Poorly running rover V8 3,5 with SU HIF
Posted: Fri Jul 08, 2022 6:01 pm
I have a problem with my Rover V8 from an SD1. The engine has been overhauled (new bearings, valves, oil pump, camshaft, lifters, piston rings and valve guides). It is equiped with 2x HIF. The problem is, it does not pull well and is misfiring now and then. Swapped the ignition (amplifier, coil) and leads, plugs ect and this does not improve things. Did scheck the compression ratio and this is good on all cilinders.
I am thinking it is in the HIF carbs. I rebuild these with new shaft, bushes, needles and jets.
If i use the lifting pin trick on the carbs, one is reacting normal and the other is not. If i lift the piston the engine revs gets higher and what ever on adjusting the bolt, t does not change its behaviour. It always revs higher if i lift the pin.
I checked the float levels and how the jets are fitted and this all seems oke.
Thanks for your thoughts in advance
Peter
I am thinking it is in the HIF carbs. I rebuild these with new shaft, bushes, needles and jets.
If i use the lifting pin trick on the carbs, one is reacting normal and the other is not. If i lift the piston the engine revs gets higher and what ever on adjusting the bolt, t does not change its behaviour. It always revs higher if i lift the pin.
I checked the float levels and how the jets are fitted and this all seems oke.
Thanks for your thoughts in advance
Peter