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Nissan Micra heater fan and motor Print
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ahebron
September 18, 2017, 6:33am Report to Moderator


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After reading a few articles on fitting a Nissan Micra heater motor and fan I decided to give a go.
First off get your motor and fan.
No idea what year or model, the local Nissan wrecker had a choice of two and I chose this one.
The other one was identical size but slots instead of holes and was silver colour.

I have no idea what the dalek hose is for so I might just remove it and put a bung in the remaining hole.

Adrian



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Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
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ahebron
September 18, 2017, 6:35am Report to Moderator


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Then cut a huge hole in the lid of your heater box.
I used my air nibbler, hand nibbler, finger file, angle grinder with flap wheel and nogging tool to get this job done.
Not much metal left on the car left edge of the lid.



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Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
2003 FFRR TD6 HSE
2014 VW Amarok Highline 4Motion
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ahebron
September 18, 2017, 6:37am Report to Moderator


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I also needed to remove a bit of metal form the internal baffle in the heater box and I put the fan into my lathe to remove a little bit of plastic from the bottom lip for clearance



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Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
2003 FFRR TD6 HSE
2014 VW Amarok Highline 4Motion
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ahebron
September 18, 2017, 6:47am Report to Moderator


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I made a mount for the car left side. I could have cut the fan body down but it would have looked odd to me.
I wanted this to look like it was built for the car as much as possible.
I drilled and unf rivnutted the mounts into the lid of the heater box first and got the clearances right for the running of the fan. To do this I over drillled the holes in the motor mount.
I offered up the bracket I made for the car left side and marked out the hole to drill and tap. Once it fixed to the fan I plug welded it to the heater box. Note that I put a little off set into the bracket so it clears the lid. This will also compensate for the loss of the two spring clips that hold the box together due to the size of the motor mount plate.
And I have to touch up the paint.

Is it worth it?
I dont know as my car is a wee way off being finished but it sure moves air so fingers crossed my Vitesse will be nice and toasty come next winter.

Adrian



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Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
2003 FFRR TD6 HSE
2014 VW Amarok Highline 4Motion
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Matt306
September 18, 2017, 7:24pm Report to Moderator

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I have seen this mod on http://triumphherald1360.blogspot.co.uk/2016/01/heater-fanblower.html I have done it and can confirm its a great mod.


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rustbuckit2011
September 18, 2017, 7:44pm Report to Moderator


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I am half way through fitting one into a modified spitfire box -my engine conversion has left no space for the original heater so I have to fit it behind the bulkhead. There is a difference in fan size between the k11 and k12 micras/march. K12 is the same as pulsar, and substantially larger than the k11. The tube into the motor body draws in air to the contacts and keeps it from overheating and burning out- you could leave the tube off but best not to plug it closed. It is a fairly simple job to wire in a resistor (i use a holden one) and give yourself a range of speeds


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ahebron
September 18, 2017, 8:52pm Report to Moderator


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Quoted from rustbuckit2011
I am half way through fitting one into a modified spitfire box -my engine conversion has left no space for the original heater so I have to fit it behind the bulkhead. There is a difference in fan size between the k11 and k12 micras/march. K12 is the same as pulsar, and substantially larger than the k11. The tube into the motor body draws in air to the contacts and keeps it from overheating and burning out- you could leave the tube off but best not to plug it closed. It is a fairly simple job to wire in a resistor (i use a holden one) and give yourself a range of speeds


Thanks for that info on the hose.
I am going to experiment with a PWM and see if I can use that to change motor speeds.
Maybe I have a K12 unit?

Adrian


Eastern shore of Te Whanganui-a-Tara

Vitesse 6 (owned since 1982, driven for 6 months a long time ago)
Vitesse Mk11 Conv (owned since 1992, never driven but the first Vitesse I looked at buying back in early 1982)
2000 BMW R1150 GS
2003 FFRR TD6 HSE
2014 VW Amarok Highline 4Motion
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sparky_spit
September 22, 2017, 8:18pm Report to Moderator

Mike Banks
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I've fitted a Bosch fan motor to a Spitfire mk3 heater.  It was sourced from a Smart Car and I fitted it in the same position as the original Smiths motor, albeit spaced slightly further rearwards as the motor is larger.  I used the existing plastic fan, just needing to drill the centre shaft hole slightly larger to fit the Bosch shaft.

It's pretty impressive.  It only draws 4 amps at full wack and I control it with a £2.40 (inc postage!) PWM unit from China.


Location - North Essex

1968 MkIII Spitfire - 2009, 2013, 2015 10CR. 2009, 2010 Nachtrit. 2011, 2012, 2014, 2015, 2016, 2017 HCR (..and 11/14ths of the 2011 10CR)
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Spitfire6
September 25, 2017, 7:42pm Report to Moderator


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Hi Sparky_Spit,
Do you know if the Smart Car Motor is the same mounting for a 1500?

A cheap Chinese Buck Boost converter set at 16 Volts and fed into a PWM Unit sounds like it would give Mega air flow. If only used at full power only for demisting or cooling the engine, life should not be comprised?

Cheers,
Iain.


Me in Burnley, GB
Spitfire 6 EFI Alpha N (Emerald K3 ECU). Big fat 215/40/16's on the backside. (They fit and minimal camber change). Custom cooling system with 20% EG for winter with 2% corrosion inhibitor. LED's all round. NT 5W40 Oil. 3.27 diff with a LSD by Quaife. TR6 Transmission + J Type.

PUG 206CC 2L twin-Cam. NT 5W40 Oil
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sparky_spit
September 28, 2017, 11:45am Report to Moderator

Mike Banks
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Hi Iain - unfortunately no, it wouldn't go straight into a 1500 heater box; you'd need to modify it a bit, as I had to for my Mk3 one.  The pictures below shows what it looks like.

When you take off the hamster-wheel fan, there is a dome shaped boss on the fan side of the plate for the shaft bearing. Luckily, this domed bearing housing has a lip on it which fits exactly into the hole in a Mk3 heater box.  All I needed to do then was to make up 3 tubular spacers so that the whole thing could be bolted to the heater box, using the mounting holes already in the plastic mounting plate. I drilled 3 new holes in the heater box rear panel to suit. The hamster wheel is obviously far too big to fit in the heater box, so I used the original Mk3 fan with its centre hole drilled to suit the new motor shaft.

It needed 2 half-moon cutouts in the plastic mounting plate to allow the speedo cable, etc. to pass through okay.  There's still good clearance for the rev counter, speedo and other gubbins behind the dash, although this is not an issue for a 1500 of course.

I know the 1500 has a different heater box and fan, so I'm not 100% sure if this could be used successfully or not in your car, but I don't think it would be that difficult to make it fit.  The whole thing is about 6" in diameter

Cheers - Mike



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Location - North Essex

1968 MkIII Spitfire - 2009, 2013, 2015 10CR. 2009, 2010 Nachtrit. 2011, 2012, 2014, 2015, 2016, 2017 HCR (..and 11/14ths of the 2011 10CR)
Yamaha RS200 two stroke smoke machine.
Royal Enfield Bullet 500
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Spitfire6
September 28, 2017, 8:19pm Report to Moderator


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Hi Mike,
Many thanks for taking the time to post.

Next time I'm at the breakers, looking for a 206cc battery box, I will source a Smart car heater fan.
My 1500 fan is making a bit of noise now, no doubt to being over driven, but I have a spare 3 terminal one. A modern two pin is the way to go.

Your find will surely help others.

Cheers,
Iain.


Me in Burnley, GB
Spitfire 6 EFI Alpha N (Emerald K3 ECU). Big fat 215/40/16's on the backside. (They fit and minimal camber change). Custom cooling system with 20% EG for winter with 2% corrosion inhibitor. LED's all round. NT 5W40 Oil. 3.27 diff with a LSD by Quaife. TR6 Transmission + J Type.

PUG 206CC 2L twin-Cam. NT 5W40 Oil
Automation and control systems engineer.
RIP Step-7 Classic. Long live Portal V14
IEEE Member
G6SBH
Yaesu FT 102 with all the extra's.

http://www.SpitFire6.UK               Main site- work in progress

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