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Found 3 results

  1. Can anyone tell me what I should expect on a cold engine, at starter motor cranking speed? THANKS.
  2. This winters project is to finally undertake the engineering required for my 1972 TR6 to run on unleaded fuel. I've never been a worrier on this topic, as just 3k miles per annum whilst not really stressing the engine shouldn't be too much of a problem. However after last years bottom end rebuild, replacement camshaft, cam followers and pushrods with refaced rocker arms, I think something was telling me to finish the job. The engine runs smoothly enough however does breathe heavily at idle with the rich fume under acceleration with some oil consumption. So my plan was to test the compression and remove the head for the hardened seat installation, new valve guide and general refurb. I guess I'm just hoping the bores are still serviceable at this stage. The compression data (using a Gunson gauge) over 3 rounds of tests are on the attached file. Other aspects to note are I started with a hot engine, and the exercise took about half an hour. No 3 plug had showed signs of oiling up, all the others were good. I had fitted reconditioned injectors two summers ago. I would welcome comments on the data, my immediate thoughts are not too bad? the car has covered 133k miles since new and I've have had the car for 23 years and covered about 65k miles with only major engine work (bottom end) undertaken last spring. I don't know what was done to the engine before I had bought it. Oil consumption on my annual Le Mans trip is about 500 miles per pint, I do have drips on the floor too! There is some coke on the pistons, so my next question is what's the best method to clean this up. I haven't taken a head off an engine since 1981, so my experience is patchy. The head is at Carlows in Benfleet,Essex for the work. I have a few weeks to tidy things up, hence the questions. I'll probably send the metering unit off for calibration too. So in summary, thoughts on the compression data and piston clean up please. Guidance on what to look for on the bores will be useful too. Many thanks Trevor Hughes, Essex TR Group TR6 Compression Test 09 02 2019.pdf
  3. tjs

    Compression tester

    Hi all Im at work and want to order a fairly cheap compression tester from ebay - just wondering what the plug size is on the tr6? I read somewhere it was Metric, M14 x 1.25 which is quite rare I believe and most of the compression kits on ebay only do 16mm, or 21mm. What kit should I get? Alex
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