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Discussion Starter · #1 ·
Help required i have an evo 4 and when moving at very slow speed and turning right or left there is an exceptionally loud clonking coming from the rear, the noise is loud enough to be heard more so on the outside of the car. In a straight line the car drives fine but like i say very low speed ( 5mph ish) sounds blooming awful!!!????

Any help and advice would be welcomed......
 

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I had some problems with my VI
But it was coming from front left wheel when turning right
Are you sure it`s coming from back?
There shouldn`t be a difference for rear wheel if you`re driving straight or turning.
 

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Had the same when I bought my VI .
When I turned right at low speeds the left mount was knocking - although at first I thought it was g/box/trans box related

- turned out the front top mounts were knackered - although they were only 2 months old the mupet that fitted them had not heard of grease :mad:

Top mounts are a lot easier (generally) to replace than most other things it could be ;) Should be a two hour job, and the mounts are about £140 ish
 

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Discussion Starter · #4 ·
Cheers for that, i have since had time to remove the n/s/r driveshaft and have taken the gaiters off, i found that there is a notch on the outer c.v joint, as the shaft moves very slightly.
It does sound like its from the rear of the car but i will check all the shocks and mounts etc. I have heard that evo's suffer with this..... along with all the other faults!!!!!

I have also just changed all the fluids on the car to find that they all look as clean as the fresh oils i put in.. the previous owner must have looked after it, thats nice to know.

Once again cheers for your help, once i have replaced the joint i will let you know if its cured on not..... Fingers crossed........
 

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by all the receipts mine's on it's 3rd set ot front top mounts in as many months.
Although no grease doesn't help them!
I went for pillow mounts as they were only a few quid more than the Ralliart jobbies and shouldn't need replacing again ;)
 

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Discussion Starter · #6 ·
Whats the best way to check the condition of the mounts?
I would imagine taking them off is best, just wondered if there is a way of checking them in place?
 

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In my case i replaced first outer Cv joint, it was still noisy, then i went for LSD Bolts and.. they were fine!!! I admire Rich for his patience with my car. But at the end after driving a while with some more of new greas in top mounts it stopped!!!
So it worked out to be silly basic thing :)
Well we all learn on our mistakes.
Good luck with yours
 

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Discussion Starter · #8 ·
I have just replaced the n/s/r driveshaft assy, and have road tested the car, it is still knocking away as before but this time it seems to go if i dip the clutch whilst turning?
The car does 140mph in a straight line fine no probs, but at less than walking speed with it on either full right or left lock the knocking definitely seems to be from the rear as if somthings slipping in the diff? I have read a lot about bolt failure on evos is this with the gearbox/transfer box or rear diff? I have checked the anti roll bars all suspension mounting points etc nothing apparent.... I am getting peeved off with the poxy car, i would rather be spending time and money on making it go faster!!!
If anyone can shed some light i would appreciate it very much.
 

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Hi Did you manage to get this problem fixed? Got a friend who's got the same problem any help most welcome.
 

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Discussion Starter · #10 ·
Knocking diff

As yet havent had time too fix the car although have tried to isolate the problem, possibly due to the plates in the closed rear lsd tightening up, causing the knock on turns as pressure variation on each wheel passes through the diff.
I am definitly going to take the diff off again soon................
 

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Check what oil was put in rear diff ?.... i had a similar problem on my Evo2 which has a non-ayc mechanical lsd diff, when re-filled with fully synthetic oil it started to clunk and ping at slow speeds... like pulling out of junctions and turning etc, replaced oil with Mineral LS90 for normal lsd and cured it :) good luck.

Cheers
Ian
 

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Discussion Starter · #12 ·
Its off again!

Right back to it, i have once again removed the rear diff, previous to this i had a local independant gearbox specialist check the car first he identified the fault pretty much straight away.
It appears that the plates inside the rear lsd have Loosened causing them to slip when under pressures from turning as when turning a perm 4 whell drive car the pressure on the inside wheel is greater due to trying to turn through a smaller turning circle than the outside wheel. Hence the slip is causing the very excessive clunking noise. When i demonstrated it on a graveled surface you can actually see the wheel grabbing and slipping.
He has the diff now and seems to think he can do something with it, so i can only wait and see.

Evo's you either love em or hate em..............
 
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