Did this behavior correlate warmer weather?  Maybe they are bleeding down more than usual. 

By the way, I'm not sure if it would help in your case, but I used 10w60 synthetic oil in my WBX with good results.  Mobil 1 15w50 was also good. Thinner oil should pump up more quickly when cold in theory. 

Chris. 

Wysłane z iPhone'a

Dnia 4 sie 2015 o godz. 10:20 Spencer Allen <spencervw@AOL.COM> napisał(a):

> The lifters on my 85 1.9 Westy seem to take longer to pump up lately. The chatter/banging used to go away after about 10-15 min of driving but now takes about an hour or more of around town driving to quiet down. I only drive it  during the summer on camping trips or occasionally  around town just to run it between trips and it is stored in winter. I use 20/50 oil with a shot of MMO. Is this slow pump up doing anything serious to the valves or drive train? Thanks for any advice.
> Spencer