Originally Posted by PaulD
Around the time the SX4 was introduced the hydraulic lifters were changed to shimmed buckets. Was there a J20 before the J20A?
As far as I know the J20A is the first release of the J20 series - however - the J20A was in existence for many years before the SX4 was introduced, and there are large quantities of the J20A engine out there with hydraulic lifters.
I am aware that later versions of the J20 use a bucket & ship arrangement, but cannot definitively state whether that is the J20A or J20B - what I will state is that there are J20A engines with hydraulic lifters and lots of them - RH420 Aerios, SV420 Vitaras (96~98) SQ420 Escudos, Vitaras & Grand Vitaras (98~05).
I don't have an SX4 part listing (they weren't sold here) so I can't tell you if any of them had hydraulic lifters, but there are certainly J20A engines with them.
The other thing I'll say is that to the best of my knowledge, the J20 engines with the bucket & shim lifters still have the hydraulic timing chain tensioners - they were used on the JB420 Grand Vitaras (06~) and at least from my point of view, the tensioners are more crtical to the life of the engine than the lifters - I can live with a noisy lifter, but a loose chain can break the guides which then drop into the sprockets and jam the chain - resulting in a VERY expensive repair.