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Old 25th May 2021, 22:50   #1
triple e
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Rover 75 Saloon, Connoisseur CDT SE Automatic 4 Door

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Default Best Support for Exhaust Back Box

I've been supplied with replacement exhaust back box rubber hangers for my Rover 75 CDI. They have hole centre spacing of 30mm. Having checked the two failed hangers I see they are 40mm.
Is there a known best of these options for either service life or exhaust silencing in the car?
A small detail I know but I'm keen to get it right before I struggle to fit them in a very confined space.
I will appreciate any advice or comments - thanks in advance.
John
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Old 26th May 2021, 08:38   #2
ceedy
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Would expect the old ones to have stretched somewhat, and the new ones won't be 30mm once under the load of the exhaust ..


And they are alway hard work without pulling hooks .
And lube them up well .



C





Quote:
Originally Posted by triple e View Post
I've been supplied with replacement exhaust back box rubber hangers for my Rover 75 CDI. They have hole centre spacing of 30mm. Having checked the two failed hangers I see they are 40mm.
Is there a known best of these options for either service life or exhaust silencing in the car?
A small detail I know but I'm keen to get it right before I struggle to fit them in a very confined space.
I will appreciate any advice or comments - thanks in advance.
John
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Old 26th May 2021, 10:53   #3
triple e
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Thanks for your info - the old ones are much larger (wider) and would have been near enough 40mm when new.
I think lubrication will be essential but I'm still not sure whether to fit the 30mm versions.
Any other comments/advice will be appreciated.
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Old 26th May 2021, 16:13   #4
triple e
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For anyone following this query of mine I thought an update might be helpful if they have a similar challenge.
I have now fitted these hangers and used the following sequence.
First I removed the securing nut & bolt and carefully spread open the bracket around the back box. This gives more space to manipulate between the back box and the hanger supports
Then push on the rubber hangers to the hanger supports under the car - using rubber lubricant and quite a lot of force!
Finally (still using rubber lubricant) pushed on the bracket hanger supports onto the fitted rubber hangers in turn, first nearest the side of the car.
Forming the bracket around the back box again and refitting the nut & bolt completes the job.
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Old 26th May 2021, 16:53   #5
chris75
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Having had problems with several backbox hangers I bit the bullet and bought the fat ones from Rimmers . They appear to be the same for all models . Not cheap but so much better if you don't like the exhaust bouncing
https://rimmerbros.com/Item--i-WCS100212
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Old 27th May 2021, 06:40   #6
BillyMG
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I hate those rubber hangers!! Pain of a job getting them on and off - I cut my old ones off with a hacksaw in a fit of rage and fury after being Mr Nice Guy failed to remove them
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