jos
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| posted on 31/5/05 at 02:52 PM |
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Alternatives to rivnuts/rivets
Could you suggest alternative fixing methods for fixing
1. Dash to scuttle
2. Interior panels to chassis
3. Transmission tunnel sides & top to transmission tunnel
Reason being is I would like to be able to remove all the above in the future and am not confident in my abilities of installing rivnuts as I seem to
squash the threads.
.: Motorsport / motor racing circuit / track wall art Apex Traxs :.
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MkIndy7
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| posted on 31/5/05 at 03:00 PM |
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If its only holding trim on, such as the transmission tunnel sides and top and the interior pannels,
Just Tap the Chassis as they don't take any load,
Much Cheaper!
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jos
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| posted on 31/5/05 at 03:06 PM |
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Yeah but then I need to buy a tap & die set, unless I can just get a tap on its own......
Hmmmm let me investigate.
I will also need to get some caps for the bolts or screw heads to stop Mr SVA man from hurting himself or is there a minimum projection under which
they are exempt??
.: Motorsport / motor racing circuit / track wall art Apex Traxs :.
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Danozeman
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| posted on 31/5/05 at 03:09 PM |
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Tap sets are quite cheap.. i got a draper set up to m8 for about 6 quid.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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MkIndy7
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| posted on 31/5/05 at 03:13 PM |
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We just used Stainless domed cap screws I think there called,
the type where you use an allen key to tighten them with for the tunnel top and nothing was said at the SVA,
look pretty smart as well.
And 1 tap (M8 That cuts the finished thread) I think we used would probably not be much dearer than all the rivnuts u'd need
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Kissy
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| posted on 31/5/05 at 04:22 PM |
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1. Dash to scuttle
Nylon number plate nuts+screws, cheap/light/black/radiused edges on screws
2. Interior panels to chassis
Pop-rivets - all the panels contribute to the stiffness to some degree - and which panels would you need to remove that frequently? How many interior
panels are there anyway?? And you'll need to put some form of inert barrier between ali and steel, to keep the panel quiet and to stop the
rot.
3. Transmission tunnel sides & top to transmission tunnel
I just used M4 countersunk stainless screws to hold the tunnel cover (3mm Polypropylene) on, threaded direct into the chassis, using M4 you actually
get a couple of pitches cut in 16g. Plenty of access via the top.
hope this helps.
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jos
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| posted on 31/5/05 at 04:39 PM |
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I like the stainless domed cap screws idea possibly with a washer under, we'll see.
Right, off to draper for a set of taps.
.: Motorsport / motor racing circuit / track wall art Apex Traxs :.
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kango
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| posted on 2/6/05 at 04:22 AM |
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Made my frame using 2.5 wall thickness tubing so all my panels are fixed by tapping M5 and M6 directly into the frame. Advantage is smaller holes into
the chassis than rivnuts and easily removable panels. What does a rivnut tool cost and what does a M5 and M6 tap costs?
Scuttle has some 5 mm tabs welded om and then M6 tapped. (Book style steel scuttle)
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DarrenW
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| posted on 2/6/05 at 08:03 AM |
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I fitted rivnuts for the first time with a MK hand tool with no problems. As long as you fit the tools mandrel right into the threads you shouldnt
deform the threads.
Engine bay side of scuttle - i fitted aly vertical panel - used big headed self tappers with no problems.
You can buy hex headed semi units - like a bolt with integral washer but thread is 'sharpened' at the end to make it self tapping. They
have a good coarse thread to get tight hold (heads may not be SVA friendly in certain applications).
To fix things to thin painels you can also buy captive nuts that clip over the edges of panels. Semi units screw into these nicely.
If all else fails you can rivet - drill them out to remove.
It could be worth popping along to an engineering supplies place and see what they have. Tell them your problem and they will suggest ideas. I have a
place in my town (Snowballs, railway street Bishop Auckland) who stock all sorts of usefull bits. Often in mixed kits so you can have an assortment.
Only problem is you will be tempted to pick up loads of things you dont need yet so that you have them in stock.
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jos
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| posted on 3/6/05 at 09:22 AM |
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What about rubber nuts
http://www.demon-tweeks.co.uk/catalogue/product_detail.asp?PCODE=BRAM4WN&GRP=MP078&PGRP=M005&CLS=MSPORT&code=BRAM5WN&from=search
r />
Anyone seen these or used them before for my applications???
[Edited on 3/6/05 by jos]
.: Motorsport / motor racing circuit / track wall art Apex Traxs :.
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