DocRob

I gave the fuel tank another try and oversprayed the white, after sanding away the visible seam, using a different white color. The result was better but not good enough, so I stripped the tank, something I never did before. I always try to have the perfect plan, the appropriate tools, but this time, no luck. There are several decals for the fuel tank included in the kit, so my next try will be a polished finish with next to apply pinstripes in flame shape, similar to the black and white design. I filed and steel wooled the surface, before I polished with Autosol and my Proxxon cotton bit and finally by hand with cotton cloth and again Autosol. Somehow the sheen is hard to capture, it looks near mirror like in reality and the grey ´smear´ on the lower pic is some kind of reflex , no bad spot. Cheers Rob

Hmmh, well, mixed success for today. The decals for this MFH kit are extremely well made. They fit perfectly, are robust and have a good color density. I dreaded the golden pinstripes on the mudguards a bit, but they came out great, applied only with water and a drop of detergent, no decal solutions needed. The parts are still not gloss coated. I´m not happy with the fuel tank. As per manual, I airbrushed it gloss white, masked off the front part, and sprayed the rest gloss black. The finish was almost perfect, but there was a tiny parting line between the colors. After applying the decals, the parting line showed even more, but there is also a different hue to the white sprayed part of the tank. I may strip the tank and use other decals as decor. The flame decals generally lay down beautifully and all the wrinkles on the curved contour could be pushed out while curing, but the result is not satisfactory. I watched the MFH promotion pictures of the kit, and the parting line is visible as well, bummer. Cheers Rob

Lots of prep work done lately. I filed, sanded and near polished fuel tank and mudguards, primed them with Mr. Color grey primer 1200 and sprayed the tank with Tamiya LP-2 gloss white, which came out nice and shiny. Of course, I drilled all the necessary holes beforehand. The rims also needed a lot of preparation. As you can see on the pic, there are prominent cast seams between the spokes, which I cleaned with a sharp blade and then used a rotating tool to refine the surfaces. I decided against polishing and also primed the rims, after I drilled the holes for the spokes. Body color will be black now, where initially thought about dark blue, but I don´t like the look of blue rims. All other parts, which will be painted black, were drilled, prepared and primed. Luckily some help arrived today, more drill bits and two DSPIAE hand drills, the left one with a collet, the right one with a chuck. You can´t have enough of these, as you permanent need to drill holes in different diameters. Cheers Rob

You are right Peter, your release is the only -3 of the pack, it seems, but I guess the sprues are modular, to made fit to all -X with some new parts added. Mine is a shelve queen for the moment, as I have other projects in the pipeline. I added Quickboost resin engines and propellers for mine and also some Reskit Browning MG´s. I´m not sure, if I like the all gloss sea blue proposed for my -5A, so I may have to look for some decals as well. 1/72 is not my favorite scale, so it may take a while until I start, but I like the big Cat and this makes the build mandatory. Cheers Rob

The original kit was issued by Academy in 1993, but got new parts and decals for different versions. To my knowledge, Wolfpack adds new decals and masks with their releas. I have the Revell boxing rooting from the same base kit. Cheers Rob

What a nice kit and display. Like Egilman says, the rotating prop let it look real. Cheers Rob

The battery/alternator area was a little bit nightmarish to assemble, with lots of connecting parts, PE brackets and the wiring, which needed to be pre fabricated, because of the tiny PE connection fittings. Somehow, I got it done with a bit of wiggling. Adding the pedals on both sides was much simpler affair, luckily and they are now awaiting the footrests. Until now, there is one thing to remember with that kind of build. Study the manual, examine, where all the parts connect and how, measure the connecting diameters and drill out the corresponding holes and try not to forget any, as they may be impossible too reach later. Sure, test fitting is mandatory as well. Cheers Rob

Luckily my world doesn´t only move by turning a key or push a button, as I walk, run, work in the garden and bike a lot without burning fuel or electricity. No blocks where I live . You´re right, technology, specially combustion engines changed the world, but computers and smartphones also did. Do you have the same technological insight on these evenly important modern world movers? Me neither and I don´t want to sound disrespectful. What I mean, technology changes and in it´s whole is very complex to understand. I´m a bit more than half wit with computers, but with combustion engines, it´s only very basic knowledge, I possess, even when I studied engineering in the late 80´s. When I got my apprenticeship as an engineer, I built a steam machine from raw material as a learning project and there are not many mysteries with these anymore. We also developed a CNC-milling machine as a project, late 80´s, like I said and that left a thorough insight, which was reinforced later on. With car and bike engines, it´s different, I´m more of a user. I understand nearly all the mechanical processes, but fail where electricity comes into the game. Modeling is clearly a chance to understand technology, due to replicating them and discuss the subjects, like here on MSW. I learned a lot about the "how does it work" through modeling, but it takes time with complex knowledge. The Crocker is a good example, where there is a lot of technology involved, with only little more, like design. In a way, it´s technologic essence, nearly nothing is hidden and therefore prone for learning. I can only thank you again for showing me, how this wonderful bike works. Cheers Rob

Wow thank you Egilman, I can feel your head shaking about my non existent knowledge about the ignition system of classic bikes. I will need some time to digest the thorough information you supplied here. I have to understand the English terminology first an then the described process itself. Cheers Rob

I added the ignition wiring, spark plugs and the mysterious third wire, which leads to the hidden condenser coil, the shift rods and gearbox. The alternator and battery are finished, but only mounted temporary, to determine the length of the wiring. The only "AM" used is the tiny bracket, which holds together the ignition wiring. I fabricated it from tin of a wine bottle cap. So far no real worries except a wrong aligned part (my fault), which needed to be pried loose. Luckily I was test fitting the following assemblies and noticed it. Electrical wiring is a bit tedious, as there are tiny PE parts to bend, to accept the un-isolated wire, which easily slips out before gluing. You learn to like Tamiya manuals, where they show you the length of the wires, but apart from that, the MFH manual is pretty clear and easy to understand. Cheers Rob

I achieved some important progress today, marrying the engine and the frame. Luckily casting precision and design is very good and I had only a little wiggling to do, while join the numerous connection points of the engine bearing plates to the engine. The frame itself needed some bending, to accept the engine, which I did before painting. The cast material is durable but easy to bend an very good to work with, luckily. Cheers Rob

Oops, I missed the start of a new page and the even more detailed information, Egilman, thanks for that. I studied a lot of pictures from various Crockers and all seem to be different in details, specially the ignition system. I cannot tell, which of them are original or have been modified later. The condenser coil seemed to have been all over the place, in front of the engine, under the tank and like on your pic behind the engine, which I haven´t seen before on my pictures. When I look for the MFH pictures of the ´Small tank´ model, there are lots of differences to the later ´Big tank´ version. Like on your pic, the coil is mounted behind the seat post. The later big tank allowed to hide the coil under said tank. Cheers Rob

Muchas gracias amigos, you solved the mystery to a classic bike noob like me. The Crockers were hand built and all a bit different in the end. Some examples show said coil mounted onto the frame visibly in front of the engine, with others it´s hidden under the tank. I think Egilman is referring to the 61 cubic inches or about 1000 ccm leading to about 65 hp.

That´s a possibility Craig and yes the Crocker has a battery. Cheers Rob

Thank you Craig, I think, the wire you refer to is shown in the manual in green It ends at the handlebar. The yellow one with the section 7 reference on the lower pic is the one in question, it´s the same like the yellow one in the upper drawing, labeled section 4. Cheers Rob

I have one question for the classic bike experts. Which function has the marked wire, which leads from the distributor to the area of the tank. The other two are the ignition wires, but the third cable, I have no idea of the function. The MFH manual doesn´t show either. The cable just ends under/in the tank area. Cheers Rob

After airbrushing the frame with Tamiya LP-1 gloss black, I continued with the engine. I added the carburetor and some fuel lines, which are hard to reach later. The engine is more or less finished now and will be mounted into the frame next. Cheers Rob

I built up the frame from it´s various parts, which again included lots of drilling and leafing through the manual, to see, which diameter is needed for a hole and what´s going in. Luckily the precision of the casting is fantastic and there are only minimal irritations in the parts. Here is a mock up with the engine mounted into the frame. Meanwhile said frame is primed and the missing carburetor parts got airbrushed. Cheers Rob

The bike looks absolutely fantastic, Tim. I really like, how you nailed the materials appearance of everything. The paint has the right shine as have the different metals and dullness is where it belongs. Hard to achieve, but great to look at, congratulations. Cheers Rob

Impressive work Egilman, I hope your CAD development will be put to reality, when ready. Like you, I learned pen and paper construction in my early days as an engineer, but I never converted to CAD other than producing early day 3D-animations. Your re-engineering is fascinating to follow, I only recently learned, that Model Factory Hiro designs their kits only from pictures very often as well. Cheers Rob

Absolutely Gary, these veneer Tamiya kits are a bit of a mixed bag, quality wise, like I encountered with my recent Renault RE20 Turbo build. With a bit of extra work, they will look very good in the end. I also changed a lot of the Tamiya tubing with finer tubes from MFH and braided lines, which looked more realistic. For my future Brabham BT44 build, I added some MFH funnels and other details to the highly visible engine. These decals must be pretty old, I would test them before applying them to the model. Cheers Rob

The last building sequence was a bit fiddly, with wiring the spark plugs with tiny etched parts and micro rivets, followed by the distributor, which consists of about 20 parts, a lot need to be pre drilled for various installments. There are two variants and I chose the more complicated. The magneto has a fewer parts count, but looks odd and the pictures I have of the real bike always have the distributor installed. I prepared the wires, but add them later, when the engine meets the frame. And that´s how tiny the distributor is, you find it on the left side of the engine, lower middle. Cheers Rob

I added more details to the engine and also prepared the distributor. Drilling the tiny oil tube connectors proved tricky. They need to be drilled to accept the oil tubing made from solder wire. Most of the screws shown on the casings are separate parts and also need to be pre drilled and then inserted. The manual suggests to add the oil tubes next, but I will do it later, because handling the still not finished engine would be a nightmare with the soft wiring on. Luckily the places for the tubing should be reachable later. I also added some dots of black panel wash here and there to enhance contrasts. Cheers Rob

Exactly Craig, most of the polishing tumblers include a bag of non specified steel pins. Mine, the only one which could be shipped to my place after a lot of effort included none and had to purchase them separately. Cheers Rob

I use only the 0,3 mm steel pins, water and a drop of detergent. There are polishing fluids around, but I haven´t tested these. The non magnetic white metal parts are relatively unmoved in the magnetic tumbler, which helps avoiding scratches due to impact of the parts. Only the steel pins swirl around and do their polishing job. I tried a simple rotating tumbler as well, filled with water and tiny steel balls. The surfaces were shinier with that treatment, but you loose sharpness of details and the steel balls don´t reach in all the tiny crevices. Cheers Rob