Lost my nuts.

[Grendel]

It would appear I have lost one of the old castle nuts that attach the manifold onto the Mongoose exhaust. Could someone tell me what there proper name and part number is and what torque setting I need to put them on with so they don’t undo again please. I did buy a couple a long while back but lost them before i fitted them

Also is it worth sticking some liquid gasket in there before I bolt it all together again?

[kevin..in]

you need some M10 X 1.25mm pitch metric fine "stiff" nuts not Nyloc ones from your local engineers merchants probably best to get stainless ones

[Grendel]

you need some M10 X 1.25mm pitch metric fine "stiff" nuts not Nyloc ones from your local engineers merchants probably best to get stainless ones

These the ones you mean?

http://www.bresco.com/acatalog/Exhaust_ ... Studs.html

http://www.stayfastdirect.co.uk/product ... eecb5f4a40

[kevin..in]

first link are way too stupidly expensive & second link are just std. nuts
genuine ones from Toyota are only about £1.00 each i recon from an engineers mercchant they will be no more than 40p

Ok now you have edited 2nd link they are what you need but a qty. of 50 is a bit of overkill! you will get them in qty. of 1 from engineers merchants

[Grendel]

sorry changed link while you posted. So theses wont fit?

http://www.stayfastdirect.co.uk/product ... eecb5f4a40

I think the Toyota ones cost just under £5 for the 2.

[kevin..in]

sorry changed link while you posted. So theses wont fit?

http://www.stayfastdirect.co.uk/product ... eecb5f4a40

I think the Toyota ones cost just under £5 for the 2.

yes they are fine for what you need

last time i got them from mr T they were 80p + Vat and £1325 + vat for the studs

[Grendel]

Any idea what the torque setting would be so the bloody things dont come off again.??

[mr2mk1chick]

£1325 + vat for the studs

I'd heard mrT were pricey......

[Grendel]

Mr T want £8.17 for studs & Nuts. For just 2 of them.

[toxo]

If they are anything like the nuts on the mk2 turbo exhaust + manifold they will be single use - they're slightly oval shaped so they grip when first tightened up but once you take them off they're misshapen so you can't use them again. Might be where your initial problem came from!

[System-G]

Any idea what the torque setting would be so the bloody things dont come off again.??

I use tention washers and tighten up as tight as poss with a ratcheting ring spanner or socket and then tweek with a 1' breaker bar. Check after a couple hundred miles just to be sure.

[kaiowas]

Any idea what the torque setting would be so the bloody things dont come off again.??

As tight as you can get them works for me. I've found that the various threads easily get clogged up with crap particularly with them being pretty exposed under the car and with the temperatures they get up to. You can find yourself applying loads of torque to the nuts whilst still not actually applying much clamping load to the exhaust flange simply because you're just working against the friction in the threads.

Ideally you want to use new studs and nuts plus run a tap down the threads in the manifold to clean them up. At a push if new studs/nuts aren't available then just cleaning up the threads on the old studs/nuts with a tap & die will make things much better.be fine.

[Grendel]

Considering how much Mr T want for just 2 i may buy these:

http://cgi.ebay.co.uk/M10-X-1-25-PITCH- ... 2a01a2494b

I presume they would fit?
Had a look around for engineering supplier in Southampton but most have closed down.

[ligertigon]

I drilled out my downpipe with 10.2mm bit, and re-tapped for m12 1.75 thread. No more leaks!!

The originals are a weedy size imo

[Grendel]

All i want to do is just bolt the thing back together since it only has one bolt on it at present. So would the E-bay one fit?

If they are anything like the nuts on the mk2 turbo exhaust + manifold they will be single use - they're slightly oval shaped so they grip when first tightened up but once you take them off they're misshapen so you can't use them again. Might be where your initial problem came from!

Thats the reason they fell off i re-used the old nuts.

[kevin..in]

£1325 + vat for the studs

I'd heard mrT were pricey......

I have fat fingers and poor eye sight its £1.35 + vat for the studs, or was when I last got them