Alenafour Posted September 17, 2015 Report Share Posted September 17, 2015 I would like to fit a 'bloody loud' airhorn, driven by a compressor and tank on my 4LW. I am guessing that back in the day this was a fairly standard thing to do. Does anyone know what parts were commonly used (if my guess is correct) and where on the engine is the PTO? Failing that, any ideas for running one from the front engine alternator pulley? I have a spare single v-belt pulley behind the double belt alternator pulley. Link to comment Share on other sites More sharing options...
martyn 1 Posted September 17, 2015 Report Share Posted September 17, 2015 Well the PTO for the pumps on automotive LW's is on the timing case, so a starting point would be to see if you engine has this or not. would look like this LINKY (above the pulley) The other slight issue might be that as far as I recall the pumps fitted here as standard were vacuum not pressure pumps. meant for brake systems Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 I assume not from these photos, although perhaps it would be easier to fit a modern compressor to the inside pulley than find a true Gardner part anyway. Link to comment Share on other sites More sharing options...
martyn 1 Posted September 17, 2015 Report Share Posted September 17, 2015 Well from your pics your engine certainly doesnt have that PTO. Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 Well from your pics your engine certainly doesnt have that PTO. Do you mean directly behind the pulley or above and slightly to the right (looking from that end)? Link to comment Share on other sites More sharing options...
by'eck Posted September 17, 2015 Report Share Posted September 17, 2015 I investigated having an air horn on my new build boat some years ago, although not sure this was ever a standard. A post horn was converted with the addition of an air sound driver from a truck horn. This was the resulting sound when coupled directly to an industrial compressor set to a mere 30 psi, and before the project was shelved. http://k003.kiwi6.com/hotlink/s5je8s04ic/airhorn.mp3 Development would have added a compressor storage tank (as you intend) feeding a solenoid operated air valve for instantaneous sound. The compressor would have been a DC electric one and would suggest this would be the cheaper option rather than the hassle of fitting a mechanical one to your 4LW. Old thread here on similar topic. Note the typical cheap car air horn compressor is way too feeble in terms of volume and/or pressure to fill a tank, and certainly no good to feed a large air horn directly. Link to comment Share on other sites More sharing options...
bizzard Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) A decent size air receiver tank, would power an air hooter or a nice steam whistle for quite a few good blasts. The receiver could be pumped up with a bike pump, foot pump, 12v mini compressor or orally like a balloon. In place of an air hooter a musical wind instrument could be connected. Clarinets make the most beautiful sounds. Or with a baritone sax sinister warning dirges could be blown. It would need to be a reed instrument.. Edited September 17, 2015 by bizzard Link to comment Share on other sites More sharing options...
MarkHez Posted September 17, 2015 Report Share Posted September 17, 2015 A decent size air receiver tank, would power an air hooter or a nice steam whistle for quite a few good blasts. The receiver could be pumped up with a bike pump, foot pump, 12v mini compressor or orally like a balloon. In place of an air hooter a musical wind instrument could be connected. Clarinets make the most beautiful sounds. Or with a baritone sax sinister warning dirges could be blown. It would need to be a reed instrument.. Always thought about hooking my bagpipes up to a compressor, would make playing them a damn sight simpler! Link to comment Share on other sites More sharing options...
MtB Posted September 17, 2015 Report Share Posted September 17, 2015 I would like to fit a 'bloody loud' airhorn, May I ask why? Link to comment Share on other sites More sharing options...
GreyLady Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) Deleted Edited September 18, 2015 by grumpy146 Link to comment Share on other sites More sharing options...
MtB Posted September 17, 2015 Report Share Posted September 17, 2015 Fun piercing other boaters' eardrums, you mean? Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 Because it's difficult to be taken seriously with something that sounds like a wet fart. Would this do the reservoir job; http://www.ebay.co.uk/itm/Air-Pressure-Vessel-powder-coated-blue-5-Litre-Reservoir-Tank-New-1-2-bsp-Ports-/131594926007?hash=item1ea3ab37b7 Link to comment Share on other sites More sharing options...
GreyLady Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) Deleted Edited September 18, 2015 by grumpy146 Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 and would this do the compressing? or is it too mickey mouse? http://www.ebay.co.uk/itm/12V-Professional-Large-Volume-4XWD-Air-Compressor-Car-Van-Tyre-Inflator-451714-/281710963788?hash=item4197482c4c Link to comment Share on other sites More sharing options...
RLWP Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) How about this: http://www.ebay.co.uk/itm/6-1-Lister-Type-Air-Compressor-by-Powerline-Engine-Diesel-Listeroid-/251163185240 Richard MORE A JP3 seems good for the job too: Edited September 17, 2015 by RLWP Link to comment Share on other sites More sharing options...
GreyLady Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) Deleted Edited September 18, 2015 by grumpy146 Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 I thought Listeroid was a type of breath freshener until I discovered the D-type What about going 12 volt instead of Engine run compressorhttp://www.ebay.co.uk/itm/4-Trumpet-Vehicle-Air-Horn-24-Volt-Compressor-Hose-150-dB-Train-150-PSI-Kit-/281756443897?hash=item4199fe24f9or thishttp://www.ebay.co.uk/itm/Train-Air-Horn-Kit-Three-Trumpets-w-150-PSI-12-Volt-Compressor-1-Gal-Air-Tank-/130508341335?hash=item1e62e74057 Yes, I guess this could do the job; http://www.ebay.co.uk/itm/12v-Quad-Train-Air-Horn-Hose-150db-Loud-150-PSI-Kit-/271796780919?hash=item3f4859bf77 except I have two things; a large Gardner engine under-employed, and a reluctance to spend £130 if I can help it. Link to comment Share on other sites More sharing options...
GreyLady Posted September 17, 2015 Report Share Posted September 17, 2015 and would this do the compressing? or is it too mickey mouse? http://www.ebay.co.uk/itm/12V-Professional-Large-Volume-4XWD-Air-Compressor-Car-Van-Tyre-Inflator-451714-/281710963788?hash=item4197482c4c You might get just a louder wet fart with that I think. Lol Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 You might get just a louder wet fart with that I think. Lol Well it's not that bit that makes the noise, it's just a question of whether it would fill the reservoir to the pressure needed. Link to comment Share on other sites More sharing options...
RLWP Posted September 17, 2015 Report Share Posted September 17, 2015 Well it's not that bit that makes the noise, it's just a question of whether it would fill the reservoir to the pressure needed. Yes - eventually... How big a reservoir to what pressure? And stop messing about and buy a decent electric horn Richard Link to comment Share on other sites More sharing options...
GreyLady Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) Deleted Edited September 18, 2015 by grumpy146 Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 And stop messing about and buy a decent electric horn Suggestions? Link to comment Share on other sites More sharing options...
RLWP Posted September 17, 2015 Report Share Posted September 17, 2015 http://www.ebay.co.uk/itm/12V-136db-Car-Snail-Dual-Tone-Loud-Compact-Air-horn-Truck-Lorry-Yacht-Motorcycle-/201199456976?hash=item2ed86c12d0 Remember to issue earplugs Richard I wonder if our horn still works? It must be years since I had to use it Link to comment Share on other sites More sharing options...
GreyLady Posted September 17, 2015 Report Share Posted September 17, 2015 (edited) Deleted Edited September 18, 2015 by grumpy146 Link to comment Share on other sites More sharing options...
Alenafour Posted September 17, 2015 Author Report Share Posted September 17, 2015 I'll give it a go at that price http://www.ebay.co.uk/itm/12V-136db-Car-Snail-Dual-Tone-Loud-Compact-Air-horn-Truck-Lorry-Yacht-Motorcycle-/201199456976?hash=item2ed86c12d0 Remember to issue earplugs Richard I wonder if our horn still works? It must be years since I had to use it Link to comment Share on other sites More sharing options...
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