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we recoed our hq 308 motor, its about 1000klms, old. every time i went for a drive, check water in radiator next day and its dry. no leaks though , just a bit out of the overflow. i changed radiator cap, and still same. Checked oil dipstick, and it was creamy colored. heads were completely overhauld, maybe blown gasket???
any thoughts
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I'm with Kelvin on this one,I suspect the timing cover.
Jim in Adelaide.. |
Jim in Adelaide.. |
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thanks guys, but how do i check thats the prob.
cheers
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i just repaired a 308 in an hg that had that problem..water leakage into motor..motor had been rebuilt 4 weeks before ...customer had already removed the heads when i got it...it was not actually the timing case itself but the pinhead mechanic didnt use any sealer on the timing case cover gasket and then didnt tighten the bolts enough.. easy fix..remove harmonic balancer,remove water pump,remove timing case cover,check cover for corrosion and if not that it must be the same pinheads brother that put your motor together,so may be gasket.. flushing the creamy goo from your motor will take longer to do than fixing the problem that started it.. we removed our motor and stripped it to a short motor and flushed it with good quality kerosene..not bunnings crap..then reassembeled and put woolworths cheap oil and a cheap filter on and ran it for about 10k and then drained it..amazing what was still in the galleries etc that came out..then put quality oil back in..problem fixed.. going to church makes you no more a christian than standing in a garage makes you a car... www.classicozwreck.com.au |
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theroy........inlet manifold just went around with socket, and they wernt tight. i do remember that the heads were freshly done, and the new inlet manifold didnt sit into position comfortably....could this be problem
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Yes ,but it could still be the timing cover/case.I would suggest tightening everything up and checking that too.loose bolts are hard to diagnose.?
Jim in Adelaide.. |
Jim in Adelaide.. |
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I have fortunately have not had to deal with leaking timing covers from new fitments but
if the heads and valley package has recently been fitted it could also be misalignment between them as well.
Depending on if the heads and/or block have been decked it can create a problem where the angle of
the valley no longer corresponds with the angle of the heads.
Normally along the lines of tight at the top loose at the bottom.
It all looks good on the outside but its not on the inside
Because of this it allows the coolant to leak out of the bottom of the ports into the block valley area.
Bolts that do not align/fit correctly is a a good sign of this problem also.
If you can try to look at the joint of the valley and the heads and make sure they are even and parallel,
If they are uneven this could be the problem.
Also has the engine had a re torque carried out on the head bolts since it has been put back together
If in not you could be having issues there as well.
Check the v of the valley and the heads and if that is right give it a re torque and
really with anything that has been apart its always worth checking to see that everything
is still nice and tight all over.
I should be able to post a picture to show the area I mean with the valley/heads if you need it.
Cheers Paul.
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Hi Paul
a pic would be great...thanks
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Hi Edmundo. I have just added a couple of pictures at the bottom of the page here. http://gallery.oldholden.com/HQ_SS/Tech/Engines/It is not the easiest thing to see but if the edges are not even on yours that could be your problem. Cheers Paul.
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