lundi 8 septembre 2014

Diagnoses from the experts? Becoming V expensive....

Hi everyone,



Any specific solutions to this lot would be great - at this rate I'll be replacing half the car.... Thanks in advance to anyone who can help me tackle this lot. I have the car in Sweden in the moment and I'm in 2 minds as to whether to bring the car over to the UK to get this lot sorted out Maybe at TSautos. I also need a rear tailgate window and I'd like to fit the fuel burning heater which are sitting at hom win the UK. But it's a £700.00 round trip....



I’ll be as brief as possible. I was on the verge of selling and ending my MG affairs (MGB, MGTF, ZT-T), but resolved a few weeks ago to fix and restore to glory as I can’t think of another car I’d rather have and I like it. Already quite a few mods.



History of car first in case it’s relevant and problems afterwards:



Car bought 2009 for expanding family at 57000. Grey 2004 cdti ZT-T auto, leather, abs, cruise. No history so took a gamble as needed one fast. Later discovered it had had a minor front end prang and wasn’t brilliantly looked after. :-(



Car now at 80,000. Has a non standard intercooler with no o-rings. Not sure why.



WORK DONE:


2009:



Synergy 2A tuning box

Pierburgh Maf

Synergy Chrome dash switch

Multimedia double din head unit

Replaced boot cover handle

Replaced all exterior badges

Fitted leds / sidelights / main beam

Fitted Underbonnet pad

Millers XFD 5w/40 oil 2x5ls

Zx1 Oil treatment

Millers diesel sport 4 fuel treatment

Liqui-Moly Diesel Purge

Fitted EGR bypass

Replaced Dashboard (Rhodium Grey)

Replaced Repeaters

Plenum drain mod and spy hole

Air intake mod





2012



60,000m Service

Oil + Filter change

Air filter change

Pollen filter change

Anti-freeze change

Brake fluid change

Fuel filter change



NO gearbox fluid change as advised not to ???



Air con check + regas

Replaced PCV breather with BMW

T4 check

Lower suspension arm (FL)

New Bonnet sensor

New radiator (other blew)

New spare key



2013: STARTED GETTING A KNOCK FRONT RIGHT. Replaced:



F Discs and pads

Drop links front and back

Lower suspension arm (FL)

Powerflex bushes: lower engine mount (new type) / wishbone rear bushes / F anti-roll bar bushes

Top strut bearings

Coolant hose

4 wheel laser alignment / balance





2014: STARTED GETTING CLUNKY GEARCHANGES



Oil change

Front springs and dampers (leaking fl)

Front drop links again

Top strut bearings again.

CV joints

Spring protectors

Condenser

Fan and motor (ac went) - THANKS TO JULES FOR A GREAT UPGRADE

New exhaust (Doesn’t fit)



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PROBLEMS: EVERYTHING IS BETTER WHEN CAR COLD. MUCH WORSE WHEN WARM.


Knocks: ONLY HAPPENS WHEN WARM. WHEN COLD, NO KNOCK.


Knock from front end (think driver’s side). Always at low speeds - town driving. When lifting off brake and starting to accelerate get a clunk. Again when lift off accelerator. Same with brake and when parking e.g. when stationary and turning the steering wheel a half turn left and right. If I rock the steering wheel a quarter turn left and right, knock is still there but less. Doesn’t happen when stationary and revving engine. Also get knock when turning engine on and off. Thought it was lower engine mount but that has been done.



Going through forums I’ve narrowed it down to these possibilities:



Lower arm balljoint.

Front anti roll bar where it fastens on to the strut link rod

Antirollbar links first

Lower balljoint pinch bolts

Track rod end

Suspension arms bushes bolts loose



?



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2. Gearbox Clunk


Gears are not super smooth but generally ok when car is cold. When warm and stop starting, gear changes jerky and clunk sometimes. Occasionally gearstick can feel resistant going into R from P when parked up and hot.



2-4 Duty solenoid or related to knock above? Or gearbox oil needs changing?





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3.Heavy steering:


Had an advisory of play in the steering rack. Think there might be a leak on the passenger side. Easy fix without replacing whole thing?





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Juddering tthrough car when breaking at low speeds or decelerating lightly. Not when heavy breaking. Better when cold. When warm it’s worse.



Rear Discs?? Haven’t touched them since I bought car.





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Poor acceleration from low revs with synergy:


This has never been right since I bought the synergy. When turned on, acceleration from low revs isn’t good. The engine sounds like it’s pinking or misfiring until I kickdown to get the revs up. It tends to be ok in sport mode. I replaced the EGR in 2012 with the cheaper alloy one on ebay. Fit wasn’t great but I made it fit with difficulty. Could egr leak be the cause?





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Metallic vibration under the car:


I thought it was the exhaust, but it doesn’t seem to be. At low speeds when accelerating or decelerating and when warm, I get what sounds like an exhaust vibration that sounds like it’s coming from the centre of the whole car. The heat shield is secure. Floor tray isn’t so secure though. Held up by zip ties. Could it cause such a big vibration?



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Airbags:


Just discovered they're not connected. The blue connector cables have been chopped under the car. Does this mean the airbags are still active but only for a prang and that the seat side airbags are disconnected?





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