Monday, 22 June 2015

Cooling fan and other bits

Cooling Fan - In the last couple of weeks I've fitted the cooling fan, a 16" curved fan, 2000 cfm (apparently these are quieter than the straight blade - not sure it matters with a V8 running). I've also trial fitted an adjustable thermostat as suggested by AK, I'll have to wait until the body is on again before I settle on a permanent position as I need to know what is accessible.


Exhaust Brackets - Having trial fitted the exhausts and adjusted / located the brackets on the chassis these have now been welded in place - thanks to Stuart for his welding gear and expertise. The brackets are in the process of being painted with POR15.


Heater Fitted - Finally I got round to fitting the heater to the body. The air is drawn into the heater on both sides via ducts into the foot-wells, avoiding the issue of taking air from the engine bay. I've added a stainless steel cover to bring it in line with the rest of the engine bay.

I've also put the engine oil (15/40 mineral - recommended by the engine builder) and gearbox oil (Dexron III). I want to run the engine for a quick trial and confidence test before I fit the body so have started to think about the wiring I'll need, plus an oil pressure gauge and of course the battery.

And one other job that I've come to terms with. I originally fitted 'push-fit' brake pipe clips, I think these look much tidier, but I'm concerned that some are a little loose and move a couple of mm, I don't think they'll come out but I'm not happy and neither will the IVA man! So I've decided to swap them for P-clips, not as tidy but they are secure. That leaves me with an issue; the holes drilled for the push fits are 6mm, I could tap this for an M8 but too big for the P-Clip so I'll have to use rivnuts. I'll take pictures for the next update.

Monday, 8 June 2015

Exhaust & Starting to prep the body

Exhaust Side Pipes- During the week I had a trial fit of the exhausts. Fitting the headers took a little bit of fettling as the holes don't line up perfectly with the holes in the heads. Initially I put some manifold studs in but the holes are too close to the pipes to allow the nuts to turn, so had to put some Allen headed bolts in (I only had black and will need to swap these for some shiny ones). I checked all the clearances around the ancillaries, HT leads etc and all was good. Then I fitted the side pipes, using a jack to support the weight and a rubber mallet to "encourage" the pipes onto the headers. It's a tight fit and takes a while to get it right.I set it up with 85 mm gap between the side pipe and the chassis and with the pipe parallel and level to the chassis I offered up the mounting brackets. You have to bend these brackets to suit the location of the bobbins and this is no mean feat as the brackets are 5 mm steel and are not big so there's not much leverage, I ended up using hydraulic press to get the adjustment. Here's the resulting near-side fitting:

Exhaust Trial Fit
With the brackets G-clamped in place and marked up, the side pipes came off again. I'll need to get the brackets welded onto the chassis and I'm another step closer to fitting the body. Oh, and I also made up some templates from card that I hope to use when cutting the body to accept the pipes.

Some Body Preparation - The sun was shining on Sunday so I took the covers off the body, removed the earwigs that were squatting in there. It's great to be able to work outside, daylight means I don't need my glasses but on the down side wearing only a T-shirt while working on fibre-glass means picking loads of irritating splinters. I tidied up the hole I'd made for the fuel tank pipe and expanded it out a bit. I also cut the hole for the gear lever and trial fitted the heater. As mentioned before, I've had to modify the heater to take the air from inside the car rather than the engine bay. The trial fit went well but the bolts I had were too long, I'll re-fit as soon as I get some decent bolts and post some pictures.
Gear lever & Heater Access

Fuel Tank Access


Monday, 1 June 2015

Power Steering Pump, Cooling & Prop Shaft

Power Steering Pump
Power Steering Pump - Several tasks ticked off the list in the last couple of weeks. Now that the engine was in I could fit the power steering pump. On the face of it a simple task, but as always there was a catch. There are two mounting points, one is an adjustable bracket that bolts to the cylinder head - no problem, the other is a long bolt that passes through the water pump allowing the PS pump to pivot for adjustment. The hole in the water pump has been drilled and tapped with a 3/8" thread and won't take the 10mm bolt supplied with the PS pump. On advice from the factory I drilled out the water pump to accept the 10mm bolt but as the pump sits in front of one of the chassis members I couldn't get a drill square on and had to remove the water pump. There are two pipes supplied that connect the pump to the rack, the fittings on the rack have different threads so they can't be mixed up.

Cooling System
Cooling System - Next job was to complete the plumbing. I started with the header tank, drilling & tapping a couple of holes in the top front chassis member. The radiator is mounted with a couple of brackets supplied by the factory, the only challenge was to find a couple of rubber plugs to fit onto the pegs at the bottom of the radiator. I tried some grommets but they weren't good enough. But by accident I found the rubber bungs, supplied on the pipes for the heater matrix, were perfect - job done. I decided on black silicon hoses, I wanted a neutral color in the engine. I may put steel braid on these later - I'll see how I feel as the build develops. By the way I was looking for a good way to get a near perfect finish when cutting the pipes. I found the best way was to use an O-ring, just tight enough to grip the pipe and then use this as a guide for a sharp knife. This gives a good finish and a square cut. You have to rotate the O-ring 180 deg half way through to avoid the screw.

Prop shaft - The prop shaft arrived PDQ from Bailey Morris, they gave a great service and were very helpful on the phone. This fitted exactly as I had hoped. I had to remove the bung that sits on the output shaft of the gearbox, it's on very tight and you have to be careful not to damage the oil seal that sites outside the shaft.
Prop Shaft Fitted