Tuesday, 19 May 2015

The hood and doors

Getting the hood on is a stretch, literally. I am going to leave it in place like this for a few days in the hope that the vinyl will relax a bit.
The front-most poppers seem to take the most strain. I've assisted them with some gentle hand-cramps
(Heath Robinson hood hanger seen in the background)
The next job is to fit the remaining two fasteners on each side of the hood. This is pretty easy, and the positions are already marked faintly on the hood itself.


The doors are easy enough, but do take some care. When they say the metal frame inside the doors is hard, they mean it. I broke two drill bits getting through it.

But the doors fit beautifully once they're in place, and all the flaps seal each other up nicely. 


Thursday, 14 May 2015

Torquing up

The plan was to torque everything up at the end, as suggested in the Assembly Guide.

But I'm going to go back and edit my blog to point out where this approach doesn't really work.

For example, it's difficult to retighten the rear upper radius arms, as they are completely blanked off by the seats (in any position). The rear damper tops are hidden by my neat carpeting (though you can poke around behind this with an Allen key wrench). Also, the front top dampers are pretty much inaccessible at any time to any tool I can use to achieve a measured torque.

Rather than list them all here - that defeats the purpose! - I will try and point these out along the way elsewhere in the blog.

Sunday, 10 May 2015

Day 28: rear lights, boot carpet

The rear lights are pretty simple to sort out. The main issue is cosmetic - getting the lights nicely horizontal and lined up.
Trying to get everything nicely lined up. It ended up better than this, believe me!
 Apart from a blown brake light, everything worked fine when the connectors were clicked together on each side.

Boot carpets next. The contact adhesive can be messy here, so I used plenty of masking tape.


To get the carpet in place on the RH rear corner, around the fuel filler, I needed to remove the aero filler while the carpet was squeezed into place. Otherwise, it was all a fairly simple job, but as usual I plodded and tried to get everything neat and tidy. When all boot carpets are in place, it does look very cosy and smart!



Saturday, 9 May 2015

Day 27: rear wings, wing protectors

The engine is starting perfectly every time, but I'm still puzzled by how to get rid of the airlock in the radiator.
Symptoms: top RH (water in) is very hot. Bottom LH (water out) is cold. Bit by bit, I'm filling up the radiator via the top RH plug, and it seems to be taking more water this way, rather than via the normal filler tank at the back of the engine.

Rear wings 1: fitting wing protectors
These are so visible on the finished car that I wanted to get them as good as possible. There's nothing complicated about the job, it's just one of those perfectionist things.

I taped on the rubber piping around the stainless wing protectors, and decided to leave it in place. No real reason to remove it.
Reverse side of stainless wing protector. Rubber piping taped in place

You need to pre-bend the wing protector a little, so that it doesn't warp the wing itself, which is fairly filmsy GRP. I did this first around the car's tyre, but it needed a little more, so I used my leg!

Prebent stainless wing protector

The hardest thing is holding the wing itself, without damaging it. I set up a simple jig on my bench:


The large blue G-cramps hold a straight piece of scrap wood to the bench. The wing is then gently clamped to this using two black plastic quick-grip cramps. The straight edge helps you line up the wing protector snugly against the inside edge of the wing, too. Then, small hand-clamps are helpful to pull the protector down over the wing for riveting.

The riveting was fairly straightforward.

Next, I coated the insides of the wings with liquid rubber, as I did with the front wings.
Smelly, messy, but very effective once it's dry. It feels like a rubber sheet bonded to the inside!
Attaching the wings to the car is fairly straightforward. I recommend cutting the plastic strip before you fit the wing to the car (not the other way around, as the Assembly Guide recommends). That way, you're not messing around with sharps next to the paintwork and can just slide the strip in between the car and the wing.

The film comes off revealing nice stainless steel

Stainless polish is ordered... That exhaust guard should polish up nicely

Wednesday, 6 May 2015

Day 26: engine start!

The radiator plug arrived in the post today, so there was no excuse not to the start the engine!
I put in 20 l of fuel, and when turning they key, the bubbling and cavitation noises in the tank eventually settled down.
The immobiliser needed to be reset by disconnecting the battery for a few seconds. And it's still a bit hit-and-miss - I wipe the immobiliser fob around the wires surrounding the key barrel for a couple of seconds, and you get the satisfying 'click' and the dashboard red light goes out.


It started... first time! The engine note is surprisingly deep, considering the tiny engine.

There was enough oil already in the engine (which was a nice surprise), so I left it to warm up. Worryingly, the radiator didn't get hot at all, except for the top RH corner (where the inlet pipe is). I need to check if this is OK. There was plenty of heat in the heater, and the engine temperature gauge rose slowly to about 80deg. But somehow the main radiator remained cold.

A real sense of achievement today. Just a few jobs to go, and then off to Caterham for the Post Build Check. I have my IVA paperwork through from VOSA (only took a couple of weeks), so I am all set for the big IVA test.

Tuesday, 5 May 2015

Day 25: oils and brake bleeding

I intended to start the engine for the first time today. But... shortages got in the way. The bottom LH corner of the radiator is missing a drain plug. I hadn't even noticed it when I put it on the car, it's not mentioned in the Assembly Guide, and Derek at Caterham was surprised it wasn't there, as they usually just arrive in place.

Oh well. So, nevertheless, I filled the gear oil with about 1.3l, and the differential with about 1.5l. The gear oil is easily reached, although the drain hole is very hard to access.

Like many other builders, I made my own tool from a piece of 3/8" steel, gripped by an old 3/8" spanner.
Dremelling off a section of 3/8" square bar from an unwanted socket set 3/8"-1/2" convertor
Gearbox overflow tool. Narrow enough to get between the tunnel wall and the gearbox

The diff oil is best attacked from above, removing the wooden and honeycomb floors. However, now that the rollover bar is in place, I can't remove the honeycomb floor section, so just propped it up (covered in masking tape, as it is very sharp and easily could damage the paintwork).
Filling the diff oil



Brakes
Then onto bleeding the brakes. I went for the traditional 2-person method, rather than use my Eazibleed. No real reason, other than I wanted to work on it with one of my kids, who sat in the cockpit for ages pumping the brake pedal.

Couple of things worth mentioning:
- it takes a long time
- there are two bleed nipples on each front upright. I only remembered this when I removed the front wheels to see why things were not improving. I bled both
- as the bleeding process goes on, the handbrake starts to be able to move, having been jammed on in the lowest position earlier

I think the brakes are due another round of bleeding before I'm happy with them.

So now, I'm just waiting for:
- stainless rear wing protectors (wrong size delivered)
- radiator drain plug

Sunday, 3 May 2015

Day 24: seats

LATER EDIT: once you've put the seats in, you won't be able to retighten or torque up the upper radius arm, as the seats cover the inner end of the bolt completely!

I have the standard leather seats, which do look very smooth and comfortable. My kids have been using them as armchairs in their bedrooms since they arrive a month ago!
Ah... the smell of leather
The seats are fairly easy to fit. But things would have been much easier if I'd realised that the seat bottoms (the bit you put your arse on) come out.
Seat bottom removed, which reveals the runners, fixings and makes things much easier

Fixing the four bolts through the seat and out of the floor means getting your allen key into some awkward angles. OR... just lift the seat bottom out!

To try and make the floor a bit more watertight, I put a bead of clear silicone around each washer before fitting. As they tightened up, they ooze silicone out and also up the thread.
Edit: I've read elsewhere that making the floor watertight can cause problems when it rains. If the water can't drain out, then I can see what they mean. But I'll keep it as it is until it becomes a problem - easily fixed!

Seat washers, with bead of silicone sealant

Once it's all done, it looks fantastic!

Nice array of leather, vinyl and stainless steel (some covered on the steering wheel by tape)
Sorted. The yellow stickers were an addition by my younger son. Not sure if they are keepers...
Fitting the Moto-lita steering wheel is pretty easy. I had to move the upper steering column upward a little - which I should have done when I put it in. RTFM.

Next: fluids in, engine start!

Day 23: boot cover, harnesses

Fitting the boot cover is the kind of job that it pays to take slowly. Following the manual isn't difficult, but the order of things seems to be important.

I am fitting 4-point harnesses, so the following jobs needed to be done first:
- carpets in the cockpit
- boot cover, which also means fitting the hood sticks first (if you're going to fit the hood)

The need to fit the boot cover with hood sticks in place means that if you remove them, you run the chance of the cover looking baggy. But I wanted to keep the option.

Measuring up is the key here. I measured about 10x and cut once! Buy lots of masking tape before you start...

From L-R: fixing bolt, popper, bolt, popper x 2, bolt, popper, bolt!
The bolt positions are fixed by the chassis, but the poppers are up to you - the Assembly Guide tells you where to fit them.
Popper base fitted with self tapper, after a pilot hole is drilled in the chassis rail

The popper bases are easily fixed with self tappers. Once you've fixed all this through the vinyl strip already in place (see carpet fixing), then you're ready to fit the boot cover.

Fitting the hood sticks is easy, but they are sharp little buggers, so be careful of your paintwork.
Popper bases on, and harness fitting bolts in upside to mark exactly where they are

I also fitted the bolts the wrong way up (coming up from underneath), so their position is really easy to detect through the vinyl, once you've laid the cover over for measuring up.

Instead of the Durable Dot tool (eventually) supplied by Caterham, I borrowed a tool from a friend who's just finished rebuilding a Healey. It gives much more control - you squeeze instead of hammer!

Fitting poppers into the vinyl boot hood, with a borrowed tool

They squeeze together nicely
Once I'd done with the poppers, I fitted the boot cover, and then located the holes for the bolts to pass through (easily done as the bolts were pointing up through the chassis rail). I used a leather punch to make neat 12mm holes.

If you then remove the hoodsticks, it does look baggy and a bit unimpressive, compared to the nice taught, flat hood you've just created. So the hoodsticks will stay, possibly with some neoprene tape to prevent them grinding away at each other, and the paintwork.

Fitting the harnesses themselves should be a really easy job. They just bolt in place. But, when tightening up the bolts on the shoulder straps - the ones that go through the boot cover - I found they grabbed the boot cover and put an irritating twist in it. It pays to hold the vinyl firmly while someone else torques the bolts up. I even used a pair of pliers, to prevent it twisting under the fitting.
Happy helpers
Harnesses in place. It looks very nice, I have to say!
Next job, seats. After that, fluids in the engine, and press the starter button...

Saturday, 2 May 2015

Day 22: interior trim and tunnel top

This is a very satisfying job. The carpets feel great to the touch, and with a few careful sprays of Ever Build Stick 2, the rear bulkhead and tunnel sidewall carpets were easily fitted.
It's quite easy to overspray and make a mess, which isn't easy to clean up, but plenty of masking tape and the yards of bubble wrap lying around are useful! If you do find you've oversprayed, WF40 gently rubbed from a paper towel seems to remove it quite well. But be careful of the WD40 overspray too!

Rear bulkhead carpets

Slightly odd photo, but it's the top of the tunnel
The tunnel top, which feels beautiful by the way, is a bit of a pig to get in. The Assembly Guide tells you to get the handbrake vertical, but that's impossible, without unbolting it. Instead, I removed the heater baffle, which gives you just enough room. I did the following:
1. remove internal heater baffle/plate
2. slide tunnel cover over handbrake in its highest position, at a slight diagonal to where it should end up
3. manipulate the forward end of the tunnel around the wiring loom as it enters the large grommet on the tunnel
4. carefully prise open the tunnel cover where needed to let it slide down the carpets on each side of the tunnel