mtb_tuli
Active Member
as I had HIFs already on my car, my decision to overhaul them was easier. Had made some search on the net and here you will quickly find some helpful advices on Volvo forums or Volvo sites from hardcore users because they used the same SU models over the years. It´s like Ron and Harvey say, HIF is preferred also especially for the jet sealing and adjustment on HS which obviously requires guys who are used to work with SUs. If you could get a pair and it´s complete (it´s easy to check if they are complete, take a manual from the internet and compare, they do not have much levers etc), I would take those.
I have ordered a service kit from Burlen (together witch some richer needles as I have made some mods), but before carrying out this work (never done before), I had given away the carbs for blasting with special granulate. They look like new, you just have to clean everything carefully afterwards, but you have to dismantle them anyway. The pics from the Burlen manuals are , so look for better/larger illustrations on the net, you will need them when adjusting jet heights, float adjustment. Polish the dashpots also and you will finally very happy when everything is back in the engine bay.
Before you start dismantling, make photos from each carb from every side and do not mix the ID-tags (the small tags at on of the dashpot screws). Separate each carb, when working on them one after the other (means, do not dismantle both together, that´s for the pro´s).
BTW, I have also bought adjustable rods (short one from manifold to first carb and larger one for connection of the two carbs), it´s now more precise and final synchro is easier. And it looks better.
I have ordered a service kit from Burlen (together witch some richer needles as I have made some mods), but before carrying out this work (never done before), I had given away the carbs for blasting with special granulate. They look like new, you just have to clean everything carefully afterwards, but you have to dismantle them anyway. The pics from the Burlen manuals are , so look for better/larger illustrations on the net, you will need them when adjusting jet heights, float adjustment. Polish the dashpots also and you will finally very happy when everything is back in the engine bay.
Before you start dismantling, make photos from each carb from every side and do not mix the ID-tags (the small tags at on of the dashpot screws). Separate each carb, when working on them one after the other (means, do not dismantle both together, that´s for the pro´s).
BTW, I have also bought adjustable rods (short one from manifold to first carb and larger one for connection of the two carbs), it´s now more precise and final synchro is easier. And it looks better.