Jump to content

Pete Lewis

TSSC AO
  • Posts

    24,918
  • Joined

  • Last visited

  • Days Won

    578

Posts posted by Pete Lewis

  1. the only reason i see for having double the normal tappet gap is to stop the springs bottoming out 

    the Triumph spec is done on a cold engine if your cam manufacturer states  "hot"  then hot it should be  

    might be wrong but whats the point of having a higher lift if you have to reduce the valve opening by increasing the the tappet gap 

    seems just a must have you dont need the headache jobby that goes with it ????

    Pete

  2. canley classics and others  they come in 1/2" 3/4" and 1"   heres a couple of suppliers 

     Alloy Diff Spacers : Canley Classics

    James Paddock Limited - Triumph Stag, Spitfire, TR6, TR7, GT6, Vitesse, Herald Parts and Spares Specialists. REAR SPRING LOWERING BLOCK ALLOY 1/2 INCH SPIT MKIV/1500/GT6 DRIVESHAFT(SSP1)

    the deeper ones will probably need longer studs in the diff and then they fouls the tin cover  i used a !" and made a rubber cover from a mud flap 

    cant advise which to use as we had a courier spring fitted ,buy 2 thin ones and play but that adds costs 

    Pete

    • Like 1
  3. ive not looked a the specific specs of the various systems available the troubles of voltage may have been addressed

    they used to have a operational range of 6 to 18volts   and with a poor battery state on a cold day a ballasted coil can 

    drop below the 6v and give you problems hence why many add or bypass to give the unit  full ignition 12v supply 

    if it works as a ballast thats fine 

    the idea to bypass came about due to owners having problems , its not just a conjured up myth 

    pete

  4. finding out what goes where is a minefield of mixed ideas

    to an engineering point of view you need a solid alloy mount for the two front baulkhead brackets and two for the diff  x member   all others are one rubber and as many shims as you need to get a old wonky body to line up on an old wonky chassis   anything goes .

    the idea of solid mounts on baulkhead and rear tub to diff x member is you need the two parts to not shift about

    if on all  rubbers they wont hold their position for long and door gaps will de adjust ............  makes sense ????

  5. just check the geometry specification data you used  is unladen or as many are 150lb on each seat to set the static ride height 

    some gt6 spec is unladen but if not you need to get rent  a crowed  round or a bags of sand 

    especially important to get the rear toe correct to stop bunny hops on pot holes /rear wheel steering   etc.

    pleased you have some basic gear to check with 

    Pete

    • Like 1
  6. as you have amk3 there is a good chance you have temperature compensators on the side of each carb 

    small casing with plastic cover only held on with   2 screws  ( top adjustable CDSE150 ) 

    the small assy is also using two 0 rings to seal it to the carb body .

    these over time become quite useless and i the small plunger inside is not fully seated will bypass air round the throttle plates and you will never set the idle mixture or speed properly  the answer is to  remove the plastic cover and screw the small nut to CLOSE the plunger for good, it is a emission device to weaken hot engines mixture.

    if its open at normal  temps .  any adjustments you make will be wrong   get the ruddy things closed 

    as for mixture best remove the air piston and adjust the small delrin washer on the needle head to be level

    with the base of the piston thats the basic start setting point as used on production .

     

    • Like 1
  7. there was nothing special about herald units  all std lucas p700 type 

    used on so many other marques of british manufacture 

    and to liven up the old glow worms  get a relay kit and get full voltage at the front of the bonnet 

    saves the old switches and 14,5 volts is far more illuminating than the often 10.5 of voltage dropping 

    Pete

    • Like 1
  8. one with a 270 degree needle sweep you have to drill the manifold to collect manifold vacuum

    the pipe often needs a squash to damp needle vibrations 

    you aim for around 18-21 in.hg  (sorry im old school)

    any vac gauge will work doesnt need to car derived 

    a 4" Brass one is probably out of place  !!!!

    Pete

    • Like 1
×
×
  • Create New...