Well there I was... at full chat going from 4th to 5th past a long line of traffic on a wide open A road and there is this mighty bang followed by what sounds like a misfire and/or blowing exhaust.
Scared me witless - its all going thru my mind - all this time on chips (and the new set I'm brewing now) with an engine at 119k miles - I'm thinking that something major has bit the dust and I can almost see the extra zero being added to my Visa bill. Oh sh*t
Car is still pulling OK, no smoke, pressures & temps OK and I'm less than a mile from home. I carefully bring her back home and am sure that I can smell exhaust gas, thinkin' I must have cracked something...
Then I remembered that just yesterday I had fitted the CO measuring tube onto my exhaust downpipe (these were only fitted on 3B in the factory) so I wondered had it worked loose... Oh no - the attached photograph tells the story much better. Too much of a coincidence.
Guess the factory bung (brand new) ain't rated for the kind of exhaust gas pressures when humping 1.45 bar around. The bung didn't last 50 miles so I gotta wonder has anybody else had this happen to them. Maybe I got a dufff bung.
Must admit it didn't feel somehow right when I squeezed it on so there's 20:20 hindsight for you. I'm thinking that a neatly made metallic insert for the bung might be an improvement.
Cheers & Phew
Paul
Scared me witless - its all going thru my mind - all this time on chips (and the new set I'm brewing now) with an engine at 119k miles - I'm thinking that something major has bit the dust and I can almost see the extra zero being added to my Visa bill. Oh sh*t
Car is still pulling OK, no smoke, pressures & temps OK and I'm less than a mile from home. I carefully bring her back home and am sure that I can smell exhaust gas, thinkin' I must have cracked something...
Then I remembered that just yesterday I had fitted the CO measuring tube onto my exhaust downpipe (these were only fitted on 3B in the factory) so I wondered had it worked loose... Oh no - the attached photograph tells the story much better. Too much of a coincidence.
Guess the factory bung (brand new) ain't rated for the kind of exhaust gas pressures when humping 1.45 bar around. The bung didn't last 50 miles so I gotta wonder has anybody else had this happen to them. Maybe I got a dufff bung.
Must admit it didn't feel somehow right when I squeezed it on so there's 20:20 hindsight for you. I'm thinking that a neatly made metallic insert for the bung might be an improvement.
Cheers & Phew
Paul
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