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Garage bent my valves during a cambelt change - advice please
Cars Maintenance General car maintenance (uk.rec.cars.maintenance)
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#11
 
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Re: Garage bent my valves during a cambelt change - advice please -
03-13-2007
, 04:02 AM
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neil.farr... (AT) btinternet (DOT) com> wrote in message news:1173717125.375823.253080 (AT) j27g2000cwj (DOT) googlegroups.com... Hi, took my 2000 Scenic II RXE 2.0L Auto for a cambelt change. During the repair they made a mistake. The garage told me they turned the engine over by hand but when they started it there was a nasty noise. This is a "critical' engine according to Renault, which means if the timing is wrong all the valves are bent. They said they may have to send the head away to a machine shop fo new valve guides The garage has been good about it and lent us an auto courtesey car and will be paying for the 'extra' work. What I am concerned about is will they do a good repair, and will faults occur after months due to a poor repair e.g. were the pistons, rings etc. damaged? What would you do when you went to pick the car up (it's been 3.5 weeks since the nasty noise). I was thinking of a letter stating what happened and a 1 year guarantee. Thank you I think that's quite fair of you to ask. I would. A main dealer did something similar to my car and put it right the same day. Not a word said until I went to get the keys and the manager explained there had been a problem. I was quite annoyed but the car has been fine and that was three years ago. |
the problem fixed since the car has been very reliable to date. I
would not pass it on to someone without explaining any faults with it.
That's just not right. Cheers.
#12
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On 13 Mar, 00:39, "Trevor" <t... (AT) fpiproject (DOT) co.uk> wrote: neil.farr... (AT) btinternet (DOT) com> wrote in message news:1173717125.375823.253080 (AT) j27g2000cwj (DOT) googlegroups.com... Hi, took my 2000 Scenic II RXE 2.0L Auto for a cambelt change. During the repair they made a mistake. The garage told me they turned the engine over by hand but when they started it there was a nasty noise. This is a "critical' engine according to Renault, which means if the timing is wrong all the valves are bent. They said they may have to send the head away to a machine shop fo new valve guides The garage has been good about it and lent us an auto courtesey car and will be paying for the 'extra' work. What I am concerned about is will they do a good repair, and will faults occur after months due to a poor repair e.g. were the pistons, rings etc. damaged? What would you do when you went to pick the car up (it's been 3.5 weeks since the nasty noise). I was thinking of a letter stating what happened and a 1 year guarantee. Thank you I think that's quite fair of you to ask. I would. A main dealer did something similar to my car and put it right the same day. Not a word said until I went to get the keys and the manager explained there had been a problem. I was quite annoyed but the car has been fine and that was three years ago. Thank you for the replies and please keep them coming. I want to get the problem fixed since the car has been very reliable to date. I would not pass it on to someone without explaining any faults with it. That's just not right. Cheers. |
#13
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cylinder liners are removable, problem is that they seal with a rubber ring at the bottom of the liner, when removing the head it is ever so easy to disturb that ring and internal leaks start to occur. The slightest variation in combustion chamber size, valve seat width etc. etc. will all make a difference. Most garages will not even have the right glue available to reassemble it, they will probably use pattern gaskets and parts, etc. etc. |
Hmm, what glue should they use to put the valves in and the head back
on?
Are you *really* saying that removing the head can disturb the
cylinders liners? I'm not syaign that it can't but seems very very
odd, but then again it is a Renault.
If the job is done properly then I can see no problem but the word
"properly" is key here.
#14
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On Mar 12, 5:19 pm, "MrCheerful" <nbk... (AT) hotmail (DOT) com> wrote: French engines the cylinder liners are removable, problem is that they seal with a rubber ring at the bottom of the liner, when removing the head it is ever so easy to disturb that ring and internal leaks start to occur. The slightest variation in combustion chamber size, valve seat width etc. etc. will all make a difference. Most garages will not even have the right glue available to reassemble it, they will probably use pattern gaskets and parts, etc. etc. Hmm, what glue should they use to put the valves in and the head back on? Are you *really* saying that removing the head can disturb the cylinders liners? I'm not syaign that it can't but seems very very odd, but then again it is a Renault. If the job is done properly then I can see no problem but the word "properly" is key here. |
the average mechanix and say that's 30 pounds please, most of them say I'll
use some cheapo silicone, especially when they are paying (because of a
messed up job) Genuine gaskets are three times the price of cheapo ones,
but for a good reason: they are much higher quality.
And yes, any wet liner engine can have the sleeves dislodged by a careless
head removal, I have even seen one removed with the head!!!
Peugeot make special tools to unstick the head without disturbing the
liners, and a special set of tools to lock the liners down while the head is
off, no garage will have these, most won't even have heard of them.
If the job is done properly throughout then there would be no problem, but
reality says it won't be done right.
Mrcheerful
#15
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Thank you for the replies and please keep them coming. I want to get the problem fixed since the car has been very reliable to date. I would not pass it on to someone without explaining any faults with it. That's just not right. Cheers. Demand to see the engine when they've taken the head off before they do |
have to do properly or it won't run but it's feasible to just file the
bits off the piston crown and it'll run OK but it's not a proper
repair.
Personally I think I'd be asking for a recon engine as it is possible
to bend con rods, little ends and shag big end bearings too.
--
Conor
Light travels faster than sound. This is why some people appear bright
until you hear them speak.........
#16
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In article <1173776575.432236.273200 (AT) n33g2000cwc (DOT) googlegroups.com>, nafuk says... Thank you for the replies and please keep them coming. I want to get the problem fixed since the car has been very reliable to date. I would not pass it on to someone without explaining any faults with it. That's just not right. Cheers. Demand to see the engine when they've taken the head off before they do any more work. Check the piston crowns for gouging. The head they'll have to do properly or it won't run but it's feasible to just file the bits off the piston crown and it'll run OK but it's not a proper repair. Personally I think I'd be asking for a recon engine as it is possible to bend con rods, little ends and shag big end bearings too. |
Pretty rare though.
#17
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I have never, ever seen a rebuilt engine that has been done to the quality of an original factory built engine, no matter what the make, no matter who does it. |
1) A Herald engine, for my sister's car, done by John Kipping (now Canley
Classics). Absolutely superb.
2) A VW 1600 air-cooled engine, for my camper van, from Vege. Cost about
twice what everyone else charged, but excellent.
Ian
#18
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On Mon, 12 Mar 2007 17:19:06 +0000, MrCheerful wrote: I have never, ever seen a rebuilt engine that has been done to the quality of an original factory built engine, no matter what the make, no matter who does it. I have encountered two superb reconditioned engines: 1) A Herald engine, for my sister's car, done by John Kipping (now Canley Classics). Absolutely superb. 2) A VW 1600 air-cooled engine, for my camper van, from Vege. Cost about twice what everyone else charged, but excellent. Ian |
#19
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"Ian Johnston" <ian.groups (AT) btinternet (DOT) com> wrote in message news  an.2007.03.16.16.02.48 (AT) btinternet (DOT) com...On Mon, 12 Mar 2007 17:19:06 +0000, MrCheerful wrote: I have never, ever seen a rebuilt engine that has been done to the quality of an original factory built engine, no matter what the make, no matter who does it. I have encountered two superb reconditioned engines: 1) A Herald engine, for my sister's car, done by John Kipping (now Canley Classics). Absolutely superb. 2) A VW 1600 air-cooled engine, for my camper van, from Vege. Cost about twice what everyone else charged, but excellent. Ian I must admit I was thinking of more modern stuff, you know, post WW2 |
outlive the rest of the car - apart from things breaking, which isn't the
same as wearing out.
--
*How's my driving? Call 999*
Dave Plowman dave (AT) davenoise (DOT) co.uk London SW
To e-mail, change noise into sound.
#20
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In article <BIWKh.142088$1E3.37462 (AT) fe3 (DOT) news.blueyonder.co.uk>, MrCheerful <nbkm57 (AT) hotmail (DOT) com> wrote: "Ian Johnston" <ian.groups (AT) btinternet (DOT) com> wrote in message news an.2007.03.16.16.02.48 (AT) btinternet (DOT) com...On Mon, 12 Mar 2007 17:19:06 +0000, MrCheerful wrote: I have never, ever seen a rebuilt engine that has been done to the quality of an original factory built engine, no matter what the make, no matter who does it. I have encountered two superb reconditioned engines: 1) A Herald engine, for my sister's car, done by John Kipping (now Canley Classics). Absolutely superb. 2) A VW 1600 air-cooled engine, for my camper van, from Vege. Cost about twice what everyone else charged, but excellent. Ian I must admit I was thinking of more modern stuff, you know, post WW2 Then just how often have you seen a reconditioned modern engine? Most outlive the rest of the car - apart from things breaking, which isn't the same as wearing out. |
apart (most often for head gasket or valve problems [often/usually caused by
lack of or poor maintenance])
Nowadays there seems to be no other reasons to take any engine apart.
The engines I have seen rebuilt after the sort of problems which nowadays
cripple an engine, have not been rebuilt to any sort of adequate standard
compared to a factory built engine.
Mrcheerful
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