Jump to content

AlanG

TR Register Members
  • Content Count

    466
  • Joined

  • Last visited

Posts posted by AlanG

  1. Hi All,

    Just did a full engine rebuild and wondering if there is too much oil going to the rockers. This then collects in the PCV and flows back into the intake.

    Observation one is that the valve cover baffle is a bit makeshift, so have made some simple drain modifications there. The other is maybe there is excess oil reaching

    the rockers and misting. At this point It is likely too soon to subscribe to the "remove PCV and use draft tube" solution.

    So am wondering how many folk use an oil restrictor under the pedestal? Was the external oil feed a competition alternative or a lack of oil solution?

     

    Cheers,

    Alf

    At Saturdays engine seminar at TRGB Gary /Jason mentioned that there was more than enough oil supplied to the rockers without modification. The only times they came across an external oil feed was if the rear oil gallery supplying the rockers had become restricted and the external oil feed fitted as a cure.

    Alan.

  2. Hello Alan,

    Please see my (earlier) post entitled TR4A IRS AXLE NUMBERS - I wonder if you could please provide your car's build date and (approx if you prefer) chassis number to help my table?

    Many thanks

    Tony

     

    Build Date 19/09/66. Chassis No. CTC 73477 L. Eng. No. CT 73602 E. Diff. No. CTC 66298. LHD US Export IRS car.

    Alan.

  3. I'd bet on the pulley too -- good idea, Bob. Those things can make an awful mechanical racket when they're wobbling just a little bit.

     

    I'll double check the pulley in the morning. Thanks guys.

     

     

    "So I wondered if a sticking valve could have hit a piston. But I thought this could not happen on TR 4 pot engine."

     

    What "deck height" are you running ?

     

    Mick Richards

     

     

    Hi Mark,

    No idea I'm afraid. I did rework the head a couple of years ago but did not have it skimmed. I refitted it with a standard gasket.

    Alan.

  4. The reason for this question is that my 4A engine suddenly made a loud clattering engine speed related noise which disappeared after a couple of minutes and did not return during careful 40mph drive home. Thought it was the chain tensioner at first but this has been ruled out. Also removed sump but nothing suspicious found and no visible damage to valve gear. So I wondered if a sticking valve could have hit a piston. But I thought this could not happen on TR 4 pot engine. Hence my question. I have ordered a wifi endoscope and will look for any damage to a piston anyway and will do a compression check soon as I can collect the tester from a fellow club member.

    Alan.

  5. Thanks for the replies folks. Water pump, heater fan, dynamo rev counter and rocker cover all appear ok. As there is no mystery noise at the moment I will continue to drive it. Hopefully it won't happen again but if it does maybe there will more clues to diagnose the problem.

    Alan.

  6. During our latest TR run my 4A suddenly starting making a noise that sounded like the fan catching something. It's an electric fan that wasn't running so that was ruled out. The noise was defo engine speed related and increased with an increase of revs. Took the rocker cover off, thinking a tappet problem but nothing appeared wrong. The noise then disappeared. Drove the car home, 25miles, with no noise or any problems. Oil and temp were fine. At home have removed the timing chain cover, the sump and the plate at the bottom of the bell housing. with nothing untoward found. Gearbox oil was also clear of any debris. Any ideas what the cause of the noise may have been and what to do next?

    Alan.

×
×
  • Create New...

Important Information

Please familiarise yourself with our Terms and Conditions. By using this site, you agree to the following: Terms of Use.