head skim with ph4's

1. vts-luke Established Member Joined: Dec 2008 North Posts: 1206

   #1 25th August 2010, 12:02

   Im wanting to get my vts head skimmed before rebuilding it all back up with high comps and ph4's.
   main reason for wanting it skimmed is just for piece of mind that the surface is flat, would want to use std size citroen h/g.
   how much could i get skimmed off without running the risk of piston/valve clash?
   
   thanks
2. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #2 25th August 2010, 22:48

   dry build the engine with no gasket -with lump of clay (playdoh) on top of piston --then turn over by hand and you will see how clearance you have

   1 user thanked this post: vts-luke
3. VTRelite Saxperience Forum Bum Joined: Dec 2008 Gloucester Posts: 3000 Citroen Saxo VTR Renault 5

   #3 25th August 2010, 22:51

   Just get the head pressure tested etc to make sure it is flat instead of just straight up skimming
4. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #4 26th August 2010, 11:25

   Quote:

   Originally Posted by VTRelite Just get the head pressure tested etc to make sure it is flat instead of just straight up skimming

   how will that tell him how much piston valve clearance he has --maybe the head has already been skimmed before?
   once you know how much you have then you can skim to get best comp ratio possible--you will nt get it too high
5. user_10176 Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)

   #5 26th August 2010, 13:37

   Yer like john said, but if the head was ok before a lite skim should be ok, should do a dry build first though.