Builds The '93 Troopy Hodgepodge

[SNLC]

So Tony’s original block is a factory 222222 on all cylinders. It’s just about gone off the top of the block but it’s still there.

If you know what you are looking at here you will see there is some wear on the bores but they have worn extremely close to perfect. Meaning worn evenly top to bottom. To me this indicates good maintenance on this engine during it’s previous life. They are also well within spec.

Cheers

 

[SNLC]

Also spent time today getting the top of the block cleaned up.

Cheers

 

[SNLC]

Treating the FTE block with some SEM Rust Mort, a phosphorus acid based treatment.

Untreated side

Treated side after washing

I might have to do another treatment on this side, you can still see some heavy rust in a few places.

Cheers

 

[Dirty Koala]

Why is it that the untreated side looks cleaner than the treated side? Are the pics just in the wrong order?

 

[SNLC]

No idea why it looks that way to you. Sure doesn’t look that way standing next to it.

Here it is all treated, might hit a few areas again with the needle scaler, should be painted tomorrow.

Cheers

 

[SNLC]

These pics I already posted in the thread but here they are again for a reference on what we started with before cleaning on this FTE.

Cheers

 

[TonyP]

Huge, black, blocks... my favorite

Swinging by ID in between me leaving Korea and heading to Italy in a few weeks.
Stoked to see the money pit again, turn a wrench, hit things with a hammer, ect...

 

[SNLC]

Right before painting

Two coats down, one more light coat and I will pull the tape.

Cheers

 

[SNLC]

And there it is, done with this part.

Cheers

 

[SNLC]

Pistons are out for vapor honing.

Cheers

 

[cahill]

Can you enlighten the less knowledgeable (me) what the significance of a factory 222222 on all cylinders is? Related to bore size?

 

[SNLC]

Can you enlighten the less knowledgeable (me) what the significance of a factory 222222 on all cylinders is? Related to bore size?

Yes its related to factory bore, pistons, ect.

Manufacturing these engine there was variance, ie mark 1, 2 or 3. Same with head gaskets, Mark (dot) 1-5.

Cheers

 

[SNLC]

Vapor honed pistons

Cheers

 

[Honger]

Vapor honed pistons

View attachment 2723650View attachment 2723651View attachment 2723652View attachment 2723653


Cheers

This is super cool... and looks beautiful!
What's the mechanical advantage to doing this? Reduced friction during stroke within the cylinder?

 

[SNLC]

This is super cool... and looks beautiful!
What's the mechanical advantage to doing this? Reduced friction during stroke within the cylinder?

No mechanical advantage, strictly to clean them up. Impossible to get them this clean any other way. A block and a half from my shop is a guy who can vapor hone so it is extremely convenient to use him. I dropped off some a/c parts from another project this morning to have him vapor hone.

Cheers

 

[Owyhee Jackass]

Had to google it...https://vaporhoningtechnologies.com/what-exactly-is-vapor-honing-5-things-you-should-know/

media blasting with a pressurized slurry.

 

[TonyP]

Had to google it...https://vaporhoningtechnologies.com/what-exactly-is-vapor-honing-5-things-you-should-know/

media blasting with a pressurized slurry.

Sort of. It's non-abrasive and polishes the part within damaging the surface. Pretty cool stuff.

 

[SNLC]

So we got through checking the rest of Tony’s bottom end this morning.

Everything is within spec. The compression rings are the only rings showing any wear. We could re-use these rings. We have opted for new standard rings though. Piston skirts and wrist pins/bearings are all within spec and we are going to run them. Most of it is on the low end of the specs it’s not on the high end so it is good for another 250,000kms, most all is showing 20-30% wear or less. A bit more here and there like on rings but seriously we have no idea on past maintenance-history so I feel this is a win. And that is truly amazing in my opinion to get a 250,000kms 20+yr old used engine from half way around the world with zero history on it and come out this good. I feel confident saying that after going through the full process. We also felt it should be done, Tony knows now with confidence he has a solid bottom end and we didn’t have to throw a lot of new parts at it which means a lower end cost.

Cheers

 

[SNLC]

Also, I only have posted the max in some of our notes. Everything has a max tolerance as per the FSM, when you reach that number you need to look at reboring the block and upsizing pistons/rings. Toyota built these engines with three rebuilds in mind for the life of the engine. This is it’s first, perhaps it’s next is a hone and upsizing a few components and it’s last is a bore and upsizing it all.

When it comes to max specs before bore and upsize, worst wear on this bottom end is 60%, best is in the 10% range. Tony did well in my opinion for a gamble.

Cheers

 

[TonyP]

I think we have just about everything in-shop or being shipped to finish up the FTE re-assembly.

Dropped a deposit to our guy in Australia for the H152, wiring, ecu, ect.
So that's on track also.

All I need is Ethereum and Cardano prices to explode and this thing will be rockin'