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VF500F2 Aka MBD Incubation Period At Least 52 Years


Dutchy

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Sportbikes...................

 

 

 

50 years apart..... :tongue:

 

 

 

PSX_20200523_172249.thumb.jpg.6d47fa06073ff68437c038e36d7e4035.jpg

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While I now have to wait for my tag, was busy today safety wiring a few nuts and bolts as "vibrator" may be her 2nd name..... :goofy:  150cc 50's engine, as expected I guess...

 

Note that this is NOT up to USAF/NASA spec, but one deals with the holes presented....

IMG_20200525_135144.thumb.jpg.bbc6b8dab16f02474e4f0bf9d033c8be.jpg

 

 

IMG_20200525_144802_DRO.thumb.jpg.065482c91711f7d0d6455dd9fbf4dbd0.jpg

 

 

 

PSX_20200525_135640.thumb.jpg.08d8b38b5464b564721edbc3744dc8a7.jpg

 

 

 

Had the engine running for a wee while, rode up and down the close; then the engine started to run like shyte. Misfiring, poor throttle response....   But, better now than late at night on the Bridge between Denmark and Sweden I guess.... :tongue: @keny

 

 

 

Can you guess from this picture what caused it?

The points are directly wired to the battery and it worked fine so far..

 

image.png.0867f91722e6a54b184db344153dd15d.png

 

 

 

 

 

 

all will be revealed here..........

 

 

 

 

 

 

 

 

 

 

 

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Registration complete - CHECK

Period correct plate made - CHECK

Liability insurance (€36/yr) - CHECK

1st shake down run - CHECK

 

IMG_20200527_191706_DRO.thumb.jpg.88db88563eadfbf349f43b73d810e25a.jpg

 

 

IMG_20200527_191651_DRO.thumb.jpg.64c1f5abd974143a83e47c896af4b56c.jpg

 

 

IMG_20200527_191625_DRO.thumb.jpg.d2fbe9c6138ec0a2f2cba008eb90125a.jpg

 

 

 

Carter vent - FAIL 

IMG_20200527_193730_DRO.thumb.jpg.b457a06efb3a420b13baa381441485bd.jpg

 

 

IMG_20200527_193709_DRO.thumb.jpg.609f83c436de2c00ebe17799189d13a6.jpg

 

 

All in a day's work I guess :goofy:

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Main culprit is the piston rings, causing too much pressure inside the carter....  to be continued!

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On 5/27/2020 at 2:39 PM, Dutchy said:

1st shake down run - CHECK

 

...don't forget to make sure the rear wheel nut is properly staked. Front too! 😉

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6 hours ago, Gebruiker said:

 

...don't forget to make sure the rear wheel nut is properly staked. Front too! 😉

:goofy:

 

 

 

IMG_20200529_154639_DRO.thumb.jpg.8ee3c8c0093b4ade4920687b035ab434.jpg

 

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Sportbikes...... 66 years apart

 

 

 

PSX_20200530_173906.thumb.jpg.5cfd865323367fce30944a12a0510763.jpg

 

 

 

 

IMG_20200530_141639_DRO.thumb.jpg.794b4405254096be793ad7f661266cc7.jpg

 

 

 

 

IMG_20200530_141620_DRO.thumb.jpg.1ed1efa92038f6e4a51bbed9988b0194.jpg

Did @SEBSPEED move into modding Ducs?? 😉

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Old skool racer carter vent

 

IMG-20200601-WA0014.thumb.jpeg.25da24a097c7f4b1b8751ac5759863b4.jpeg

 

But she's an alpha female alright, marking  her territory

IMG_20200601_154602_DRO.thumb.jpg.47aeda0d083b7794cbca29aeb6c91495.jpg

 

 

Piston rings remain suspect, the vent smokes quite a bit. Like a 2-stroke.... 😞

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The main leak atm is the oil seal behind the clutch basket.

 

IMG-20200531-WA0029.thumb.jpg.fd27eb33b0c83da12367c1976f97bc35.jpg

 

IMG-20200531-WA0030.thumb.jpg.39cbf9127bba447fd1b9fca7751eba4a.jpg

 

 

 

"Auto chain oiler" flings a bit.. :tongue:

IMG_20200601_175346_DRO.thumb.jpg.04de786a494ef206154ad9ac01019bfa.jpg

 

New seal is en-route.. :fing02:

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IMG-20200602-WA0014.thumb.jpg.46687ad7b6b4449ce3ef0890da46fc74.jpg

The book says I should have 5.9bar compression

 

 

I get....

IMG-20200602-WA0011.thumb.jpeg.0f5c29fd9b3b661f4310efbd9e960786.jpeg

 

 

So now I know where the over-pressure in tge carter comes from....

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My bad, I measured with throttle shut.

 

 

With WOT

 

IMG_20200603_105429_DRO.thumb.jpg.d796b7b7ae8e7c937ba55dad756febbb.jpg

 

 

Still bad though....

 

 

This is the "Sport" engine so I should get 6.1...

IMG-20200603-WA0010.thumb.jpeg.893197cce47cddb894c11c75eadc95f5.jpeg

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Busy afternoon...

 

 

With the Gilera engine's piston rings most likely shot, I started on the spare "race" engine. Splittjng the cases to fit the (removed by a PO) kickstarter.

 

It dawned on me that both being 150's, it could be simpler for now to swap heads. That would get me back "on the road" quicker.  The worn head could then go for a refurb/rebore later. 

"those in the know" are verifying if this a straight forward swap...

 

 

"Virginity can be cured

Today I removed a piston from a conrod for the very first time.  Painlessly :tongue:

 

 

Raining today so the wee garden shed had to make do

 

IMG-20200604-WA0025.thumb.jpeg.a3c050265faa976d57feabb9f9500ad6.jpeg

 

 

 

IMG-20200604-WA0027.thumb.jpeg.0413502f91d2e988f7ce4b0025e5a4dc.jpeg

 

 

 

IMG_20200604_150653_DRO.thumb.jpg.f446af7201bbd718ecae83dabbcf334e.jpg

 

 

Testing the piston rings by pouring some petrol on the piston

 

IMG_20200604_151534_DRO.thumb.jpg.f869684c25b60fd6797d56a234550875.jpg

 

 

No seepage and it cleaned up things nicely

IMG_20200604_152019_DRO.thumb.jpg.ed035d5ce0568e81e2b61109111676d9.jpg

 

 

 

IMG_20200604_152911_DRO.thumb.jpg.1a5cca8e25b6909ee57d9a9aafaa5bf3.jpg

 

 

IMG_20200604_153619_DRO.thumb.jpg.00523f4777d2c76f571399e0baaf21ec.jpg

 

 

 

IMG_20200604_153816_DRO.thumb.jpg.0219380a252a34713d3bb9e714c4a5d9.jpg

 

 

 

IMG_20200604_161156_DRO.thumb.jpg.8e9c568a9086dedd2183a71d0afa2753.jpg

 

 

IMG_20200604_161545_DRO.thumb.jpg.14136b94f1dfb6778bb55c7fa92fad3d.jpg

 

 

To be continued

IMG_20200604_161550_DRO.thumb.jpg.33e4190184514a33581c5dd7f9c18d2c.jpg

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Helmet.....

 Which helmet to wear while riding the Gilera?

 

 

The Mamola replica?

PSX_20200605_154237.thumb.jpg.3f4873844ce00681f57f8801743e139c.jpg

 

Nah...  Too modern...

 

 

 

Which definately rules out

eaa9ddebbfccb17544860647f2d66284.0.thumb.jpg.e68d2cc38a3c4e45234a003677dcb5cf.jpg

 

 

 

 

 

"The answer's easy if you take it logically..."

 

 

 

 

PSX_20200605_153549.thumb.jpg.12445e076daccd0bf12b112ccccdb125.jpg

 

 

 

PSX_20200605_152130.thumb.jpg.7ab77dd99c68a4115b38bbe3684be1ed.jpg

 

@Muff

 

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6 hours ago, Dutchy said:

Helmet.....

 Which helmet to wear while riding the Gilera?

 

The helmet is the right image but it's a nice face. And all those teeth. Are you sure about that choice? 

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I met Muff @tmac12;  he proved tough enough to beat illness.  

 

My command of english not so good. Is there other meaning?  :goofy:

 

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Practise makes perfect, so today I took the head of the oil burning/excess oil pressure engine.

 

IMG_20200606_125611_DRO.thumb.jpg.b9bfabb58faf34fda771bafeffe59057.jpg

 

IMG_20200606_125620_DRO.thumb.jpg.2f590777dc9fdf3274d1a679ca57e917.jpg

 

 

 

Full Metal Jacket, euh Gasket...

IMG_20200606_125634_DRO.thumb.jpg.1a6d515be3f4ad6163b7259317ab0dfd.jpg

 

 

 

"Oh....."

IMG_20200606_131511_DRO.thumb.jpg.a62b6f7c904950279c3e97a651c72d7d.jpg

 

 

1 piston ring broken, other misses a whole section 🤢

IMG_20200606_133110_DRO.thumb.jpg.a4a4dddb0e7676013d15dd7ff3771c70.jpg

 

 

So I will go fishing for metal bits with a magnet inside the carter 😉

 

IMG-20200606-WA0028.thumb.jpeg.8192462cfa68920b052409d32bfb2bb9.jpeg

 

 

 

 

 

 

 

Aye, needs some TLC

IMG_20200606_141953_DRO.thumb.jpg.e176bee0c7aa24a27a960d6c60cdcfad.jpg

 

 

IMG_20200606_142004_DRO.thumb.jpg.18c7dd531e805b17d12fc1acdb29a3ca.jpg

 

 

Removed clutch basket to reveal farked seal

IMG-20200606-WA0031.thumb.jpeg.f5f30ba85b7e3737f6350b2cb58a5080.jpeg

 

 

IMG_20200606_151837_DRO.thumb.jpg.37668476b82c34b92016b5fba0c5a7c0.jpg

I have a new seal in the shed.

 

 

Front sprocket is rivetted solid to the clutch basket, so you use it all....

 

IMG_20200606_151857_DRO.thumb.jpg.59655c4e769d3bc333bcd6f12a258a5f.jpg

 

 

 

 

Engine head #3 next,  then of to a specialist for apraisal.....

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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19 hours ago, Dutchy said:

I met Muff @tmac12;  he proved tough enough to beat illness.  

 

My command of english not so good. Is there other meaning?  :goofy:

 

Ah...........yea.............You might want to use google to find out. It deals will sex. LOL  https://www.urbandictionary.com/ might be a better choice to use. to find out. 

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Numbah 3!!!!!

 

 

IMG_20200607_121128_DRO.thumb.jpg.1a16eba985c1e410eca60e3e98ec05a8.jpgIMG-20200607-WA0004.thumb.jpeg.dd5168ce993f6284f25e9339f91064b8.jpeg

 

 

IMG_20200607_123542_DRO.thumb.jpg.8f1e44ecfc341b75a47dff175e641aa7.jpg

 

 

needs  a welder too....

IMG-20200607-WA0008.thumb.jpeg.7952f1177c4f67e809d6b14b889a5f5a.jpeg

 

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Took the 3 heads to a specialist.

 

IMG_20200608_104516_DRO.thumb.jpg.036c289d048f16b858a6001f2e4bcb22.jpg

 

 

He refurbishes all kinds

 

IMG_20200608_104527_DRO.thumb.jpg.50379088b4f4764fe3c98a98793130d7.jpg

 

 

 

The verdict on mine?

 

220px-Good_the_bad_and_the_ugly_poster.jpg.5de842a82b91c2614f811c8a0d511d67.jpg

 

 

The bad and the ugly go in storage "for later use"

IMG-20200608-WA0008.thumb.jpeg.85d6ac8b4e543e430eedd53d320ea6b9.jpeg

 

 

The good one only needs honing the cilinder and new piston seals.

IMG_20200608_105258_DRO.thumb.jpg.b559c8071cdeb2127bdc9d7b82ed21a2.jpg

 

 

I removed the stuck ones

IMG_20200608_120638_DRO.thumb.jpg.1890b16c267b8fdea5ad71b8d3b512df.jpg

 

 

The head joined the WIP queue; ETA 2 weeks 🤞 

 

 

 

"Panniers" :goofy:

IMG-20200608-WA0013.thumb.jpeg.372a000a68792428d464c8abfc3c24ea.jpeg

 

IMG-20200608-WA0010.thumb.jpeg.04d4e5cfcb49e8f2ea7dd38f878b637a.jpeg

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