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Jonathan Pryse

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Posts posted by Jonathan Pryse

  2. Radio noise - Blaupunkt Hamburg

    in Electrical System

    Posted

    Thanks guys for all your posts. It certainly put me off putting all the sound through the mono original left hand speaker. So I now have 2 new speakers in the back and the original speaker is also wired up as front left. Only had one drive out listening to the best stereo classic car album ever (Queen: A Night at the Opera) and it’s fab, but I am tempted to put a ‘front right’ speaker just to the right of the steering column on the right. So thanks again all. 

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  3. Wiring a new Car Stereo to Mono Speaker

    in Electrical System

    Posted

    11 hours ago, Colin Lindsay said:

    These are the ones I used; there are several sets on eBay at present, all around £20. Those adaptors of yours are a good idea but be careful in the footwell, you may inadvertently kick them off when getting in or out.

    https://www.ebay.co.uk/itm/Radiomobile-RMS620-60W-2-Way-Radio-Stereo-Pod-Speakers-Car-Van-Boat-Caravan/183910838128?epid=680667236&hash=item2ad1f0af70:g:pUYAAOSwfP1dSH~O

    Going to try and get them just to the right of the steering column as there is a small shelf there.  Just hoping they fit!

  4. Wiring a new Car Stereo to Mono Speaker

    in Electrical System

    Posted

    5 hours ago, Colin Lindsay said:

    Used to do it back in the day, but then perhaps radios were made of sterner stuff? :) (I wired a Mini Clubman in such a way that when the owner turned the radio on, the engine stopped....)

    If you wire just one channel into the speaker, you'll lose half of the sound - ok for radio maybe but not a lot of music that's in a higher-grade of stereo these days.

    Have you considered glove-box pod speakers? I have one Radiomobile pod speaker in each under-dash tray of my GT6, secured to the screws that hold the tray in place so no cutting involved. You can't see them as they sit right at the back but they sound great, even when driving.

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    Excellent suggestion - found something similar to put  my new 10cm speakers in.  Fingers crossed! https://www.amazon.co.uk/dp/B005JZ8G9S/ref=pe_3187911_185740111_TE_item

     

  6. Wiring a new Car Stereo to Mono Speaker

    in Electrical System

    Posted

    Hi

    Thanks all for your help re radio noise... New plan is to buy a new car stereo for my Spitfire.  However I don't really want to cut more holes out for speakers and am happy with just the one 4 inch speaker in the original hole.  Does anyone know how you can safely connect both outputs (ie right and left) to just the one speaker?

    Thanks in anticipation

    Jonathan

  8. Radio noise - Blaupunkt Hamburg

    in Electrical System

    Posted

    8 minutes ago, Badwolf said:

    Sounds like little/no signal to the radio. Good luck with it. The other techies will be on as well with their words of wisdom. It will get sorted for you, I'm sure. This may sound (no pun intended) bizarre, but wet your finger and put it over the hole for the aerial plug in the radio and see if you get any sort of signal, but please, get the right hole!!! This has worked for me in the past to get to the cause of reception problems. (This suggestion may lead to some strange thread drifts) By the way, are you getting any sort of reception apart from the interference?

    I can get a few stations in the background, mainly from the previously set preset buttons,  but the interference make them hard to hear. 

  9. Radio noise - Blaupunkt Hamburg

    in Electrical System

    Posted

    8 minutes ago, Badwolf said:

    Jonathan - I don't want to be insulting, but have you checked that the aerial is plugged in at the back of the radio, that the connecting cable is not damaged and that the aerial itself has a good ground to metal on the car body. I had trouble on one of my cars years ago and found that the aerial was fixed into a fibreglass repaired area and that the cable screen (the braided outer bit) was frayed beyond repair. A new aerial fixed it and an earth plate under the fibreglass.

    Hi. Nothing at all could insult me as I am so very new to this!  I will take your advice.  I was just keen to keep the original radio rather than replacing it with a new one (and then potentially having the same problem!).  The interference is constant and doesn't vary with the revs.  

  12. Overdrive - basic use

    in Gearbox & Overdrive

    Posted

    20 hours ago, Mjit said:

    I've always flat shifted in both my o/d equiped 2.5 saloon and Spitfire and never had any issues.

    My Spitfire's got a bits'a drive train, with 1300 engine/1500 gearbox/god knows diff. and find o/d 3rd very useful as it's not quite the same as 4th.  Around town the car's much happier with the extra RPM of o/d3rd vs 4th - though as a 1300cc it also has less torque than a 1500cc, and when waiting for an A road overtaking gap being able to drop o/d3rd to 3rd with just the flick of a switch helps you make progress.

     

    I don't think anybody's covered how an O/D works.  On a 1500 Spitfire it should be a J-type, which means a little in/out button on the top gearstick (and if you keep getting electric shocks, with the insulation rubbed through on the wires that run down inside the gear stick).  Stuck on the back of the engine you have the same 4 speed gearbox as every other 1500 Spitfire but stuck on the back of that, rather than just a lump of metal that covers the output shaft up to the point it bolts to the prop. shaft you have the O/D unit.  This is basically a separate, 2 gear gearbox but rather than being operated by a second gear stick (like the similar high/low ratio selector (2 speed gearbox) on an old Land Rover) it contains a little hydraulic pump and a valve controlled by an electrical circuit...which brings us back to the switch at the top of the gear stick.

    Flick the switch "in" and you complete the circuit to the valve.  The valve opens and feeds pressurised oil in to the 'in' side of the O/D.  The oil foces the gears in to the 'in' position and the output shaft of the O/D now turns faster than the output shaft of the main gearbox.

    Flick the switch 'out', the circuit closes, the valve closes, the oil stops being pumped to the 'in' side of the O/D, and the gears fall back to the 'out' position, at which point the output shaft of the O/D turns at the same speed as the output shaft of the main gearbox.

    Slightly over-simplified but hopefully gives you an idea of what's going.

    Really useful explanation as to how it works. Helps a lot when you understand what is happening when the overdrive is engaged. 

  13. Overdrive - basic use

    in Gearbox & Overdrive

    Posted

    Second newbie question....  Picking Spitfire 1500 up Saturday then driving home around M25.... Being born in 1967 I've never used overdrive before!  I understand it's just an extra 'ratio' but when and how is it used?  Is 4th + overdrive work a bit like 5th?  I've heard people say you can use it from 3rd too?? Not sure why you would want to.  And most basic question is how do you engage? I assume clutch is needed at same time as flicking the switch?? Just to reassure you it does work - I had it inspected before purchase!!  Thanks for your kind responses in advance - it will make my journey far less daunting!!

  15. Fuel advice for a newbie owner (Spitfire 1500)

    in Fuel System

    Posted

    Dear all

    I'm picking up a 1980 Spitfire 1500 on Saturday and would be grateful for advice as to what is the best fuel/additive to use.  This is my first classic car so apologies for such a simple question.  Dealer said just put normal unleaded in, but I'm not so sure.  The car is pretty much as new and has 33k miles on clock - just one owner.  Excited and scared at the same time!  All advice welcome.

    Best wishes

    Jonathan

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