Where is the best place to get the concertinaed plastic heater tubes from (good quality) that fit from the heat control pods to the steel Y? (T4 engine) Also does anyone know what the white material is in the ends of original ones?
Not that bad but One end has the tin sleeve and white sealing ring missing, not sure how to replace this or rather what with
if the outer housing is OK, and the mesh liner (presuming it's og metal mesh inside) is still holding up, I'd make a suitable sleeve from a bean tin or similar, and replace the sealing ring with some exhaust bandage... It may sound like a bodge, but the new concertinas are not a patch on the originals (although JK reckon they've resolved the melting issue) and for a couple of quid, it will do the job http://www.halfords.com/webapp/wcs/..._productId_196275_langId_-1_categoryId_255217
Junked my asbestos ones as its not ideal to be blowing into your van is it! Replacement seals are available.
Found these seals, are they any good? Seem to remember having orange/red ones at some point. http://www.vwheritage.com/vw_spares...t_shop.product_pID_37712.htm?crumbStartPage=1
I know the rubber seals are still available...but don't think you can buy the inner sealing sleeve that fits inside the housing.....at least i've not come across any. The new concertinas have a heat insulating fibre gasket between the split metal sleeve and the plastic outer....(on one end only...for the HX side), but it's nothing to write home about..I'm convinced bandage will do the same job just as well... failing that, email Merlin motorsport and ask for a 6 inch sample of their widest exhaust wrap.....
http://www.ebay.co.uk/itm/EXHAUST-B...arts_Vehicles_CarParts_SM&hash=item3f30428211 buy two.... are these used to replace the OG asbestos sleeves?
I've still got 2 bits of blue silicone tubing acting as concertinas! They haven't melted yet! I remember some one posting a link a year or so back and a whole load of us ordered them for about £6 a pair. I have most of the correct parts now and was thinking about returning to stock around April time. Do these seals replace the metal rings as well?
Unless there's an issue, I'd be inclined to keep the silicone ones on....maybe wrap some insulation round them if you haven't already... The stock tubes may reduce noise to a certain extent, but given the materials and construction, it'd be marginal IMO....
this is what you get in a new concertina....thin lagging, pvc housing and a plastic core that either melts, or doesn't depending where you buy them from....£60 a pair? I don't think so
I think the metal sleeves are meant to protect the asbestos bit and stop it welding itself to the HX + hold all the bits together? There are also convex rings to go further inside if you're going the whole hog. I was using them to fill out the gap. One end had lost everything, one had crumbling stuff and the metal sleeve. I used what there was and it all fitted nicely so no leaks. The metal sleeve wouldn't protect the rubber seal from heat anyway so whether it's there or not is a matter of taste perhaps. This isn't my specialist subject but the concertinas fitted a whole lot better with the rubber seals than with nothing at all and I wasn't about to replace the og concertinas with melty JK ones! Best of a bad job perhaps. A compromise.
I have accumulated a selection of OG concertinas, I can see the logic in insulating what I have though. I have often weighed up the cost of getting heat to the cab and think if I started from scratch, I would go for J tubes and spend all the heat x money on a Propex!
