Results 1 to 4 of 4

Thread: More Starting help Required

Discussions of Triumph motor cars

  1. #1
    Jedi Hopeful
    Join Date
    Apr 2007
    Location
    Netherlands
    Posts
    194
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    More Starting help Required

    Hello

    Almost there now hopefully with getting the engine started. Have solved the fuel issue and have set the timing etc according to the workshop manual. When I turn the key the engine turns and fires once, then stops. As it stops a strange screeching sound can be heard coming from the bellhousing which I guess may be related to the clutch/starter or flywheel but we'll come to that problem later.

    The carbs have been rebuilt professionally and are HS6's. I am figuring that the problem may lie here but I don't want to touch anything unless I make it worse. All the manuals I have talk about how to tune the carbs once they're running. So question is - what should I start to fiddle with first?

    Thanks for your help.

    Myles
    1959 Austin Healey BT7 (in restoration)
    1964 Triumph TR4
    1964 E-type Series 1 FHC (next project)

  2. #2
    Yoda Geo Hahn's Avatar
    Join Date
    Sep 2001
    Location
    Mt Lemmon, Arizona
    Posts
    9,368
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    14
    Thanked in
    13 Posts

    Re: More Starting help Required

    Quote Originally Posted by mylesw
    ...As it stops a strange screeching sound can be heard coming from the bellhousing...
    I think I'd want to know the source of that before going much farther.

    You might double-check the timing as it is not difficult to get it 180* off, which could give you some strange results (i.e. are you sure it is 'firing' and not 'backfiring'?).

    I assume the engine turned freely when the plugs were out.

  3. #3
    Great Pumpkin TR3driver's Avatar
    Join Date
    Aug 2003
    Location
    Sunny So California
    Posts
    19,421
    Thanks Thanks Given 
    8
    Thanks Thanks Received 
    122
    Thanked in
    114 Posts

    Re: More Starting help Required

    I'm guessing that your starter bearings are dry, and what you are hearing is them squalling when the starter starts spinning at high speed after the Bendix kicks out. Probably a good idea to pull the starter and lube it's bearings; but of course that won't solve the Bendix kicking out.

    Generally that is caused by one cylinder firing and the others don't pick up at the same time. Sometimes just trying again a few times (backing off the key each time and waiting for the starter to quit spinning each time) will do; but it seems to me that either more or less choke usually helps as well. You might also check that your chokes are reasonably well synchronized (ie both jets move by roughly the same amount with the knob locked out).

    In extreme cases, a spray of carb cleaner down each carb throat may also help. It acts like starting ether, better than the "starting fluid" they sell these days. But don't go overboard with it, as it can also wash the oil off the cylinder walls.
    Randall
    56 TR3 TS13571L once and future daily driver
    71 Stag LE1473L waiting engine rebuild
    71-72-73 Stag LE2013LBW waiting OD gearbox rebuild

  4. #4
    Jedi Hopeful
    Join Date
    Apr 2007
    Location
    Netherlands
    Posts
    194
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: More Starting help Required

    Engine started! Thanks for all you help with this. Couple of leaks in the cooling system that I need to address but otherwise looking okay.

    Thanks

    Myles
    1959 Austin Healey BT7 (in restoration)
    1964 Triumph TR4
    1964 E-type Series 1 FHC (next project)

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
  •