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tr4

  1. T

    TR4/4A Flywheel... Lightened or Stock, that is the question

    I have a 1963 TR4 that I am rebuilding the engine from the block up. I have a new Findanza aluminium flywheel. I am increasing the bore to 87mm, and installing a very mild cam, otherwise it is a stock engine. What are the pros and cons of the lighter flywheel?
    • TriumphantMan
    • Thread
    • clutch engine rebuild findanza flywheel tr4
    • Replies: 14
    • Forum: Triumph
  2. doughairfield

    TR4/4A Intermittent vibration at 3000 RPM

    Good Morning, I've got a bit of a conundrum. I've got this irregular vibration which appears to be somewhere in the driveline on my 1964 TR4. The vibration only starts when you pass 3000 RPM under power and it’s irregular. I think I can feel the vibration most in the gear shift lever but I can...
  3. A

    TR2/3/3A Tr3 / 4 piston clearances

    Hello All, Ok so I am in the process of reassembling my tr3 engine with almost all new parts! With only 54K on the car I was astounded at the amount of wear i found! I have purchased the 87mm liner piston and ring set from one of the three big parts houses. Upon sitting down to check my ring...
    • aserftr3
    • Thread
    • clearances liner piston tr3 tr4
    • Replies: 7
    • Forum: Triumph
  4. Tim Tucker

    TR4/4A Dis-assembly of fresh air duct

    Hi all! I'm in the middle of a dash project. Looking for anyone that can offer advice removing the 'valve'(AP3) and 'spindle'(AP4) from the fresh air duct. Below is a copy of plate AP from the TR4 parts manual. Any help is greatly appreciated. The only option I see is to use a long punch and...
    • Tim Tucker
    • Thread
    • air dis-assembly duct fresh tr4
    • Replies: 8
    • Forum: Triumph
  5. A

    TR2/3/3A First Time TR3A Owner with stuck engine

    Hello All, I have recently picked up an all original 61 Tr3a with 54k miles that has been sitting in storage for 20+ years. Upon getting it home and in the garage i set to work rebuilding the brakes and filling what little rust I have in the floorpans. The only holdup now seems to be the...
    • aserftr3
    • Thread
    • engine seized tr3 tr3a tr4
    • Replies: 10
    • Forum: Triumph
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