SpitfireJAGS Posted October 31, 2021 Report Share Posted October 31, 2021 Does anybody know if the 1500cc air filter housings fit the 1300, I have dual SU carbs, or any other filter housings that fit? I am looking for an original air filter housing to go on my MkIV 1300cc Spitfire and cant find any for sale. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted October 31, 2021 Report Share Posted October 31, 2021 I think they're different, going by a recent model on eBay: https://www.ebay.co.uk/itm/Triumph-1500-Air-Box-TKC1570R-RKC4165-Original-BL-Cars-Mg-SU-Carbs-Lovely-/265383936146?var=0&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338268676&toolid=10044&customid=EAIaIQobChMIpMf8qJf18wIV2dnVCh1LSw2bEAQYBSABEgL3wvD_BwE The seller says he bought it for his 1300 but it's a 1500 model. I have a rusty one in my garage, not sure if it's 1300 or 1500 but if anyone knows how to tell I can check. Link to comment Share on other sites More sharing options...
NonMember Posted October 31, 2021 Report Share Posted October 31, 2021 The 1300 had HS2 carbs which have smaller throats than the HS4s on a 1500, so no, the air boxes are not interchangeable. I think the 1300 Mk4 used the same air box as the Mk3, which is a simple, flat affair with no fittings for hoses. It's easily distinguished from the 1500 one. Link to comment Share on other sites More sharing options...
KevinR Posted October 31, 2021 Report Share Posted October 31, 2021 22 minutes ago, NonMember said: I think the 1300 Mk4 used the same air box as the Mk3, which is a simple, flat affair with no fittings for hoses. It's easily distinguished from the 1500 one. The 1300 MKIV airbox and the 1500 Airbox look the same from a distance - they both have the hoses going out the front to pickup the air from in front of the radiator. Despite the boxes looking similar from a distance, they are NOT interchangeable. The 1300 ones have the face that mates to the carburettors drilled for a 1.25" throat carb, whilst the 1500 ones are drilled for a 1.5" throat carb. Link to comment Share on other sites More sharing options...
SpitfireJAGS Posted October 31, 2021 Author Report Share Posted October 31, 2021 Okay I shall attempt to continue my search for a 1300 air box. If anyone happens to see any for sale please drop me a link. Link to comment Share on other sites More sharing options...
Dick Twitchen Posted November 1, 2021 Report Share Posted November 1, 2021 I would try a call to SpitBitz and the like; they tend not to list individual items when you 'search' http://www.spitbitz.co.uk/html/used_parts.html Dick Link to comment Share on other sites More sharing options...
Colin Lindsay Posted November 1, 2021 Report Share Posted November 1, 2021 This is the one I've found - it was sandblasted a while back, never primed so has surface rust again. You'll excuse the erratic measurement, I was on top of a ladder, holding the phone in one hand, the tape measure in the other and trying to balance, but to me it looks like 1.25 inches? Link to comment Share on other sites More sharing options...
NonMember Posted November 1, 2021 Report Share Posted November 1, 2021 1 hour ago, Mathew said: Doesn't the 1500 have four holes round the opening? From memory I think you're right. Colin's one is for HS2s so it must be a 1300 MkIV, as Kevin noted. Link to comment Share on other sites More sharing options...
Unkel Kunkel Posted November 5, 2021 Report Share Posted November 5, 2021 On 31/10/2021 at 20:12, SpitfireJAGS said: Okay I shall attempt to continue my search for a 1300 air box. If anyone happens to see any for sale please drop me a link. I have one - a 1973 Mk1V, 1300 c.c. Good condition. I would be happy to send this on receipt of a cheque of £20 as donation made out to the registered charitable Welfare Trust of our local Cottage Hospital. -Happy to supply further details if you would like to p.m. me Andrew PS EDIT -Offer will be withdrawn midnight 7 Nov. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 6, 2021 Report Share Posted November 6, 2021 as the engine is slightly angled i would think it is a escape hole for any fuel flooding but by then the paper filter would be soaked and useless how about its hole to hang it up for painting ?? Pete Link to comment Share on other sites More sharing options...
SpitfireJAGS Posted November 7, 2021 Author Report Share Posted November 7, 2021 Thankyou to all the replies, I've now managed to get my hand on one. Link to comment Share on other sites More sharing options...
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