Dwell Meter Questions
  • Register
  • Help
Results 1 to 7 of 7
  1. #1
    Fellow Frogger! Peter J's Avatar
    Join Date
    Jul 2003
    Location
    Dubbo NSW
    Posts
    198

    Default Dwell Meter Questions

    Hi all,

    I found my dwell meter in the shed today but the instructions are no where to be seen. Is it one clip to an earth and the other to one side of the coil and the induction pick-up on No. 1 spark plug lead?

    I can't remember now? Can anyone confirm that for me?

    And I know this question has been asked before, but if the dwell angle is too low do I open or close the points?

    Peter J.

    Advertisement
    PJ

  2. #2
    Budding Architect ???? pugrambo's Avatar
    Join Date
    Jul 2000
    Location
    Parkes - N.S.W - Australia - Earth
    Posts
    12,256

    Default

    you need to put the red lead on the opints side of the coil and the black to earth

    to adjust the points it depends on the dissy

    some are externally adjustable and the others you need to take the cap of and adjust by loosening the screw and moving the fixed point of the points

    my advice is set the gap as per the manual and go from there
    3 x '78 604 SL

    1 x '98 306 GTi6

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0


    WTD long range fuel tank for 605

  3. #3
    Fellow Frogger! PCOATES505's Avatar
    Join Date
    Jun 2002
    Location
    Gunbower
    Posts
    384

    Default

    Quote Originally Posted by Peter J
    Hi all,

    I found my dwell meter in the shed today but the instructions are no where to be seen. Is it one clip to an earth and the other to one side of the coil and the induction pick-up on No. 1 spark plug lead?

    I can't remember now? Can anyone confirm that for me?

    And I know this question has been asked before, but if the dwell angle is too low do I open or close the points?

    Peter J.
    Peter,
    If the dwell is to big the gap is to small and vice versa.
    Pete

    I am gunna get another 403 on the road........one day

  4. #4
    Fellow Frogger! Peter J's Avatar
    Join Date
    Jul 2003
    Location
    Dubbo NSW
    Posts
    198

    Default

    Quote Originally Posted by PCOATES505
    Peter,
    If the dwell is to big the gap is to small and vice versa.
    Pete
    Thanks Peter and Rambo. Just one more question ... and probably a stupid one. Does this all happen with the motor running or in some static manner with the ignition on and the HT lead on the coil disconnected? I seem to recall it is measured with the engine running but I don't want to destroy my meter ... just checking?

    Peter J.
    PJ

  5. #5
    Budding Architect ???? pugrambo's Avatar
    Join Date
    Jul 2000
    Location
    Parkes - N.S.W - Australia - Earth
    Posts
    12,256

    Default

    Quote Originally Posted by Peter J
    Thanks Peter and Rambo. Just one more question ... and probably a stupid one. Does this all happen with the motor running or in some static manner with the ignition on and the HT lead on the coil disconnected? I seem to recall it is measured with the engine running but I don't want to destroy my meter ... just checking?

    Peter J.

    Peter

    you will need the engine running

    also remove the vac advance line, have the car at operating temp
    3 x '78 604 SL

    1 x '98 306 GTi6

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0


    WTD long range fuel tank for 605

  6. #6
    1000+ Posts Gamma's Avatar
    Join Date
    Oct 2004
    Location
    Picton NSW
    Posts
    1,412

    Default

    Quote Originally Posted by pugrambo
    Peter

    you will need the engine running

    also remove the vac advance line, have the car at operating temp
    To check that the vacuum advance is working. Re-attach the tube and point the light, (this assumes that it is a combination dwell and strobe light unit) and watch the marker advance/retard as the revs rise and fall, (slowly up and snap off throttle).
    On the unit I have you can dial in a set advance for a specific rev count and the marker will be at TDC, ((by strobe) all going well).
    If the cam lobes on the dizzy are worn, then setting the dwell to spec will give you too much advance. A wandering advance scattered TDC marker or secondary strobe point for the TDC marker can indicate uneven wear of the lobes or a bent dizzy shaft (different dwell for different cylinders-consistent readings)/worn bushes in the shaft (dwell up and down for all cylinders like a mad womanís under cloths), (you may need to mark a TDC point for each of the cylinders or one TDC and one BDC (@90DEG) swapping to each of the cylinder leads as need be). Donít panic it has to get pretty bad before you notice any change in the cars running.
    /// 1986 SII 505 GTI
    2003 T5 307 HDI
    2013 LandRover90
    Sacred cows make the best hamburger mince.
    If you run, you only die tired

  7. #7
    Fellow Frogger! Peter J's Avatar
    Join Date
    Jul 2003
    Location
    Dubbo NSW
    Posts
    198

    Default

    Thanks Fellow Froggers.

    Dwell meter all sorted. It is amazing how well amd engine runs when it is tuned properly!

    Peter J.
    PJ

Thread Information

Users Browsing this Thread

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

Posting Permissions

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