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Pete Lewis

TSSC AO
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Posts posted by Pete Lewis

  1. the chance a nylock will do anything to stop a coupling from shuffle undoing is remote 

    in all the torque testing we were involved with in trucks was they were useless an many fixings reverted to plain nut and washer .

    there are two types of  triumph diff preload spacers   castle nut and pin  has a solid spacer 

    nylock nut   uses a collapsible spacer

    a solid spacer will maintain the preload its set with shims when you mess with the nut.

    the collapsible spacer will maintain its size and the preload if the nut is replaced to the same torque and position as of the factory fit,

    overtighten can overload the pre load , loose and you reduce the pre load .

    pre load is required to keep things in mesh under ll the variable loads put through the geartrain

    take care when hooking the oil seal you do not get hold of the outer brg. roller cage !!!!

    and dont forget to top up the oil levels  and if you want quieter diffs try EP140 GL4 

    but not in the gear box

    pete

     

     

  2. 15 hours ago, Iain T said:

    Question is are there differing aluminium washer thicknesses available?

    i guess thats down to who supplies /gets em from    the base spec all should be the same its not known to be "shimable"  its only the holder dimensions the counter bore and the washer that control the holder height   so youre into some juggling !!!!

    Pete

  3. if you remove the cap from the top of the operating needle and run at 20mph you should get a good squirt of oil , there is a test proceedure 540/560 psi from that port .

    if you get a squirt  remove the ball and spring  and withdraw the needle/spool  it has a small hole through its centre  it must be clear they do get blocked 

    have you cleaned the filter and magnetic rings inside the plate opposite side of the solenoid/lever cover ???

    Pete

  4. are both carbs ex rootes group    if so both will have a choke starting valve and there will also be a push and twist choke stop to give you summer/winter choke travel

    triumph never fitted that refinement  small brass knurled  knob  with spring you push in and turn to reposition the choke stop ,,,quite clever

    if you have two starting chokes  do you have a twin cable to operate both together ????   

    (with an avid hate of pancack filters )

    Pete

  5. 7 hours ago, Alan J said:

    always running too rich,

    springs do actually richen the mixture as the air velocity under the piston is increased and you pull

    more fuel from the jet

    rich running will give you hot starting problems you need to find just what needle spec is fitted

    the hunter with 1725 cc pulls more air than  the 1600...

    having pancake filter then that weaken the mixture as you reduce the vacuum in the intake

    so adding a spring may actually help the pancake ...all  good for headaches 

  6. it doesnt matter much what car the base carb was from what does matter is has it been converted to

    the correct spec for a 1600

    the 1600 stroms do not have a damper/air  piston spring but do have a thicker(heavier) diaphragm

    ring .   1600  needles are  normally  7B    if you have pancake filters thats a whole can of worms 

    with little to advise on what if any needles are available   

    Pete

  7. plastic based fuel lines were common in the late 70s for many  manufacturers

    if the bore is around 5/16 " its fine 

    1/4" and 5/16" seems to be commonly used across the range and various model years

    the long length of old rubber may be a bigger problem with old and fake fuel hose being sold 

    Pete

     

    • Thanks 1
  8. if the rubber body is sound and still attached to the mount plate any flaking around the edges is 

    quite normal 

    as said its easy to find the replacements are worse than the old ones 

    Pete

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