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Torque wrench for Rocker Cover

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chris32
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Torque wrench for Rocker Cover

Postby chris32 » Mon Mar 09, 2015 8:42 pm

I need to change the CAS O-ring on my '90 MX5. I read on this forum that the job is easier with the rocker cover off. However I also read that I should torque the bolts on the cover to 43-78 inch-pounds which I think is around 3.5-6.5 Foot pounds which in turn converts to 4.74-8.8 NM.
I do have a torque wrench but it's range only starts at about 20 NM. I bought it years ago to bolt a head down on another car.
Can anyone suggest a reasonably priced torque wrench that will go down to these lighter torques.
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blackyb
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Re: Torque wrench for Rocker Cover

Postby blackyb » Mon Mar 09, 2015 9:05 pm

I am hoping so as I could do with one as well???

:-D
1993 1.6 Eunos Roadster (gone)
1998 UK Mk 2 1.6 (gone)
2003 1.8 SVT Sport (Why did I sell it!!!!)
1991 1.6 Eunos Roadster with a bit of bling.

Life is a journey, best travelled topless in an MX5!!
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Re: Torque wrench for Rocker Cover

Postby Mazda Mender » Mon Mar 09, 2015 9:31 pm

Please please please do not ever use a torque wrench for this , most of the info on settings are to tight on the internet and will snap bolts.
Just Tighten them all up following the 1>14 and just go around again and just nip them up.
rocker cover.jpg
rocker cover.jpg (4.85 KiB) Viewed 419 times

M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.


Mk 1 Eunos 93 black V.S II 1.8 fettled,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 being rebuilt,
Mk 1 Eunos 90 1.6 (claimed by daughter)
Mk 1 Eunos 96 1.8 blue B2...being fettled
Mk1 Eunos 93 1.6 black S special being fettled
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
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Lazza
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Re: Torque wrench for Rocker Cover

Postby Lazza » Tue Mar 10, 2015 10:21 am

Just imagine the bolts are screwing into a block of cheese rather than aluminium - treat it carefully and it'll be fine. It's only an oil cover, nothing mechanical so no need for the bolts to be tight.
Lazza

2001 Mk2.5 MX5 1.8 Sport
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Mazda Mender
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Re: Torque wrench for Rocker Cover

Postby Mazda Mender » Tue Mar 10, 2015 10:30 am

:text-imwithstupid:
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.


Mk 1 Eunos 93 black V.S II 1.8 fettled,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 being rebuilt,
Mk 1 Eunos 90 1.6 (claimed by daughter)
Mk 1 Eunos 96 1.8 blue B2...being fettled
Mk1 Eunos 93 1.6 black S special being fettled
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
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blackyb
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Re: Torque wrench for Rocker Cover

Postby blackyb » Tue Mar 10, 2015 10:04 pm

Don't want the torque wrench for that particular process but I do for some work on my Two Wheelers!!

:bow-yellow:
1993 1.6 Eunos Roadster (gone)
1998 UK Mk 2 1.6 (gone)
2003 1.8 SVT Sport (Why did I sell it!!!!)
1991 1.6 Eunos Roadster with a bit of bling.

Life is a journey, best travelled topless in an MX5!!
chris32
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Joined: Wed Jan 28, 2015 6:09 am
Location: Hook, Hampshire

Re: Torque wrench for Rocker Cover

Postby chris32 » Sat Mar 14, 2015 9:52 am

Thanks for the replies.
I read this on the Miata forum.
"I have a 10mm socket on a 1/4" drive screwdriver handle type thing.... the handle is only half an inch diameter or so.... and I just do them up as tight as I easily can with my fingers gripping the handle....
Fletch."

I take the point, Lazza, about thinking of it as screwing the bolt into cheese. So my plan is to use a 1/4" Screwdriver socket and go round the sequence mentioned above a number of times, and not use a lever-style ratchet handle at all. I've also bought some silicon sealer. I guess the gasket is only soft rubber after all.

Does that sound OK to you?

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