Results 1 to 7 of 7

Thread: M5 Cam timing - is this close enough

  1. #1
    Join Date
    Oct 2010
    Location
    London
    Posts
    57
    My Cars
    Peugeot 206 GTI (1.1)

    M5 Cam timing - is this close enough

    Hello everyone,

    I have a an E34 M5 with B38 engine that I have made a turbo system for. Lots to say about that but I will just leave a picture here:



    Want some help regarding cam timing. I put a thicker MLS gasket and timed the motor but one of the marks (intake) is slightly off, but as you know we are limited to changing a teeth in the sproket so I want to know if you consider this difference acceptable?

    Actually, a little less overlap is not too bad for a turbo engine...


    Here are the pictures - crank is at TDC, Exhaust cam is spot on and Intake cam is the one slighly off.






    Slightly off intake








    Spot on exhaust






    Another picture of intake




    Having trouble starting the engine and want to rule out the cam timing as a possible cause.

    Thanks for your help.

    Regards,
    Paulo

  2. #2
    Join Date
    Oct 2014
    Location
    Latvia
    Posts
    80
    My Cars
    1988 BMW e34 525i
    That small of a difference should not really affect the engine starting. It may change the power curve just a little bit, but nothing major.

  3. #3
    Join Date
    Oct 2010
    Location
    London
    Posts
    57
    My Cars
    Peugeot 206 GTI (1.1)
    Thanks Maxzzz. I actually used my head and realised I have in fact advanced the intake valve, increasing overlap. But I tend to agree with you. This is all a very small margin and should not change things significantly or stop the car from running.

  4. #4
    Join Date
    Oct 2010
    Location
    London
    Posts
    57
    My Cars
    Peugeot 206 GTI (1.1)
    Running out of ideas here and still can't start the damn thing.

    Starting to think if I installed the intake valve in place of the exhaust... would this prevent the engine from running?
    Any easy way to check?

  5. #5
    Join Date
    Oct 2010
    Location
    London
    Posts
    57
    My Cars
    Peugeot 206 GTI (1.1)
    Just found out its the same cam for intake or exhaust so that is not the reason...

  6. #6
    Join Date
    Nov 2016
    Location
    Charlotte, NC
    Posts
    537
    My Cars
    '02 540i-6, '97 540i-6
    If you're having a hard time getting it started, I suggest starting another thread with that as the topic line. You'll prob get more help that way.

  7. #7
    Join Date
    Mar 2011
    Location
    Neverland
    Posts
    1,729
    My Cars
    E34 525i
    alright if youre having starting issues you first need to see if you have fuel or spark. easiest test is spray some brake cleaner in the intake and see if it cranks up for a sec. if it does you have fuel issues. if it doesnt you have ignition issues.

Similar Threads

  1. m42 Cam Timing Revisited
    By Fraser in forum 1983 - 1991 (E30)
    Replies: 21
    Last Post: 03-11-2010, 09:59 PM
  2. m5 cam gear
    By gol10dr1 in forum Forced Induction
    Replies: 1
    Last Post: 11-28-2004, 12:06 PM
  3. Rebuild time is getting close
    By BetaTested in forum 1975 - 1983 (E21)
    Replies: 7
    Last Post: 03-22-2004, 11:32 PM
  4. Need advice on who to take my car to in GA for cam timing....
    By FastM in forum 1992 - 1999 M3 (E36)
    Replies: 14
    Last Post: 02-05-2004, 11:14 PM
  5. cam timing ?
    By M3corey in forum 1992 - 1999 M3 (E36)
    Replies: 7
    Last Post: 01-14-2003, 12:04 AM

Bookmarks

Posting Permissions

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