BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
My girlfriend owns a 1.4 design corsa d. The header tank was full of mayo and so was the oil, so i took it to my mates garage and he said what i thought, that the head gasket has blown. Hes had the head off and sent it to cylinderhead services in Northampton. It was sent back and was apparently all fine. Pressure tested and a slight skim. Since then my mates garage has refitted the head with new timing chain,tensioners and water pump and flushed all the coolant system and oil and refilled with fresh oil and water. He has come back to me and said its not running right,like its miss firing a bit. Hes basically back tracked everything and still no luck. Hes basically took the head off again and put yet another gasket and bolts and another water pump but its still not right. The heads coming back off again to be sent back to cylinder head services of Northampton to have it double checked as my mate said there is a lack of compression. Not sure if its all cylinders or just one. Im wondering what the hells going on as even with all the mayo and headgasket gone it used to drive fine with no miss fire at all. I just cant seem to think what could be wrong other than the bottom end being shagged. Bearing in mind the cars only 5 years old and only on 41k and has NEVER over heated. Anyone on here had or heard of a similar problem. Sorry about the essay but i had to state all the facts and whats happened.
[Edited on 29-03-2013 by BenC1985]
|
boomtings1
Member
Registered: 25th Apr 11
Location: Sheffield
User status: Offline
|
I had this and it was the valves sticking.
|
BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
quote:
Originally posted by boomtings1
I had this and it was the valves sticking.
Was that on a corsa D? I will have to let my mate know as hes sending the head off to be checked over again. Hopefully that will sort it and we will get the car back start of next week.lol
|
Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
|
if its got low compression on one of the cylinders id firstly look at the compression rings for that cylinder. i take it you've looked at the bores when you had the head off and they arent any scrapes etc..
if the cars running fine with the head gasket symptoms and you've skimmed the head and changed everything like you said, the only thing i can imagine it being is the bottom end.
might be worth speaking to warren and/or Vauxhall to see if there is any known recalls or faults with that engine as that does sound proper weird!
[Edited on 31-03-2013 by Martin W]
|
davegreen
Premium Member
Registered: 20th May 12
Location: Oxfordshire
User status: Offline
|
over tightening the plugs can crack the head. also heard of blocks cracking. as it was runing ok apart from mayo in water/oil before head was removed i would suspect a problem with the top end maybe even a timing issue?
|
BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
quote:
Originally posted by Martin W
if its got low compression on one of the cylinders id firstly look at the compression rings for that cylinder. i take it you've looked at the bores when you had the head off and they arent any scrapes etc..
if the cars running fine with the head gasket symptoms and you've skimmed the head and changed everything like you said, the only thing i can imagine it being is the bottom end.
might be worth speaking to warren and/or Vauxhall to see if there is any known recalls or faults with that engine as that does sound proper weird!
[Edited on 31-03-2013 by Martin W]
I havent personally seen the engine in bits myself but as i say it ran fine even running on mayo in the oil and water. My mate just said since being back together it was a bit hesitant and spluttery? Hes redone everything twice now and its still the same. Heads coming back off and being sent back to be checked again. Been told it may be sticky valves or poor coilpack. But coilpack wouldnt affect compression.lol
|
BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
quote:
Originally posted by davegreen
over tightening the plugs can crack the head. also heard of blocks cracking. as it was runing ok apart from mayo in water/oil before head was removed i would suspect a problem with the top end maybe even a timing issue?
The head was refitted and torqued up to factory specs, not saying it hasent cracked anything though. And the timing was set with the correct vauxhall timing tool and as im led to believe even a monkey could time it up with the tool so im puzzled.lol Would sticky or dodgy valve cause a lack of compression on one or more cylinders? Dont see why the company who checked the head have missed something though as they are one of the best in Northants.
|
davegreen
Premium Member
Registered: 20th May 12
Location: Oxfordshire
User status: Offline
|
some times the head can be cracked and removing and then refitting the plugs can make it much worse. valves usually only stick due to being bent, could be a lifter that has got stuck?
|
BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
quote:
Originally posted by davegreen
some times the head can be cracked and removing and then refitting the plugs can make it much worse. valves usually only stick due to being bent, could be a lifter that has got stuck?
Im not sure. Lol i will have to ring the garage thats got it and put all these points across to them so they have a few areas to check. Im going to speak to vauxhall tommorow and see if they have had a similar case before.
|
Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
|
See if you can find out the compression ratings for each piston. They don't have to be 100% spot on with eachother (although they should be with such a young car) 10 difference wouldn't make much difference to the running I wouldn't have thought. It's if 3 are reading 120 and ones reading 70 then you've got a problem
|
kylesri
Member
Registered: 13th Jan 10
Location: Technician At Perrys Vauxhall Canterbury Kent
User status: Offline
|
if the timing wheel isnt lined up properly it will either cause it not to run at all or it will run with a missfire feel
|
kylesri
Member
Registered: 13th Jan 10
Location: Technician At Perrys Vauxhall Canterbury Kent
User status: Offline
|
and also if hes fitted new camshaft pulleys which you usually get if you buy a full timing chain kit your supposed to knock the centre out of 1 of the old pulleys as it becomes a washer to brings the timing wheel closer to the camshaft sensor which is shown in the pic you can see the phase wheel then a washer before the sprocket and you need to use the longer silver bolt
[Edited on 02-04-2013 by kylesri]
[Edited on 02-04-2013 by kylesri]
|
BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
Ive just started a new job and havent managed to talk to the garage who's doing it. I really need to talk to them and put all these points across to them as this monday they will have had the car three bloody weeks.lol cant really be THAT hard to do the headgasket properly.lol
|
mex
Member
Registered: 25th Apr 10
Location: East Yorkshire
User status: Offline
|
i'd change garage
|
BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
|
Bit hard when the car doesent run or is in bits. Plus my mates doing me a favour. Im saving ALOT of money compared to giving it to vauxhall. The problem, after the head being checked for a second time was the hydrolic tappits being fucked and the valves staying open slightly causing lack of compression. The car is having(after being advised from vauxhall) new tappits,oil pump, tensioner for the chain and a bloody good flush. Should get it back monday after the heads rebuilt and sent back. And its costing £700 all in with head rebuild and new genuine oil pump,tensioner,Headgasket/bolts, oil and water flush and new plugs and labour. That would be well over a grand at vauxhall.
[Edited on 05-04-2013 by BenC1985]
|
