dblenk Posted February 15 Report Share Posted February 15 Hi All just putting everything back in the boot and noticed rust at the bottom of the petrol tank quick little tickle with the wire brush and apply rust preventer and pain so i thought now have a leak so tank out what is on the market to seal it from the outside ?? cheers David Quote Link to post Share on other sites
john.r.davies Posted February 15 Report Share Posted February 15 An outside seal won't work, any more than a bandage stops bleeding, until the blood clots. Tank sealants work by lining the inside, in a similar way! The sealant covers the hole, grips onto the surround, resists the internal pressure. I've no experience to quote you best product, though I fear that a rusty fuel tank, however well sealed, is a hand grenade (or incendiary) with the pin out. it just a matter of how long the fuse. John Quote Link to post Share on other sites
stuart Posted February 15 Report Share Posted February 15 In a word Dave.......DONT! I would just fit a new tank first as last. Stuart. Quote Link to post Share on other sites
dblenk Posted February 15 Author Report Share Posted February 15 There is company near me that repair fuel tanks is it worth a chat Mine is a USA carb car Think Peter Felon had a spare tank ?? David Quote Link to post Share on other sites
dblenk Posted February 15 Author Report Share Posted February 15 Any recommendations for a new one cooled were mentioned for an alloy one Cheers David Quote Link to post Share on other sites
BlueTR3A-5EKT Posted February 15 Report Share Posted February 15 5 hours ago, dblenk said: Hi All just putting everything back in the boot and noticed rust at the bottom of the petrol tank quick little tickle with the wire brush and apply rust preventer and pain so i thought now have a leak so tank out what is on the market to seal it from the outside ?? cheers David Quote Link to post Share on other sites
dblenk Posted February 15 Author Report Share Posted February 15 31 minutes ago, BlueTR3A-5EKT said: Ok cheers david Quote Link to post Share on other sites
dblenk Posted February 15 Author Report Share Posted February 15 Rimmers have one in stock new seen a fee comments on here am i asking for trouble ??? PM me david Quote Link to post Share on other sites
Trevor Grant Posted February 15 Report Share Posted February 15 Hi David I had the same problem last year, purchased a steel TR4A tank from 'Rimmer' and had it fitted with no real problems apart from the fuel pipe outlet that required a slight modification to the boot floor (about 15mm). There are several plugs that are surplus to requirements on the tank both top and bottom, just ensure that they are tight! Trevor Quote Link to post Share on other sites
dblenk Posted February 15 Author Report Share Posted February 15 cheers Trevor Quote Link to post Share on other sites
PodOne Posted February 15 Report Share Posted February 15 As above not worth repairing it will only rot out somewhere else. I'd personally buy a new over secondhand. Andy Quote Link to post Share on other sites
dblenk Posted February 16 Author Report Share Posted February 16 cheers Andy Quote Link to post Share on other sites
BlueTR3A-5EKT Posted February 16 Report Share Posted February 16 (edited) My TR3 tank was leaking in 1977. I took the tank to work one night shift, wire brushed it and smeared the outer surface with Thiokol PR1422 BT1. Which is a 2 part goop aka monkeyshit. Internally I sloshed 3M EC776 fuel proof coating. A pouring, brushable lacquer type sealant. These were both products we regularly used on aircraft fuel systems. I changed the tank in 2018 for an Ali Cool made item, which had the outlet hole 3/4” out of position, because the repaired one had started to weep. Conclusion. Nearly 40 year old repair did ok. The old tank is up in the rafters of the garage ‘just in case’ Edited February 16 by BlueTR3A-5EKT Quote Link to post Share on other sites
dblenk Posted February 17 Author Report Share Posted February 17 cheers all sorted David Quote Link to post Share on other sites
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