Hi Guys

I have just bought my first Mazda 323f 1.5 1995m reg, when I test drove it the clutch was on its way so I had this cost taken off the price and replaced the clutch staight away. The problem know encounter is that when accelerating at around 3800 - 4000 rpm the car starts to jerk almost as if I was pumping the accelerator and sometimes carries on until I change and then does it when it hits those revs again or sometimes it revs through. Then this morning I was in 2nd gear and had to brake sharply when I put my foot down in 2nd to accelerate it started jerking from 1000 rpm until I eased off and accelerated again or changed gear.
I have a good general knowledge of cars and engines, but was wondering if anyone out there had encountered this or had any advice I am a student so would like to try and sort this myself if possible to costs down.

Thanks

Wazza

If the car wasn't doing this before the clutch was changed it sounds like the new clutch or its fitment could be the problem.

Was the whole clutch changed or just the linings?

Ed

Could be misfiring caused by failed plug leads, look for small white burn marks just above the top of the rubber seal at the base of the plug lead

Kangaroo petrol?

[quote="thecopper"]Kangaroo petrol?[/quote]

The car I learnt to drive in always had that in the tank

Ed

[quote="thecopper"]Kangaroo petrol?[/quote]


You mean Diesel ..

Nah..in all fairness. diesels are improving...except in the vauxhalls/peugeot/ford/citroen/fiat/kia/daewoo/proton/.......

[quote="ed"]If the car wasn't doing this before the clutch was changed it sounds like the new clutch or its fitment could be the problem.

Was the whole clutch changed or just the linings?

Ed[/quote]


The whole clutch was replaced, it seems to do this only in 1st and 2nd gear and sometimes third?

[quote="Roadster Robbie"]Could be misfiring caused by failed plug leads, look for small white burn marks just above the top of the rubber seal at the base of the plug lead [/quote]

Thanks I'll have a look tomorrow.

May also be caused by a split/poor fitment of the air intake pipe, the big fat one between the air flow meter and the throttle body, this would have been disturbed to change the clutch

I changed my spark plugs to Iridiums and the kangarooing that I used to get under power in high gear has now disappeared!

Have a look at the spark plugs, it could just be that these are done for!

(my old Bosch Super 4s had been in for over 2 years and were starting to look a little sorry for themselves!)

[quote="wai.cheung01"]I changed my spark plugs to Iridiums and the kangarooing that I used to get under power in high gear has now disappeared!

Have a look at the spark plugs, it could just be that these are done for!

(my old Bosch Super 4s had been in for over 2 years and were starting to look a little sorry for themselves!)[/quote]

Thanks I will change the plugs and leads as I did find some white burn marks as suggested earlier in these threads.