Codger Posted March 11, 2015 Share Posted March 11, 2015 I'm wondering whether those hoses are vacuum lines. Does the 4.5 use an autovac fuel pump? My Rolls P II does but is plumbed with hard line all the way. I'd guess vacuum on this application. Appears to only be hose clamped on. 1 Link to comment Share on other sites More sharing options...
toms111s Posted March 11, 2015 Share Posted March 11, 2015 Other engines I've seen had hard lines as well. I'm assuming the rubber hose in the photograph isn't original fitment and may be used for something other than fuel pump. Link to comment Share on other sites More sharing options...
Mothy Posted March 11, 2015 Share Posted March 11, 2015 It looks like the rubber is just a sheath for protection since there's no mechanical fasteners (just some twisted wire), otherwise it would blow them straight off. The No. 2 line is most likely 'boost' pressure sinced it's directly connected to the plenum. Link to comment Share on other sites More sharing options...
Brandy Posted March 11, 2015 Author Share Posted March 11, 2015 (edited) I've no idea what fuel pump it used. It appears that there's an electric one under the rear seat, but the header tank is on the rear of the firewall and remember the carbs are on the blower out in front and much lower so gravity alone should be sufficient to feed those.....although it may need a pump to maintain the pressure and sheer quantity needed....there's also a hard line just behind hose no.2 I've noticed there are 2 guages on the dash labelled "air" so I guess there could be a back-up boost guage.... Ian Edited March 11, 2015 by limeypilot Link to comment Share on other sites More sharing options...
Brandy Posted March 13, 2015 Author Share Posted March 13, 2015 (edited) A little more progress to post.... I started adding details to the carbs, but I'm not going to go further just yet as I've emailed a museum in the hope of getting pics of their car so I can do them properly. If they don't reply I'll just stick with whatever I make up, at least it will be better than nothing.   I have also added the drivetrain and rear end, adding the shackles I'd made previously, and more resin nuts! I discovered that I've fitted the left rear spring slightly off - it's sloped very slightly inwards, so the differential is centred with reference to the chassis rails, not the springs.    This job would have been a lot easier if I'd bought aluminium rod for the shackles instead of using the brass rod I had, and painting it.....lesson learned!  Finally, I've made a start on the clutch and brake pedals, and the mounting shaft. Airfix kindly provide the mounting points on the chassis rails, but once again, for no apparent reason, don't actually supply the shaft and pedals - they do provide little plastic blobs that bear no resemblance to the pedals - would it really have been too much effort to have done them properly?    I was hoping to make the pedals in one piece but the curve at the top end proved too much. Still, it should make it easier to put it all together if I add the end later. Thanks for looking in!  Ian  Edited July 16, 2017 by limeypilot 2 Link to comment Share on other sites More sharing options...
Rob G Posted March 14, 2015 Share Posted March 14, 2015 Direct action clutch - none of that faffing around with those new fangled wimpy hydraulics! Looks good Ian! Link to comment Share on other sites More sharing options...
Brandy Posted March 17, 2015 Author Share Posted March 17, 2015 (edited) I now have the pedals finished, with the exception of the actual foot pads at the end, which I will add when the bulkhead is in place. The top (bent) part is 1/32 aluminium rod, bent to shape. The plastic lower part was drilled and the rod was superglued in place, then finished with Mr Dissolved Putty to blend it in.  I've also finished the brake compensator. There are still 4 more actuators to make for the handbrake and front brakes, but there's not much more I can do on the brake system until I get the shock absorbers built and fitted, so that will be the next major job (I'm trying to find a good and reasonably priced source for the decals for those). That and making a start on the engine detailing, when I finally receive the hose fittings I ordered in September! I've been told they'll be here soon, so that should be a job for this weekend.         Ian  Edited July 16, 2017 by limeypilot 1 Link to comment Share on other sites More sharing options...
Codger Posted March 17, 2015 Share Posted March 17, 2015 (edited) Great work Ian. You've really got the discipline to wrestle every single detail you can out of this one. This will be a benchmark build for this old, seminal kit. My hat's off to you... EDIT: I like your work stand too! Edited March 17, 2015 by Codger Link to comment Share on other sites More sharing options...
Brandy Posted March 21, 2015 Author Share Posted March 21, 2015 (edited) Thanks Codger - no expense spared on that!   A little more done - throttle pedal and mounting, and the linkages for the front brakes.....         Thanks for looking in....    Ian  Edited July 16, 2017 by limeypilot 1 Link to comment Share on other sites More sharing options...
Codger Posted March 21, 2015 Share Posted March 21, 2015 All the linkages look really good- sharp and crisp. Paint in thin mists or try Rub n/ Buff to keep that 'cut metal' look... Link to comment Share on other sites More sharing options...
kpnuts Posted March 22, 2015 Share Posted March 22, 2015 Incredible detail work there, this really is a master class and very informative thanks, keep up the good work. Link to comment Share on other sites More sharing options...
Brandy Posted March 23, 2015 Author Share Posted March 23, 2015 (edited) Another day spent correcting Airfix's worst efforts..... the front shocks are almost done.  I trimmed the mountings, thinned (drastically!) the shock arms to leave just one of the 3 that should be there, then added the others from card. The upper should be 3 leaves and the lower, 2. The front shocks are almost done, next up are the 4 rear ones.    They're far from perfect but I'm not sure I can improve them without making them too weak, so I'll accept them as they are.  Ian  Edited July 16, 2017 by limeypilot Link to comment Share on other sites More sharing options...
krow113 Posted March 23, 2015 Share Posted March 23, 2015 I've got a pair of SU's off '50 Jag DHC sitting here , would pix of those help? Well done so far. Link to comment Share on other sites More sharing options...
xffw45343tg Posted March 23, 2015 Share Posted March 23, 2015 Great improvement to the shocks. Am I right in thinking they are just a friction sandwich, adjustable with the nut/bolt through the centre? Just one thing I noticed: On the left of the engine block there appears to be a unit with a shaft extending aft towards the flywheel. Is this an electric starter, and if so, shouldn't Airfix have included a pinion gear on the end of it? Presumably the starter also has a big fat electrical cable between it at the battery. Link to comment Share on other sites More sharing options...
Brandy Posted March 23, 2015 Author Share Posted March 23, 2015 Thanks for the feedback guys! Krow113, I'm not sure about the Jag carbs. The Bentley set up uses linkages, not cables, and it's the set up of those linkages that I'm looking for. I think I've sorted it out a little better, in that what I thought was fore/aft movement of the long link from engine compartment to carbs was actually rotational. That would work a lot better so if more detail doesn't emerge, that's the way I'll do it. Kirk, they are indeed friction plates. After "sleeping on it" I'm not sure I'll accept them, may look for another way.....and yes, there should be a pinion and electric cable fitted - I've already added the terminals, the rest will be added soon. Ian Link to comment Share on other sites More sharing options...
xffw45343tg Posted March 23, 2015 Share Posted March 23, 2015 Iirc, the kit flywheel rotates. For the ultimate real effect, a mobile phone "vibrate" motor would fit nicely inside the starter!! Link to comment Share on other sites More sharing options...
krow113 Posted March 23, 2015 Share Posted March 23, 2015 Thanks for the feedback guys! Krow113, I'm not sure about the Jag carbs. The Bentley set up uses linkages, not cables, and it's the set up of those linkages that I'm looking for. I think I've sorted it out a little better, in that what I thought was fore/aft movement of the long link from engine compartment to carbs was actually rotational. That would work a lot better so if more detail doesn't emerge, that's the way I'll do it. Yaya the Jag throttle is cable operated, thought the carb detail itself may have helped. No worries! Link to comment Share on other sites More sharing options...
roymattblack Posted March 23, 2015 Share Posted March 23, 2015 (edited) This is looking better by the minute. Some really great attention to detail. Can't wait to see it complete. Roy. Edited March 23, 2015 by roymattblack Link to comment Share on other sites More sharing options...
Codger Posted March 23, 2015 Share Posted March 23, 2015 This should help Ian. From a Pocher Alfa of the same timeframe. Photo courtesy the MMC site, parts by MMC, built by Andy Marks: Link to comment Share on other sites More sharing options...
Brandy Posted March 24, 2015 Author Share Posted March 24, 2015 Thanks Codger, that's exactly what I'm trying to come up with, but in 1:12 scale. I can't find anything available, but I'm starting to think I might need to commission a PE set and decals.... Ian Link to comment Share on other sites More sharing options...
Codger Posted March 24, 2015 Share Posted March 24, 2015 Thanks Codger, that's exactly what I'm trying to come up with, but in 1:12 scale. I can't find anything available, but I'm starting to think I might need to commission a PE set and decals.... Ian Naah...you can easily scratch that in .005" brass or pie pan ally (my fave) and a few styrene discs. DON'T spend for a PE guy to do those - you've shown you're easily good enough to scratch those. Just do it... Link to comment Share on other sites More sharing options...
toms111s Posted March 24, 2015 Share Posted March 24, 2015 My Dads got a book on the 4.5 blower, I'll have look if there are any detail photos of the carbs and supercharger set up. There are drawings the BDC Technical notes as well, I know there is one for the supercharger but I can't remember if it shows the carbs and their linkages. Next time I go to his house I will have a look. Link to comment Share on other sites More sharing options...
xffw45343tg Posted March 24, 2015 Share Posted March 24, 2015 My Dads ... How many have you got? Link to comment Share on other sites More sharing options...
Aginvicta Posted March 24, 2015 Share Posted March 24, 2015 You are certainly adding some amazing detail to this build Ian, Andy Link to comment Share on other sites More sharing options...
toms111s Posted March 24, 2015 Share Posted March 24, 2015 How many have you got? Just the one, I think Link to comment Share on other sites More sharing options...
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