Under bonnet insulation, worth doing?

General Chat with an emphasis on BMC Minis & Other iconic cars of the 1960's. Includes information on MK1 Action days.
User avatar
mk1
Site Admin
Posts: 19686
Joined: Thu Jun 24, 2010 11:30 am
Location: York-ish
Contact:

Re: Under bonnet insulation, worth doing?

Post by mk1 »

Yup, that was the issue. As I say, now sorted.
User avatar
Bitsilly
Posts: 832
Joined: Fri Jun 19, 2020 8:09 pm
Location: Wales

Re: Under bonnet insulation, worth doing?

Post by Bitsilly »

If it is the drumming noise you want to get rid of, I would guess it may be best to use self adhesive bitumen based sheets. Like Dynomat.
Then you could put it on the inside rather than the engine bay.
You will learn to love the stuff!
User avatar
mk1
Site Admin
Posts: 19686
Joined: Thu Jun 24, 2010 11:30 am
Location: York-ish
Contact:

Re: Under bonnet insulation, worth doing?

Post by mk1 »

I reckon the triangular sound deadening under the bonnet ois well worth doing. I does cut down on the noise & it also gives the bonnet a good weighty feel.

I have it on nearly all my cars.
User avatar
Joel Welsh 4769VU
Posts: 193
Joined: Sun Aug 21, 2022 5:54 pm
Location: Wauseon, Ohio, USA

Re: Under bonnet insulation, worth doing?

Post by Joel Welsh 4769VU »

If its not an originality thing- would something like dynamat work with the sound deadening situation? It's what it's made for, and pretty durable stuff... just not cheap.

https://www.dynamat.com
Wauseon, Ohio- United States
1964 mk1 Austin Cooper "Dianna"
Tartan red and black
I can't take credit for what others built- all I can do is try to put her back on the road. :shock:

You just can't fix stupid... you can hide it sometimes though... :lol:
User avatar
MiNiKiN
Posts: 829
Joined: Tue Oct 10, 2017 3:15 pm
Location: Graz/Austria // NN1 4ST previously

Re: Under bonnet insulation, worth doing?

Post by MiNiKiN »

Joel Welsh 4769VU wrote: Wed Mar 15, 2023 4:49 am If its not an originality thing- would something like dynamat work with the sound deadening situation? It's what it's made for, and pretty durable stuff... just not cheap.

https://www.dynamat.com
Here is a cheaper alternative to Dynamat
They offer both: Butyl- and felt based insulation.

https://www.heatshieldings.com/en/sound-insulation/
Yes I am a nerd: I am researching the Austrian Mini-racing scene of the 60s and 70s :ugeek:
User avatar
Exminiman
Posts: 2554
Joined: Tue Jan 17, 2017 8:59 am
Location: Berkshire UK

Re: Under bonnet insulation, worth doing?

Post by Exminiman »

For max sound deadening, combination of anti drum pads and sound insulation might work well ?
User avatar
snoopy64
Posts: 1212
Joined: Sat Mar 07, 2015 8:40 pm
Location: @-80C in West Berkshire, UK

Re: Under bonnet insulation, worth doing?

Post by snoopy64 »

Update on the Minispares bonnet triangles… they still fall apart after the first run up the road!!!
Cheers

Kevin
rolesyboy
Posts: 2283
Joined: Fri Jun 25, 2010 10:57 am
Location: Colchester, Essex

Re: Under bonnet insulation, worth doing?

Post by rolesyboy »

That’s odd. I put mine on and have done 800 miles since. No problem and no signs of fatigue at all.
Rolesyboy
User avatar
whistler
Posts: 776
Joined: Sat Nov 05, 2016 6:02 pm
Location: Cardiff

Re: Under bonnet insulation, worth doing?

Post by whistler »

Just fitted the Minispares kit under the bonnet of my Mk1. Had to chop all 4 pieces to make them fit. Very poor Minispares.
User avatar
mk1
Site Admin
Posts: 19686
Joined: Thu Jun 24, 2010 11:30 am
Location: York-ish
Contact:

Re: Under bonnet insulation, worth doing?

Post by mk1 »

snoopy64 wrote: Thu Apr 20, 2023 5:28 pm Update on the Minispares bonnet triangles… they still fall apart after the first run up the road!!!
Oh Great!

I had been assured that they had chucked all the duff stuff out & replaced it with original hardura.
Post Reply