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Dec 21, 2022 22:46:12 GMT
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I had a productive day at work today  Feeling quite chuffed at the housing with it tacked together. Top view;
 and bottom;  I WAS feeling chuffed until I tried it in the car  The vent hole in the base was still right over the exhaust  curse word. Cardboard shows wher the exhaust tube goes over the hole (on wrong side here as i'm a numpty and I'd taped it on the opposite side) With the cardboard taped on the correct side  and a few different ideas it's ended up like this. The angled part will need to be made a lot longer to extend beyond the bottom of the housing where it will have an adaptor made to suit the round tubing. It covers more of the inlet than I would like but does not seem to significantly alter the airflow.  Looks like a MkIII version might get made tomorrow..........  |
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eurogranada
Europe
To tinker or not to tinker, that is the question...
Posts: 2,556
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Lovely fab work. Even if you have to go through several iterations...
Great to have such facilities!
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Nice to see how your car is evolving as it gets used in all conditions - neat fab work as ever!
PS....Wishing you a very Merry Christmas
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Dec 22, 2022 10:56:50 GMT
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Alex,
Yes it's a dream come true to have my own company that has the tools & tech I need to fab stuff up. I'm very lucky.
Phil,
Thanks and Merry christmas to you and all of the readers of this thread.
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Dec 22, 2022 11:50:50 GMT
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Merry Christmas !
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Dec 22, 2022 18:01:28 GMT
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MkIII version completed (ish) The wiring will be replaced with more flexible wire with proper sheathing and a weatherpack connector.  I managed to put a small extra angle at the top of the tubing, so it's left a good amount of the fan entry clear. Flow seems good with it all fitted.  It needs a little bit more internal bracketry for fixing the 2 halves together which I'll do tonight, but the good news is it all fits  yes! The tube will get an extension/(possible adaptor for round tube) to get the air intake lower but I might just try it for now as it may already be low enough to not get engine fumes in the car. |
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Dec 23, 2022 12:09:21 GMT
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Very nice ,mark , could you connect to the inlet underneath and run a flexible pipe along the chassis to where the old heater was , then have a big air inlet there to ram air into the heater ?
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Dec 23, 2022 15:38:21 GMT
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Loving how this has got way out of hand! Nice fab work.
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Dec 23, 2022 15:41:37 GMT
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Robert, I'm trying to get rid of all the flexible hoses, lol! In reality it will be fine where it is - as long as it does not pull in engine fumes is all that really matters. It is now finished in terms of construction. It will be painted in BMW silver to match the rest of the silver in the engine bay. I need to get some more stainless 4mm button head bolts to replace the temp Philips screws.  Ducting welded to the cover;
top clamps.
 Propped up in roughly the right place in the engine bay. Hopefully over the Christmas break I can pull the bulkhead out and fit it properly. I need to relocate the screenwash bottle as well now.
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Dec 24, 2022 21:08:13 GMT
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Having done all the Christmas shopping I had some time in the garage today so I thought I'd get the firewall out. Fortunately I built the car so all the panels are removable, unfortunately it does require a lot of other parts to be removed to get the firewall out. That would be; Seatbelts, seats, gearbox tunnel, steering column, fuel line, brake reservoirs & piping, gearbox dipstick, throttle cable, ignition units & fuel regulator.  Dashboard access panel removed,
 Firewall loosened off,
 I cant get it right out just now as I built the steering column wiring so it can all pass through the bulkhead connector hole - sadly the immobiliser was added afterwards for the BIVA test and this cannot pass through. I'll have to cut this off and re-wire it in the next few days to get the firewall right out.  It does give me a chance to freshen up a few things - the brake fluid reservoirs I had overfilled so they had leaked on the pipe fixings and damaged the paint, I can strip this off and probably polish the aluminim brake fixings rather than repaint as it will be easier. I might look at the immobiliser as it's a pain to use and was only fitted for IVA but it's also nice to have - if I can move the key socket to somewhere accessible (it's a bit of a reach to get to) it would be more user friendly. With the firewall out I can give the back of the engine a good clean at least. |
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Dec 26, 2022 18:58:27 GMT
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Had an unexpected garage day today. We were meant to be going down to my mums with my sister for a Christmas dinner on Boxing day but she cancelled it as she is not very well. We have a freezer full of extra food now! So wires cut and firewall out. Time to start drilling;  Lots more drilling later it was mostly done.  Tidied up the edges & drilled the fixing holes.
 And all the cut edges primed and the lower section now with an inner blanking panel to keep all the air going where it should do.  Heater housing now primed.
 The leaking brake fluid reservoirs have caused more paint damage than I realised, the ally brackets are now stripped of paint and polished up like chrome. The bulkhead was also damaged, so the bad paint got cut out with a razor blade and the areas thoroughly cleaned. They are touched in with silver paint with a brush for now. I'll lower the fluid level in the reservoirs as I had them filled almost to the brim. I guess racing with the hard G's off the startline spilled fluid out of the breather holes in the top. I'll need to keep an eye on this in the future to avoid any further paint damage.
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Robert, I'm trying to get rid of all the flexible hoses, lol! In reality it will be fine where it is - as long as it does not pull in engine fumes is all that really matters. Ah Gotcha , good thing is , if it is fumey , you can always add a bit of shiny ally piping going off somewhere with fresh air . |
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427za
Part of things
Posts: 32
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Dec 27, 2022 11:07:00 GMT
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“Not quite as pretty as it would have been if I had designed into the initial build, but hopefully I can strip off the plastic housing and make one in aluminium to blend in better (maybe making it a little smaller at the same time).” To you this may not look so pretty but, to the rest of us mere mortals, we’d be over the moon to produce something so well thought out and quality looking! As inspiring as ever, keep up the great work  |
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Dec 27, 2022 12:38:39 GMT
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Robert, I'm trying to get rid of all the flexible hoses, lol! In reality it will be fine where it is - as long as it does not pull in engine fumes is all that really matters. Ah Gotcha , good thing is , if it is fumey , you can always add a bit of shiny ally piping going off somewhere with fresh air . Exactly Robert. The plan is to extend the inlet down a few more inches so it pulls air from under the car. I'll try it as it is as it may be low enough already - testing will tell. |
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Dec 27, 2022 21:26:33 GMT
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Another afternoon in the garage today, my new deisel heater making it quite pleasant - 15 degrees. Heater casing is now painted;  Then it was time to start stripping out the old heater, now you see it;  Now you don't - all that space! The two rear fixing platforms will be ideal for the oil cooler fixing. The front one can be for the front number plate.
 I've mentioned the brake fluid damage to the paint, this is the worst bit on the inside of the bulkhead - hidden by the trim. It leaked in via the cable gland (big hole where I cut out the discoulored clearcoat) and a ring round the column flange (column flange undamaged - black paint must be more brake fluid proof). The black bits are velcro for holding the trim to the panel.
 On the engine side the brake pipe fixing blocks were painted as was the reservoir block. The paint on these was wrinkled so I took the easy option of stripping them and just polshing them instead. The bulkhead paint is undamaged but is a little discoloured.
 I cut off the damaged paint around the cable gland and just touched that in with a brush. Luckily the silica heatproof coating (the textured finish) was completely undamaged.  The wiring for the immobiliser is now sorted, annoyingly I have run out of male pins for the weatherpack connector so I'll have to wait till the new year to source new ones. Moving the heater hoses has shown I need some extra AN10 connectors as well as some new AN10 Aeroquip hose - which is fairly hard to find now? Anyone have about 18" of AN10 stainless braid hose laying around?
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Dec 28, 2022 11:30:29 GMT
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So I know very little about automotive aerodynamics but are there any problems trying to get air from under the car for the heater? not picking faults just trying to learn!
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Dec 28, 2022 12:03:05 GMT
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It's a fan, it sucks in air, lol It doesn't care where it sucks it from. It's completely different from a cooling radiator where airflow is important, it would need some form of ducting if that were the case. |
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bstardchild
Club Retro Rides Member
Posts: 14,975
Club RR Member Number: 71
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Dec 28, 2022 15:15:21 GMT
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It's a fan, it sucks in air, lol It doesn't care where it sucks it from. It's completely different from a cooling radiator where airflow is important, it would need some form of ducting if that were the case. If you position the inlet in the right place you can end up with a venturi generated vacuum and then it'll have to fight against that  I thought placement of ventilation inlets were always in a high pressure area so they still work even when the fan isn't running?? |
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Dec 28, 2022 15:51:52 GMT
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Moving the heater hoses has shown I need some extra AN10 connectors as well as some new AN10 Aeroquip hose - which is fairly hard to find now? Anyone have about 18" of AN10 stainless braid hose laying around?
Hi blackpopracing, Mark, if it's PTFE hose you are looking for I have about 700mm you can have. It came from Torques. |
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Proton Jumbuck-deceased :-(
2005 Kia Sorento the parts hauling heap
V8 Humber Hawk
1948 Standard12 pickup SOLD
1953 Pop build (wifey's BIVA build).
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Dec 28, 2022 18:02:23 GMT
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Moving the heater hoses has shown I need some extra AN10 connectors as well as some new AN10 Aeroquip hose - which is fairly hard to find now? Anyone have about 18" of AN10 stainless braid hose laying around?
Hi blackpopracing, Mark, if it's PTFE hose you are looking for I have about 700mm you can have. It came from Torques. Is that the std stuff that normal aeroquip fittings go on Paul? |
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The vent hole in the base was still right over the exhaust 
curse word.
and a few different ideas it's ended up like this. The angled part will need to be made a lot longer to extend beyond the bottom of the housing where it will have an adaptor made to suit the round tubing. 
yes!
