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Engine removal jack

Discussion in 'Engine & Transmission' started by Ian and Shelley, Jun 15, 2019.

  1. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    219
    Location:
    Umina Beach

    Although I agree here too.. Time to go get a leak down tester do a few more compression test and see what the results really show me..

    Then maybe get the heads off !!
     
    Mr Beckstar likes this.
  2. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,499
    Location:
    Melbourne Bend of Islands
    Not very sophisticated but it works. A long wide beam under the back wedged on a brick or two. Undo all the attachments then lower the beam a bit at a time. When you are on the ground. Drag it out. Done it a few times over the years..
     
    Mr Beckstar likes this.
  3. tintop

    tintop Well-Known Member

    Messages:
    530
    Location:
    Canberra
    yep...post #6 is a pic of a complete engine taken out for a new clutch (and gearbox swap)...if you don't have the gear to safely lift the van up high enough to drag the engine out you can drop the engine then lift the van just enough to change the clutch by sliding yourself under...(clutch alignment tool, flywheel lock and torque wrench and you're done)
     
    Mr Beckstar, Grantus, David H and 2 others like this.
  4. Mr Beckstar

    Mr Beckstar Well-Known Member

    Messages:
    1,041
    Location:
    Bateau Bay, NSW
    That 85 PSI is low. Leak down test would be a good idea before doing anything.
     
  5. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    219
    Location:
    Umina Beach
    Thanks


    The Leak down tester is ordered and should arrive Monday / Tuesday...
    Hope that will confirm what needs to be repaired...
     
    Mr Beckstar and Mordred like this.
  6. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    219
    Location:
    Umina Beach


    Hi all

    Leak down test results as follows

    Cylinder 1 - 25%
    Cylinder 2 - 20%
    Cylinder 3 - 35%
    Cylinder 4 - 20%


    Cylinder 3 again the weakest....

    I ran out of daylight and will re test 3 in more detail.but think most air was escaping through oil filler which I assume could mean worn pistols / rings?
    Some air could be heard through carburetor...


    IF Worn rings would you expect highoil usage? (Engine does not use any oil.??:

    Nothing leaking through exhaust..

    All thoughts and suggestions welcome.


    Thanks
     
  7. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    219
    Location:
    Umina Beach
    ..


    Hi.

    Retested compression test and leak down today both wet and dry...

    Dry compression....better results..

    1 - 100
    2 - 90
    3 - 95 (adjusted and corrected valve clearance)
    4 - 95

    Dry Leak results - strangely worse than last week...
    1 35%
    2 35%
    3 40%
    4 -35 %

    Wet compression

    1- 110psi
    2- 95 psi
    3- 100 psi
    4- 110 psi

    Wet leak down

    1- 10%
    2- 25%
    3- 20%
    4- 20%

    Wet test results are much better all round..

    What assumptions should I take from these results...?
     
    Mr Beckstar likes this.
  8. Mordred

    Mordred Super Moderator Staff Member

    Messages:
    2,830
    Location:
    Penna, Hobart
    With those results I would give an oil change and a tune up including valves and start enjoying it. The comps are all pretty close and although not high it is sound like it still has a few miles on it. Every bit you get is more time to save money towards a rebuild. Maybe get the carbs and dizzy rebuilt to put you a bit ahead. Start getting the parts together for it if you want. Unless it is really running rough a rebuild isn't going to give you a massive increase in power or fuel economy.

    Adrian
     
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  9. Ian and Shelley

    Ian and Shelley Active Member

    Messages:
    219
    Location:
    Umina Beach

    Thanks Adrian...

    I have rebuilt the carbs and given thorough tune up and a new dizzy was wrongly installed when I misdiagnosed failed dizzy for a loose wire!!!!
    Always good to have a spare dizzy ibtell myself!

    Thanks again..
     
    Mordred, cbus and Mr Beckstar like this.
  10. Mr Beckstar

    Mr Beckstar Well-Known Member

    Messages:
    1,041
    Location:
    Bateau Bay, NSW
    Yes the new test results look like there’s life left in it.

    Make sure you get regular valve clearance checks and record whether any have to be adjusted more than the others over time. That could be a clue a valve seat is in trouble and you don’t want to drop a seat or a valve. In light of number 3 needing adjustment this time, I’d do the job again in a thousand km and see if it’s stabilised.
     
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