Post by dadbif on Feb 28, 2021 10:59:52 GMT
Mystery, yesterday went for top down waz, running beautifully, until, what felt like hesitancy accompanied with distinct change in exhaust note. Stalled at next junction.
A mantle of gloom descended m, but lifted when she fired up again, but wouldn’t idle and ran “evenly but rough”.
Pressed on home, oil pressure, water temp all fine, but still with muffled exhaust sound.
When I got back in the garage there was a strong smell of burning paper (eliciting complaints from the memsahib).
Engine bay temperatures felt normal, however, I have twin exhaust fed from a single transverse back box, the left hand tip was far too hot to touch, the right hand tip was cool.
I started her up this am with tablet connected and ignition advance showed 16 degrees, but only ran for a few seconds before cutting out.
CAS hasn’t moved.
I am leaning towards a blocked exhaust, the paper smell coming from the internal wrapper on my catalyst.
Any other suggestions before I start pulling things off?
Left hand pipe
Right hand pipe
A mantle of gloom descended m, but lifted when she fired up again, but wouldn’t idle and ran “evenly but rough”.
Pressed on home, oil pressure, water temp all fine, but still with muffled exhaust sound.
When I got back in the garage there was a strong smell of burning paper (eliciting complaints from the memsahib).
Engine bay temperatures felt normal, however, I have twin exhaust fed from a single transverse back box, the left hand tip was far too hot to touch, the right hand tip was cool.
I started her up this am with tablet connected and ignition advance showed 16 degrees, but only ran for a few seconds before cutting out.
CAS hasn’t moved.
I am leaning towards a blocked exhaust, the paper smell coming from the internal wrapper on my catalyst.
Any other suggestions before I start pulling things off?
Left hand pipe
Right hand pipe
le sigh