×
A place for more technical discussions. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.
Re:Tell me about - wheel position in wheel arch
15 May 2020 08:09 #222250
by mlines
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Tell me about - wheel position in wheel arch was created by mlines
Our Gen4 has 215/75R15 tyres on it.
We did not notice any rubbing after fitment although it is possible we heard a noise on one occasion.
I have now fitted my own store 50mm lift, this is the first lift I have done on a Gen4.
In the interests of science, I did not fit castor correction bushes. I have never needed them on Gen3 Jimnys with the 50mm lift.
We now get a definite rub on small roundabouts, ie. car leaning whilst steering turned.
So, over to the Jury, explain to me:
1. Postion of wheel in wheel arch after a small lift, compared to standard (is it forward, back or motion path different as the suspension operates)
2. Addition of castor correction (via bushes), would this change position much,
Visually I can see no difference at all in the horizontal position of the wheel (clearly there is more space vertically).
I am currently trying to make up some sort of "tell tale" to find the rub as there are no clear marks on the tyre or body work.
Martin
We did not notice any rubbing after fitment although it is possible we heard a noise on one occasion.
I have now fitted my own store 50mm lift, this is the first lift I have done on a Gen4.
In the interests of science, I did not fit castor correction bushes. I have never needed them on Gen3 Jimnys with the 50mm lift.
We now get a definite rub on small roundabouts, ie. car leaning whilst steering turned.
So, over to the Jury, explain to me:
1. Postion of wheel in wheel arch after a small lift, compared to standard (is it forward, back or motion path different as the suspension operates)
2. Addition of castor correction (via bushes), would this change position much,
Visually I can see no difference at all in the horizontal position of the wheel (clearly there is more space vertically).
I am currently trying to make up some sort of "tell tale" to find the rub as there are no clear marks on the tyre or body work.
Martin
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Please Log in or Create an account to join the conversation.
Less
More
- Posts: 990
- Thank you received: 188
- Points: 5707.00
15 May 2020 08:37 #222252
by 300bhpton
Replied by 300bhpton on topic Tell me about - wheel position in wheel arch
Do you definitely think it is tyre rub and not something else? I know it can be hard to tell. I've not read of this being a problem and there seems to be a lot of kits varying from 40-80mm and people running not only 215's but 235/75's also.
Maybe you can shake/rock the vehicle side to side with another person looking for anything that might be getting close. Do this with and without steering lock applied.
I assume small round abouts you are not going super fast, nor loads of steering lock?
When I was under mine last night, I'd say the radius arms look pretty level at standard ride height. As they droop it should shorten the wheelbase slightly if this is the case. However I wouldn't expect a 2" lift to have a significant impact on this.
Maybe you can shake/rock the vehicle side to side with another person looking for anything that might be getting close. Do this with and without steering lock applied.
I assume small round abouts you are not going super fast, nor loads of steering lock?
When I was under mine last night, I'd say the radius arms look pretty level at standard ride height. As they droop it should shorten the wheelbase slightly if this is the case. However I wouldn't expect a 2" lift to have a significant impact on this.
Please Log in or Create an account to join the conversation.
15 May 2020 08:52 #222255
by mlines
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Replied by mlines on topic Tell me about - wheel position in wheel arch
I have not driven it hard yet, its my sons car and he is reporting it. I do imagine he is "enthusiastic" around roundabouts.
I have not properly looked at where it might rub. We had a brief look and there is a strange 2cm "flap" of plastic like a mini mud flap at the bottom of the front bumper which seems to be close.
I have never had issues with 50mm lift and these tyres on Gen3, but this is first Gen4
I have not properly looked at where it might rub. We had a brief look and there is a strange 2cm "flap" of plastic like a mini mud flap at the bottom of the front bumper which seems to be close.
I have never had issues with 50mm lift and these tyres on Gen3, but this is first Gen4
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Please Log in or Create an account to join the conversation.
15 May 2020 12:32 - 15 May 2020 12:46 #222269
by Jezz
It's been fettled just a tad.
Replied by Jezz on topic Tell me about - wheel position in wheel arch
1 The rear axle will be moved slightly forward, The front axle will be moved slightly to the rear, due to the arc of the radius arms. Longer arms will address this.
2 Caster bushes fitted correctly will only rotate the axle, not move it's position unless fitted like Dave has done.
3 Due to the lift, If using standard panhard rods the axle will no long be central longitudinally.
A bad drawing of where it will most likely be rubbing.
2 Caster bushes fitted correctly will only rotate the axle, not move it's position unless fitted like Dave has done.
3 Due to the lift, If using standard panhard rods the axle will no long be central longitudinally.
A bad drawing of where it will most likely be rubbing.
It's been fettled just a tad.
Attachments:
Last edit: 15 May 2020 12:46 by Jezz. Reason: spelling
Please Log in or Create an account to join the conversation.
15 May 2020 14:01 - 15 May 2020 14:02 #222272
by mlines
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Replied by mlines on topic Tell me about - wheel position in wheel arch
Thanks,
This is the sort of space we have
The front is deceptive in the picture as the tyre is inside the arch so should not touch the bumper edge under compression (we tried)
My feeling is that it is this small "mudflap" style rubber piece which is inside the wheel arch
This is where we have seen it get close. Cannot quite understand why this has appeared following a mild lift
This is the sort of space we have
The front is deceptive in the picture as the tyre is inside the arch so should not touch the bumper edge under compression (we tried)
My feeling is that it is this small "mudflap" style rubber piece which is inside the wheel arch
This is where we have seen it get close. Cannot quite understand why this has appeared following a mild lift
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Attachments:
Last edit: 15 May 2020 14:02 by mlines.
Please Log in or Create an account to join the conversation.
15 May 2020 17:53 #222280
by Jezz
It's been fettled just a tad.
Replied by Jezz on topic Tell me about - wheel position in wheel arch
Where ever it's rubbing, there will soon be a shiny spot.
It's been fettled just a tad.
Please Log in or Create an account to join the conversation.
15 May 2020 19:14 - 15 May 2020 20:26 #222283
by mlines
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Replied by mlines on topic Re:Tell me about - wheel position in wheel arch
I have just been out and thrown it around. Full lock turns in either direction with tyres squealing. I did not see or hear anything. Tried some braking as well to cause further dipping, no noise either.
So got to keep trying, son reckons he can recreate it, but I cannot.
Sent from my Pixel 2 XL using Tapatalk
So got to keep trying, son reckons he can recreate it, but I cannot.
Sent from my Pixel 2 XL using Tapatalk
Martin
2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses
Last edit: 15 May 2020 20:26 by mlines.
Please Log in or Create an account to join the conversation.
Less
More
- Posts: 9037
- Thank you received: 1807
- Points: 37641.00
16 May 2020 05:42 #222296
by Lambert
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Replied by Lambert on topic Re:Tell me about - wheel position in wheel arch
What sort of rubbing is he reporting because with those tyres I would expect a very pronounced noise frequency like a stick against railings, if it's not and is a more smooth higher or continuous frequency I might be looking underneath at other rotating assemblies not only the tyres.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Please Log in or Create an account to join the conversation.
16 May 2020 08:19 #222307
by kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.
My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0
Replied by kirkynut on topic Re:Tell me about - wheel position in wheel arch
Castor correction will put the front axle forward and the rear backwards and create more clearance in the locations identified above due to the rotation of the axles.
Kirkynut
Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.
My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0
Please Log in or Create an account to join the conversation.
16 May 2020 13:50 #222324
by Jezz
It's been fettled just a tad.
Replied by Jezz on topic Tell me about - wheel position in wheel arch
It's been fettled just a tad.
Attachments:
Please Log in or Create an account to join the conversation.
16 May 2020 14:02 - 16 May 2020 14:03 #222325
by Jezz
It's been fettled just a tad.
Replied by Jezz on topic Tell me about - wheel position in wheel arch
It's been fettled just a tad.
Attachments:
Last edit: 16 May 2020 14:03 by Jezz. Reason: spelling
Please Log in or Create an account to join the conversation.
- jackonlyjack
- Offline
- Platinum Member
-
Registered
Less
More
- Posts: 2955
- Thank you received: 663
- Points: 8704.00
16 May 2020 17:07 #222344
by jackonlyjack
Replied by jackonlyjack on topic Tell me about - wheel position in wheel arch
Just measured my gen3 wheelbase for first time
turns out it's 25mm longer than standard @ 2275mm
89.56" now i wonder if +4 arms will get me to 90"
turns out it's 25mm longer than standard @ 2275mm
89.56" now i wonder if +4 arms will get me to 90"
The following user(s) said Thank You: mlines
Please Log in or Create an account to join the conversation.
Time to create page: 0.215 seconds