Ball joint problem on front suspension arm Evo 6 tme

madmatt · 19-10-2020, 17:31

Well, another problem for me and my evo 6 tme. Bought some evo 5 ball joints for the front suspension arms here: https://www.ebay.co.uk/itm/MITSUBISH...53.m2749.l2649

And sure enough it won't fit. It scores the arms:

I've used 10T to press the ball joint in and it won't go further.

Anyone else experienced this?

Ross W · 19-10-2020, 19:53

Weve had a few customer call in with same issue some even cracking the arms trying!
Mitsi dont offer a OE replacement BJ's so Im not sure what these ebay guys are supplying.
Only option for 5 & TME is replacement wishbones as official service option.

Mita · 19-10-2020, 20:02

Buy new , I did

leeslancer8 · 19-10-2020, 20:06

Post a picture up of your arm Matt.

As Ross says full arm is the easiest option but you can push certain ball joints into the arms. Obviously not oem though

madmatt · 19-10-2020, 20:47

Quote:

Originally Posted by Ross W

Weve had a few customer call in with same issue some even cracking the arms trying!
Mitsi dont offer a OE replacement BJ's so Im not sure what these ebay guys are supplying.
Only option for 5 & TME is replacement wishbones as official service option.

The annoying thing is that the ball joints were fine! I replaced all bushes and ball joints for all rear suspension arms so I thought why not replace the front ball joints as well with what I thought would fit

I will try to see if I can re-use the one I've pressed out, if not then yea new arms

Dave-Cee · 19-10-2020, 23:37

Quote:

Originally Posted by leeslancer8

Post a picture up of your arm Matt.

As Ross says full arm is the easiest option but you can push certain ball joints into the arms. Obviously not oem though

Are yours I did for you still ok Lee?

Nowhere near that force to put them in

madmatt · 20-10-2020, 05:04

Quote:

Originally Posted by Dave-Cee

Are yours I did for you still ok Lee?

Nowhere near that force to put them in

Yea I bought hardrace ball joints for all the rear arms, they went in easy. Great quality items! No way near 10T needed to press them in.

leeslancer8 · 20-10-2020, 09:41

Quote:

Originally Posted by Dave-Cee

Are yours I did for you still ok Lee?

Nowhere near that force to put them in

Perfect mate only done 600mile but 400 of them hard track use.

Pushpex · 21-10-2020, 09:57

I thought the evo 6 had the ball joints in the knuckles, are you putting evo 5 arms on there? If you haven't put the old ones back in, you could try putting the ball joint in the freezer and the arm somewhere warm in the house for a bit, and go over the mating surface with a scotch pad to remove some of the paint

kikiturbo · 21-10-2020, 10:25

IIRC TME has ball joint in the arm, like later cars...

spn · 21-10-2020, 22:00

Quote:

Originally Posted by kikiturbo

IIRC TME has ball joint in the arm, like later cars...

Yes, the TME used Evo 5 arms, I'd be interested to know why; weight, cost, some other reason.

The Evo 6 arms give a lower roll centre which should be better from a handling perspective but do increase the unsprung weight when compared to the Evo 5 arm.

kikiturbo · 22-10-2020, 06:07

No difference in unsprung weight, and ball joint in the arm means higher roll centre which is actually better, esp on a lowered car.. The later cars had ball joints positioned lower and lower..

spn · 22-10-2020, 21:33

Quote:

Originally Posted by kikiturbo

No difference in unsprung weight, and ball joint in the arm means higher roll centre which is actually better, esp on a lowered car.. The later cars had ball joints positioned lower and lower..

Pick an Evo 6 an Evo 5 / TME arm up, you'll be able to feel the difference in weight.

In what way does raising the rollcentre improve things? Thanks

kikiturbo · 23-10-2020, 05:23

Quote:

Originally Posted by spn

Pick an Evo 6 an Evo 5 / TME arm up, you'll be able to feel the difference in weight.

In what way does raising the rollcentre improve things? Thanks

well, that ball joint weight is just moved to the upright, isnt it?

Position of the roll centre influences how much the car will roll/lean in a corner. Better said it is the distance between the centre of gravity and roll centre that defines the roll moment. The larger the distance between centre of gravity to the roll centre, the more the car will lean in the corner. Now. the real issue is that mcpherson suspension has the roll centre that is not fixed in relation to the car / centre of gravity, but moves with suspension movement. If the axis between the outer ball joint and inner arm joint is close to horizontal that movement will get quite large which is not the best for handling. This is the reason that lowering the car on its own usually makes the handling worse *****ill you stiffen the springs and ARB). Most of the lowered competition cars will have a corrected roll centre, via the extended bottom ball joints or different uprights.

super rover · 30-10-2020, 10:09

i replaces loads of ebay bottom ball joints

never had any issues ,

from your pic tho you need to see bright metal like the few MM you can see then it should go home ,plenty fo grease and she should jusy slip straight in there ,there a tight fit ,obviously but trying to push pass dirt and grime isnt going to help ,and will only lead to a cracked arm

19-10-2020, 17:31	#1
madmatt Senior User Join Date: Oct 2016 Posts: 726	Ball joint problem on front suspension arm Evo 6 tme Well, another problem for me and my evo 6 tme. Bought some evo 5 ball joints for the front suspension arms here: https://www.ebay.co.uk/itm/MITSUBISH...53.m2749.l2649 And sure enough it won't fit. It scores the arms: I've used 10T to press the ball joint in and it won't go further. Anyone else experienced this? Last edited by madmatt; 19-10-2020 at 17:33..

19-10-2020, 19:53	#2
Ross W Ross Sport Join Date: Jul 2006 Location: Près de Cambridge Car: 8.75 @ 163 Posts: 17,096	Weve had a few customer call in with same issue some even cracking the arms trying! Mitsi dont offer a OE replacement BJ's so Im not sure what these ebay guys are supplying. Only option for 5 & TME is replacement wishbones as official service option. __________________ Huge range of Standard Evo & Tuning parts available next day delivery @ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Tel: 01945-580066 / eMail To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

21-10-2020, 10:25	#10
kikiturbo Senior User Join Date: Feb 2008 Location: Croatia Car: EVO 9 GSR Posts: 2,795	IIRC TME has ball joint in the arm, like later cars... __________________ ACD/AYC pump repair video To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

22-10-2020, 06:07	#12
kikiturbo Senior User Join Date: Feb 2008 Location: Croatia Car: EVO 9 GSR Posts: 2,795	No difference in unsprung weight, and ball joint in the arm means higher roll centre which is actually better, esp on a lowered car.. The later cars had ball joints positioned lower and lower.. __________________ ACD/AYC pump repair video To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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19-10-2020, 20:02	#3
Mita Senior User Join Date: Jul 2013 Posts: 10,454	Buy new , I did

19-10-2020, 20:06	#4
leeslancer8 Senior User Join Date: Dec 2008 Car: EVO 8 260 - EVO 7 RSII - EVO 8 FQ320 MR - EVO 4 GSR Posts: 3,321	Post a picture up of your arm Matt. As Ross says full arm is the easiest option but you can push certain ball joints into the arms. Obviously not oem though

21-10-2020, 09:57	#9
Pushpex Senior User Join Date: Jun 2019 Posts: 144	I thought the evo 6 had the ball joints in the knuckles, are you putting evo 5 arms on there? If you haven't put the old ones back in, you could try putting the ball joint in the freezer and the arm somewhere warm in the house for a bit, and go over the mating surface with a scotch pad to remove some of the paint

30-10-2020, 10:09	#15
super rover acting daft since 1969 Join Date: Oct 2006 Location: PRESTON ,lancashire Car: E7 RS RALLY CAR Posts: 19,549	i replaces loads of ebay bottom ball joints never had any issues , from your pic tho you need to see bright metal like the few MM you can see then it should go home ,plenty fo grease and she should jusy slip straight in there ,there a tight fit ,obviously but trying to push pass dirt and grime isnt going to help ,and will only lead to a cracked arm