Mad4classics Posted August 31, 2020 Report Share Posted August 31, 2020 (edited) Ok, either the motor needs to be modified to fit the mount or the box to fit the motor. Unlike all later variants the early heater box is just two fixing holes - not flange mount. Edited August 31, 2020 by Mad4classics Added picture Link to comment Share on other sites More sharing options...
1969Mk3Spitfire Posted August 31, 2020 Author Report Share Posted August 31, 2020 27 minutes ago, Mad4classics said: The MGB single speed motor could also be made to fit if you ignored the three hole mounting flange half way along the body and used the motor through bolts David Do you know that for sure, David? They seem to be more readily available (on ebay) Thanks, Colin, I followed your search and quickly looked through 250 listing and found 2. One, already linked by David, seems to have a bare metal coloured motor and one other, advertised as untested. I've contacted both sellers to ask a few questions. Link to comment Share on other sites More sharing options...
Mad4classics Posted August 31, 2020 Report Share Posted August 31, 2020 25 minutes ago, 1969Mk3Spitfire said: Do you know that for sure, David? They seem to be more readily available (on ebay) No I don't know for sure; but except for the flange mounted half way along the front portion which you could either remove or leave it has two bolts passing through and a compression nut fan blade fixing. Perhaps a question for the MGOC forum. It's as @Colin Lindsay says "of similar vintage". You haven't got a lot of room to play with because of the speedo and tacho cable apertures if you chose something else. David Link to comment Share on other sites More sharing options...
thescrapman Posted August 31, 2020 Report Share Posted August 31, 2020 https://club.triumph.org.uk/menu/7445/item/579840/view link to A post by Mike who fitted a Smart motor to a .mk3 it is very effective, I have been in the car. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted August 31, 2020 Report Share Posted August 31, 2020 14 minutes ago, thescrapman said: https://club.triumph.org.uk/menu/7445/item/579840/view link to A post by Mike who fitted a Smart motor to a .mk3 it is very effective, I have been in the car. They're certainly cheap; limited room in the Spitfire box but wonder how it would look in a Herald heater? Why did he need a PWM unit? Link to comment Share on other sites More sharing options...
NonMember Posted August 31, 2020 Report Share Posted August 31, 2020 45 minutes ago, Colin Lindsay said: Why did he need a PWM unit? I think just because it's a much more powerful motor and that gives him a multi-speed option. It's more efficient to PWM than use big, hot resistors that could be hard to fit in the space. Link to comment Share on other sites More sharing options...
Mad4classics Posted September 1, 2020 Report Share Posted September 1, 2020 There are always companies who specialise in electic motor restoration of this sort for veteran cars. http://www.robsonandfrancisrewinds.co.uk/veteran/index.html Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 1, 2020 Report Share Posted September 1, 2020 11 hours ago, NonMember said: I think just because it's a much more powerful motor and that gives him a multi-speed option. It's more efficient to PWM than use big, hot resistors that could be hard to fit in the space. Aha! So: if you just wanted single speed, you wouldn't need one? I wondered if maybe it was a higher current rating than the original Herald version but then it's probably way more efficient. Might be worth experimenting. Link to comment Share on other sites More sharing options...
Mjit Posted September 1, 2020 Report Share Posted September 1, 2020 1 hour ago, Colin Lindsay said: Aha! So: if you just wanted single speed, you wouldn't need one? I wondered if maybe it was a higher current rating than the original Herald version but then it's probably way more efficient. Might be worth experimenting. Or as most PWMs seem to work off a potentiometer to control actual fan speed you should be able to replace that with wiring to the original 2 speed switch, with maybe some experimenting on inline resistors to get appropreate high/low speeds... Upgrading the blower motor is on my Spitfire "post Duxford" fiddle list. Link to comment Share on other sites More sharing options...
Sparky_Spit Posted September 2, 2020 Report Share Posted September 2, 2020 Hi - I'm the Mike that Colin Scrapman was referring to above, who fitted the SmartCar heater blower motor to a MK3 Spitfire. I used a PWM from China (very cheap) and used a potentiometer that also had an on/off switch incorporated into it, 1960's transistor radio style. This meant that I only needed one hole in the dashboard to switch the blower on and adjust its speed and air output. I can't remember now how much current the motor actually drew at full chat, but it would have been about 4 or 5amps or so. The PWM I used, with its heatsink and its switch is easily up to the job and does not overheat. The output of the blower at full blast is too much to bear in a Spitfire cabin, so its useful having an infinitely adjustable speed control. I'll try and trawl though my eBay purchases and post up the actual unit I used. Link to comment Share on other sites More sharing options...
Sparky_Spit Posted September 2, 2020 Report Share Posted September 2, 2020 I can't find the actual purchase on eBay, as it was over 3 years ago now, but it was one of these, but not from this actual seller : https://www.ebay.co.uk/itm/Mini-DC-Motor-Speed-Control-Driver-Board-3V-35V-5A-PWM-Controller-LED-dimmer/163091515028?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D225113%26meid%3D08c27f809276414abc2294bcac6fc1db%26pid%3D100005%26rk%3D2%26rkt%3D12%26mehot%3Dpf%26sd%3D193312727515%26itm%3D163091515028%26pmt%3D1%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganic%26brand%3DUnbranded&_trksid=p2047675.c100005.m1851 Mike Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 2, 2020 Report Share Posted September 2, 2020 37 minutes ago, Sparky_Spit said: Hi - I'm the Mike that Colin Scrapman was referring to above, who fitted the SmartCar heater blower motor to a MK3 Spitfire. Excellent, Mike - thanks for the explanation. With the Herald being single speed I wondered if you'd required one for two-speed-fan cars, but if it's a variable speed rheostat thing, I'm definitely interested in trying the system for a Herald. It should be easier to fit with the larger heater box and extra room on the bulkhead rather than under it. Link to comment Share on other sites More sharing options...
Sparky_Spit Posted September 2, 2020 Report Share Posted September 2, 2020 I've also noticed on ebay, that if you want to blow the expense and really push the boat out, you can spend £4.90 instead of £2.90 you can get one rated at 10A. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 2, 2020 Report Share Posted September 2, 2020 Did you miss the £3.55 version? https://www.ebay.co.uk/itm/UK-PWM-DC-5V-16V-10A-DC-Motor-Speed-Controlling-Switch-LED-Dimmer-Controller/154020378594?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D225113%26meid%3De13d8a77f34441af91dc0153d49ca934%26pid%3D100005%26rk%3D6%26rkt%3D12%26mehot%3Dco%26sd%3D293187689366%26itm%3D154020378594%26pmt%3D1%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganic%26brand%3DUnbranded&_trksid=p2047675.c100005.m1851 There's also a 60 amp too... £9.49... Link to comment Share on other sites More sharing options...
1969Mk3Spitfire Posted September 3, 2020 Author Report Share Posted September 3, 2020 On 01/09/2020 at 04:16, Mad4classics said: There are always companies who specialise in electic motor restoration of this sort for veteran cars. http://www.robsonandfrancisrewinds.co.uk/veteran/index.html Thanks for the link, David. They wouldn't give me a quote until they had seen the motor but told me that their prices start from £125. Fortunately, Canley Classics tell me that they have one. Link to comment Share on other sites More sharing options...
thescrapman Posted September 3, 2020 Report Share Posted September 3, 2020 Mike Smart 4/4 or 4/2? if 4/4 then £15 https://www.ebay.co.uk/itm/SMART-FORFOUR-454-2004-2007-HEATER-BLOWER-MOTOR-FAN-ASSEMBLY-MF-016070-0721/164323607204?hash=item26427342a4:g:pQkAAOSw~mBdsvnv Link to comment Share on other sites More sharing options...
Mad4classics Posted September 3, 2020 Report Share Posted September 3, 2020 3 hours ago, 1969Mk3Spitfire said: Fortunately, Canley Classics tell me that they have one. Pleased you found one. Came accross this brand new Clayton heater motor which looks as it could be adapted by reversing the bolts and ignoring the flange mount. https://www.holden.co.uk/p/clayton_heater_fan_motor_single_shaft_1_4_in Just for reference; made in Canada? And Ashley Hinton is re-making the original Smiths fan blade using the original tooling, which is where I went when mine broke. https://www.mg-cars.org.uk/ah/ He also sells through ebay:- https://www.ebay.co.uk/itm/Triumph-Spitfire-MK1-MK2-MK3-to-1970-LOTUS-MK14-HEATER-FAN-NEW-/254353759457?nav=SEARCH David Link to comment Share on other sites More sharing options...
Sparky_Spit Posted September 3, 2020 Report Share Posted September 3, 2020 4 hours ago, thescrapman said: Mike Smart 4/4 or 4/2? if 4/4 then £15 https://www.ebay.co.uk/itm/SMART-FORFOUR-454-2004-2007-HEATER-BLOWER-MOTOR-FAN-ASSEMBLY-MF-016070-0721/164323607204?hash=item26427342a4:g:pQkAAOSw~mBdsvnv It was from a Smart FourTwo - the original CT Forum post is here:https://club.triumph.org.uk/menu/1/item/613113/view?search=smart+car&messagepage=1#num1 Link to comment Share on other sites More sharing options...
thescrapman Posted September 3, 2020 Report Share Posted September 3, 2020 On 02/09/2020 at 20:33, Colin Lindsay said: Did you miss the £3.55 version? https://www.ebay.co.uk/itm/UK-PWM-DC-5V-16V-10A-DC-Motor-Speed-Controlling-Switch-LED-Dimmer-Controller/154020378594?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D225113%26meid%3De13d8a77f34441af91dc0153d49ca934%26pid%3D100005%26rk%3D6%26rkt%3D12%26mehot%3Dco%26sd%3D293187689366%26itm%3D154020378594%26pmt%3D1%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganic%26brand%3DUnbranded&_trksid=p2047675.c100005.m1851 There's also a 60 amp too... £9.49... That much? 10A for £2.31 https://www.ebay.co.uk/itm/PWM-10A-5V-to-16V-Speed-Regulation-LED-Dimming-Ultra-High-Linearity-Band-Switch/292331822199?hash=item4410559c77:g:VdwAAOSwPypabvfl ther is a digital version for £3.50 ish https://www.ebay.co.uk/itm/DC-8-55V-10A-PWM-Motor-Speed-Controller-DC-Digital-LED-Display-Switch-Controller/293171187098?_trkparms=aid%3D1110012%26algo%3DSPLICE.SOIPOST%26ao%3D1%26asc%3D20200420083544%26meid%3D7a93e74ef79e489896c58942f7c3356d%26pid%3D100008%26rk%3D1%26rkt%3D12%26sd%3D292331822199%26itm%3D293171187098%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DPromotedSellersOtherItemsV2%26brand%3DUnbranded&_trksid=p2047675.c100008.m2219 Link to comment Share on other sites More sharing options...
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