking over. It is intended to be used temporarily for starting the engine only, which is why Bolens used a push button switch to heat the coil in the thermostart plug.

 

I found this video on Youtube of an HT20D that has a homemade cold start kit installed.

 https://www.youtube.com/watch?v=4QaMTbJ8PFc

 

There are several other videos regarding thermostart systems there. 


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#5 OldBuzzard ONLINE  

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Posted February 17, 2016 - 02:32 PM

This is the critter I'm talking about:

s-l500.jpg

 

If that isn't the cold start kit, then what would it be called, and why isn't it listed in the attachment interchange lists?


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#6 1967bolens collector OFFLINE  

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Posted February 17, 2016 - 02:40 PM

It's a heat element like a oven an it gets hot an heats the heads an inside the cylinders an all u have to plug it in an wait about 45 mins to an hour depending on how cold but they get hot fast
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#7 LPBolens ONLINE  

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Posted February 17, 2016 - 02:42 PM

OB, that is not the Bolens Cold Start Kit. I have one of those heaters that goes into the engine shroud. I have no idea if they were something that Wisconsin or Ducati cooked up, but like WrenchinOnIt, I don't leave it plugged in very long because it does get HOT. Basically, that one is heating up the heads to allow easier starting. And I have never seen a Bolens part number for one.
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#8 WrenchinOnIt OFFLINE  

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Posted February 17, 2016 - 03:16 PM

This is the critter I'm talking about:

 
If that isn't the cold start kit, then what would it be called, and why isn't it listed in the attachment interchange lists?

Good question because it's not mentioned in any of the manuals that came with mine


OB, that is not the Bolens Cold Start Kit. I have one of those heaters that goes into the engine shroud. I have no idea if they were something that Wisconsin or Ducati cooked up, but like WrenchinOnIt, I don't leave it plugged in very long because it does get HOT. Basically, that one is heating up the heads to allow easier starting. And I have never seen a Bolens part number for one.

I'm leaning towards a Bolens add on

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#9 Rainier OFFLINE  

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Posted February 17, 2016 - 04:55 PM

That looks like the ones they use to make to start you barbecue with.
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#10 LPBolens ONLINE  

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Posted February 17, 2016 - 05:44 PM

Good question because it's not mentioned in any of the manuals that came with mine


I'm leaning towards a Bolens add on


It is entirely possible that it is a Bolens add-on. We may never know though. I have the HT20D Operator's Manual, both the Parts and Operator's Manuals for the Wisconsin WD2-860, and the Workshop Manual for the Ducati 2 IS 22 engine (which is the engine that Wisconsin re-badged). None of those sources mention or show the heater unit in the air shroud around the heads. The Bolens OM does mention the Cold Start Kit, but we know that they were referring to the thermostart.
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#11 wilberj ONLINE  

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Posted February 17, 2016 - 05:50 PM

Sure tease the guy who don't have a HT20D yet! 


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#12 Cat385B OFFLINE  

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Posted February 17, 2016 - 07:28 PM

I hope that is spaced evenly between the cylinders, that is not a Detroit in there.



#13 chieffan ONLINE  

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Posted February 17, 2016 - 08:26 PM

Just use a forced air type heater and warm the whole engine and transaxle at the same time.  Takes about 1/2 hour with a 175Kbtu heater.  Works great on hydro's.  Keep it at least 4' away from the tractor though as it does get hot.



#14 LPBolens ONLINE  

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Posted February 17, 2016 - 08:27 PM

Sure tease the guy who don't have a HT20D yet!

That was the plan, Jerome!

#15 wilberj ONLINE  

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Posted February 17, 2016 - 09:02 PM

That was the plan, Jerome!

:rolling:


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