Z320 Posted January 5, 2019 Report Share Posted January 5, 2019 (edited) Hi everybody, to repair some cables I have got the heater out - good idea to have a closer look on it... My question is: between the "fan box" and the plenum chamber there was a gap / no seal. A previour owner tryed to get it seald with white acryl compound (?) but that did not work. Does a seal make sence? Without seal the air gets faster warm because of air circulation? Any ideas? Ciao Marco Edited January 5, 2019 by Z320 edit title Quote Link to post Share on other sites
aardvark Posted January 5, 2019 Report Share Posted January 5, 2019 Well done for getting the heater out Marco. The heater is normally (!) sealed with a foam circular seal (thick gasket I suppose). These come up on eBay but I suppose the usual suppliers can source too. Yes you need to seal it. cheers dave Quote Link to post Share on other sites
Z320 Posted January 6, 2019 Author Report Share Posted January 6, 2019 Dave, thank you, I found it at Rimmer and Limora, but it is no longer (not) available, found a piece of soft foam in my workshop and make it myself. Ciao, Marco Quote Link to post Share on other sites
RogerH Posted January 6, 2019 Report Share Posted January 6, 2019 Hi Marco, as mentioned by Dave there should be a seal there. It does not need to be strong as there is little pressure on it. A ring of foam rubber/sponge would suffice. I've not seen one for sale by the main suppliers. Roger Quote Link to post Share on other sites
Waldi Posted January 6, 2019 Report Share Posted January 6, 2019 Hi Marco, yes, a seal will avoid by-passing, so more flow throught the radiator and less cold air by-passing it. Hence better heating. If the soft seals are NLA, soft cell foam would do, you can buy them with adhesive on one side. I think it is approx.10 mm high, make it small, like 10-15 mm, to avoid bending of the heater housing. Waldi Quote Link to post Share on other sites
RogerH Posted January 6, 2019 Report Share Posted January 6, 2019 Self adhesive window draught excluder. https://www.ebay.co.uk/itm/Draught-Excluder-Foam-Tape-Weather-Seal-Strip-Insulation-Door-Window-Proofing40M/163392497733?hash=item260af3a845:rk:1:pf:0&var Roger Quote Link to post Share on other sites
AlanG Posted January 6, 2019 Report Share Posted January 6, 2019 Try Revington. I got one there a few years ago. Alan. Quote Link to post Share on other sites
stuart Posted January 6, 2019 Report Share Posted January 6, 2019 5 hours ago, RogerH said: Self adhesive window draught excluder. https://www.ebay.co.uk/itm/Draught-Excluder-Foam-Tape-Weather-Seal-Strip-Insulation-Door-Window-Proofing40M/163392497733?hash=item260af3a845:rk:1:pf:0&var Roger Not thick enough Roger Im afraid. Stuart. Quote Link to post Share on other sites
Dave I O W Posted January 6, 2019 Report Share Posted January 6, 2019 Here's one, https://www.ebay.co.uk/itm/292880460796 hope it helps Cheers Dave. Quote Link to post Share on other sites
Tim Carr Posted January 6, 2019 Report Share Posted January 6, 2019 I used this stuff for the heater on my GT6: https://www.woolies-trim.co.uk/product/1440/self-adhesive-black-sponge-strip. Alternatively this might work if the internal diameter suits: https://www.wickes.co.uk/Euroflo-By-Fluidmaster-1-1-2in-Washer-for-Close-Coupled-Toilet-Cisterns/p/150205. Tim Quote Link to post Share on other sites
SeanF Posted January 6, 2019 Report Share Posted January 6, 2019 1 hour ago, Dave I O W said: Here's one, https://www.ebay.co.uk/itm/292880460796 hope it helps Cheers Dave. I used one of these. Worked fine Quote Link to post Share on other sites
keith1948 Posted January 6, 2019 Report Share Posted January 6, 2019 Alternatively go to your local building supplies store and buy some extra thick 13mm x 8mm foam black self adhesive weatherstrip and you will have more than enough to last you and your friends a lifetime. Or use the rest you don't use for your house. Here in the UK there is a store called Screwfix - have a look at product code 40425 to see what I mean. https://www.screwfix.com/p/stormguard-extra-thick-weatherstrip-black-3-5m/40425?_requestid=392872 Keith Quote Link to post Share on other sites
Z320 Posted January 6, 2019 Author Report Share Posted January 6, 2019 Thank you all, I come just out of my workshop, made the seal from a "sheet" of semi shoft foam. One hour earlier I would have ordered Dave's eBay item. Ciao / Cheers, Marco Quote Link to post Share on other sites
TR4A1965 Posted January 6, 2019 Report Share Posted January 6, 2019 If it helps, you can see a detailed strip down of the heater and all the parts including the seal here: http://tr4a.weebly.com/smiths-heater-triumph-tr4a.html Best Paul. Quote Link to post Share on other sites
Z320 Posted January 7, 2019 Author Report Share Posted January 7, 2019 Thanks Paul for that link, I also opened my heater box (which is in much better condition) to clean it, there was nearly no dust inside. Nice to are the cables both white, according the wirering diagramm black and green, and the heater hinselfs that must have been wraped with a soft foam tape, as mine also must have been. Guess I have something suitabe anywhere. Ciao / Cheers, Marco Quote Link to post Share on other sites
stuart Posted January 7, 2019 Report Share Posted January 7, 2019 4 minutes ago, Z320 said: Thanks Paul for that link, I also opened my heater box (which is in much better condition) to clean it, there was nearly no dust inside. Nice to are the cables both white, according the wirering diagramm black and green, and the heater hinselfs that must have been wraped with a soft foam tape, as mine also must have been. Guess I have something suitabe anywhere. Ciao / Cheers, Marco They always had white wires coming out from the heater, the little foam strips internally are well worth replacing as it makes the various positions for the flap more efficient. Stuart. Quote Link to post Share on other sites
keith1948 Posted January 7, 2019 Report Share Posted January 7, 2019 I took apart the heater matrix on an old leaky unit a while ago. The 2 end boxes of the radiator part get filled up with sediment it seems because the design is not very good. Would have been much better if Triumph had done away with the end boxes and the flattened soldered channels between the two and used a coil of copper pipe instead inside the fins. Then it wouldn't silt up at the ends and resistance to flow would have been less resulting in a better unit. Also because of no soldered joints less likely to spring a leak. If I get a free week or two (unlikely) I might try to build a better heat exchanger using the fins from the old unit and some 10mm pipe with 15mm connectors to the heater pipes. If I succeed I will post the results. Keith Quote Link to post Share on other sites
Z320 Posted January 7, 2019 Author Report Share Posted January 7, 2019 (edited) Hi Stuart, I always had a annoying rattle noice in some positions of the flap.....any idea? Hi Kieth, safe your time - we never any problem with the heater, I can make it hot until our legs and feet glow. Anyway I flashed the heater with 4 bar waterpressure from the garden tap and indeed a lot of sediment came out. Ciao / Cheers, Marco Edited January 7, 2019 by Z320 Quote Link to post Share on other sites
stuart Posted January 7, 2019 Report Share Posted January 7, 2019 5 minutes ago, Z320 said: Hi Stuart, I always had a annoying rattle noice in some positions of the flap.....any idea? Ciao / Cheers, Marco The rods on each end of the flap where they go through the main body of the heater are quite loose in the holes so it could be that. Stuart. Quote Link to post Share on other sites
Z320 Posted January 7, 2019 Author Report Share Posted January 7, 2019 (edited) The heater hinself I wraped with dry wall making tape, sorry - no photo. The seal I made as told from a semi soft foam, the flap I gave some more weight by flexible edge trim. That also made the gap between flap and housing smaller, if it does not stand the heat it is easy to remove. Ready to fit on the car, waiting for new hoses. Edited January 7, 2019 by Z320 Quote Link to post Share on other sites
RogerH Posted January 15, 2019 Report Share Posted January 15, 2019 Hi Marco, one has just appeared on ebay https://www.ebay.co.uk/itm/TRIUMPH-TR4-TR4A-TR5-TR6-AND-Dolomite-Sprint-HEATER-AIR-INTAKE-SEAL/254068845585?hash=item3b27aeec11:g:UhIAAOxyUrZS85pG:rk:3:pf:1&frcectupt=true Roger Quote Link to post Share on other sites
Z320 Posted January 16, 2019 Author Report Share Posted January 16, 2019 Hi Roger, thank you very much for your attention, I made my own one, you see it on the photo above, heater is already back in the car with new hoses, coolant in, sealed. Ciao Marco Quote Link to post Share on other sites
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