Question about Ford Laser

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We have a blown headgasket and replacing it--we are trying to tell if the head is warped and needs planing- what is the measurement-- gap is it 0.05 mm 1989 for laser 1.6 litre automatic 124,000kms hope u can make sense out of my question

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  • jrtrigg Aug 22, 2010

    thankyou for your answer---we will do as u have suggested

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  • Ford Master
  • 2,359 Answers

The maximum distortion diagonally or along length = 0.06mm
This is the shop rule.

====

Your cylinder head warp is at 0.05mm.

I will send it to a machine shop to CNC/milling the head.

The machine will perform a task call MAGNAFLUX.

They will inspect the head for crack(s) during this MAGNAFLUX procedure.

Over heating can cause invisible hairline crack(s).

If the cyc. head pass the inspection then they will mill the head down to specification.

I will bring the VIN number to the machine shop.
If there is any ID marking on the cyc, head you should clean and mark it so the machinist can get the correct milling spec.
THIS WILL AVOID COSTLY ERROR!

=====

MORE TIPS

Use NEW head bolts and head bolt compound/chemical.

REPLACE all freeze plugs on the block. ALL OF THEM.
After over-heating they will expand and cause leaks.

NEW water pump and thermostat. Replace them at the same time.

Check service record for the last timing belt + tensioner change.
YOU ARE DUE FOR T-belt change at 130K-160K.

Posted on Aug 22, 2010

  • Vincent_G
    Vincent_G Aug 22, 2010

    After the tasks are completed,you MUST do an oil + filter change.

    I recommend using "30" weight non-detergent oil.

    Let it ran for 15 minutes and do ANOTHER oil + filter change.

    ====
    Use NEW 50/50 coolant to refill your cooling system.


    Fill it slowly to avoid air pocket trap inside the cooling system.

    If the radiator cap is over 6 year old then change it.
    The spring on the cap will rust and stop keep the cooling system pressure.

    Do a coolant system pressure test ($25-$50 test at a radiator shop) to check for "damaged" radiator and failing upper and lower radiator hose.

    ====





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