Hi All, The info I was referring to was Limbach TB 61. >From memory you can see a spot weld on the manifolds that have been modified. The problem usually occurs in a particular rev range and can be observed in EGT's.
Regards, John. On 5 February 2015 at 11:18, Catherine Conway <[email protected]> wrote: > I’ve seen similar thing on ARAs Dimonas. > > 2 plugs good > 1 lean > 1 rich > > -Cath > > > > > On 4 Feb 2015, at 7:02 pm, Rob Thompson <[email protected]> wrote: > > G'day all, > > We have a situation that I haven't encountered before on our L2000. > > The rear plug on the right side is very "fluffy" (not oily) black but the > front one is perfect colour. > > But they run off the same Carb! > > I assumed it must be a leak in the head to manifold gasket so I replaced > it with some good gasket sealant and it is still the same. > > Now the same thing is happening on the left side. > > I have always experienced that plugs running off the same carb look the > same. > > I have just reset the carb needles to the standard position after removing > heads and refacing valves. > > Any ideas? > > Rob > > Rob Thompson > 0429 493828 > > > >
