MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: TheTigerUK on March 3, 2022, 18:12

Title: Tinny rattle ?
Post by: TheTigerUK on March 3, 2022, 18:12
I often get a tinny rattle from the back end when moving off, when not doing high revs or when I take my foot off the accelerator especially if going slow or if I change up to early etc etc.

Is this the norm from the exhaust or from one of the heat shields ?

Its not a major problem but it niggles :)

Thanks
Title: Re: Tinny rattle ?
Post by: Ardent on March 3, 2022, 18:31
Sheilds are often top of the list of usual suspects.

There can be a sneaky rattle in the cat shield. There can be some sort of spacer that detaches and can rattle inside the outer sheild.
Title: Re: Tinny rattle ?
Post by: Joesson on March 3, 2022, 18:33
Quote from: TheTigerUK on March  3, 2022, 18:12I often get a tinny rattle from the back end when moving off, when not doing high revs or when I take my foot off the accelerator especially if going slow or if I change up to early etc etc.

Is this the norm from the exhaust or from one of the heat shields ?

Its not a major problem but it niggles :)

Thanks


That will be the catalyser heat shield welds breaking particularly around the exhaust flexi area. DIY mendable, I did mine at same time as de pre cat.
PS .That is to say exactly what Jason said
Title: Re: Tinny rattle ?
Post by: paulj on March 3, 2022, 20:05
If you are not changing any exhaust components you can solve the rattle by wrapping jubilee clips/straps around them. I did that to mine about 3 years ago as a temporary fix and it is still permanently temporary.
Title: Re: Tinny rattle ?
Post by: J88TEO on March 3, 2022, 20:41
I used a TamTorque clip on mine and no more rattles. Drove me mad!
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 3, 2022, 22:21
Thanks for the replies, any chance of a photo showing me were the rattle is, sorry.
Title: Re: Tinny rattle ?
Post by: paulj on March 4, 2022, 07:41
You'll spot it if you get under the car and knock the heat shields.  Make sure it is cold first!  The shields have small tack welds and rusty nuts holding them in place so you will see the ones which are loose.  One of mine wasn't a weld, it was a nut that had rusted enough to allow movement.  If I remember when home this weekend I will add a photo
Title: Re: Tinny rattle ?
Post by: J88TEO on March 4, 2022, 09:40
! swapped out a few bolts & nuts and added the clamp to the mid section.
Title: Re: Tinny rattle ?
Post by: Joesson on March 4, 2022, 10:25
Quote from: J88TEO on March  3, 2022, 20:41I used a TamTorque clip on mine and no more rattles. Drove me mad!


I had to Google that. Now I note that these can be fastened / unfastened only with a special tool apparently a 1/4 inch hexagon, is that correct, did you already have the special tool?
Title: Re: Tinny rattle ?
Post by: J88TEO on March 4, 2022, 10:28
Yes you need the TamTorque too - its special and different from the usual hex bit you get.
We use these clamps at our work ( putting up parking signs ).
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 5, 2022, 16:19
Have I found the culprit ? :) awkward to get too.

(https://i.imgur.com/ptYW1fs.jpg)
Title: Re: Tinny rattle ?
Post by: Carolyn on March 5, 2022, 16:25
That'll be the bugger.  Take the nappy off and it's no problem.
Title: Re: Tinny rattle ?
Post by: normanh on March 5, 2022, 17:17
Thats exactly the same as mine went, I also found the the weld on the lower shield cracked as well when I replaced the cat.

Norman
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 6, 2022, 16:57
Quote from: Carolyn on March  5, 2022, 16:25That'll be the bugger.  Take the nappy off and it's no problem.

Took your advice (again) and like you say much easier, three bolts in total had rusted away.

Nappy came off without problem but I would like to replace the three self tappers at the rear, any idea what the correct ones are ? thanks.

Really nice to drive without hearing the occasional rattle.

(https://i.imgur.com/KkfxNzZ.jpg)
Title: Re: Tinny rattle ?
Post by: Carolyn on March 6, 2022, 17:19
@TheTigerUK

M6 x 1.5 by quite short.  ;D
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 6, 2022, 17:27
Quote from: Carolyn on March  6, 2022, 17:19@TheTigerUK

M6 x 1.5 by quite short.  ;D

Thats what was at the front but at the rear there was 3 self tappers.
Title: Re: Tinny rattle ?
Post by: Carolyn on March 6, 2022, 17:31
Ah - they are quite fat ones.  I can't recall the size, but they can come with a 10mm AF dead on them.  On fleabay
Title: Re: Tinny rattle ?
Post by: Joesson on March 6, 2022, 18:01
Quote from: J88TEO on March  4, 2022, 10:28Yes you need the TamTorque too - its special and different from the usual hex bit you get.
We use these clamps at our work ( putting up parking signs ).

Thank you, now I have to find something to use them on!
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 6, 2022, 20:02
Quote from: Carolyn on March  6, 2022, 17:31Ah - they are quite fat ones.  I can't recall the size, but they can come with a 10mm AF dead on them.  On fleabay

I think they could be these 90159-60383.
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 10, 2022, 13:23
Quote from: Carolyn on March  6, 2022, 17:31Ah - they are quite fat ones.  I can't recall the size, but they can come with a 10mm AF dead on them.  On fleabay

These are the ones, arrived today.

(https://i.imgur.com/q3CRnPl.jpg)
Title: Re: Tinny rattle ?
Post by: paulj on March 10, 2022, 20:55
I applaud your attention to detail with searching out OEM self tappers. I would have probably gone with "whatever was in the shed"
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 11, 2022, 16:21
My other hobby is watches and if possible when restoring a watch especially vintage we always want to use original parts whenever available even if they cost quite a lot more, the use of aftermarket parts is becoming more and more necessary but i'm not keen but has OEM parts dry up there is often no choice.

ps: It is a pleasure to drive now that the tinny rattle is no more :)
Title: Re: Tinny rattle ?
Post by: J88TEO on March 11, 2022, 21:35
Do you restore watches?
I have 2 Seikos - not worth much but has sentimental value to me.
Title: Re: Tinny rattle ?
Post by: Ardent on March 11, 2022, 22:05
@J88TEO

https://www.mr2roc.org/forum/index.php?msg=863485
Title: Re: Tinny rattle ?
Post by: TheTigerUK on March 11, 2022, 22:47
Quote from: J88TEO on March 11, 2022, 21:35Do you restore watches?
I have 2 Seikos - not worth much but has sentimental value to me.

It is mainly Seiko that I collect, I did have 400 at one time but i'm down to less than 80 now, parts are getting hard to find and expensive, repairs often cost way more than the watch is worth.
Title: Re: Tinny rattle ?
Post by: J88TEO on March 12, 2022, 09:44
Quote from: Ardent on March 11, 2022, 22:05@J88TEO

https://www.mr2roc.org/forum/index.php?msg=863485

@Ardent - thanks for the link.
Cheers.