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Thorlek
 Post subject: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 12:10 pm 
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Hey All,

I have a heater valve blanking plate, and a fuel pump blanking plate which need to attach but I dont know what nuts/bolt to buy to attach them.

Can i use nuts to attached the heater blanking plate? or do I need studs + nuts? and what size thread?

For the fuel pump, there are already studs in the block, but no nuts, so what size nuts should I buy?

Thanks!

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drmini in aust
 Post subject: Re: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 12:17 pm 
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Blanking plate / heater connection on head is 1/4" UNF, you can use either bolts, or studs + nuts.
Nuts on the fuel pump studs are 5/16" UNF.

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Thorlek
 Post subject: Re: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 12:30 pm 
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Awesome, Thanks.

If I get nuts for the heater connection, what length should I get? I presume the holes aren't very deep?

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drmini in aust
 Post subject: Re: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 3:16 pm 
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Thorlek wrote:
Awesome, Thanks.

If I get nuts for the heater connection, what length should I get? I presume the holes aren't very deep?

I think you are confusing bolts, nuts and studs..!
If it has nothing in there now, go buy two bolts, 1/4" UNF x 1/2" long. With a spring washer on each. Less hassle than studs and nuts.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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Thorlek
 Post subject: Re: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 4:01 pm 
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drmini in aust wrote:
I think you are confusing bolts, nuts and studs..!

Urrgh, im such a n00b, need to spend less time at work on computers and more time in the shed.

oh well...
I picked the stuff I needed up just before, so hopefully im all good now :-)

Thanks!

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Mick
 Post subject: Re: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 4:21 pm 
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Kev, would I be mad if I seemed to think they were 1/4 UNC to the head?

I screwed up a thread a little while back and seem to remember they were UNC...

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drmini in aust
 Post subject: Re: Nuts and Bolts!
PostPosted: Mon Jan 04, 2016 5:44 pm 
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Mick wrote:
Kev, would I be mad if I seemed to think they were 1/4 UNC to the head?

I screwed up a thread a little while back and seem to remember they were UNC...

Nope, they are all 1/4 UNF unless someone has retapped them.
Manifold stud holes are 5/16 UNF, rocker stud and thermo housing stud holes both 5/16 UNC.

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michaelb
 Post subject: Re: Nuts and Bolts!
PostPosted: Tue Jan 05, 2016 5:29 pm 
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Usually all threads into steel are UNF and if the thread is in alloy parts, such as gearbox or flywheel housing it is UNC.

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drmini in aust
 Post subject: Re: Nuts and Bolts!
PostPosted: Tue Jan 05, 2016 5:51 pm 
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michaelb wrote:
Usually all threads into steel are UNF and if the thread is in alloy parts, such as gearbox or flywheel housing it is UNC.

True but there are exceptions, particularly for studs, eg oil filter, fuel pump and head studs screwed into the block are all UNC. But they have UNF nuts on em.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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michaelb
 Post subject: Re: Nuts and Bolts!
PostPosted: Tue Jan 05, 2016 6:37 pm 
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:) I was waiting for you to jump on me.
I did say "usually"

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1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged) :)
2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S
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drmini in aust
 Post subject: Re: Nuts and Bolts!
PostPosted: Tue Jan 05, 2016 9:22 pm 
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:oops: Sorry mate!!

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