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WH_Hobie

k-161 gets put back together

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WH_Hobie

dad is letting me put together one of his k-161's that needed rings. i have all the parts and i am going to hopefully start today on getting it back together. it is going to go on my 702 even though the engine is only recoil start. i will get a lot of help from dad so dad here is a special B)

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kpinnc

Post ALOT of pics Nick!

That way I can get the two I bought from him done too! B)

Kevin

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TT

He'll have to be sure he gets the pictures while it's being assembled...... 'cause once I get those small blocks together, they're usually faster than a camera. B) :whistle:

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kpinnc

'cause once I get those small blocks together, they're usually faster than a camera.

Pretty sure I've seen an example of that somewhere TT! B)

Kevin

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TT

A little bit of progress was made on the K-161 today. B)

There are quite a few pictures, but there are a lot of missing ones too. (dirty hands and cameras aren't the best combination.)

Since I have parts and pieces laying around all over the place, some of the time was spent sorting through them and finding the best (and correct) ones for reassembly. Cleaning all the parts wipes out a lot of time too, so I feel we made good progress for the 4 or 5 hours spent on the job.

3 stone glaze breaker hone and some Liquid Wrench "cutting oil" at work:

K-161Hobie006.jpg

Scuffed cylinder ready for cleaning:

K-161Hobie004.jpg

Hobie scrubbing the block:

K-161Hobie009.jpg

Cleaned, dried, and ready for reassembly (cam was not removed):

K-161Hobie011.jpg

Timing marks aligned? -- "check" :whistle: :

K-161Hobie015.jpg

Drawing up the bearing plate:

K-161Hobie017.jpg

Flywheel-side seal installed:

K-161Hobie019.jpg

PTO-side seal installed:

K-161Hobie018.jpg

Checking the ring end gap:

K-161Hobie022.jpg

Piston and rod assembly installed and cap bolts torqued (locks not bent yet):

K-161Hobie026.jpg

Lapping the valves:

K-161Hobie027.jpg

Using white grease to hold the locks to the valve stem for easier installation:

K-161Hobie030.jpg

Valves done and reinstalled:

K-161Hobie031.jpg

Showing correct orientation of inner breather plate:

K-161Hobie032.jpg

Carb, magneto, and cylinder head installed:

K-161Hobie034.jpg

We have some more work ahead of us, but the biggest part is done. I need to fix the blower housing mounting holes and find a few more parts, but it won't be long now! :horseplay:

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nylyon

Great pictorial, and update, thanks B)

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kpinnc

Awesome step by step! B)

Thanks TT and Nick!

Kevin

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nylyon

Oh, and Nick, I'm sure you already know this but pay close attention to the guy helping you, he's among the best there is, you've got a first rate teacher (even if he does yell at ya B) )

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WH_Hobie

Well he don't yell a lot unless it is my fault. I'm just happy my dad got me an engine ready for NAMA B)

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Curmudgeon

Well he don't yell a lot unless it is my fault. I'm just happy my dad got me an engine ready for NAMA :banghead:

NICK!!! What you done that dad doesn't know about yet? That was some serious sucking up there!!!!!!!!!!!!!!!!!!!!!!!!!! B):whistle:B)B) B)

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WH_Hobie

nothing he just has to get me to penns cave so I can pull my 702

:banana:

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Curmudgeon

Yeah, sure...................... B):whistle: B)

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TT

Dad has an extensive network of ears and eyes set up all over the area. B)

I'm pretty sure Nick knows that too -- 'cause more than a few things have "backfired on him" in the past. :whistle:

I believe he's getting back on the right track again, but he still has a few years 'til he gets to be the engineer of the train. B)

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TT

Just as a follow up to the progress on this engine, the fuel pump and air cleaner have been installed, but since I upgraded this engine to the newer style magneto, I either need to fix the blower housing mounting holes, or find a replacement.

The old style magnetos with the magnet rotor mounted directly to the crankshaft (under the flywheel) use a slightly smaller bearing plate, flywheel, and blower housing.

I plan on welding up the blower housing soon, so with a little fuel and a lot of luck, we should have "fire in the hole" by the end of this week! B)

Stay tuned............ :horseplay:

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MaineDad

Great pics and instructions. I'm bookmarking this thread for the day I rebuild my old K181 sitting on the work bench.

Thanks for sharing Nick...

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