Page 1 of 2 12 LastLast
Results 1 to 10 of 13
  1. #1

    Join Date
    Sep 2012
    Location
    Qc Canada
    Posts
    189
    +1
    10

    Head milling question.

    After blowing a head gasket last w-e, I decided to get the head "skimmed".
    So, when I went to pick it back up yesterday, I asked "how much did he took off?"
    Said .008, thought that was a lot, even nicked the valves as I left them in there.

    Is it OK to run it like that or can I get thicker gasket for the head or ?


  2. #2
    boost junkie skidoochris's Avatar
    Join Date
    Mar 2012
    Location
    Davison, Mi
    Posts
    4,653
    +1
    508
    you should be fine 8 thousands is not much
    thats barely more than a human hair
    Last edited by skidoochris; 06-27-2015 at 02:20 PM.

  3. #3
    Eastside Powersports Slow 91's Avatar
    Join Date
    Sep 2008
    Location
    River Crew CT
    Posts
    4,316
    +1
    564
    .008" isn't that much but the machine shop should have realized the intake valves come very close to the deck surface, and some heads the valves are actually above the deck with means they need to
    be removed, head decked, then reinstalled.

  4. #4
    if he nicked the edge of the intake valve? he took valve margin off. I would be very careful with that.. without a pic? its anyones guess..

  5. #5

    Join Date
    Sep 2012
    Location
    Qc Canada
    Posts
    189
    +1
    10
    Quote Originally Posted by joe w View Post
    if he nicked the edge of the intake valve? he took valve margin off. I would be very careful with that.. without a pic? its anyones guess..
    Click image for larger version. 

Name:	20150628_092751[1].jpg 
Views:	101 
Size:	72.9 KB 
ID:	363718
    Here's a pic of it. Reassuring to know my head is still good, thought maybe it was getting to close to pistons head or timing would be off.

  6. #6
    Water4fire's Avatar
    Join Date
    May 2005
    Location
    New Braunfels TX.
    Posts
    10,377
    +1
    874
    That would have pissed me off.


  7. #7

    Join Date
    Sep 2012
    Location
    Qc Canada
    Posts
    189
    +1
    10
    Yea it did piss me off, but seeing that's the "GO TO" guy for head milling and he wasn't to concerned about it, thought I shouldn't make a big deal out of it if it's not going to affect anything.Still OK to run or better not?

  8. #8

    Join Date
    May 2012
    Location
    California
    Posts
    1,824
    +1
    163
    Quote Originally Posted by Speedjunky64 View Post
    Yea it did piss me off, but seeing that's the "GO TO" guy for head milling and he wasn't to concerned about it, thought I shouldn't make a big deal out of it if it's not going to affect anything.Still OK to run or better not?
    your go to guy is horrible then, he should have known better than to surface that head with the valves installed. Maybe it's my ocd, but I would not run those valves.

  9. #9

    Join Date
    Sep 2012
    Location
    Qc Canada
    Posts
    189
    +1
    10
    That's the price you pay for living far from everything.
    I mostly blame myself on this,I should have looked more carefully, I would have noticed they are almost, if not flush with the head, so should have removed them.
    Why would you not run them? Risk of breakage?

  10. #10

    Join Date
    Dec 2009
    Location
    <---- over there
    Posts
    454
    +1
    27
    Just pull them and lighten. Will clean up fine

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Head install question
    By Sirhc7897 in forum 4-Tec Performance
    Replies: 2
    Last Post: 01-06-2008, 10:19 PM
  2. Head Gasket Question
    By race24x in forum Polaris Open Discussion
    Replies: 5
    Last Post: 09-14-2007, 07:15 AM
  3. head/cylinder question
    By porksword in forum Yamaha PWC Performance (2-stroke)
    Replies: 10
    Last Post: 07-16-2007, 09:21 PM
  4. Riva Head Installation question
    By howestek in forum Yamaha PWC Performance (2-stroke)
    Replies: 28
    Last Post: 03-04-2007, 08:51 AM
  5. head mill???
    By PAINKILLER in forum 4-Tec Performance
    Replies: 3
    Last Post: 02-15-2006, 07:45 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •