You were lucky getting the side bolts out.I'd say they have been taken out before.Not sure how the oil nips come out,as I said my automatic doesn't have them.With you height adjuster problem,once they are off the base the shaft that pokes out for the rod (front to back)(I think this is what you are asking)just pulls out.They will be tight as they have been in there a long time.I just carefully price them out with a screw driver.Some can take some time,but they will come out.You also will see on the opposite side the end of there shaft,just a small round piece.You can use a small punch (Not to hard) and knock them out that way.Those cokes ran right from the model 1 through to the model 5 so it does have the correct choke on it.Hope this helps,have fun with it all.