User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: Top end rebuild

  1. #1
    Regular Member MrSpike's Avatar
    Join Date
    Aug 2008
    Location
    Devon
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default Top end rebuild

    Hi,

    Quick question - I have just replaced the cylinder head on my 2.0 DTi Vectra (Y20DTH)

    This is the first time I have ever attempted any work on an engine, so nothing like a baptism of dervvy fire!

    The car starts and runs but is very rough - metallic sounding rattle and oil pressure warning light comes on. A friend suggested perhaps I'd forgotten to fit an 'oil pressure regulator valve' meaning either too much or not enough oil is making it to the head and flooding / starving the hydraulic tappets which would explain the low oil pressure warning and noisy top end.

    Have searched Google and Haynes Manual and no mention of such a valve.

    Anyone hazard a guess at what I've done wrong??? There was nothing wrong with oil pressure when I dismantled engine.
    Cheers
    Spike

    PS I intend to make some notes on these forums about my experiences of changing a head when I get the car running properly and have some spare time

  2. #2
    Regular Member jonnybravo's Avatar
    Join Date
    Jul 2009
    Location
    barnsley,yorkshire,GB
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Signum


    Engine : 20 Dti


    Default

    Hi spike
    you have't used sealant on the head gasket have you,if so you may have blocked the oilway supplying the top end

  3. #3
    Regular Member MrSpike's Avatar
    Join Date
    Aug 2008
    Location
    Devon
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Hi Jonno,

    No I didn't use sealant for the head gasket but thanks for the suggestion. A couple other people have suggested perhaps I put the gasket on back to front but it is not symmetrical so could only go on one way.

    A mechanic mate had a very quick look and he says there is deffo no oil getting to the cylinder head, the cam was almost dry when started.

    I'm started to think that perhaps I dropped something solid down one of the oilways and this has caused the oil pump to fail. I think I'm going to get her towed to a garage who has the equipment to test oil pressure. Bit of a bummer.

  4. #4
    Regular Member MrSpike's Avatar
    Join Date
    Aug 2008
    Location
    Devon
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Two other thoughts -

    1) Air lock in the oil filter. Someone told me this is a common problems in engines such as the Rover V6. Anyone experienced this?

    2) The reconditioned head I bought does not match the one I took off, i.e. the oil ways are in different places. Does anyone know if there was ever differences in the designs of Y20DTH cylinder heads?

    I'm going to remove the oil pressure valve tonight and start the engine. oil should **** out if the oil pump is a ok.

    Remove the rocker cover and have a poke around, perhaps change the oil for Vauxhall fully synthetic and check the filter to make sure it's correct.

    Damn it car!! please work...

  5. #5
    Regular Member phykell's Avatar
    Join Date
    Apr 2008
    Location
    Cheshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    ...the oil ways are in different places...
    Surely this means that there's no way can you use that head now?

  6. #6
    Regular Member ptrehearn152's Avatar
    Join Date
    Jan 2009
    Location
    norfolk
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    i know you said the gasket is not symetrical and wouldn't go back to front but is it possible it would go upside down? thus blocking an oil way.

  7. #7
    Regular Member MrSpike's Avatar
    Join Date
    Aug 2008
    Location
    Devon
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Quote Originally Posted by phykell View Post
    Surely this means that there's no way can you use that head now?
    no that was a suggested by someone. I don't think it's true but I just wanted confirmation

  8. #8
    Regular Member MrSpike's Avatar
    Join Date
    Aug 2008
    Location
    Devon
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Quote Originally Posted by ptrehearn152 View Post
    i know you said the gasket is not symetrical and wouldn't go back to front but is it possible it would go upside down? thus blocking an oil way.
    well the head gasket is this shape :-

    |-------------|
    |.... O O O O. |
    |...|----------|
    |__|

    so if it was flipped horrizontally there would be a bit of gasket hanging out the front right hand side of the engine
    if it was flipped virtically there would be a bit of gasket hanging out the rear left hand side.

    although I am a bit absent minded so if it comes to it I might have to remove the cylinderhead again to cheack

  9. #9
    Regular Member ptrehearn152's Avatar
    Join Date
    Jan 2009
    Location
    norfolk
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    ok only trying to help

  10. #10
    Regular Member KTM Chris's Avatar
    Join Date
    Nov 2007
    Location
    North Lincolnshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Quote Originally Posted by MrSpike View Post

    2) The reconditioned head I bought does not match the one I took off, i.e. the oil ways are in different places. Does anyone know if there was ever differences in the designs of Y20DTH cylinder heads?
    This has surely got to be the cause of the problem?

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. Contemplating a suspension rebuild
    By BigWilko in forum Suspension, Wheels & Brakes
    Replies: 5
    Last Post: 29th September 2012, 22:22
  2. VW engine rebuild kit
    By Hummelshøj in forum Non Vectra C/Signum Album
    Replies: 2
    Last Post: 14th November 2011, 15:51
  3. rebuild
    By don paul in forum Non Vectra C/Signum Album
    Replies: 81
    Last Post: 20th June 2009, 14:30
  4. rebuild project day 6
    By glynn in forum Vectra C / Signum Car Chat
    Replies: 32
    Last Post: 8th July 2008, 11:20
  5. rebuild project day 4
    By glynn in forum Vectra C / Signum Car Chat
    Replies: 30
    Last Post: 3rd July 2008, 08:30

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

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
  •