corsa c 1000 - low compression

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Thu 27 Jun 2019 13:47
corsa c 1000 - low compression - le Corsa c1.0

Hi my ikkle Corsa overheated.I stripped it down had head skimmed, reassembled it using new bolts etc.It would not start changed cam sensor still no start .I then did a comprrssion test very low readings so stripped it down again incsea I had overlooked something.reassembled still nothing.Did another comp test no1 pot 2- 23 psi pot 2 - 25 psi pot 3 - 21 psi.So I know there is a problem but not a vlue.Could blown head gasket break piston rings?.HELP PLZZZZZ.xxxxxx.

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Thu 27 Jun 2019 14:28
corsa c 1000 - low compression - Oli rag
Have you double checked the valve timing?
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Thu 27 Jun 2019 20:43
corsa c 1000 - low compression - Railroad.

As above. Sounds like the valve timing is incorrect, or the valve clearances are too tight due to the hydraulic lifters having fully extended when the head was removed.

Edited by Railroad. on 27/06/2019 at 20:47

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Wed 3 Jul 2019 01:02
corsa c 1000 - low compression - le Corsa c1.0

Thank you for your reply.all I did was take the hydralic lifters out had head skimmed and oiled them and set them in again.Is there a special method for valve lifters to be resited.I have looked in the haynes no ref to speacial ways to re home them.

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Wed 3 Jul 2019 01:23
corsa c 1000 - low compression - le Corsa c1.0

yes I did twice. is there a certain was to rehome the valve lifters as all I did was oil the cylinders and the lifters and put them back in their right places.and tightened the cam down

Edited by corsagirl 60 on 03/07/2019 at 01:25

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