1:8 McLaren Honda MP4/4

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ajdavison2
ajdavison2
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Joined: Wed Dec 08, 2010 11:41 am

Re: 1:8 McLaren Honda MP4/4

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strad wrote:
Mon Mar 02, 2020 8:01 pm
must compliment you on your attention to detail Alex. Are you a surgeon? :wink: I don't think the guy that cracked my chest did as clean of work.
Haha you flatter me sir. It's going well, but not without it's issues (the tyre, some chewed screws, wires etc).. But on the other hand I like the imperfections.

ajdavison2
ajdavison2
23
Joined: Wed Dec 08, 2010 11:41 am

Re: 1:8 McLaren Honda MP4/4

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strad wrote:
Mon Mar 02, 2020 8:01 pm
must compliment you on your attention to detail Alex. Are you a surgeon? :wink: I don't think the guy that cracked my chest did as clean of work.
Haha you flatter me sir, unfortunately not as evidenced by my balls ups with tyres and bits of wire poking out etc.

Anyway back to this issue, and onto stage 49. Parts supplied with this issue were: From top left to top right, connectors, throttle cable bracket, throttle link middle, throttle link right, throttle link left, front right brake line, front left brake line, rear right brake line, rear left brake line, hose C (bottom left) & cable tie tape (bottom right).
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Stupidly none of these parts are actually used in this stage. Feels like another frustrating way to extend the length of the subscription.

Parts required from previous stages were:
- Heat exchanger (Stage 10)
- Body mount brackets A x 4, body mount brackets B x 2 & underbody middle assembly(Stage 47)
- Underbody rear assembly, heat shield sticker section B, tailpipe endplates (L and R) & tailpipe endplate parts (L and R) (Stage 48)

First up the brake lines were inked (not pictured)

Stage 49.1 was applying the heat shield sticker to the heat exchanger and trimming where necessary. See below for the before and after photos.
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Following this, stage 49.2 was attaching the tailpipe parts to the respective tailpipe endplates, firstly the paint was scraped off and the parts were glued on. Care was taken to ensure the right and left parts were glued onto the correct corresponding endplates.
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Next up, 49.3 (called joining the underbody middle and rear, even though no such thing takes place haha). For this stage, the brackets A x 4 were screwed onto the underbody middle. See before below:
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And after:
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Likewise the brackets B x 2 were screwed onto the underbody rear.
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49.4 was the fitting of the heat exchanger. This was a little tricky as it involved locating pins into holes that were covered with heat shield sticker. Managed to do it by rubbing my thumb over the area and looking for the indentations in the light.This was glued in place onto the underbody middle.
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Finally for this stage, 49.5 was the fitting of the exhaust tailpipe sub assemblies to the underbody rear. This was done by gluing them, care was taken as they not only had a left and right sub assembly, there was also a left and right of each assembly. So there was only one right way to get them in, even though they fitted in multiple orientations (if that makes sense).
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And that's it for this stage. I thought the underbody itself was quite interesting from an aero standpoint so I took some more photos of it and the diffuser. Make of it what you will :P
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And some of the underbody rear and middle together.
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A point to note, which wasn't very clear in the instructions. You'll notice there's a black line between the 2 halves where the heat shield stickers are a mill or two shy (I think on the underbody rear). The photos of the finished model in the magazine seem to indicate that the underbody parts are designed to be separated if desired, so my plan is to use left over heat shield stickering and fill the gap on the underbody rear. This will basically be trimming a 1mm strip and sticking it vertically to the tiny lip where the 2 underbody halves meet. This will make more sense when I actually get round to doing it.

Anyway that's it for this update. Thanks for reading as usual, if there's anything else you want to see just let me know. The next update might not be for a while as I'm working away from home at the minute, so finding time is a bit tricky. But as it will be issue 15, I'll be doing my 5 issue round up to show the overall model progress to date. I know right, I can barely contain my excitement either.

Cheers,

Alex.

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strad
265
Joined: Sat Jan 02, 2010 12:57 am

Re: 1:8 McLaren Honda MP4/4

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Alex;
I'm sure some out here are waiting with almost as much anticipation as you to see the final screw go into place.
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss

ajdavison2
ajdavison2
23
Joined: Wed Dec 08, 2010 11:41 am

Re: 1:8 McLaren Honda MP4/4

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Hi guys, back again for another update. At least I'm managing to be somewhat consistent in these weird and unusual times. Been going at this for a year now, only realised that as it would have been Senna's 60th this weekend, and I started this blog on his birthday last year. How time flies eh... probably the only photos of a disassembled F1 car we'll be getting anytime soon as well haha.

Anyway this series of updates will be covering issue 15, which is predominately the assembly of the engine and a few ancillaries.

First up, stage 50 - Assembly of the engine 2. Parts supplied with this issue were: Left & right manifold intake base (top row), left & right cam cover base (middle row) and left & right upper engine block (bottom row).
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Parts required from previous stages were:
- Plug caps & engine block assembly (stage 7), there's photos of these coming up later in the post to jog your memory.

Firstly 50.1-50.2, mounting the manifold bases. Now immediately this was frustrating as it involved disassembling the engine block. The reason that this was so annoying was that a) it was pointless to assemble it in the first place, and yet another example of the issues just being prolonged for the sake of it. b) when I assembled it the first time it was very difficult to get the screws in and they ended up getting chewed and therefore difficult to unscrew, and re-screw. I'll come back to this later.
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Next up the cam cover bases were glued to the engine block, as straight forward as it sounds. Pictured below with one side done for comparison.
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Following this the manifold bases were glued onto this sub assembly.
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This was repeated for the right hand side:
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Next up 50.3 the upper engine block (L & R) were screwed to the engine block.
Before:
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After:
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Again, this was straight forward enough. Care was taken to get the right holes aligned, the screws on the left hand side went in perpendicularly, but the right hand side went in at a slight angle (this was by design by the way according to the instructions).

Following this the engine front and rear were both screwed back onto the engine block sub assembly. A nut was also added to to the assembly for the engine block front. I think this is to attach it to the monocoque assembly at a later stage.
Before:
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After:
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And then the front and rear portions were screwed back on. Now here, I've taken the liberty of showing you how badly damaged the screws were. It got to a point where it was impossible to screw them with a screwdriver due to how badly messed up the heads were, so I used some needle pliers to manually twist them as best I could. This worked, but it was impossible not to leave scratches on the metalwork of the front and rear blocks.
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No harm no foul though, I just touched up the metal work with a bit of paint. I can't imagine it'll be very visible anyway once the engine, monocoque and gearbox are all attached together.
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Next up, 50.4, fitting the plug caps. First up, the cam covers were replaced. Same issue as the front and rear blocks re: screws, but not to the same extent.
Before:
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After:
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Before I show photos of the plug cap to engine block assembly, I just wanted to show some photos of the caps themselves, I didn't notice when I got them ages ago that they've actually got text on. I've tried to show this the best I can. Not relevant to the building process or anything, just another little detail that I find interesting that it has been replicated.
Photo 1, just to show the size and scale:
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Detail photos:
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These were then glued onto the engine block, helpfully covering the chewed up screws as well on the cam covers.
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And another photo of the detail:
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And that's it for this stage. I'll be continuing with this over the coming week or 2, up to stage 53.

Cheers,

Alex

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strad
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Joined: Sat Jan 02, 2010 12:57 am

Re: 1:8 McLaren Honda MP4/4

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WOW! Really Nice.
I am very familiar with the use of cheap screws that even with the use of high quality screwdrivers you cannot avoid chewing up the heads. Good job of fixing that up and like you say most will probably hidden. About the only thing a guy can do is the moment it starts to be really tight or hard just stop and find some higher quality matching screws.
I'm lucky in that I have a close by retailer that if it has threads they carry it. I turned to them for some small screws on a Mercedes. The supplied ones were black anodized so I just had to give them a dusting of black spray paint. :wink:
Once again, great work. It's always harder than it looks.
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss

ajdavison2
ajdavison2
23
Joined: Wed Dec 08, 2010 11:41 am

Re: 1:8 McLaren Honda MP4/4

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strad wrote:
Mon Mar 23, 2020 11:44 pm
WOW! Really Nice.
I am very familiar with the use of cheap screws that even with the use of high quality screwdrivers you cannot avoid chewing up the heads. Good job of fixing that up and like you say most will probably hidden. About the only thing a guy can do is the moment it starts to be really tight or hard just stop and find some higher quality matching screws.
I'm lucky in that I have a close by retailer that if it has threads they carry it. I turned to them for some small screws on a Mercedes. The supplied ones were black anodized so I just had to give them a dusting of black spray paint. :wink:
Once again, great work. It's always harder than it looks.
Cheers Strad, it's been a recurring problem on several of the screws. I actually a decent set of precision screw drivers when I started the kit so I'm inclined to agree with you that it's likely just the screws. I wouldn't know anywhere where I'm from to get higher quality versions of exactly the same types of screws. Trouble with just going until it was tight was that the screws were biting when there was still about half of the length protruding. I'll take it on a case by case basis, if they're likely to be hidden (Spoiler alert in the next step I'm posting, some of them are haha) then I won't be too fussed, and I'll just try and mitigate the damage to surrounding areas as I did with the paint above. If they're going to be very visible, or needs to come off I'll invest in a small tapping tool from somewhere and enlarge the holes where needed. That's my plan of attack going forward.

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strad
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Joined: Sat Jan 02, 2010 12:57 am

Re: 1:8 McLaren Honda MP4/4

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That's my plan of attack going forward.
Good Idea! If you can find a small enough tap. :wink:
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss