Determining zero lash questions???
Thread Starter
Instructor
Joined: Mar 2001
Posts: 181
Likes: 0
From: Swansea, IL, USA
Determining zero lash questions???
I'm putting on my new 1.6 RR. Well, I have a good understanding of what lash is, but I am unsure of how much strength my thumb and forefinger should exert in order to determine the zero. should I use a REALLY light spin on the pushrods while I slowlly tighten the nut, then stop the nut when the light pressure won't twist the pushrod? or should I thghten the nut until I can't spin the pushrod with all the energy my 2 fingers can exert? I'm sure you all have it down to an art... and I need to be more educated before I go and put these on...
Also, on the new RR I noticed the small hex nut that fits inside the rocker nut is to be torqued to "15-20 ft/lbs"... well I'm using a little alan wrench, and don't have and sockets to pit on the end of my torque wrench... so is the good judgement/estimate of that torque good enough, or should I get some of the hex head sockets?
THANKS ALOT!!!!!!!!!!!!!!! :yesnod: :yesnod: :yesnod:
Also, on the new RR I noticed the small hex nut that fits inside the rocker nut is to be torqued to "15-20 ft/lbs"... well I'm using a little alan wrench, and don't have and sockets to pit on the end of my torque wrench... so is the good judgement/estimate of that torque good enough, or should I get some of the hex head sockets?
THANKS ALOT!!!!!!!!!!!!!!! :yesnod: :yesnod: :yesnod:
Le Mans Master
Joined: Aug 1999
Posts: 7,338
Likes: 137
From: WilkesBarre PA
Re: Determining zero lash questions??? (R Cook 92)
You spin the pushrod till you just feel very slight resistance, then tighten an aditional 1/2-3/4 turn. Then while holding the adjusting nut tighten down the center locking screw.
Le Mans Master
Joined: Nov 1999
Posts: 8,511
Likes: 3
From: Memphis, Tn
Re: Determining zero lash questions??? (R Cook 92)
You'll find out that the difference between "very light resistence" and "can't turn it with all my might" is maybe 1/16 or 1/32 of a turn. Won't really make any difference in the end. Personally, I adjust to until a start to feel drag.
Drifting
Joined: Aug 2001
Posts: 1,500
Likes: 0
From: Holliston MA
Cruise-In VII Veteran
Re: Determining zero lash questions??? (R Cook 92)
Forget the spin method. Lift up and down on the push rod while tightening the nut. Then you'll get zero lash. Then see how little resistance there is to spin. :eek:
