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by simmit
Sat Nov 18, 2017 7:48 pm
Forum: Wanted
Topic: Voltmeter, Middlebridge.
Replies: 6
Views: 161

Voltmeter, Middlebridge.

philhoward wrote:
Sat Nov 18, 2017 6:59 pm
I think these are VDO moving coil meters, rather than bimetallic like the Smiths ones?
Certainly it's VDO and I'll take your word Phil that it's moving coil.
Unfortunately the ones on ebay have red needles and I need white to match other instruments.
by simmit
Sat Nov 18, 2017 12:12 pm
Forum: Wanted
Topic: Voltmeter, Middlebridge.
Replies: 6
Views: 161

Voltmeter, Middlebridge.

Try HERE or HERE Hope that helps. :D Hi Will. Thanks for links. First link is good and found same outfit actually sells on UK Ebay at £29.99 inc post, which seems good price. Comes in from Latvia which is EU country so ought be safe! Before ordering shall check to see if it is really a faulty gauge...
by simmit
Wed Nov 15, 2017 10:00 pm
Forum: Wanted
Topic: Voltmeter, Middlebridge.
Replies: 6
Views: 161

Voltmeter, Middlebridge.

Voltmeter temperamental! Anyone have a spare one taking up too much room?
by simmit
Wed Nov 08, 2017 7:02 pm
Forum: Middlebridge
Topic: Heater hose connections, which way round?
Replies: 20
Views: 1524

Heater hose connections, which way round?

Thank you gentlemen for confirming there is no valve. The Middlebridge parts book actually shows a valve and that completely threw me.

Only question remaining:- Is 30 degree flap movement on MB50 typical?
by simmit
Tue Nov 07, 2017 9:36 pm
Forum: Middlebridge
Topic: Heater hose connections, which way round?
Replies: 20
Views: 1524

Heater hose connections, which way round?

To improve the heater you need to remove it and strip it. The foam on the flaps will have turned to dust by now and needs replacing. You could take the opportunity to replace the matrix too. Makes no difference which way round the pipes go, it is just the convenience of hose routing. But is it typi...
by simmit
Tue Nov 07, 2017 6:39 pm
Forum: Middlebridge
Topic: Heater hose connections, which way round?
Replies: 20
Views: 1524

Heater hose connections, which way round?

It would appear they reverted to a heater valve on the Middlebridge though valve.jpg Or did they? Although the MB Parts Book shows a valve MB50 seems not to have one in the hose run. Rather, the Hot/Cold lever control cable appears to operates an airflow flap valve (see photo) is this typical? Also...
by simmit
Wed Nov 01, 2017 9:07 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

The relays are required because you need changeover contacts to do the series / parallel. You only have N/O on the switch, so you use that to operate the relays. Blowers are 4" with stepdown adapters to match the hoses. Thanks AJ. I think I know what you mean about the switches but will need to sit...
by simmit
Wed Nov 01, 2017 7:42 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

http://www.scimitarweb.co.uk/sgwrs/viewtopic.php?t=16963&start=390 Nice one AJ. What size blowers did you use, 3" or 4"? The car wiring diagram suggests, to me, the blowers are run parallel. Simply that in one configuration they have resisters in line and in the other they do not. No relays are use...
by simmit
Wed Nov 01, 2017 7:25 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

philhoward wrote:
Wed Nov 01, 2017 7:20 pm
Not knowing the bilge blowers, check they aren’t brushless first.
Will do.
by simmit
Wed Nov 01, 2017 7:12 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

AJL Electronics wrote:
Wed Nov 01, 2017 6:40 pm
The simplest solution is just to wire them in series / parallel.
Not sure what you mean! Are you suggesting a two position switch (which is standard fitment on the car) and wired so that in first position the motors are in series and in the second position they are paralleled?
by simmit
Wed Nov 01, 2017 7:08 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

This one from Amazon might work? No idea how long it might last and you might need to ensure it has some supply of cool air to it (or at least not be enclosed)? Thanks Phil for pointing me in the right direction. How about:- https://www.ebay.co.uk/itm/Motor-Speed-Control-MAX-1500W-DC-12-50V-30A-PWM...
by simmit
Wed Nov 01, 2017 6:26 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

philhoward wrote:
Wed Nov 01, 2017 6:01 pm
The simplest method is resistors especially as the wiring is there in the first place. First question would be what power does the bilge blower take?
Each bilge blower runs 6A (it is said) so I suppose that gives 72W each and total of 144W.
by simmit
Wed Nov 01, 2017 5:48 pm
Forum: General Technical Discussion
Topic: variable speed heater blowers
Replies: 13
Views: 277

variable speed heater blowers

Shall be replacing both heater blowers with 12V bilge blowers (resister winding broken and steel casing rotted away on original blowers). Original blowers are two speed and bilge blowers will be single speed. So, any ideas for a suitable variable speed switch that can be put in the circuit to both b...
by simmit
Thu Oct 26, 2017 1:37 pm
Forum: General Technical Discussion
Topic: LED bulbs for dash panel instruments
Replies: 35
Views: 1172

LED bulbs for dash panel instruments

Bear in mind my car is Middlebridge having VDO gauges and Smiths switches whereas Reliant used Smiths throughout. There may be differences! For Middlebridge:- 1 x 5 switches, BA7S type bulbs 1 x 1 clock, BA7S type bulb 1 x 4 instruments, BA9S type bulbs 1 x 1 tacho, BA9S type bulb 1 x 2 speedo, BA9S...
by simmit
Wed Oct 25, 2017 4:19 pm
Forum: General Technical Discussion
Topic: LED bulbs for dash panel instruments
Replies: 35
Views: 1172

LED bulbs for dash panel instruments

I cannot find them although I have only had a quick look - let us know where you got them from - after you tested that they fit of course. See:- http://www.ebay.co.uk/itm/2X-WHITE-BA7S-LED-DASHBOARD-GAUGE-WARNING-SWITCH-BULB-CLASSIC-CAR-GLB281-LLB281/181751564689?ssPageName=STRK%3AMEBIDX%3AIT&_trks...

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