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If you replaced more or less the complete brake system, as you did, you might consider DOT5, full synthetic brake fluid. This is not hyroscopic (sucking moisture up) and does only have to be changed very rarely (I never believe life-long fill quote's). Thom Morning Thom, thank you for that. I will be buying fresh brake-fluid. My very handy and capable assistant 😉 nickwheeler and I will look at the alternatives available. I was not aware (never needed to be) of DOT5 before. And you are right, the stuff written up, often needs to be believed with caution. |
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Forgot to mention. Basic, first fit and it seems the side panels and vents will speak to each other in the final fit.  Fingers crossed they do when the dash goes in as well and final screw together happens. . Been thinking inside the box again. The plan all along was to fit an inline tap or control valve in the heater hose from the engine. BUT……. Then I started wondering, would it really make any difference if the coolant just circulated through the heater matrix permanently And if one used the blower to push air through it onto your feet only when you wanted hot air to circulate there. That way, you never interfere with the circulating volume or thermostat where it passes by. Do keep in mind, this is a good weather, open topped, and essentially no doors, car. |
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jamesd1972
Club Retro Rides Member
Posts: 2,920 
Club RR Member Number: 40
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If the heater box has no ram air effect from a bonnet grill air feed can’t see a problem running it like this. If it causes any issues you can easily fit a taxi valve to bypass the hot flow.
Only issue I can see is a build up of heat on a hot day if in there for a long run. In my MX5 long drives in hot days could get pretty uncomfortable with heat soak - get stuck in traffic and you roast so the option to circulate cold air in the footwell might be desirable. Suspect more open cockpit and short fun blasts not long runs would make this a small advantage.
James
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glenanderson
Club Retro Rides Member
Posts: 4,347
Club RR Member Number: 64
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I run the heater in my Land-Rover permanently open. Even on a hot day it’s not a problem.
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My worst worry about dying is my wife selling my stuff for what I told her it cost...
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thomfr
Part of things
Trying to assemble the Duett again..
Posts: 691
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I run the heater in my Land-Rover permanently open. Even on a hot day it’s not a problem. Yes Glen, but you are a class of your own being a hard core all year round classic Land Rover driver! I raise my hat! ;-) Thom |
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73' Alfa Giulia Super
64' Volvo Duett
65' Volvo Duett
67' Volvo Amazon 123GT
09' Ford Focus 1.8
20' VW ID4
71' Benelli Motorella
65' Cyrus Speciaal
The difference between men and boys is the price of their toys
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pptom
Part of things
Posts: 475
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Neither the midget or elan have a valve on the heater system.
The Elan's matrix is in the cabin and is supposed to have flaps which seal off the flow of air, but it does get hot, although I think it's mainly engine and gearbox heat. Even when set on cold it puts out a bit of warmth, it has got a roof though
The midget has the matrix in the engine bay and I've never felt any heat from it without the fan on, similar setup too - roof off, fun car.
Keep it simple...
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Last Edit: May 5, 2022 19:30:39 GMT by pptom
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If the heater box has no ram air effect from a bonnet grill air feed can’t see a problem running it like this. If it causes any issues you can easily fit a taxi valve to bypass the hot flow. Only issue I can see is a build up of heat on a hot day if in there for a long run. In my MX5 long drives in hot days could get pretty uncomfortable with heat soak - get stuck in traffic and you roast so the option to circulate cold air in the footwell might be desirable. Suspect more open cockpit and short fun blasts not long runs would make this a small advantage. James That heater box and blower are all a “closed system” the blower sucks in air from essentially the footwell and under dash area to push over the matrix. I am prepared to risk some heat build up at this point. I run the heater in my Land-Rover permanently open. Even on a hot day it’s not a problem. Sounds good to me Glen. I run the heater in my Land-Rover permanently open. Even on a hot day it’s not a problem. Yes Glen, but you are a class of your own being a hard core all year round classic Land Rover driver! I raise my hat! ;-) Thom Glen is certainly hardcore. 😉 Thankfully, as it gives softies like me something to aspire to. Neither the midget or elan have a valve on the heater system. The Elan's matrix is in the cabin and is supposed to have flaps which seal off the flow of air, but it does get hot, although I think it's mainly engine and gearbox heat. Even when set on cold it puts out a bit of warmth, it has got a roof though The midget has the matrix in the engine bay and I've never felt any heat from it without the fan on, similar setup too - roof off, fun car. Keep it simple... I think this will be keeping it extremely simple. I like that. Reply on MX5 Nutz forum copied and pasted. Grizz said: I started wondering, would it really make any difference if the coolant just circulated through the heater matrix permanently thats how Mazda designed the Mx5...Grizz said: That way, you never interfere with the circulating volume or thermostat where it passes by. ^^This.you can buy recirculating heater valves (I bought one) that give the option of bypassing the heater but allowchoice of hot or cold blown airwww.ebay.co.uk16mm (5/8") Metal Bypass Heater Control Valve For Classic Car Taxi TX2 Kit Car | eBay Also fits Kit Cars. 16mm (5/8") TX2 Bypass Heater Valve - push to bypas. Hose Size： 16mm/ 5/8". Construction：Zinc Plated Steel. Classic Car PartYes. Manufacturer Part NumberM335-H38C-5104-000-M. Other Part NumberH38C-5104-000-M. www.ebay.co.ukas example (y) Rich |
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Funny how a gentle bollocking from the contracts manager and boss can be a blessing in disguise.
I had an evening meeting a while ago, which usually allows for some time returned in lieu.
I never bother taking the time back because I believe in swings and roundabouts….
Had a two day business meeting this week and both managers were in the room and time returned came up.
Seems I have time owing. And we are expected to take time back (I guess they don’t want finger pointing from anyone)
Nice…….
Lets see what I can get done inbetween doing some work stuff.
I hear the vinyl and contact glue calling.
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Last Edit: May 6, 2022 8:29:30 GMT by grizz
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I run the heater in my Land-Rover permanently open. Even on a hot day it’s not a problem. My Marlin doesn’t have a heater, but there’s so much heat transmitted through the bulkhead that feet are always warm. |
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If you replaced more or less the complete brake system, as you did, you might consider DOT5, full synthetic brake fluid. This is not hyroscopic (sucking moisture up) and does only have to be changed very rarely (I never believe life-long fill quote's). Thom Morning Thom, thank you for that. I will be buying fresh brake-fluid. My very handy and capable assistant 😉 nickwheeler and I will look at the alternatives available. I was not aware (never needed to be) of DOT5 before. And you are right, the stuff written up, often needs to be believed with caution. Don't anyone tell him about DOT5.1!! |
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Morning Thom, thank you for that. I will be buying fresh brake-fluid. My very handy and capable assistant 😉 nickwheeler and I will look at the alternatives available. I was not aware (never needed to be) of DOT5 before. And you are right, the stuff written up, often needs to be believed with caution. Don't anyone tell him about DOT5.1!! The thing is, that he has such a bloody encyclopaedic knowlege of a massively wide range of stuff that he probably knows already. Hence saying that I wait for his opinions in most things and find myself often saying to him to explain to me so that I understand. Guys like nickwheeler , glenanderson Rich and others have so much knowledge and experience that I tend to just absorb and learn from them. I can do some stuff but a load of the guys on here, post posters and non posters blow my mind most of the time. I learn loads from other threads too. . |
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Last Edit: May 6, 2022 17:03:59 GMT by Rich
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Loads if day job stuff done, customers, emails, calls etc. Managed to pull some mangled shrubs out and cut the front hedge for the first time this year.  Late afternoon I went down to the garage after some water feature cleaning and repairs. Started and completed the small side panels.  One done. Happy.  And a pair of them done.  Sneaky photography. Enough. Weekend ahead. |
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Loads if day job stuff done, customers, emails, calls etc. Managed to pull some mangled shrubs out and cut the front hedge for the first time this year. ….. Sneaky photography. Enough. Weekend ahead. nice work Grizz  I'll check in over the weekend for my "team Grizz" fix  have a great weekend |
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Last Edit: May 7, 2022 8:17:39 GMT by Rich
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thomfr
Part of things
Trying to assemble the Duett again..
Posts: 691
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Morning Thom, thank you for that. I will be buying fresh brake-fluid. My very handy and capable assistant 😉 nickwheeler and I will look at the alternatives available. I was not aware (never needed to be) of DOT5 before. And you are right, the stuff written up, often needs to be believed with caution. Don't anyone tell him about DOT5.1!! Stolen somewhere: A DOT 5 brake fluid does not absorb moisture and does not affect painted surfaces, making it ideal for high-performance vehicles. Using this brake fluid protects the braking system from the effects of bad weather. DOT 5 can be used as a replacement for DOT 3 and DOT 4; however, it should not be mixed with any other braking fluid. OT 5.1 is not a revision of DOT 5, as is commonly believed. DOT 5.1 is a mixture of borate ester and polyalkylene glycol ether, a silicone-based product. In comparison to other DOT braking fluids, 5.1 brake fluid can withstand higher temperatures without becoming sticky. It has better performance than any other DOT brake fluid and can sustain greater dry and wet boiling temperatures. It is compatible with all glycol-based braking fluids but not with DOT 5. |
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73' Alfa Giulia Super
64' Volvo Duett
65' Volvo Duett
67' Volvo Amazon 123GT
09' Ford Focus 1.8
20' VW ID4
71' Benelli Motorella
65' Cyrus Speciaal
The difference between men and boys is the price of their toys
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jimi
Club Retro Rides Member
Posts: 2,206
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You forgot 500ml dot 5 = £20, 500ml dot5.1 = £7 Both available at various prices but on average Dot 5 is much more expensive and you need to make sure your seals are compatible and be sure to flush any existing fluid out of the system. |
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Last Edit: May 7, 2022 12:57:25 GMT by jimi
Black is not a colour ! .... Its the absence of colour
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I run the heater in my Land-Rover permanently open. Even on a hot day it’s not a problem. Conversely, on a cold day it does nothing. Not apples to apples. If I put the heater on to blow through on a warm day here the cabin, with all the windows open, gets uncomfortably hot. However, with it set to hot and the vent closed it's fine. |
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You forgot 500ml dot 5 = £20, 500ml dot5.1 = £7 Both available at various prices but on average Dot 5 is much more expensive and you need to make sure your seals are compatible and be sure to flush any existing fluid out of the system.  None of the purported Dot5 advantages apply to the Rockit, especially when the price is taken into consideration. All that's needed is some fresh Dot3, and 15minutes every 3 or 4 years flushing it. |
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jimi
Club Retro Rides Member
Posts: 2,206
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Price alone would rule it out for me (unless perhaps racecar) as you say not hard to flush it through with fresh fluid every few years. Also a leak/bad seal and resulting fluid loss is cheap to replace.  |
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Black is not a colour ! .... Its the absence of colour
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I'm in the fill it with dot 3 or 4 and flush it every 2 or 3 years camp, It's what it was designed for (and virtually all modern cars still use) it's cheap and flushing it through keeps the bleed screws free.
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