Def swerves on left braking - HELP ME PLEASE

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26th July 2014, 06:34 AM
JDNSW

Quote:

Originally Posted by bismillah

Thanks John!

Last mechanic who deal with my car said he checked all the bushing and he didn't found any plays. Do I have to believe him? How can I check more?

My point of view is that the the problem is something that seems to be ok but on the other hand is not...
We are talking about a car that has 150k km and is kept perfectly with passionate attention :mad:

As suggested, but also, get underneath and try a lever between the axle and the lower link end - it should be impossible to get any signs of movement, just a bit of 'spring'. Make sure that the bolt appears to be in the centre of the loop on the end of the link.Have a close look at the front of the link - look for loose bolts and signs of any movement under the big nut. This tightens against a shoulder on the link, but the tube through the bush may still be loose, although in this case it usually clicks.
26th July 2014, 07:46 AM
wrinklearthur

Springing to action

Do as John has put forward, first.

If that doesn't cure the problem then change both front springs, it sounds to me that the LHS front spring has a incorrect rate, with a softer response to load and that also would cause the car to steer to the left as the axles articulate more together on that side.

You will find some paint marks on the coils of each spring ( talking standard Land Rover ones only ) if you can record those colours that are painted on them and post what they are on here, there is a list on AULRO to be able to check that you have the correct rated coil spring for each corner of the car.

Thinking back from this - ( but doesn't apply if your car is empty and without any heavy accessories ), if the springs are the correct rate for their position, then a poorly loaded car with a top heavy roof rack will have the exact same effect if the weight isn't distributed evenly. Keep always your heaviest parts of your load at the bottom and only ever carry light weight on the roof rack.
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26th July 2014, 08:09 AM
bismillah

Quote:

Originally Posted by wrinklearthur

Thinking back from this - ( but doesn't apply if your car is empty and without any heavy accessories ), if the springs are the correct rate for their position, then a poorly loaded car with a top heavy roof rack will have the exact same effect if the weight isn't distributed evenly. Keep always your heaviest parts of your load at the bottom and only ever carry light weight on the roof rack.
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Car empty, without any accessories. Like new:angel:
26th July 2014, 08:13 AM
bismillah

Quote:

Originally Posted by wrinklearthur

If that doesn't cure the problem then change both front springs, it sounds to me that the LHS front spring has a incorrect rate, with a softer response to load and that also would cause the car to steer to the left as the axles articulate more together on that side.

You will find some paint marks on the coils of each spring ( talking standard Land Rover ones only ) if you can record those colours that are painted on them and post what they are on here, there is a list on AULRO to be able to check that you have the correct rated coil spring for each corner of the car.

I will look for those colous but springs has never been touched and my car, when new, didn't have this problem:twisted: even though I will look
26th July 2014, 07:53 PM
DiscoV8scott

Do you happen to get any shuddering around 90/100kmh? I had a similar problem but it was almost constant, I rebuilt the swivels and new bearings. New tyres and brake lines. Found the problem was the front steering arm, pulled it off and there was the smallest bend in the centre ( rock damage ). Hope this can help.
27th July 2014, 02:32 AM
bismillah

Quote:

Originally Posted by bismillah

I will look for those colous but springs has never been touched and my car, when new, didn't have this problem:twisted: even though I will look

Here are the colours..

http://diafino.altervista.org/colore%201.JPG
http://diafino.altervista.org/colore%202.JPG
http://diafino.altervista.org/colore%203.JPG
http://diafino.altervista.org/colore%204.JPG
http://diafino.altervista.org/colore%205.JPG

:angel:
27th July 2014, 02:45 AM
bismillah

Quote:

Originally Posted by DiscoV8scott

Do you happen to get any shuddering around 90/100kmh? I had a similar problem but it was almost constant, I rebuilt the swivels and new bearings. New tyres and brake lines. Found the problem was the front steering arm, pulled it off and there was the smallest bend in the centre ( rock damage ). Hope this can help.

Actually a couple of months before I became aware of this braking problem, happened the at 90-100 km / h (especially when I leave the throttle at that speed) that the steering wheel started to shake. The whole thing was rod ends.:wasntme:
27th July 2014, 03:44 AM
Dopey

[QUOTE=bismillah;2189114]

"Toe and wheels (i've tried also other 4 wheels) are ok"

Just wondering, what are your measurements for the Toe in or Toe out?
A lot of Defenders get set up wrong.....

Regards,
Mike.
27th July 2014, 06:25 AM
n plus one

[quote=90@;2192097]

Quote:

Originally Posted by bismillah

"Toe and wheels (i've tried also other 4 wheels) are ok"

Just wondering, what are your measurements for the Toe in or Toe out?
A lot of Defenders get set up wrong.....

Regards,
Mike.

Good point, everybody just sets ' em toe in by force of habit/ignorance.

I wonder if part of the issue is road camber sensitivity - is the issue apparent in a non-cambered surface?
27th July 2014, 07:37 AM
wrinklearthur

[quote=n plus one;2192109]

Quote:

Originally Posted by 90@

I wonder if part of the issue is road camber sensitivity - is the issue apparent in a non-cambered surface?

Try the braking test on a flat surface like a old air strip or large car park.

Ref; http://www.aulro.com/afvb/90-110-130...ml#post1696064

90 4 seat station wagon (2550 Kg).
Front - Passenger side REB500220 Red/green/orange
Front - Driver's side REB500200 Red/green/white
Rear - Passenger side RKB500310 White/green/purple
Rear - Driver's side RKB500270 White/green/pink

90 4 seat station wagon (2400 Kg).
Front - Driver's side REB500200 Red/green/white
Front - Passenger side REB500220 Red/green/orange
Rear - Driver's side RKB500290 Red/green/green
Rear - Passenger side RKB500280 Red/green/red

110 heavy duty and all 130 (3500Kg).
Front - Driver's side NRC 9448 Blue/red
Front - Passenger side NRC 9449 Yellow/white
Rear - Both sides RKB101111 Purple/brown

-------------------------------------------------------

Ref; PART

Quote:

APPLICATION Right Hand Drive VEHICLES

Is your Defender Left hand Drive?

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