Hi, I normally post on here about my Healey 100. But this week I had a friend come round with his Healey 3000 for a tune up. Something does not make sense. In the SU book page 44 it quite clearly says the HD8 has to have a dustproof damper as internally vented. But on page 106/107 the details for the BJ8 clearly says UH needle and AUC8112 damper which has a vent. I.e. non dust proof. It also says a very heavy spring AUC4826 called the Red/Green 11.25oz. To get the car to idle properly with 15 BTDC the jets are very high almost on the bridge only about one to one and a half turns down, but plugs still look too rich !!!! This all seems very odd to me, as my other car is a Jaguar XK120 with two HD8’s. In that case I have the jets set at 0.07 down which is about two and a half turns. The needles are slightly richer UN’s. The damper is the correct dust proof and the spring is the lighter Blue/black 4.5oz.
What is the explanation for this strange combination, from an SU or tuning expert. I can’t see why the BJ8 should not have the same normal combination as my XK120
What is the explanation for this strange combination, from an SU or tuning expert. I can’t see why the BJ8 should not have the same normal combination as my XK120