Engine In

Bit of a milestone this one, but the engine is finally in. It's been mostly in for a since December, so just under six months later and job done.

Not to get too excited of course, it's just in place, it's not running yet, lots to be done before that can happen.

So why so long?

Well... there are six engine mounts, two at the bottom which go all the way through the engine block, and four at the top that just bolt into the chassis, two each side of the engine.

Back in December, Paul and I wrestled the bottom two mounts into place just to get it roughly there. This was the easiest way as it would allow us to pivot the engine then to line the others up. The two bottom mounts were VERY tight and it took a lot of careful manoeuvring (aka hitting shit with hammers) for them to fit. 

We then lined up the other four mounts with the holes and found that they didn't exactly line up, I could partly get one of the bolts in...

Can't. Quite. Fit. If only.Could. Just...

And that's where it stayed until today.

I'd decided that making the holes bigger was going to be a pain, so I'd been doing other things, but really, I need it sorting, so after various thoughts on how to do it I had a 2 min chat with Mike at work. A few mins later Mike appeared with his Dremel.

So I set about expanding the holes and boy did sparks fly. Now I don't own any safety goggles so I wore my MX helmet as that has some goggles with it (I could have just taken the googles off, but they they'd have needed adjusting to fit without the helmet, that all sounded like effort so I just wore the damn helmet).

A few minutes hours later and all four mounts were in. The spacers that were provided with the kit don't quite fit, so I'll need to mod them, and because of that the Hayabusa engine mounts aren't quite the best length, so I'll need some washers and some different length mounts, but all in all, a good job done. 

Not sure now why I put it off 6 months! Which reminds me, I know a good joke about procrastinating, but I'll tell you that later...

DIFFicult

A long, long time ago in a garage far far away, I started building my car. Well, after a very slow going winter I finally have some progress. If you thought I was going to say that it was finished, have you learned nothing from my previous posts?

Tonight I did some work on the diff, the clue was in the title, I did a play on words thing and changed 'diff' into 'difficult'! You've missed these posts haven't you... I'll get my coat.

Where did I leave off? Oh, I haven't even talked about the engine have I yet... well that was fun.

The car looked very pitiful when thrown on the floor.

Tim and I had great fun getting the engine in place, you see the engine has to come in from under the car, so I took the opportunity to turn the car 180 degrees (not that way! I mean so that it was facing the other way!).

The engine was then hoisted in which was interesting trying to keep it level. We got a couple of mounts in place and called it a night as we hit a slight snag.

Check and check again. Did it your side slip? No, did your
side? No. Up a bit more? Urm... let me check again first.

You may remember that one of the engine mounts was screwed and needed re-tapping. This was a fairly simple affair with thanks to Steve for lending me the taps and Paul for showing me what to do during an hours *ahem* lunch break.

It looks tiny. Hopefully it'll be underestminated ;)

So with the mount sorted, Paul and I decided to get the engine in place. Tip of the day: If you're reading this before you've done it, do the two bottom/rear mounts first, you can then pivot the engine much easier to get it at the right angle for the top/front four.

Millimetres make a big difference in this game. Typical,
the mount that is furthest out is the one I had to re-tap.

Oh if only it were that easy, you see the chassis doesn't exactly line up with the engine mounts. It was a real pig getting the bottom two in as things were so tight, but with the force of some Icelandic strong men, we made it work. The top four don't exactly line up though and I'm going to have to get creative with the holes in the chassis to make it fit.

Never-the-less, with the engine in place, I could crack on. I did some other bits which I'll make separate posts about and fast forward to tonight's work, and the title of tonight's post; the diff.

The diff comes in three parts, two mounts and the diff itself. It's a fairly heavy piece of kit, holdable in one hand but really two's needed to lift it. When all three bits are together it looks a bit like a Tie Fighter.

I originally put the mounts in place and then tried to slide the diff in, but the gap was too tight as part of the diff inserts into the mounts. Fair enough, so I assembled the three parts and then tried to slide it in, but it didn't fit, the gap was still too narrow. Hmm.

So I got out the ol' measuring stick (aka a ruler), and found that the diff with the mounts was 17.7cm wide (that's 177mm for you engineers). The gap however was only 17.0cm, so if my maths can be trusted, the gap is 7mm shy of what it needs to be. Just for completion's sake I measured the gap at the bottom, this was bang on 17.7mm, so it looks like the top is definitely out. As it's part of the chassis this was already assembled by Road Track Race so it wasn't anything I could have done wrong. I was going to drop them an email (they've proven very helpful and responsive in the after sales department, so don't let me lead you into thinking that they're a bunch of cowboys who just sit in the factory counting my money).

Anyway, before emailing them I sat and had a little think and decided I'd try and push the diff in from the bottom rather than slide it in from the top. I knew the bottom was wide enough, so maybe once it was mostly in, I could flex the 5mm aluminium mounts or something.

It probably would have been a long easier with a second pair of hands, but it was still light outside so I wasn't giving up, besides, yesterday's F1 race kicked ass so I was dreaming of getting the damn thing on the track.

It went half way in ok with some jiggery-pokery and the three parts were assembled at this half way stage. After that I tried getting into the gap at the top and it wasn't playing ball, 7mm was too much to flex.

So, so tight. (Stop sniggering)

The chassis is powder coated though which is a couple of mil, so I sanded that back, which still left about 5mm to make up.

Luckily I own a hammer. So doing my best Jeremy Clarkson impression I did some light taps and just about got both sides inside the gap. From there, I could gently tap it further into place until it actually fit. Hurrah!

With a certain sense of accomplishment, I unboxed the drive shafts and temporarily slid those in and everything seems to turn like it's meant to turn and is decidedly more car like now.

Excuse the wonkyness of this picture, I was stood on a chair
with the camera above my head. Believe it or not, this was the
best of three photos.

Tunnel Vision

It's been about a million years since I've posted an update. To be fair, I've started a few posts (like this one), but not finished that section so held off posting. As a general update, progress has been very slow. I've been waiting for bits and generally stumped. There was soooo much I wanted to get done over the Xmas break, but in reality pretty much nothing happened. As a way to get things moving again, I visited the Road Track Race factory to check out a 99% complete Mevabusa that they had there. It was a very useful trip, and as always the staff there were very helpful (thanks Harry and Pete), who patiently answered my raft of imbecilic questions and let me take about a petabyte of photos. Anyway, work has started again...

__________________________

I thought I'd start work on the tunnel/centre console today while I was waiting for other bits. As per most things, I hadn't really a clue about what to do or where to start so I started with listing everything that I thought needed to go in the tunnel, so far I've come up with.

• Hot and cold water pipes
• Small pipe (don't know what this is for yet)
• Wiring loom
• Handbrake & cables
• Rear brake cables
• Clutch cable
• Throttle cable

That's quite a bit of stuff to cram in. There were a couple of pieces of criteria that I wanted to adhere to also. Firstly I wanted the tunnel to be easily removable, so nothing should be attached to the outer tunnel shell. Secondly, I wanted the tunnel to be flush with the floor. This might sound obvious but looking at pictures of other people's builds and some have it raised off the floor sitting on top the chassis. Having it raised is easier, you don't have to cut it around the chassis and you get 2.5cm more space in there.

The lower shelf

Part 1
I had a good think about how to approach it, what brackets to make and so forth. I decided to cut out a shelf which sits on the centre part of the chassis, this would allow me to fix other brackets and also attach the pipes to it directly.

The mock tunnel. I was careful to watch out for X-Wings

I had some off cuts of aluminium from the floor, so I made a 100cm long strip. I had some P-clips to fasten the pipes but I was wary that when the tunnel cover was in place that it wouldn't fit over the pipes so I made a mock up.

This showed that even without flexing the tunnel the pipes and P-clips would fit, held by a single bolt in the centre. Now it was time to put it in place.

The hot and cold pipes in place (sort of, they need to
move forward a little bit, but good enough for now)

It was easier than expected, I thought that I'd need octopus fingers to get the P-clips and the pipes together via a single screw but it wasn't too bad. This way I could use the same screws that I used to hold the shelf in place to hold the P-clips also (I don't know why I'm insisting on capitalising P-clips, the P is the same shape whether it's caps or not!).

Part 2
I held off doing any more work until I had the handbrake as depending on how that fitted, things might have to change. It's a good job I did as things need to change.

The problem was that the handbrake is about 2mm too wide to fit between the pipes. I thought about modifying the handbrake but it wasn't ideal and there was great scope for me needing to buy a new handbrake if I did that. I can't really move the pipes a little bit either way either because the frame is quite narrow, so a rethink was on the cards.

The solution was to mount the pipes vertically rather than horizontally, so I needed a bracket to do this. I settled on some 70mm right-angled brackets and then boggled on how best to fit the 3 P-clips together to fit in the space without crossing the centre line.

The mock bracket showing the P-Clip layout. The middle
hole on the bottom of the bracket is what attaches to the
middle of the shelf.

The solution was to attach one large P-clip and the smaller one to the bracket and the third would be attached to the shelf, but at different intervals so that the bits of rubber weren't fighting for space against each other.

This worked well when it was assembled and there was just enough room. The only adjustment I need to make is to get smaller bolts as the 15mm ones I was using stick out too far and foul the tunnel housing, so I'll get some 5mm ones which should do the trick.

The three pipes in place with the handbrake.

I tried the handbrake in place and it fits along the centreline also which is ideal, although it's not in it's final resting place, it proves that it'll fit there.

So that's one side of the tunnel done, the other side will use the same angle brackets but as it's 'softer' cables running there, it'll cope with going around the handbrake a bit easier.