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I have a honda jazz 2003 gd1 1.3 with 200K kms on the clock. The car started burning oil around an year ago and occasionally (when the oil is topped up) puffing blue smoke puffs through the exhaust on start. No smoke under the bonnet or signs of oil leakage on the rocker cover.

While inspecting the spark plugs (it has 8, two per cylinder) I've noticed two of them, from two different cylinders, were slightly contaminated with oil. All the other ones had some carbonisation build up on the edges, after having replacing them only 1 year ago. Also, when running the engine with the oil cap removed, I can notice a "blowby". Not sure if this necessarily means that the cylinder rings are worn or if it might just be the PCV valve.

While researching how to replace the valve seals, didn't seemed to be too much of a job as it seems like it can be done just by removing the rocker cover and using a piece of thick rope to fill the empty space on the cylinder (to make sure the valves doesn't get dropped inside them) while replacing the seals.

Questions are:

  • is it worth the effort and time, given the car's age and how many kms the engine has done?
  • do I need other tools other than a valve spring compressor tool, pliers, socket and torque wrenches?
  • do I need any other parts other than rocker cover seals and valve seals?

I understand that probably, sometime soon, something else might need repairing, but my other options are:

  • engine reconditioning = AUD$3000
  • engine swap = AUD$2000
  • selling as it is = maybe AUD$700
  • selling to wreckers = maybe AUD$250
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  • How much will you spend on a replacement vehicle and then how much to get it serviced, tires etc?
    – Solar Mike
    Nov 22, 2019 at 21:13
  • You mean while the job is being done? If so, none became I don't need one. Good point though.
    – Zedzdead
    Nov 22, 2019 at 21:16
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    @blacksmith37 we would take the sparkplug out, feed in a whole bunch of baler twine (string) then rotate the engine to push that piston up... used a ring spanner to push down the valve spring to get the collets out - changed the valve seal then continue with the others... ran fine after...
    – Solar Mike
    Nov 22, 2019 at 22:46
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    Sometimes you have to, to get the string back out... but if the timing jumps a tooth... which can happen.
    – Solar Mike
    Nov 23, 2019 at 0:23
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    Another way is to lock the engine in position and apply compressed air to the relevant cylinder...
    – Solar Mike
    Nov 23, 2019 at 5:58

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