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#1 farmerall OFFLINE  

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Posted January 09, 2014 - 10:22 PM

I have some parts that I saved from a TRA10D engine that I got on a parts Bolens 1050. I never heard this engine run but all of the parts look tike they are still useable or will cleanup ok. I have a crank, rod and piston, camshaft, governor and flywheel. The crank has some marks on the rod journal but nothing bad if I remember right.

 

100_2029_zpsff295888.jpg



#2 Nato77 OFFLINE  

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Posted January 10, 2014 - 04:14 AM

Is it a std size piston or oversized?

#3 farmerall OFFLINE  

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Posted January 10, 2014 - 09:39 AM

Is it a std size piston or oversized?

 

I think it's a std size but I will check to make sure.


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#4 farmerall OFFLINE  

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Posted January 14, 2014 - 04:18 PM

Is it a std size piston or oversized?

 

My brother checked for me today and he said that 1/2 is stamped into the top of the piston. I have no clue what that number means though, I'm used to seeing std, .10 .20 ect.



#5 Bolens 1000 OFFLINE  

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Posted January 14, 2014 - 04:27 PM

My brother checked for me today and he said that 1/2 is stamped into the top of the piston. I have no clue what that number means though, I'm used to seeing std, .10 .20 ect.

 

Those are Bored 1/2 over  (.05)

Instead of throwing out defective blocks the factory would bore them slightly oversize and install a special Size piston and rings.



#6 Bruce Dorsi OFFLINE  

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Posted January 14, 2014 - 05:55 PM

Guys!   :mad2:

 

....Get your decimals in the right place! :poke:

 

There's a huge difference between .10" and .010"   :wallbanging:

 

The 1/2 marking would represent .005" not .050"

 

.10 = 1/10    .010 = 10/1000 or 1/100  :thumbs: 


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#7 Nato77 OFFLINE  

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Posted January 14, 2014 - 08:35 PM

So what size rings would you use? .010 and file them down to fit?

#8 Bolens 1000 OFFLINE  

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Posted January 14, 2014 - 11:25 PM

So what size rings would you use? .010 and file them down to fit?

 

Yes, .010 Would be your only Choice

I had to do that on the engine in my EK10.

I didnt have to file mine as the ring gap was within specs.

 

 

I dont think the 1/2 over sizes were ever stocked by any dealers......


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#9 farmerall OFFLINE  

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Posted January 14, 2014 - 11:40 PM

 

I dont think the 1/2 over sizes were ever stocked by any dealers......

 

Do you think it being 1/2 over add any value to the piston or most likely it would be a cool conversation piece?



#10 Bolens 1000 OFFLINE  

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Posted January 15, 2014 - 10:59 AM

Do you think it being 1/2 over add any value to the piston or most likely it would be a cool conversation piece?

 

If you think they are "Rare" they are not...... Likely thousands were sent out of the factory like that.

To me its just another Ordinary Engine



#11 wilberj ONLINE  

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Posted January 15, 2014 - 04:22 PM

Do you think it being 1/2 over add any value to the piston or most likely it would be a cool conversation piece?

 

 

Your talking .005 here thats .0025 per side nothing realy. 



#12 Titus OFFLINE  

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Posted January 17, 2014 - 06:37 PM

Do you have the carb and gov springs?



#13 farmerall OFFLINE  

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Posted January 17, 2014 - 07:09 PM

Do you have the carb and gov springs?

 

I may have a carb, I'll have to look. I don't have any of the governor springs.







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