Fixing hole in side of block

[dragfan66]

Looks like those 3 dots are off 1 tooth.

View attachment 137612

Good catch. Looks like the other side is lined up.

 

[Ktrim]

Do yourself a favor and get a cylinder hone for use on a drill. At least get some kind of cross hatch in those cylinders before installing pistons.

 

[fried1765]

Joe, is your operation taking place in a sand blasting area, desert, or what? I always see the sand in the background.

Pictures are apparently all taken in Joe's,.......... "clean room"!

 

[Hugo Habicht]

Hello Joe,

whatever you do, when you have the head on the engine do not turn it with the starter. Turn it by hand slowly. A valve is bent faster than you can say "upps".

And read and follow all the good advice from others here in the thread.

And yes, all that sand has in your pictures has me worried as well. I do not think I would assemble an engine in that environment.

Kind regards,
Hugo

 

[fried1765]

Hello Joe,

whatever you do, when you have the head on the engine do not turn it with the starter. Turn it by hand slowly. A valve is bent faster than you can "upps".

And read and follow all the good advice from others here in the thread.

And yes, all that sand has in your pictures has me worried as well. I do not think I would assemble an engine in that environment.

Kind regards,
Hagen

"I do not think I would assemble an engine in that environment"
Worry not,......
Joe,..... will figure it out!

 

[joesmith123]

Looks like those 3 dots are off 1 tooth.

View attachment 137612

Yes I am with you, this picture seems that way

When I was rotating them, they were perfect, all of them

One thing for sure, Joe's play by play documentary and photography are spot on.

Do you know how many times I went to take picture, and couldn't because the lens is covered in grease?

I have to put legitimate effort into: cleaning the lens before each picture

If you do this the way I am showing, then all pictures and narratives can be retraced for the rebuild, you'll know what is the next step knowing the step that you took for disassembly

I was not interested in doing any of this, but when I post clear shiny pictures of all the steel, and people comment, THEY make it interesting to me

Tons of solutions came from:

"I am annoyed by this, let me post pictures of it" (sometimes without even the original intention to fix it)

and somehow solutions are eventually discovered, kind people saying true statements that lead to it

Something about saying what I did is a reflection of progress so I do not lose hope, and saying that I will do X or Y forces me to "keep my word"

I always say what happened, then I say the "next goal"

Good catch. Looks like the other side is lined up.

I was very nervous about the gears matching, they definitely did match, I wish I would have taken an up close video, that picture is somewhat at an angle, making that gear appear off

Do yourself a favor and get a cylinder hone for use on a drill. At least get some kind of cross hatch in those cylinders before installing pistons.

There are such low hours on them, and I am tapped out of spending at the moment, but maybe

Pictures are apparently all taken in Joe's,.......... "clean room"!

All of your comments are my favorite, you and jax, are major assets to this thread/project, I cant tell you how valuable you have been for getting my questions answered (or maybe you do know how valuable)

And yes, all that sand has in your pictures has me worried as well. I do not think I would assemble an engine in that environment.

I fully agree with you that this environment is not ideal. But we are testing a theory,

The theory: "Can we rebuild an engine using nothing fancy, right there on the dirt floor, under the trees in the shade?"

Answer: maybe, only thing left is pistons and head

One detail bugging me: the paint is not matching the original kubota paint, do yall think I can get that paint in bulk for low cost and just hit with EXACT matching paint

I want to make it look factory for all the "dinosaurs" to have flashback of when they saw them NEW

Dont worry: 100% I will be doing the EXACT orange that Kubota used on that machine

When you see it, I want to to bring back memories that are 40 years old

I'll look into getting that blue/green that they use for the engine/frame, see if it is affordable

Took off tape, non polar solvent, on a rag, wipe excess paint

Use brush apply grease on surface, it hold gasket on, put on oil filter

Cannot proceed further without installing big governor spring,

Look at diagram with microscope, install big governor spring

Spring 150: Study their line, start at the swivel in lower left, then catches back of left arm, hook up into the swivel, and hook right into left "arm"...

ok i go try now

September 14, 2024

youtube.com

Put spring on, tested, gave it full throttle, both springs holding

Recycled the shim, scrub with diesel, put injection pump in place

Moved crankshaft with clamp, put body weight on injection pump, it sprung down, fasten hardware

There is not much else to do at this point but get the pistons ready and installed from other engine

Now: do a full cleanup of shop mostly clearing all walkways, put back all tools, get all the pistons on the table and decide what hardware they need, if any

And yes on the paint, i figure it out

Got all pistons and hardware from both engines on table, hit table with compressed air, raked shop floor, put all tools back

The only parts left to put on

 

[fried1765]

Yes I am with you, this picture seems that way

When I was rotating them, they were perfect, all of them



Do you know how many times I went to take picture, and couldn't because the lens is covered in grease?

I have to put legitimate effort into: cleaning the lens before each picture

If you do this the way I am showing, then all pictures and narratives can be retraced for the rebuild, you'll know what is the next step knowing the step that you took for disassembly

I was not interested in doing any of this, but when I post clear shiny pictures of all the steel, and people comment, THEY make it interesting to me

Tons of solutions came from:

"I am annoyed by this, let me post pictures of it" (sometimes without even the original intention to fix it)

and somehow solutions are eventually discovered, kind people saying true statements that lead to it

Something about saying what I did is a reflection of progress so I do not lose hope, and saying that I will do X or Y forces me to "keep my word"

I always say what happened, then I say the "next goal"



I was very nervous about the gears matching, they definitely did match, I wish I would have taken an up close video, that picture is somewhat at an angle, making that gear appear off



There are such low hours on them, and I am tapped out of spending at the moment, but maybe




All of your comments are my favorite, you and jax, are major assets to this thread/project, I cant tell you how valuable you have been for getting my questions answered (or maybe you do know how valuable)



I fully agree with you that this environment is not ideal. But we are testing a theory,

The theory: "Can we rebuild an engine using nothing fancy, right there on the dirt floor, under the trees in the shade?"

Answer: maybe, only thing left is pistons and head

One detail bugging me: the paint is not matching the original kubota paint, do yall think I can get that paint in bulk for low cost and just hit with EXACT matching paint

I want to make it look factory for all the "dinosaurs" to have flashback of when they saw them NEW

Dont worry: 100% I will be doing the EXACT orange that Kubota used on that machine

When you see it, I want to to bring back memories that are 40 years old

I'll look into getting that blue/green that they use for the engine/frame, see if it is affordable

View attachment 137639 View attachment 137640 View attachment 137641

Took off tape, non polar solvent, on a rag, wipe excess paint

Sure looks pretty, just the way it is!

 

[Russell King]

There are many threads on here about the paint with some offering alternatives that are close, cheaper and probably better paint.

But (on earth) you can get the paint from the Kubota dealer in larger quantities and in spray cans. But it is probably more expensive than the normal paint at hardware stores.

I believe this is the part number needed in the gallon can
70000-73358

 

[Ktrim]

There are many threads on here about the paint with some offering alternatives that are close, cheaper and probably better paint.

But (on earth) you can get the paint from the Kubota dealer in larger quantities and in spray cans. But it is probably more expensive than the normal paint at hardware stores.

I believe this is the part number needed in the gallon can
70000-73358
View attachment 137660

That's the grey. He's looking for blue.

 

[Ktrim]

Yes I am with you, this picture seems that way

When I was rotating them, they were perfect, all of them



Do you know how many times I went to take picture, and couldn't because the lens is covered in grease?

I have to put legitimate effort into: cleaning the lens before each picture

If you do this the way I am showing, then all pictures and narratives can be retraced for the rebuild, you'll know what is the next step knowing the step that you took for disassembly

I was not interested in doing any of this, but when I post clear shiny pictures of all the steel, and people comment, THEY make it interesting to me

Tons of solutions came from:

"I am annoyed by this, let me post pictures of it" (sometimes without even the original intention to fix it)

and somehow solutions are eventually discovered, kind people saying true statements that lead to it

Something about saying what I did is a reflection of progress so I do not lose hope, and saying that I will do X or Y forces me to "keep my word"

I always say what happened, then I say the "next goal"



I was very nervous about the gears matching, they definitely did match, I wish I would have taken an up close video, that picture is somewhat at an angle, making that gear appear off



There are such low hours on them, and I am tapped out of spending at the moment, but maybe




All of your comments are my favorite, you and jax, are major assets to this thread/project, I cant tell you how valuable you have been for getting my questions answered (or maybe you do know how valuable)



I fully agree with you that this environment is not ideal. But we are testing a theory,

The theory: "Can we rebuild an engine using nothing fancy, right there on the dirt floor, under the trees in the shade?"

Answer: maybe, only thing left is pistons and head

One detail bugging me: the paint is not matching the original kubota paint, do yall think I can get that paint in bulk for low cost and just hit with EXACT matching paint

I want to make it look factory for all the "dinosaurs" to have flashback of when they saw them NEW

Dont worry: 100% I will be doing the EXACT orange that Kubota used on that machine

When you see it, I want to to bring back memories that are 40 years old

I'll look into getting that blue/green that they use for the engine/frame, see if it is affordable

View attachment 137639 View attachment 137640 View attachment 137641

Took off tape, non polar solvent, on a rag, wipe excess paint

View attachment 137642

Use brush apply grease on surface, it hold gasket on, put on oil filter

View attachment 137643

Cannot proceed further without installing big governor spring,

Look at diagram with microscope, install big governor spring

View attachment 137644

Spring 150: Study their line, start at the swivel in lower left, then catches back of left arm, hook up into the swivel, and hook right into left "arm"...

ok i go try now

September 14, 2024

youtube.com

Put spring on, tested, gave it full throttle, both springs holding

View attachment 137657

Recycled the shim, scrub with diesel, put injection pump in place

View attachment 137658

Moved crankshaft with clamp, put body weight on injection pump, it sprung down, fasten hardware

There is not much else to do at this point but get the pistons ready and installed from other engine

Now: do a full cleanup of shop mostly clearing all walkways, put back all tools, get all the pistons on the table and decide what hardware they need, if any

The only possible holdup to putting pistons inside and closing up engine to do the first startup, I narrate:

I do have genuine piston bushings I want to install (some had gashes), I did damage to one chiseling into it, I do not have press

If we can DIY this without press, it would make zero holdup and we can do the engine test

My idea: sharpen chisel, cut into the bushing damage it off the connecting rod, hit connecting rod HARD with torch, put bushing flat on connecting rod, put on vice, crush into it FLATLY, finangle some DIY setup where we can move the show on the road...

someone come up with something or critique my idea

And yes on the paint, i figure it out

View attachment 137674

Got all pistons and hardware from both engines on table, hit table with compressed air, raked shop floor, put all tools back

View attachment 137675

The only parts left to put on

Those bushings have to be sized, reamed , to fit the wrist pins

 

[Hugo Habicht]

Hello Joe,

the way you fitted spring #140 in your post #512 looks plain wrong to me. This is based on how mechanical engineers mount a spring in a groove or hole typically but not on the sharp edge of the part. I do not have specific knowledge of this engine though.

Kind regards,
Hugo

 

[joesmith123]

Need a piston ring tool to get pistons into block

Connecting rod 3, thought it was bent but looks fine

going through with hand and diesel sanding 1000 grit, fully smoothing out connecting rod bearings

Applying bit of grease with finger on brand new connecting rod bearing

New piston hardware

Piston on vice to get new pin

Cannot get rings by hand, need squeezing tool

Tried these but just ended up cutting my hand from all the sharp objects on top of engine

This is the paint on the way, got one gallon to do both tractors entire chassis and engines, it should match good enough

Harbor freight: got piston ring tool for $11, got other things i can use to squeeze stuff, and got gasket maker for little details, and got big c clamp to increase likelihood of solving issues

Up close of the bell housing non painted, hopefully the paint matches but not a biggie

 

[Henro]

Joe, since you like to make do with what you have, I wonder if you could use a hose clamp rather than the proper tool to get the rings compressed into the piston so you can insert the piston?

You might have to use multiple hose clamps, but it might work…

 

[Russell King]

That's the grey. He's looking for blue.

Sorry about that @joesmith123

try to find the part number here

Kubota GENUINE PAINT Parts Diagrams

Kubota Parts Catalog Lookup. Buy Kubota Parts Online & Save!

www.messicks.com

 

[Lil Foot]

Sanding bearings? Piston in hard jaws in vise? hmmmm.....

 

[fried1765]

Sanding bearings? Piston in hard jaws in vise? hmmmm.....

Not to worry:... Joe is figuring it out!

 

[Ktrim]

Lubriplate engine assembly lube.
Need ring compressor. Hose clamps will not allow piston to slide out therefor damaging rings.

 

[MountainMeadows]

Joe, I would not recommend re-using the old bearings otherwise your good block might get a hole knocked in the side of it.

You need to get new bearings and check the clearance with Plastigage to make sure they are within specs.

 

[chim]

Sanding bearings? Piston in hard jaws in vise? hmmmm.....

You never know how things will go if you don't have all the right tools at hand. Back when some of the guys here were either not born or were still pooping yellow (1992) I had an experience that I can somewhat relate to this thread. There's a whole long story about how a German from Texas driving on the ice in Pennsylvania lost control of a rental box truck towing another car totaled my 2YO company Chevy 4X4. Our Purchasing VP found another truck that almost matched mine EXCEPT it didn't have a few things mine had, the biggest was A/C. He said I could transplant anything from one to the other, so challenge accepted.

Early one Saturday morning I drove the replacement truck to its recently-deceased brother. The wrecked truck had a great factory sound system with graphic equalizer, etc that were the first to be removed. Then I went to work on the A/C. Stripped everything but the dash controls for the HVAC. After taping the open ends of the removed components I brought everything home and hosed the coils thoroughly. Installation was straight-forward. There was one connection that somehow lost its O-ring. No problem, had an assortment from a faucet replacement. There were dimples in the firewall indicating where the three screws went for the accumulator. I think the compressor replaced an idler pulley and it may have even used the same serpentine belt. Biggest challenge was getting the evaporator coil installed under the dash. There may still be one or two screws missing on the back side.

The existing (heating only switch) controlled fan speed and the levers to select where the air went were fine as well. I tastefully (IMHO) added a rocker switch on the dash connected in series with the LP cutoff switch. When it was all buttoned up I dumped cans of R12 till things started to sweat. Finished the job with daylight to spare. It still worked fine when I got a new replacement in 2000.

I bring this up because there was no vacuum pump, gages or any of the "real" tools used for the operation. I have done A/C work since then using all the proper tools and following instructions to a "T". All went well. That includes replacing a compressor on another Chevy, expansion valve on the L4240 and various recharges of vehicles and whole-house units.

 

[joesmith123]

Put piston 1 in engine

Up close on brand new bearing, look how dark it come out, my suspicion they cook them in oven at the end of their process

Assortment of pictures:

put piston with serial facing injection pump, tighten ring tool, smack piston with wood into block, go under block, line piston with crankshaft, go back up smack further down, bring all the way to crank, hand tighten hardware

Cleaning setup: I have non polar solvent in a pot close by, dip hand in to keep oil and dirt off hands and parts

Now: read instruction on foot pound torque wrench

Rod bolt torque: 30 foot pound

30 ft pound torque, bent keepers inward

Piston 3: it's in good shape, clean it and reassemble

Greatest setup for ridding crud around rings: 1000 grit sand paper, dip in diesel, do all ring area, hit with compressed air