Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 23rd January 2020, 18:03   #1
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Question Red exhaust rubbers?

Has anyone used these instead of these on a saloon's back box support prongs?

I've put two new black MGR ones on and I need to get them off again - I'll probably end up having to to cut them off. I've already got a new pair of red MGR ones so I'm wondering whether to risk using them to support the back box. Problem is: the black MGR ones are virtually bomb-proof and the red MGR ones aren't.

Pic: Left - used red WCS105390 / Centre - new black WCS100212 / Right - new black 3rd party

Blink is offline   Reply With Quote
Old 23rd January 2020, 18:53   #2
marinabrian
 
marinabrian's Avatar
 
MG ZT

Join Date: Jan 2011
Location: Newcastle Upon Tyne
Posts: 20,151
Thanks: 3,565
Thanked 10,837 Times in 5,718 Posts
Default

They will stretch as they are not designed to carry the weight of a silencer, and the box will flap around all over the place, so the answer is no you can't successfully use them

Brian
marinabrian is offline   Reply With Quote
Old 23rd January 2020, 20:16   #3
chris75
same car since 2005
 
chris75's Avatar
 
2001 Rover 75 2.0 v6 Connoisseur Saloon

Join Date: Nov 2006
Location: Ellesmere Port , Cheshire
Posts: 3,810
Thanks: 379
Thanked 549 Times in 466 Posts
Default

Quote:
Originally Posted by marinabrian View Post
They will stretch as they are not designed to carry the weight of a silencer, and the box will flap around all over the place, so the answer is no you can't successfully use them

Brian

The original black ones are built like a brick wotsit for a good reason
__________________
Who said it was simples ?
chris75 is offline   Reply With Quote
Old 23rd January 2020, 20:58   #4
Arctic
Give to Learn
 
Arctic's Avatar
 
Freelander 2

Join Date: Aug 2010
Location: West Midlands
Posts: 18,650
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
Default

Simon What is wrong with the black ones? I left mine on when I replaced the back box recently rubber grease used and the hanger fitted back on easy.

1

2

3
__________________
Arctic
Givology Learn to Give
Everything is Achievable

ad altiora tendo.

Check out our Nano meet dates
http://www.midlandsnanomeets.co.uk/

http://www.the75andztclub.co.uk/index.php?thepage=howto

" You do the work , we supply the expertise "
Arctic is offline   Reply With Quote
Old 24th January 2020, 12:46   #5
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default

Quote:
Originally Posted by marinabrian View Post
They will stretch as they are not designed to carry the weight of a silencer, and the box will flap around all over the place, so the answer is no you can't successfully use them

Brian
Quote:
Originally Posted by chris75 View Post

The original black ones are built like a brick wotsit for a good reason
Quote:
Originally Posted by Arctic View Post
Simon What is wrong with the black ones? I left mine on when I replaced the back box recently rubber grease used and the hanger fitted back on easy.

1

The problem I've got is the back box I put on earlier (Plan A) has had to be taken off.


Plan A - abandoned!
  • Catalytic converter: factory original (rest of factory system cut off)
  • Centre section: Klarius RR325Q
  • Front hanger rubbers: 2 new red WCS105390
  • Rear silencer: Bosal 278-967
  • Rear silencer mounting: Bosal oval clamp bracket (can be moved fore & aft) (similar to the one in Artic's pic above)
  • Rear hanger rubbers: 2 new black WCS100212
This system clears the rear ARB but the centre section doesn't line up with the tunnel (it's pulled too far over to the left) and the joint between the centre and rear pipes doesn't seal (the two pieces are slightly out of alignment).


Plan B - current!
  • Catalytic converter: factory original (rest of factory system cut off)
  • Centre section: Klarius RR325Q
  • Front hanger rubbers: 2 new red WCS105390
  • Rear silencer: Klarius RR323V
  • Rear silencer mounting: 2 fixed hangers
  • Rear hanger rubbers: 2 new black WCS100212
Very good joint between rear silencer and centre section (which does line up with the tunnel) but the rear silencer pipe hits the ARB. The solution would be to lower the rear silencer slightly but I can't do that because the fixed hangers on car and silencer become too far apart vertically to go through the two pairs of holes in the black rubbers. An elongated WCS100212 would be the answer, hence my original question about using red rubbers on the back (a silly idea to start with).

This is the RR323V:




Last edited by Blink; 24th January 2020 at 13:24..
Blink is offline   Reply With Quote
Old 24th January 2020, 13:15   #6
Arctic
Give to Learn
 
Arctic's Avatar
 
Freelander 2

Join Date: Aug 2010
Location: West Midlands
Posts: 18,650
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
Default

Quote:
Originally Posted by Blink View Post
The problem I've got is the back box I put on earlier (Plan A) has had to be taken off.


Plan A - abandoned!
  • Catalytic converter: factory original (rest of factory system cut off)
  • Centre section: Klarius RR325Q
  • Front hanger rubbers: 2 new red WCS105390
  • Rear silencer: Bosal 278-967
  • Rear silencer mounting: Bosal oval clamp bracket (can be moved fore & aft) (similar to the one in Artic's pic above)
  • Rear hanger rubbers: 2 new black WCS100212
This system clears the rear ARB but the centre section doesn't line up with the tunnel (it's pulled too far over to the left) and the joint between the centre and rear pipes doesn't seal (the two pieces are slightly out of alignment).


Plan B - current!
  • Catalytic converter: factory original (rest of factory system cut off)
  • Centre section: Klarius RR325Q
  • Front hanger rubbers: 2 new red WCS105390
  • Rear silencer: Klarius RR323V
  • Rear silencer mounting: 2 fixed hangers
  • Rear hanger rubbers: 2 new black WCS100212
Very good joint between rear silencer and centre section (which does line up with the tunnel) but the rear silencer pipe hits the ARB. The solution would be to lower the rear silencer slightly but I can't do that because the fixed hangers on car and silencer become too far apart vertically to go through the two pairs of holes in the black rubbers. An elongated WCS100212 would be the answer, hence my original question about using red rubbers on the back (a silly idea to start with).

Quote:
This is the RR323V:



HI Simon.
Could you not heat up the hanger on the back box & move the bend on the hanger, ie straighten it up but then bring the bend forward a bit so the back box would hang lower thus moving it away from the ARB ?
__________________
Arctic
Givology Learn to Give
Everything is Achievable

ad altiora tendo.

Check out our Nano meet dates
http://www.midlandsnanomeets.co.uk/

http://www.the75andztclub.co.uk/index.php?thepage=howto

" You do the work , we supply the expertise "
Arctic is offline   Reply With Quote
Old 24th January 2020, 13:48   #7
Tracker
Loves to post
 
MG ZT

Join Date: Sep 2015
Location: Dunmow
Posts: 350
Thanks: 139
Thanked 83 Times in 72 Posts
Default

This problem may be due to the connecting pipe from the front of the Klarius box being welded on at the wrong angle. I had this issue with a ZT version (i.e. straight tail pipes instead of downturned ones and larger bore pipe) of that same Klarius box last year. It was bought to connect to a brand new MGR NOS centre pipe I'd managed to source from an MG dealer (who'd had it in stock since 2005!) so I knew that the centre pipe was absolutely correctly positioned. My garage struggled but could not get the Klarius pipe to line up with the centre pipe and eventually worked out that it wasn't positioned correctly where it joined on to the box. I got a full refund from Euro Car Parts, and my garage managed to source a similar one that did fit OK.
Tracker is offline   Reply With Quote
Old 24th January 2020, 14:13   #8
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default

Quote:
Originally Posted by Arctic View Post
HI Simon.
Could you not heat up the hanger on the back box & move the bend on the hanger, ie straighten it up but then bring the bend forward a bit so the back box would hang lower thus moving it away from the ARB ?
You mean straighten existing bend A and re-bend the hanger at (say) point B?




NB. Just to illustrate the problem here's a pic of the closest point between the RR323V pipe and the ARB. This is with the back box lowered enough to allow a gap of about 15mm (I can just about get my index finger through).

Pic taken with camera beneath the middle of the spare wheel well looking forward to the left upper arm.

Blink is offline   Reply With Quote
Old 24th January 2020, 14:24   #9
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default

Quote:
Originally Posted by Tracker View Post
This problem may be due to the connecting pipe from the front of the Klarius box being welded on at the wrong angle. I had this issue with a ZT version (i.e. straight tail pipes instead of downturned ones and larger bore pipe) of that same Klarius box last year. It was bought to connect to a brand new MGR NOS centre pipe I'd managed to source from an MG dealer (who'd had it in stock since 2005!) so I knew that the centre pipe was absolutely correctly positioned. My garage struggled but could not get the Klarius pipe to line up with the centre pipe and eventually worked out that it wasn't positioned correctly where it joined on to the box. I got a full refund from Euro Car Parts, and my garage managed to source a similar one that did fit OK.
Hmm. I'm not sure you had the same problem. You were trying to line up a Klarius part with an MGR part and the angles might not have matched.

On mine both parts are Klarius and the angle of the RR323V 's entry pipe matches the angle of the RR325Q's exit pipe - they line up together perfectly and the centre section is still in line with the tunnel.

I think the problem could be that Klarius used a car without a rear ARB as the model - so the hanger length is too short** for cars with a rear ARB.

(** Or the bend is too low down the rod.)

Last edited by Blink; 24th January 2020 at 14:34..
Blink is offline   Reply With Quote
Old 24th January 2020, 14:42   #10
Arctic
Give to Learn
 
Arctic's Avatar
 
Freelander 2

Join Date: Aug 2010
Location: West Midlands
Posts: 18,650
Thanks: 1,155
Thanked 6,407 Times in 3,874 Posts
Default

Quote:
Quote:
Originally Posted by Blink View Post
You mean straighten existing bend A and re-bend the hanger at (say) point B?



NB. Just to illustrate the problem here's a pic of the closest point between the RR323V pipe and the ARB. This is with the back box lowered enough to allow a gap of about 15mm (I can just about get my index finger through).

Pic taken with camera beneath the middle of the spare wheel well looking forward to the left upper arm.

Hi Simon
Yes that was what I was thinking it could work for you, but also make sure as above it is lined up correctly, mine was touching a little until I twisted the back box a little then clamped it tight.
__________________
Arctic
Givology Learn to Give
Everything is Achievable

ad altiora tendo.

Check out our Nano meet dates
http://www.midlandsnanomeets.co.uk/

http://www.the75andztclub.co.uk/index.php?thepage=howto

" You do the work , we supply the expertise "
Arctic is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 11:30.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd