Just a little more . . . . .

How to make it go fast

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Re: Just a little more . . . . .

Postby BC847 » Fri Mar 06, 2020 12:25 pm

Finally found a somewhat local machine shop experienced specifically with a 12v. As they pretty-much are the only in the 'hood, there's an expected three to four week turn-around time. Take a number . . . . :?

Got to sit down with the block and have a prayer meeting. Lay hands on it and see what pistons and bearings (if any) are needed. Got the head on the bench. Need to remove the valves and see how they, the guides and seats are.

Screw it. Let's go to the beach.
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby PToombs » Sun Mar 08, 2020 2:03 pm

It is getting towards the beach time of year! Good choice. ;)
pete

Just enough power to break everything behind the crankshaft.
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Re: Just a little more . . . . .

Postby BC847 » Mon Mar 09, 2020 3:16 pm

Be clean . . . .

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David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby BC847 » Wed Mar 11, 2020 3:53 pm

48 hours later . . .

Rooted around a little in the boxes of engine parts that came to me. Looks to be a NON ICed VE based on those long DV-holders.

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Interestingly, found one of the compound fuel filter adapters.

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That, and this stationary mount (there's two of what look like side mounts as well) makes me wonder was it a stationary Indust/Agri power unit.

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But, there's that AFC on top of the IP. There's one of the dual-diaphragm vacuum-pumps. There's also a handful of stuff that don't seem to be related. (Just throw it all in the box. Make it go away).
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby BC847 » Wed Mar 11, 2020 4:00 pm

Pulled the block out of the cold-wash and pressure-washed it well. (The thing was surprisingly clean internally as it went into the wash).

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The NW Foundry, USA?

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The large freeze-plugs I removed look to be in excellent condition. . . . . ?

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The readily seen coolant-jacket interior is remarkably clean and rust free.

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Isn't there suppose to be a copper bearing in the front-most cam journal?

Image
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
BC847
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Re: Just a little more . . . . .

Postby BC847 » Wed Mar 11, 2020 4:06 pm

I've had these things for a while and actually use them on occasion. This episode has me using the internal micrometer thingy. Cool!

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OK. The FSM calls for a minimum cylinder bore of 4.0157". Fine.
I set my caliper to 4.0157ish".

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Then, I set the internal micrometer for 4.0157ish".

Image
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby BC847 » Wed Mar 11, 2020 4:12 pm

Now, according to the FSM, I want to go into the cylinder bore one inch and measure the bore oriented left to right.

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Then, front to back.

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Next, we move down an additional 4.5" for a total of 5.5" (ish ought to be good enough. I hope).
Bottom, left to right.

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Then, bottom front to back.

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You wrote that sthi down, right? :shock:
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby BC847 » Wed Mar 11, 2020 4:13 pm

Give or take 0.001ish . . .

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NOTE: I also measured the bore, just under the topmost flare, just above where the piston-ring wear stops (the ridge). They are around 4.0192" ish as noted.


If my measurements are right, it seems the cylinders are just inside the FSM specified maximum diameter of 4.0203"'. Out of round and taper, . . . not so much.


DERP. Those 0.012ish" measurements are suppose to read 0.02ish"
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
BC847
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Re: Just a little more . . . . .

Postby PToombs » Thu Mar 12, 2020 3:10 pm

Yes, there should be a bearing in the front cam journal, it's the only one that has a bearing. ;)
pete

Just enough power to break everything behind the crankshaft.
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Re: Just a little more . . . . .

Postby BC847 » Thu Mar 12, 2020 3:33 pm

PToombs wrote:Yes, there should be a bearing in the front cam journal, it's the only one that has a bearing. ;)

Yeah, looks like somebody cleaned the bore with sandpaper whatever.
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
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Re: Just a little more . . . . .

Postby PToombs » Sat Mar 14, 2020 7:16 am

BC847 wrote:Yeah, looks like somebody cleaned the bore with sandpaper whatever.


Oh boy! :shock:
pete

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Re: Just a little more . . . . .

Postby BC847 » Sun Mar 15, 2020 9:13 pm

Got the donor crankshaft cleaned up. As received, it had some boogers of corrosion on the journals. Sanding/polishing it away reveals a little pitting. I don't have a proper micrometer to measure them accurately but, using some relatively good calipers finds them looking like 0.010" ought to clean them up. 0.020" at the most.

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The front crankshaft seal will need a Speedy-Sleeve.

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The rear crankshaft seal . . . . dunno. Polishing might clean it up enough.

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Moving on to my head, removing the valves finds them well worn. The intake-valves all present with notable pounding type wear? See the ridge?

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The exhaust-valves are done.

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All the valve-stem tips present with visible wear at the rocker-arm interface.

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The head itself is in the cleaning vat.


Crap.
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
BC847
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Re: Just a little more . . . . .

Postby BC847 » Sun Mar 22, 2020 3:27 pm

After soaking for two or three days, pulled the head out of the vat and pressure-washed it.

- All the valve-seats present with notable wear. It's very clear that the valves have not been rotating as they work. Lots of small groove type wear, everywhere.
I think a simple redressing should clean them up. I hope, anyway.

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This Corona crap is hitting home hard. Stuck at home isolating. No income on my part ATM. The workplace appears well secure so far. >Fingers Crossed<
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
BC847
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Re: Just a little more . . . . .

Postby BC847 » Wed Mar 25, 2020 10:53 am

"The workplace appears well secure so far. >Fingers Crossed<"

Wanna upgrade the truck brakes? Try a Corona-Virus related "Temporary Lay-Off".

S hit comes to a halt real quick.

- To be continued.

>sigh<
David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
BC847
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Re: Just a little more . . . . .

Postby BC847 » Sat Mar 28, 2020 5:22 pm

My Son was kind enough to get those bell-housing bolts removed (it was a PITA). That and the front mounts had the OEM short-block come on out. It's first, and last unfortunately.

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What a mess.

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David

1993 12mm VE Fueled W250 CC, Green
12.67 @ 103.35
Your basic farm truck ;)
BC847
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