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Author help please please?????
luke gsi16v
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Registered: 3rd Jan 07
Location: Staffordshire
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7th Jul 07 at 10:55   View User's Profile U2U Member Reply With Quote
my car started knockin the other day from top end an lost all power, took the head off an found nothin wrong wit the valves an that, but it blew a piece out the head gasket between the 2 pistons like burnt it away. i replaced the head wit a new one today an now it want fire up, also did compresson test an was fine?

cud it be the crank sensor that cud make it fire wrong an knock?????????????

[Edited on 07-07-2007 by luke gsi16v]
Dave A
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Registered: 10th Dec 03
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7th Jul 07 at 11:30   View User's Profile U2U Member Reply With Quote
usually the fire ring between 2 cylinders goes between 3 and 4 on these engines. can happen over time with normal wear and tear etc... can be a sign of running lean as well.
luke gsi16v
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Location: Staffordshire
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7th Jul 07 at 11:37   View User's Profile U2U Member Reply With Quote
yh thats were it was, its usin more fuel, wat cud that be then to solve it
Dave A
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7th Jul 07 at 11:48   View User's Profile U2U Member Reply With Quote
get it tested on a RR to find where and why its running rich
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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7th Jul 07 at 11:53   View User's Profile U2U Member Reply With Quote
running rich could be a couple of things mine was doing this.partly because the lamba sensor had gone and the nock sensor was unplugged.is your eml light on?

[Edited on 07-07-2007 by sri power]
luke gsi16v
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Location: Staffordshire
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7th Jul 07 at 11:54   View User's Profile U2U Member Reply With Quote
cums on now an again were is the knock sensor
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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7th Jul 07 at 11:56   View User's Profile U2U Member Reply With Quote
on teh back of the engine under the inlet manifold.its easier to get at from underneath.have you done a fault code test on it?
luke gsi16v
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7th Jul 07 at 11:57   View User's Profile U2U Member Reply With Quote
not yet no
luke gsi16v
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7th Jul 07 at 11:58   View User's Profile U2U Member Reply With Quote
so u had a knockin noise to??
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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7th Jul 07 at 11:58   View User's Profile U2U Member Reply With Quote
nah no nockin noise.mine just ran like crap over fueling and smoking.is it turning over?
luke gsi16v
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7th Jul 07 at 12:00   View User's Profile U2U Member Reply With Quote
its turnin over yh but not hardly firin, timin mite be wrong
craig_s
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Location: Birmingham Drives: mk4 astra gsi
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7th Jul 07 at 12:00   View User's Profile U2U Member Reply With Quote
how did you time it up?using the original marks?or did you check tdc with a screw driver?


[Edited on 07-07-2007 by sri power]
luke gsi16v
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7th Jul 07 at 12:03   View User's Profile U2U Member Reply With Quote
lined all the marks up
craig_s
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Location: Birmingham Drives: mk4 astra gsi
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7th Jul 07 at 12:04   View User's Profile U2U Member Reply With Quote
you need to check tdc with a screw driver really.don't just rely on the marks.did you empty the hydraulic lifters too?

[Edited on 07-07-2007 by sri power]
luke gsi16v
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7th Jul 07 at 12:07   View User's Profile U2U Member Reply With Quote
put a new head that has bin rebuilt an it was clean. wats the knock sensor look like
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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7th Jul 07 at 12:09   View User's Profile U2U Member Reply With Quote
its just like a plug that had a bolt through the middle of it going on to the block.it would probably still run though.so i doubt it would be that.if i was you i would check the timing then do a fault code test

[Edited on 07-07-2007 by sri power]
luke gsi16v
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7th Jul 07 at 12:10   View User's Profile U2U Member Reply With Quote
i will have to have a look at that
Dave A
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7th Jul 07 at 14:41   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by sri power
you need to check tdc with a screw driver really.don't just rely on the marks.did you empty the hydraulic lifters too?

[Edited on 07-07-2007 by sri power]



cant check timing marks by finding tdc with a screwdriver as TDC is about 15-20 degrees out from the timing marks on a c20xe.

 
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