psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 18, 2011 16:53:40 GMT
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was out for a drive in my saab when the motor started to clatter, it's a 2.3 direct ignition turbo motor. i've had a poke around and a close listen using a screwdriver as a stethoscope and it would seem the noise is coming from the back top end of the motor opposite end of the block to the timing chain. my question is could this still be a symptom of a dodgy timing chain?, maybe a stuck valve ? how loud could that be as its pretty loud . anyone think of anything else to check out. am expecting a hefty repair bill, boo  , someone cancel christmas until my car is repaired please. Humbug! |
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Last Edit: Dec 21, 2011 17:43:42 GMT by psycho83
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rodney
Posted a lot
https://www.facebook.com/RD-vehicle-transport-and-recovery-services-525622614268010/
Posts: 1,677
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Dec 18, 2011 23:59:56 GMT
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have you checked the obvious? oil condition and level?? sounds like it may have killed a lifter,.
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facebook: rodney dean / rd transport  |
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murran
Part of things
Posts: 610
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what oil is in it? have you recently changed to a thinner fully synthetic?
if its a isolated tapping its probably a dodgy lifter... no need to worry.... run a flush thru it for 20 mins at fast idle. and change the oil/filter see if it improves.
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froggy
Posted a lot
Posts: 1,099
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Dec 19, 2011 13:45:12 GMT
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How old is the car ? If it's a 9-3 or 9-5 pre 2000 then it could be a blocked oil pick up , very common on these vauxhaull spec 205/235 .
Never had a lifter issue with a Saab motor unless it's been laid up for a good while or the litters have been out for some reason
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psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 19, 2011 16:11:14 GMT
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It's a 2001 9-5 , Could be the dreaded oil pickup issue, It had crossed my mind.
Oil level and condition seems fine. it's strange that it's a very isolated knock though. I'd have thought the whole top end would have starved. I'm hoping it's justa lifter, just dropped it at the garage as I have no time over the christmas break to fix it, and need the car back asap.
it's gonna be costly, that I know for sure
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oldchap
Part of things
just hanging about
Posts: 202
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Dec 19, 2011 16:40:01 GMT
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Could it be a broken spring in the clutch, I've had this in a vauxhall before and it sounded like a random rattle from the back of the block, diappears when pulling away as you let the clutch in
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what's that awful noise
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scruff
Part of things
Posts: 621
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Dec 19, 2011 18:21:09 GMT
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How hard would it be to have the cam cover off?
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1994 Lotus Esprit - Fragile red turbo with pop up lights.
1980 Porsche 924 - Fragile red turbo with pop up lights.
I spy a trend...
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psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 21, 2011 10:58:22 GMT
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How hard would it be to have the cam cover off? not hard at all if I could find a spare moment, unfortunately I couldn't. Have now dropped it at the closest garage to home (which may turn out to be a mistake) Just called for a progress report after the best part of 2 days, to be told, "yeah sounds like the top end, we wont know til we take the rocker off, bout £150 in labour." I told them pretty much that when I droped it off, said it's probably a hydraulic tappet . so all they seem to have done so far is start the engine.  |
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psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 21, 2011 17:42:57 GMT
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Garage called me in to have a look at the problem earlier. 156k car. the top end is off. it is getting oil so thats all fine but.......the hydraulic lifter bores have worn? so there is movement (side to side) which is causing the knock, I've never seen that before, didn't even know it was possible? I'm going to get the garage to change the tappets in the end that was clattering and run some additives, but has anyone ever seen this before? ovaled lifter bores. so annoyed that it's possibly not fixable, I cant live with that noise which I Guess makes my car scrap |
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Dec 21, 2011 18:05:49 GMT
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Couldn't a machine shop bore them to a oversize and fit sleeves the correct size for the lifters? Is there enough material for such an operation? Don't know if it would work, just an idea... I've not heared of that before either...
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psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 21, 2011 18:30:45 GMT
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the car is unfortunately not worth enough for the machine work to be worthwhile . I'll try and quieten it down with new lifters, ametech engine restore and a thicker oil. hopefully it'll then be at a bearable level. if not I might have to fit a fat chav exhaust and a huge sound system to mask the noise. a little bit of punk rock should hide the noise. |
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Dec 21, 2011 18:44:56 GMT
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Might be worth trying to pick up a secon-hand head for it - the garage will have to take the cam belt off to get to the lifters anyway, so taking the head off wouldn't be a huge amount of extra work.
Oh, and I have heard of tappet bores wearing oval - Imp engines have been known to do it at high milages. The tappets wear barrel-shape, too. Both cause tappety noises.
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Dec 21, 2011 18:49:08 GMT
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Surely a good 2nd hand head would be the first port of call if this doesn't work?
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Dec 21, 2011 19:09:20 GMT
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Mate a oil change should fix the problem, its because of the hydraulic lifters, a service cured my problem.
Although it can be a stuck lifter but then it would just be a case of swapping that one out and changing it for a good one.
HTH
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ChasR
RR Helper
motivation
Posts: 10,194
Club RR Member Number: 170
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Dec 21, 2011 19:24:05 GMT
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Triumph owners have their problem on TR7 and Stag engines. I know on those engines it is curable. I shall have to see how they go about it (I would guess at oversized lifters).
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psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 21, 2011 19:45:33 GMT
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Mate a oil change should fix the problem, its because of the hydraulic lifters, a service cured my problem. Although it can be a stuck lifter but then it would just be a case of swapping that one out and changing it for a good one. HTH I've told the garage to do that and two lifters at the end that was worst as first port of call, we shall see what the outcome is. |
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Dec 21, 2011 22:18:37 GMT
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ive had a couple of the 2.3 turbos with noisy top ends and both times it was piston slap and i scrapped them both.
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97 volvo 940 turbo wagon
87 fiat strada abarth
78 gs1000
82 katana 1100
84 gsx1100 efe
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psycho83
East of England
Rhythm and Booze
Posts: 777
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ive had a couple of the 2.3 turbos with noisy top ends and both times it was piston slap and I scrapped them both. it's definately not that in this case, it's the lifter bores that are screwed. Just hoping it can be made quiet enough to be bearable with a couple of new lifters and an oil change/additive. |
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Dec 22, 2011 10:15:57 GMT
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I personally don't think its the bores mate, obviously the garage have inspected it but its usually fixed with replacing the stuck lifters.
Never heard of it being piston slap in any b204/5 engine though
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psycho83
East of England
Rhythm and Booze
Posts: 777
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Dec 22, 2011 11:01:08 GMT
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I personally don't think its the bores mate, obviously the garage have inspected it but its usually fixed with replacing the stuck lifters. Never heard of it being piston slap in any b204/5 engine though Well I've asked them to do the lifters at the end i 'KNOW' the noise was coming from, time will tell, hopefully I'll get it back late today or early tomorrow. *fingers crossed* |
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, someone cancel christmas until my car is repaired please. Humbug!
