I'm on an extended bike stroking session on the GS, part of which was to remove the collector box & tail pipe. Predictably the rear exhaust clamp was corroded on tight and I ended up taking the whole lot off in a oner, then liberally applying Plus Gas and the mashie hammer. To no avail.
On the previous Blue Bike I sawed off the OE clamp and replaced with a Keihan one, but this time I'd like to keep the heat shield bit and at £70 SH and £150 new for the OE version I thought I'd persevere...
I'm not a great one for heat, but I found rave reviews for this product: https://www.amazon.co.uk/BLASTER-CHEMICAL-COMPANIES-PENTRATING-CATALYST/dp/B01BNUED3U/ref=sxts_rp_s_1_0?content-id=amzn1.sym.07198d44-a16f-4503-b71e-3f4c67470a0f%3Aamzn1.sym.07198d44-a16f-4503-b71e-3f4c67470a0f&crid=19QBA9H2GLJY1&cv_ct_cx=pb+blaster&keywords=pb+blaster&pd_rd_i=B01BNUED3U&pd_rd_r=b8c18d02-b79a-4acf-a728-bd2044254b33&pd_rd_w=ouLtn&pd_rd_wg=IqV2t&pf_rd_p=07198d44-a16f-4503-b71e-3f4c67470a0f&pf_rd_r=E2KTQS2YPPY2PCWN4WGR&qid=1689237876&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sprefix=pb+blaster%2Caps%2C91&sr=1-1-1890b328-3a40-4864-baa0-a8eddba1bf6a.
To my astonishment it seems to have worked... It's yellow and foamy (like nitric acid
) and does indeed seem to creep into and break the corrosion bond, and with only a very gentle persuasion from Mr Mashie, I now have front box, OE clamp and rear pipe all apart. TBH it's worth buying a can simply for the artwork - 'Proudly made in the Rust Belt'... Interesting how the Americans seem so good at this sort of innovation (eg Plus Gas, WD-40, ACF-50) while others seem to produce so little?