For all you with loose nuts!
Turbo Mini Forums

Hi,

I've got a few nuts loose or a screw loose one or the other! lol.

My turbo to ex manifold nuts keep falling off, I know this is common for this to happen, and I know there are loads of ways to stop this, but one way I'm trying at the mo is very quick and easy and you'll still be able to get them off if needed.

So before you all say about the other ways of doing it (which I do know cheers)

I've put some good chemical metal around the treads and then done the nuts up tight, I'll keep you upto date if it works.

MW

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

How do they come off? is it through vibration or expansion of the metal?

Back once again like a renegade master

i would say a bit of both mate. hot, cold hot cold and the movement of the engine.

When I used lock tabs the nuts didn't come off but they still kept coming loose.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Might brass manifold nuts do the job or is this what youre using?

Back once again like a renegade master

Have you tried using those nuts that have a slightly oval hole in them?

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1/4mile in 13.2sec @ 111 terminal on 15psi

Proper name Binx or Aerotight nuts

not yet Matty, that's the next step after this little test.

flash bugger Tom!

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Lol..that'll be the ones. Ditto the flash bugger

We use them at work, definitely a good alternative to nyloc nuts with high temp applications!

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www.fusionfabs.co.uk



1/4mile in 13.2sec @ 111 terminal on 15psi

Matt, I was having exactly the same problem. I now use Nordlock washers under the nuts. They are a two part lock washer and have proved very sucessful. P.M. me your address and I'll pop some in the post for you.
David.

Are they like the ones that have a Halo like ring above em connected to em?

Back once again like a renegade master

They come loose with lock tabs on em ????

Although lock tabs are a PITA.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

No, they're a bit hard to describe but basically it comprises two separate serated washers which have steps on the mating faces that lock into each other.

n.g.l. I know what you mean, I have some of these on my elbow bolts, they are a clever bit of kit.

Matt you could also try "Schnorr" washers, they are like a serratted belville washer, used on WRC cars, very very good indeed, have used them a lot on rally cars before. Available from Demon Tweeks, look on their site search for "Schnorr" or "Safety Washers".

Locking wire another option?
or are you removing them frequently?

Back once again like a renegade master

double nut them mat

nyloc's do the trick for me! nothing better than some heated plastic goo to stop them vibrating loose!

(to be fair it was all i had at the time and they seem to do the trick!)

i think this needs further analysis...





whats actually happening is matts car has developed its own personality ,


and is rejecting the turbo like a bad kidney , ,

what matt thought was a slight missfire, and sounded like attchee atchtee ,





was in reallity the engine saying cheee teee chee teee ....





it wants a more modern turbo matt ,take pity on the pooor weee thing man !!!

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

bin the nuts and weld the turbo to the manifold?

I use K nuts all the time at work as i said last week at JohnK's place. Have a deformed thread at the end which nips on the thread of the stud. They do a special high temperature variety as well which i believe is silver.

I've never had a problem!

But I do use new studs and new brass nuts each time.

Alex

AlexF

I don't understand how putting 'whippy whoppy' nuts on there isn't shifting the risk onto the studs unwinding?

There seems to be some very smart solutions for V8 motors for this same problem however.

Nylocs for me too!!

Every day is a school day ...........

How fast and how expensive ...... the same question...