Diesel Diagnostics

Post a Response

Renault Clio 1.5 DCi 2002 - Misfire after cam belt failure - Fixed #

Posted by Glen Strachan on July 7, 2011, 4:32 pm

Year of Manufacture *: 2002
Engine Size and Code *: 1.5 Dci

Hi

I have got a Clio that the timing belt failed and it has been put together with new valves but missfires on 1 cylinder.
Has anyone had a Clio where the cam lobes have moved on the shaft ?
I dont think its moved by much but dont have another to compare

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Ray Mahon <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1915' width='330' height='300' border=0 style='border:none;'> on July 7, 2011, 5:21 pm, in reply to "Renault Clio 1.5 missfire after cambelt failure"

Have you replaced the Cam pulley?
Could also be an injector fault as they dont like being laid up.

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Steve Harvey <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5250' width='330' height='300' border=0 style='border:none;'> on July 8, 2011, 7:49 am, in reply to "Renault Clio 1.5 missfire after cambelt failure"
Steve Harvey

Hi Glen,
Yes this can happen.
regards Steve Harvey

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Glen Strachan on July 8, 2011, 8:07 am, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"
Message modified by board administrator July 8, 2011, 1:58 pm

Many thanks, I'm sure all is OK with injectors, valves etc and it is such a miss that I can only assume it is a Cam problem. I have not yet compression tested it but will do later today to prove whats going on.
I just needed to confirm its possible the cam lobes can move

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Dave Hill <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2783' width='330' height='300' border=0 style='border:none;'> on July 10, 2011, 6:56 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"

Hi Glen

It should be quite straight forward to evaluate & assess the orientation of the cam lobes for your questionable cylinder, by comparing them to the lobes on the cylinders that are performing correctly.

"""I'm sure all is OK with injectors"""

Have you tested & confirmed this, or is it just an assumption?

The cam keyway thing is a known issue after a belt failure, but would effect all cylinders equally I suspect.

It is much more likely that you have an injector problem I think.

HTH

Dave

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Mark Carter <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on July 10, 2011, 8:21 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"

With my crystal ball powerd by my power pack I'm with Dave on this one.

Regards Mark

PS. move two injectors and prove us wrong.

Modern cars, Its all wizardry and witchcraft

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Andy Evans <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5518' width='330' height='300' border=0 style='border:none;'> on July 10, 2011, 10:14 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"

"PS. move two injectors and prove us wrong." I would not entertain doing that for test purposes, you only have to fart near these injectors for them to go faulty.

Andy E

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Mark Carter <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on July 11, 2011, 8:28 am, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"

Hi Andy,
I hear what you are saying, but I have done just that dozens of times when the vehicle is warm and straight after running it without never having a issue.

I am fully aware of the delicate nature of this system. IE. after a head gasket. After talking to some of the best brains in the diesel world the general option appears to be with letting the fuel drain from the injector and then the residue gumming up the internals.

Regards Mark

Modern cars, Its all wizardry and witchcraft

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Michael Whitworth <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5568' width='330' height='300' border=0 style='border:none;'> on July 12, 2011, 9:24 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"
Mike Whitworth - Administrator

Hi I agree with Andy here, You should not NEED to move an injector to prove if its the problem so why take an un needed risk!!! (guess what word I couldn't spell?)

Mike

M.O.M. Miserable Old Manc

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Kevin Apps <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on July 12, 2011, 9:35 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"
Kevin Apps

Mike.

Necessary !

Kev

Re: Renault Clio 1.5 missfire after cambelt failure

Posted by Michael Whitworth <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5568' width='330' height='300' border=0 style='border:none;'> on July 12, 2011, 9:53 pm, in reply to "Re: Renault Clio 1.5 missfire after cambelt failure"
Mike Whitworth - Administrator

Thats it Kev!!!!!

M.O.M. Miserable Old Manc

Fixed #

Posted by Glen Strachan on July 14, 2011, 3:27 pm, in reply to "Renault Clio 1.5 DCi 2002 - Misfire after cambelt failure #"
Message modified by board administrator July 19, 2011, 2:55 pm

My bad :-(
It was an injector all along.
I had pretty much ruled them out because I know it ran fine before the timing belt failure , and we are very carefull not to get dirt in the injector ( or put them on a wire wheel to clean em up )
Thanks for your advice.
And remember - assumption is the mother of all f...ups

Fixed #

Posted by Glen Strachan on July 14, 2011, 3:29 pm, in reply to "FIXED"
Message modified by board administrator July 19, 2011, 2:55 pm

by the way, we swapped 2 injectors to prove the fault

Fixed #

Posted by Mark Carter on July 14, 2011, 9:38 pm, in reply to "Re: FIXED"
Message modified by board administrator July 19, 2011, 2:55 pm

Hi Glen,

Glad to hear you got to the bottom of it.

Assumption is definitely the mother of all F**k ups

Regards Mark

« Back to index

[ Diesel Diagnostics ]