Here’s a story to share;
Similar to a few other folks heading for Spa next week – I too have had another setback [or two].
After making the decision to get the professionals in to fix the whining gearbox & the ‘smoky exhaust’ problem (actually turned out to be over-fueling caused by the eng.temp sensor being out of spec). The only remaining issue was what felt like a mis-fire during cruising (accelerating seems ok) and I spotted a real dirty plug in cyl4.

So I’ve changed HT leads , all plugs, Dist-cap & rotor. Thinking this will be ‘job done‘ and fit for Spa. Wrong – the mis-fire ‘feel’ is still there…. Although it goes away when the throttle pot is disconnected, so I’m thinking its a fueling/ecu/sensor issue – as base map (default running) is pretty much ok. I’m now looking for a replacement throttle pot at reasonable cost – where to buy or any new ideas for this one would be appreciated.

However to make the job a little more interesting, the old girl then decided to throw a strop in the driveway and the clutch pedal has suffered a ‘lock up’ issue. In which the engine runs and all gears can be selected but has no drive through to the wheels. Clutch is clearly operated but the pedal is up ! agghh.

Fortunately the splendid chap that sorted my re-conditioned gearbox – Steve Darvill at SDautotec (near Boroughbridge) is now in the process of saving my holiday (& bacon). He has discovered the thrust bearing fitted a few weeks ago has collapsed & held in the clutch. With the select fork returning to normal, so back filling the hydraulics & holding up the pedal. He is doing all the correction work at his cost & even covered the trailer collection from my home. Absolutely terrific service !

Had this been a euro-box garage I would have expected at least the half-hour argument – but it looks like I’ll be back on the road for this weekend, giving it the final shakedown before Spa. SD Autotec would get my recommendation on every occasion…

jacksocket – Piston Heads website