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Dozers and Crawlers Holt, Caterpillar, Cletrac, etc.

Dozers and Crawlers

Cletrac 20C, the restoration begins


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  #31  
Old 12-09-2014, 09:03:18 PM
bigGURN bigGURN is offline
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Default Re: Cletrac 20C, the restoration begins

Once its running, your welcome to come take it fir a drive anytime!
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  #32  
Old 12-21-2014, 06:26:01 PM
bigGURN bigGURN is offline
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Default Re: Cletrac 20C, the restoration begins

Still waiting for the engine to get back from the machinist... I figure while waiting I would at least order the rest of the gaskets:



Now if I could only get the block back and start to assemble the thing...
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  #33  
Old 01-06-2015, 01:45:10 AM
bigGURN bigGURN is offline
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Angry Re: Cletrac 20C, the restoration begins

Well still no engine not very pleased with the machine shop right now... on the upside, my wife (with Lauren's help) gave me the components for a unique lamp for Christmas and at least I was able to complete something cletrac related!
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  #34  
Old 01-06-2015, 10:51:04 PM
Brasherman Brasherman is offline
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Default Re: Cletrac 20C, the restoration begins

That's usually how it goes with machine shops. Hope it gets home soon!
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  #35  
Old 02-10-2015, 09:33:09 PM
bigGURN bigGURN is offline
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Default Re: Cletrac 20C, the restoration begins

Well the machinist finally (after four months, two more than promised) has the sleeves in as well as the new intake valves... he called today because some how I ended up with 8 new intake valves and no exhaust valves. Three of the original exhaust valves look ok, one looks like it might have a bent stem... its high in the stem near the valve head and may just be an optical illusion from the carbon. Tomorrow morning first thing I'm going to run the old exhaust valves over and we'll clean them up and see what we have... with work wrapping up on the Fairbanks Morse Take-A-Part next week, I had hoped to finally start reassembly on the OOC Hercules engine for this Crawler next weekend, but if I have to order intake valves it may be another week or two either way, with luck it'll be churning its way through the dirt by then end of spring (I hope! )
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  #36  
Old 02-11-2015, 08:25:31 PM
bigGURN bigGURN is offline
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Default Re: Cletrac 20C, the restoration begins

Went to the machine shop today. The sleeves are in (and look great) and the replacement valve seats are installed. I ordered a set of exhaust valves from Zimmerman Oliver-Cletrac. The machinist promised the engine the same day the valves are delivered... so some time next week I should have a Hercules OOC in my possession to start reassembly.
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  #37  
Old 02-14-2015, 09:50:20 PM
bigGURN bigGURN is offline
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Default Re: Cletrac 20C, the restoration begins

Valves! The exhaust valves for the OOC arrived today, they'll go to the machine shop Monday... should have an engine block by Tuesday.



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  #38  
Old 02-16-2015, 12:54:12 AM
Brasherman Brasherman is offline
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Default Re: Cletrac 20C, the restoration begins

Woo! Looks like genuine NOS!
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  #39  
Old 02-17-2015, 08:23:02 PM
bigGURN bigGURN is offline
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Default Re: Cletrac 20C, the restoration begins

Quote:
Originally Posted by Brasherman View Post
Woo! Looks like genuine NOS!
Yep, real live NOS parts. Thank you Landis Zimmerman.

I finally have the block back for the 20C! Sleeves look great, valves seat nice and tight. Just need to get the pistons cleaned up and start assembly!




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  #40  
Old 03-17-2015, 12:14:32 AM
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Default Re: Cletrac 20C, the restoration begins

While I continue to wait now (for a replacement piston and rings) I decided the start a little more work on the engine.
I placed the crank shaft and even ran safety wire though all of the bolts:


Since the crank was in, I decided to add the camshaft gear, nice and easy to get it times with the easily visible stamps!




With that done, I decided to tackle a few of the "accessories"...
The oil filter assembly revealed this:


The water pump was even more disheartening... all the blades off the impeller are broken, many MIA:


The shaft is also badly worn:
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