Noisy suspension and stiff steering - Page 2

colinbos · Jun 30th, 2019, 14:34

Quote:

Originally Posted by WarrenandZoe

Ah ok didn't know about the bolts, thank you
Are the bolts a must? The description of the inserts doesn't mention it, just remove bolt, put the insert in and put the bolt back in

Without upsetting the purists.... I fitted them, and reused the old bolts. 30k miles later - no issues.

WarrenandZoe · Jun 30th, 2019, 15:03

I've been reading up on them, quite a few have used original bolts with no issues 🤔 what difference if any did you notice with the inserts?

gmonag · Jun 30th, 2019, 20:49

Torque To Yield (TTY or stretch) bolts are designed to be tightened until the metal begins to yield i.e. fail. The tension in the bolt then keeps everything tight. If you re-use a bolt, you will over-stretch the metal, with unpredicable results - your decision.

The inserts certainly do stiffen up the subframe/chassis junction.

WarrenandZoe · Jun 30th, 2019, 21:03

Is it possible to replace with non-TTY bolts? If so, what are measurements of the bolts?

gmonag · Jul 1st, 2019, 20:36

They are only £8 each

https://www.ebay.co.uk/itm/Genuine-V...wAAOSwA4dWKK60

Just get the correct part!

SwissXC90 · Jul 1st, 2019, 21:27

Quote:

Originally Posted by colinbos

Without upsetting the purists.... I fitted them, and reused the old bolts. 30k miles later - no issues.

Yeah but it's a gamble:

Used bolts may, or may not be, OK to reuse. Some people may have good experience, some not.

Brand new bolts are always guaranteed to be OK.

WarrenandZoe · Jul 4th, 2019, 15:41

Update - I have replaced lower torque arm and put the subframe inserts in, the car pulls better and slight difference in handling but has made no difference to noise and the car pulling when braking

WarrenandZoe · Jul 6th, 2019, 15:04

Does anybody have any suggestions? I have replaced torque arm, top mount and done the poly inserts on the subframe and if anything the noise is worse, it bangs under my feet on start up and when I turn the engine off, also repeatedly knocks when I put in on a full lock

gmonag · Jul 7th, 2019, 19:59

Quote:

it bangs under my feet on start up and when I turn the engine off,

It is probably engine/exhaust mount related if it happens when stationary. Get under the car during start up/shutdown - SAFELY!

WarrenandZoe · Jul 8th, 2019, 13:34

I've had a look and think possibly rear engine mount, the gearbox is sat on the subframe rubber bump stop, is there a step by step guide to changing?

Jun 30th, 2019, 20:49	#13
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	Torque To Yield (TTY or stretch) bolts are designed to be tightened until the metal begins to yield i.e. fail. The tension in the bolt then keeps everything tight. If you re-use a bolt, you will over-stretch the metal, with unpredicable results - your decision. The inserts certainly do stiffen up the subframe/chassis junction. __________________ Greg

Jul 1st, 2019, 20:36	#15
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	They are only £8 each https://www.ebay.co.uk/itm/Genuine-V...wAAOSwA4dWKK60 Just get the correct part! __________________ Greg

Jun 30th, 2019, 15:03	#12
WarrenandZoe Member Last Online: Jul 17th, 2022 20:14 Join Date: Jun 2019 Location: Stoke-on-Trent	I've been reading up on them, quite a few have used original bolts with no issues 🤔 what difference if any did you notice with the inserts?

Jun 30th, 2019, 21:03	#14
WarrenandZoe Member Last Online: Jul 17th, 2022 20:14 Join Date: Jun 2019 Location: Stoke-on-Trent	Is it possible to replace with non-TTY bolts? If so, what are measurements of the bolts?

Jul 4th, 2019, 15:41	#17
WarrenandZoe Member Last Online: Jul 17th, 2022 20:14 Join Date: Jun 2019 Location: Stoke-on-Trent	Update - I have replaced lower torque arm and put the subframe inserts in, the car pulls better and slight difference in handling but has made no difference to noise and the car pulling when braking

Jul 6th, 2019, 15:04	#18
WarrenandZoe Member Last Online: Jul 17th, 2022 20:14 Join Date: Jun 2019 Location: Stoke-on-Trent	Does anybody have any suggestions? I have replaced torque arm, top mount and done the poly inserts on the subframe and if anything the noise is worse, it bangs under my feet on start up and when I turn the engine off, also repeatedly knocks when I put in on a full lock

Jul 8th, 2019, 13:34	#20
WarrenandZoe Member Last Online: Jul 17th, 2022 20:14 Join Date: Jun 2019 Location: Stoke-on-Trent	I've had a look and think possibly rear engine mount, the gearbox is sat on the subframe rubber bump stop, is there a step by step guide to changing?

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