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Old 06-06-2011, 12:36 AM   #31
Houseoffubar
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Fun, I'm gonna enjoy watching this one! I just love to see things brought back to life, I have little doubt your the man to do it! Keep up the good work!
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Old 06-06-2011, 10:24 AM   #32
crazydrummerdude
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I did the vinegar trick on my friends gas tank and it worked well.. got a ton of dirt/rust/junk out of the tank.. until I let it sit out and get surface rust all inside it. So, it's full of vinegar again on my workbench. This time, I'll fill it with gas when I'm done. Not bad for a couple dollars. I would love to see a before/after with your tank.
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Old 06-07-2011, 08:28 PM   #33
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↑ ↑ ↑ Now, this tank is dead to me, but one lucky inmate wants it for an art project.

So now I got to flush it before mailing. We'll see how this vinegar trick pan outs.

Here's a before pic after I drained most of the sludge.

IMG_2583

Once filled with distilled white vinegar it quickly turned into Chicken Tikka Masala.

IMG_2598

Ooops!

IMG_2596

Just a wee little leak...

IMG_2595

I'll report back in a fortnight on my findings.
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Old 06-09-2011, 07:53 PM   #34
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Continued teardown highlights and notable findings...

Right cylinder head came off with no fuss. Header and sparkplug threads were in healthy condition.

IMG_3844

However.... here's what lay below. As suspected, the cause of the frozen engine.. rusted rings.

IMG_3847

I then channeled a CDD thread for this doodad. Made a simple puller/pusher tool. This sneaked the barrel off curse word free.

IMG_3854

IMG_3860

Left cylinder head plopped off easy.

IMG_3849

I was kind'a bummed I didn't get to use my new tool on the left barrel. It slide off by hand.

IMG_3850

IMG_3867

Engine spun smooth and free. No abnormal in/out play on the con rods, or photo worthy wear on the components.

The speedo indicated a sun bleached 30k, and the PO said this was correct, but I won't use that as a baseline for any evaluation.

Bagged and tagged most engine components for scrupulous inspection later.
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Old 06-10-2011, 07:35 AM   #35
Bill Harris
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It would be a good idea to pull the rods and look at the big-end rod bearings-- this will give a definitive assessment of the rod, and also the main, bearings.

And remove the oil pan and note the "swarf" collected there. And the oil pickup screen assy.

How do the lifters look? Pitted?

You're making good progress.
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Old 06-10-2011, 12:54 PM   #36
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It would be a good idea to pull the rods and look at the big-end rod bearings-- this will give a definitive assessment of the rod, and also the main, bearings.

And remove the oil pan and note the "swarf" collected there. And the oil pickup screen assy.

How do the lifters look? Pitted?

You're making good progress.

I agree as oil tends to become acidic when it has been sitting for years and will corrode the bearings over time.
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Old 06-10-2011, 05:51 PM   #37
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↑ ↑ ↑ Yup, I removed the con rods and will post pics of the oil pan findings.

I planned to get the engine fully balanced, so Iíll remove the cam and crank. Iíve been told not to monkey with the bottom end, since they are long lived, but Iím just uneasy about letting it be. It has languished for awhile.... however, the internals havenít shown any sign of trauma. I'll let it percolate as I labor on the rolling chassis.
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Old 06-11-2011, 07:51 PM   #38
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Continued teardown highlights and notable findings...

Dropped the pan and the screen was its usual grubby self.

IMG_2601

No magic glitter, metal nuggets or wayward e-rings in the bog.

IMG_2604

Inspected further with gloves, but it was just a thick, slick mud bath.

IMG_2608

Lifters still in serviceable condition.

IMG_2612

IMG_2614

Hard to take photos in the case, but here are the best I got.

IMG_2619

IMG_2620

Pulled the engine and cleaned the worst buildup from the case with a brass brush and mineral spirit. Upon further disassembly, I'll probably sodablast the case for a somewhat consistent finish.

IMG_2623
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Old 06-11-2011, 09:57 PM   #39
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Not bad looking inside. It's rather like a Bog Mummy, looks really rough on the outside, but low mileage.

The speedo cable boot looked intact so that probably means that the tranny is dry inside.
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Old 06-12-2011, 09:51 PM   #40
crazydrummerdude
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I then channeled a CDD thread for this doodad. Made a simple puller/pusher tool. This sneaked the barrel off curse word free.

..thought that looked familiar.

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Old 06-16-2011, 08:04 PM   #41
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Continued teardown highlights and notable findings...

Frame now neked and all parts ziploc'd in storage.

IMG_3990

Used the Makita master key to remove the fork lock.

IMG_3840

The sweet spot.

IMG_3842

When restoring my old r90 I used the dermel and chisel technique to remove the rusty racers. It worked, but what a pain. Bought this tool from cycleworks.net and it took longer to install than to wrench the racers free.

IMG_3959

IMG_3966

The centerstand threads were knackered after I removed the bolts. I was going to tap the hole larger, then I ran across these fix'em bits from wirewrkr. http://www.advrider.com/forums/showthread.php?t=397549

Drilled the hole larger, pressed in the new metal insert and installed the new bolt. Perfect and secure fit!

IMG_4266

The tang was ham-footed long ago, so made a new one for the centerstand. It'll get welded up after I lug this heap to my uncle's garage for further shenanigans.

IMG_4270
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Old 06-16-2011, 08:29 PM   #42
disston
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Much nicer on the inside than the outside would indicate. I think you got a winner. Too bad about the tank but hey you have more, great match. You were made for each other.
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Old 06-18-2011, 07:01 AM   #43
loukyairhead
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What a fun thread! I look forward to future installments!
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Old 06-24-2011, 09:35 PM   #44
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Tank Flushing

Well... tank stewed for 2 weeks in distilled white vinegar. Let see how it flushed out.

Before...

IMG_2583












After...

IMG_2660

IMG_2657

IMG_2653

No, I didn't accidently upload a gold panning pic... that's the sediment that globbed out.

IMG_2663

Quite impressed... I wasn't expecting that much purging power from vinegar!

It'll probably flash rust this evening, but at least it's somewhat sanitary to mail. Should be another inmate's headache shortly.
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Old 06-25-2011, 12:48 PM   #45
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That is amazing.
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