>So David Carment says:
>> 
>> These tubes can actually be stretched back to their original length (Muir
>> describes the procedure). Better yet is to buy new ones with NEW seals of
>> course. DC -- 
>> 
>
>I think the Muir stretching method for push-rod tubes was meant only for 
>the earlier Type I tubes that have the accordian type ends on them and
>not for the later Type IV engine tubes that are one solid piece.
>
>

Hey, I said the same thing, and damnit you're right! Getting my years 
(partly) confused, since I did say the word 'O-ring'.
tim s.