right, after some extensive research and now testing... I can to supply rebuild kits for g40s and one off spares should people need them. Each part is the same as a g60 apart from the centre bearing
Viton oil seals - the same as a g-werks and psd chargers i recently serviced (size and make)
2x scroll £13 each - £25 the pair
1x outlet side £5.00 each
1x inner pulley side - £7.50 each
1x outer pulley side - £7.50 each
full set £40
FAG bearings
2x countershaft bearings £5 each
Uprated SKF top bearings (low friction seals £10 each
1x pulley side main bearing £6.50
1x outlet side bearing (these are often not replaced as they can be hard to get out and they are a dear bearing) £43
1x IKO scroll bearing (IKO have been in PSD/Gwerks Chargers) £18
Full set of normal bearings £70, with uprated top bearings £80
Optibelt/Gates - as used originally - but 12mm wide timing belt £6
1x set of apex seals. Remade for us in Sintimid beige compound as used by vw in the 1993 (the same company!) onwards supercharger. Beware of rolls of cheap stuff being sold on ebay - this is massproduced crapola. These are cut to oem specs and are aperfect fit
£65 a set
£175 - full set £185 with uprated top bearings (incl a set of casing bolts)
top scroll bearings - obsolete from FAG, but this is as supplied by max-rpm and bartek £42
for £3 can also supply a set of 12.9 zinc coated bolts for the casing
NOW i can supply bonding agent for the seals - as used on g-ladersiete.de./maxrpm - good stuff £7 for 10g
30g of kluber grease - brilliant stuff - charger needs to be apart to use though! £5