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WHX??

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WHX??

What's wrong with this pic. 

20240210_105158.jpg

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ol550

Picture looks fine to me.  Dipper doesn't though.

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WHX??

Nope ... dipper is fine just the camera angle. Look again.

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rmaynard

If my eyes don't deceive me, the oil hole on the cap is facing the wrong way.

 

cap.jpg.84891e1014c0629e222f2b3e196ebbc8.jpg

 

 

Edited by rmaynard
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pfrederi

:text-yeahthat:

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squonk

Looks like the earl hole! 

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WHX??

Give Bob a cigar... now for the million dollar question.

The bore is within specs so a std re-ring. Minor scuffing on the piston. Crank looks good. 

Would you on reassembly...

A. Flip the piston & rod around.

B. Pull the wrist pin and just flip the rod around.

C. Replace the rod. 

Edited by WHX??
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ri702bill

OK - much like the adult undergarments, it "Depends"...:laughing-rolling:

 

Sounds like you are pulling the piston / rod assembly out anyway to re-ring it. The piston is flat topped anyway, so that MAY not matter how it goes back in.

That gives you a better look at the bore and the crank journal. Myself, I would reassembly just the rod and cap in the desired orientation, but using Plastigage across the journal, Torque the rod bolts and pull it back apart.IF the squished gage shows a problem, either a taper or oversized (not enough squeeze) it's time to address that. Possible turning the crank undersize and a new connecting rod. 

The oil hole is there to lube the cam - how does that look??

 

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squonk

Flip the rod and piston together

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rmaynard

You Wisconsin boys are always looking for the easy way out. Pull the piston and do a ball-hone to get a nice cross hatch, and replace the rings. As Bill said, Plastigage the crank journal. No sense in doing the rings and such if you're not going to check the other stuff.

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ri702bill
1 hour ago, rmaynard said:

You Wisconsin boys are always looking for the easy way out. Pull the piston and do a ball-hone to get a nice cross hatch, and replace the rings. As Bill said, Plastigage the crank journal. No sense in doing the rings and such if you're not going to check the other stuff.

I like to think of it as "There's only one letter difference between "Hero" and "Zero"." Do it right, or do it over, as @peter lena would say.....

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rmaynard
3 minutes ago, ri702bill said:

...Do it right, or do it over...

I'll add to that from my signature above
"If you don't have time to do it right, when will you have time to do it over?"

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WHX??

All good answers ...shouda got a box of them cigars. 

How about given this. 

20240210_141828.jpg

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WHX??
1 hour ago, rmaynard said:

You Wisconsin boys are always looking for the easy way out.

Geez  you didn't say that when you was suckin down our apple cobbler...:ychain:

IMG_6556_JPG_bbbf293f96a099afd7b9c606176b70d6.jpg

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ri702bill
8 minutes ago, WHX?? said:

All good answers ...shouda got a box of them cigars. 

How about given this. 

20240210_141828.jpg

Not great, seen worse! Do the Plastigage thing, the results do not lie. It MAY be tight in the middle???

Any OMG rod ka-knockin' sounds when it was running??

 

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squonk

Lots of dirt in that engine. Could be from grit.

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ri702bill

"True Grit" was a great movie - the remake wasn't bad either. Grit plus Kohler - not good - gets poor revievs.  :(

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Sailman

@WHX?? thanks for the thread. I am ready to pull the oil pan off my K-161 and this thread helps me know what to look for (rookie here). What does the scoring on the rod caps indicate? Poor oil flow?? Would they need to be replaced?

Please keep posting here as I will be following your procedures on my first attempt at this. :handgestures-fingerscrossed:

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WHX??
54 minutes ago, ri702bill said:

"True Grit" was a great movie - the remake wasn't bad either. Grit plus Kohler - not good - gets poor revievs.  :(

Oh Balls ... now there's a treasure trove of knowledge right there. :lol:

 

4 hours ago, rmaynard said:

not going to check the other stuff.

Now what makes you jokers think we don't ? Lest you forget these were made in cheese land... 'sides this ain't exactly my first rodeo!

 

2 hours ago, ri702bill said:

Any OMG rod ka-knockin' sounds when it was running??

Never heard it run but was told ran when parked 40 years ago. :huh:

 

2 hours ago, squonk said:

Lots of dirt in that engine

No more than usual but certainly not enough tar oil in it. 

 

Perplexing part is my big end crank measures 1.855 spec max 1.850

but the after market part number on the rod suggests a 10 under rod. 

Possible my eyeball yardstick is off but off tomorrow to my official scorer.  Going to get a new rod regardless. "Sides these :occasion-clown:s would be on my @$$ like a dirty DEPENDS. I don't do it right. 

 

29 minutes ago, Sailman said:

. What does the scoring on the rod caps indicate?

My pleasure Sailman.

I think it was because the rod was installed backwards and poor oil changes. 

The hole in the rod must face the camshaft. Also there are what are called match marks on the rod and cap. They must always be together and face the bearing plate.That puts the hole towards the crank. 

Pics in abit. 

20240210_142013.jpg

20240210_173019.jpg

Edited by WHX??
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WHX??
43 minutes ago, Sailman said:

I am ready to pull the oil pan off my K-161 

What I would suggest is pop the head off first. If I recollect right you suspect a broken rod? If that is indeed the case the piston can then  come out the top end. Yes start a thread and follow disassembling in the manual to the letter. Take plenty of pics. 

 

Edited by WHX??
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ri702bill
36 minutes ago, WHX?? said:

like a dirty DEPENDS

I get it!!! :laughing-rofl:

If the rod is already .010 under - that's as good as it gets...... check the clearance with Plastigage. It does not lie, and may tell you more than you want to know......

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WHX??
8 minutes ago, ri702bill said:

check the clearance with Plastigage.

I don't use plastigage... I use tooth picks. After they flatten out nice I send them to @wallfish and he makes RJs out of them. :D

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ri702bill

Been using Plastigage since 1973 when I was in Auto Shop Trade School. You can reuse it as dental floss !!! :laughing-rolling:

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953 nut
57 minutes ago, WHX?? said:

think it was because the rod was installed backwards

:text-yeahthat:

Somethin about running an engine without oil gettin to the crank makes them do bad things. Glad you caught it in time.

Edited by 953 nut
fat finger
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WHX??
3 minutes ago, 953 nut said:

Glad you caught it in time.

Yes thank you Richard. Was a wreck of a tractor that it came off of. I gave the carcass to the Iowa boys. No way was I going to put fire in the hole without a complete inspection. Sides there was no float or bowl.on the carb. :)

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