Engine or Clutch issue?

[mattie007]

Just as I thought my car was sorted it appears to have a big issue. Just seems dead flat under 2000 revs and I need to give it a lot revs to pull away.
It's the original clutch on 82k and just passed the MOT....

[mattie007]

Could it be a sensor issue?

[andys1981]

blocked catalist?

[mattie007]

It just sailed through the MOT so I'd have thought it would of been picked up then?
How would I know if it's a faulty CAT?

[andys1981]

i know with my golf it wouldent rev over 3k,and the cat had collapsed,but in your case is the clutch maybe slipping,ie accelerating and not going anywhere

[mattie007]

So many things it could be. Above 3k it revs freely, below it's just lumpy and slow. I'm no mechanic but if the cat has gone why would that matter as a lot of people have them removed?

[petet16]

If the cat was blocked it wouldn't rev freely beyond 3k, most likely wouldn't even get to 3k.

Could it be something to do with the iacv.

[mattie007]

IACV?
It did have an idle issue recently but sorted itself. Guess it could be that again?

[petet16]

Sorry, Idle Air Control Valve.

[mattie007]

Where is it located? Is it worth giving it a clean with WD40?

[petet16]

Heres a diagram of the 120 throttle body, It doesn't have an iacv like a 180, instead it uses a stepper motor, probably worth giving the connectors a clean, and checking the pipes for leaks.

http://www.rimmerbros.co.uk/Item--i-GRID003475

[mattie007]

Thanks Pete, will have a look tomorrow.

[mattie007]

Ok, just did the test, 40 at idle revs. It doesn't rev high when you put your foot down, just labours so that rules the clutch out?
Then it wouldn't start, after a few attempts it was barely idling. Put my foot down and it crept to 4k revs then opened up as usual but kept wanting stall when my foot was back on the clutch. Any ideas?
*

[BUCKYDEVIL]

Just read through this and to be honest Im just throwing my little bit in.
Have you got too much slack in throttle cable ?
or is throttle body valve opening fully ?

[mattie007]

Had a look earlier but couldn't see anything sinister.
Got the breakdown man coming out tomorrow so hopefully he can get it going. Thanks for all your replies :)

[mattie007]

Garage have just phoned to say they think the cambelt has jumped.
Anyone heard that before?

[petet16]

It isn't unheard of, if it has jumped hopefully it wont have done any other damage.

[petet16]

Something else that could have happened, and I only know about this from a post on Rovertech, is that the timing belt drive pulley has slipped on the nose of the crankshaft, it is a taper fit apparently and doesn't have a Woodruff key to locate it.

*edit* the cam gear locates on a flat on the nose of the crank.

Link to RT thread http://www.rovertech.net/forum/viewtopic.php?f=3&t=137518

[mattie007]

Funny you should say that. The garage just phoned to say the pulley is wobbling around like a *******. Will give the garage a ring to let them know.

[mattie007]

Well the IACV didn't work, nor a new throttle body.
The sensors have been cleaned but still nothing. Looks like I may have to break it which would kill me but I can't keep throwing money at it. Such a shame as I thought it was running well recently.
What would a 120 be worth in bits?
Mk2 alloys with new Hankook tyres
180 bodykit
Piper catback
PiperX Induction
Rebuilt 1.8 engine with MLS gasket
Green Monaco seats and steering wheel

[talkingcars]

Don't dispare - it is a simple fault - are there any leaks on the inley after the throttle body - what are the emisions like?

[petet16]

Did they find any problem with the crank pulley.

[mattie007]

Emissions are fine (just passed MOT) but it is loosing coolant, needs a top up every week.
They said the crank pulley was ok Pete.
I even took a list with all the potential problems you kind people gave me, but to no avail.

[grimmy]

Head gasket again?

[petet16]

Cars, they're enough to drive you up the wall sometimes:wacko:

[mattie007]

Still haven't got the car back.
When on the ramps it was running well, then as soon as its on the road it dies.
The Ecu has even been checked but nothing.
To top it off I've got a Micra to use for work.....

[petet16]

Is it showing up any fault codes?.

[mattie007]

Nothing. But he did say Rovers are always a bit temperamental with fault readers.